US20160359880A1 - Geo visualization of network flows - Google Patents
Geo visualization of network flows Download PDFInfo
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- US20160359880A1 US20160359880A1 US15/173,444 US201615173444A US2016359880A1 US 20160359880 A1 US20160359880 A1 US 20160359880A1 US 201615173444 A US201615173444 A US 201615173444A US 2016359880 A1 US2016359880 A1 US 2016359880A1
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Definitions
- the present technology pertains visualization of a network flows, and more specifically to the visualization of attack and normal flows on a dynamic map graphical user interface.
- Datacenters can include a large number of servers and virtual machines. As such datacenters can have a large number of data flows between each server and virtual machine. Monitoring and managing the network of a datacenter can be cumbersome especially with a datacenter with a large number of servers, virtual machines and data flows. Visualizing the network of a datacenter can help network operators manage and monitor the network of a datacenter. One method of visualization that can be helpful is to visualize where data flows are coming from in the world.
- FIG. 1 illustrates an example of a network traffic monitoring system in accordance with some embodiments
- FIG. 2 illustrates an example of a network environment in accordance with some embodiments
- FIG. 3 illustrates an example of a data pipeline for determining clusters in an application dependency map in accordance with some embodiments
- FIG. 4A illustrates an example graphical user interface for visualizing attack points on a map in accordance with some embodiments
- FIG. 4B illustrates an example graphical user interface for visualizing attack flows and normal flows on a map in accordance with some embodiments
- FIG. 4C illustrates an example graphical user interface including an interactive chart to identify characteristics of flows and to filter flows in accordance with some embodiments
- FIG. 4D illustrates an example graphical user interface including an information graphic to identify characteristics of flows in accordance with some embodiments
- FIG. 4E illustrates an example graphical user interface including an interactive graphical user interface control to expand search criteria in accordance with some embodiments
- FIG. 4F illustrates an example graphical user interface illustrating the results of expanding the search criteria as illustrated in FIG. 4E in accordance with some embodiments
- FIG. 4G illustrates an example graphical user interface including an information graphic to identify characteristics of flows in accordance with some embodiments
- FIG. 5 illustrates an example method in accordance with some embodiments
- FIG. 6 illustrate example interactive 3-D pie chart in accordance with some embodiments.
- FIG. 7 illustrates an example system embodiment.
- the present technology is directed to mapping flow data and overlaying it on a geographic map. Furthermore the geographical map can also display attacks and the flow of an attack from the source to a logical entity. The map additionally can be accompanied with a pie chart relating to the attacks and intensity of attacks. Normal flows can also be displayed on the map along with the attack flows.
- Data can be gathered from an analytics layer including attributes of a data flow.
- One attribute of the data flow can be the geographic location or positioning of the flow of data traveling from one logical entity to another logical entity. Mapping this data on a geographical map shows visualization of data flowing from one logical entity to another.
- the geographical map can also display attacks and the flow of an attack from the source to a logical entity. Intensity of the attack or counts of an attack can also be shown.
- the map additionally can be accompanied with a pie chart relating to the attacks.
- the pie chart can show depth to represent the severity of the attacks.
- the pie chart can also be organized to show which attacked logical entity is ranked higher in importance.
- Data flows visualized on the geographic map can include attack flows and normal flows.
- a radius of attack point can be expanded to display and analyze additional flows.
- FIG. 1 is an illustration of a network traffic monitoring system 100 in accordance with an embodiment.
- the network traffic monitoring system 100 can include a configuration manager 102 , sensors 104 , a collector module 106 , a data mover module 108 , an analytics engine 110 , and a presentation module 112 .
- the analytics engine 110 is also shown in communication with out-of-band data sources 114 , third party data sources 116 , and a network controller 118 .
- the configuration manager 102 can be used to provision and maintain the sensors 104 , including installing sensor software or firmware in various nodes of a network, configuring the sensors 104 , updating the sensor software or firmware, among other sensor management tasks.
- the sensors 104 can be implemented as virtual partition images (e.g., virtual machine (VM) images or container images), and the configuration manager 102 can distribute the images to host machines.
- a virtual partition may be an instance of a VM, container, sandbox, or other isolated software environment.
- the software environment may include an operating system and application software.
- the virtual partition may appear to be, for example, one of many servers or one of many operating systems executed on a single physical server.
- the configuration manager 102 can instantiate a new virtual partition or migrate an existing partition to a different physical server.
- the configuration manager 102 can also be used to configure the new or migrated sensor.
- the configuration manager 102 can monitor the health of the sensors 104 .
- the configuration manager 102 may request for status updates and/or receive heartbeat messages, initiate performance tests, generate health checks, and perform other health monitoring tasks.
- the configuration manager 102 can also authenticate the sensors 104 .
- the sensors 104 can be assigned a unique identifier, such as by using a one-way hash function of a sensor's basic input/out system (BIOS) universally unique identifier (UUID) and a secret key stored by the configuration image manager 102 .
- BIOS basic input/out system
- UUID universally unique identifier
- the UUID can be a large number that may be difficult for a malicious sensor or other device or component to guess.
- the configuration manager 102 can keep the sensors 104 up to date by installing the latest versions of sensor software and/or applying patches. The configuration manager 102 can obtain these updates automatically from a local source or the Internet.
- the sensors 104 can reside on various nodes of a network, such as a virtual partition (e.g., VM or container) 120 ; a hypervisor or shared kernel managing one or more virtual partitions and/or physical servers 122 , an application-specific integrated circuit (ASIC) 124 of a switch, router, gateway, or other networking device, or a packet capture (pcap) 126 appliance (e.g., a standalone packet monitor, a device connected to a network devices monitoring port, a device connected in series along a main trunk of a datacenter, or similar device), or other element of a network.
- a virtual partition e.g., VM or container
- ASIC application-specific integrated circuit
- pcap packet capture
- the sensors 104 can monitor network traffic between nodes, and send network traffic data and corresponding data (e.g., host data, process data, user data, etc.) to the collectors 108 for storage.
- network traffic data and corresponding data e.g., host data, process data, user data, etc.
- the sensors 104 can sniff packets being sent over its hosts' physical or virtual network interface card (NIC), or individual processes can be configured to report network traffic and corresponding data to the sensors 104 .
- NIC physical or virtual network interface card
- Incorporating the sensors 104 on multiple nodes and within multiple partitions of some nodes of the network can provide for robust capture of network traffic and corresponding data from each hop of data transmission.
- each node of the network (e.g., VM, container, or other virtual partition 120 , hypervisor, shared kernel, or physical server 122 , ASIC 124 , pcap 126 , etc.) includes a respective sensor 104 .
- VM virtual partition
- hypervisor shared kernel
- physical server 122 e.g., a server 116 , a server 116 , a server 116 , a server 116 , etc.
- ASIC 124 e.g., pcap 126 , etc.
- each node of the network includes a respective sensor 104 .
- various software and hardware configurations can be used to implement the sensor network 104 .
- the network traffic data can include metadata relating to a packet, a collection of packets, a flow, a bidirectional flow, a group of flows, a session, or a network communication of another granularity. That is, the network traffic data can generally include any information describing communication on all layers of the Open Systems Interconnection (OSI) model.
- OSI Open Systems Interconnection
- the network traffic data can include source/destination MAC address, source/destination IP address, protocol, port number, etc.
- the network traffic data can also include summaries of network activity or other network statistics such as number of packets, number of bytes, number of flows, bandwidth usage, response time, latency, packet loss, jitter, and other network statistics.
- the sensors 104 can also determine additional data for each session, bidirectional flow, flow, packet, or other more granular or less granular network communication.
- the additional data can include host and/or endpoint information, virtual partition information, sensor information, process information, user information, tenant information, application information, network topology, application dependency mapping, cluster information, or other information corresponding to each flow.
- the sensors 104 can perform some preprocessing of the network traffic and corresponding data before sending the data to the collectors 108 .
- the sensors 104 can remove extraneous or duplicative data or they can create summaries of the data (e.g., latency, number of packets per flow, number of bytes per flow, number of flows, etc.).
- the sensors 104 can be configured to only capture certain types of network information and disregard the rest.
- the sensors 104 can be configured to capture only a representative sample of packets (e.g., every 1,000th packet or other suitable sample rate) and corresponding data.
- network traffic and corresponding data can be collected from multiple vantage points or multiple perspectives in the network to provide a more comprehensive view of network behavior.
- the capture of network traffic and corresponding data from multiple perspectives rather than just at a single sensor located in the data path or in communication with a component in the data path, allows the data to be correlated from the various data sources, which may be used as additional data points by the analytics engine 110 . Further, collecting network traffic and corresponding data from multiple points of view ensures more accurate data is captured.
- a conventional sensor network may be limited to sensors running on external-facing network devices (e.g., routers, switches, network appliances, etc.) such that east-west traffic, including VM-to-VM or container-to-container traffic on a same host, may not be monitored.
- east-west traffic including VM-to-VM or container-to-container traffic on a same host
- packets that are dropped before traversing a network device or packets containing errors may not be accurately monitored by the conventional sensor network.
- the sensor network 104 of various embodiments substantially mitigates or eliminates these issues altogether by locating sensors at multiple points of potential failure.
- the network traffic monitoring system 100 can verify multiple instances of data for a flow (e.g., source endpoint flow data, network device flow data, and endpoint flow data) against one another.
- the network traffic monitoring system 100 can assess a degree of accuracy of flow data sets from multiple sensors and utilize a flow data set from a single sensor determined to be the most accurate and/or complete.
- the degree of accuracy can be based on factors such as network topology (e.g., a sensor closer to the source may be more likely to be more accurate than a sensor closer to the destination), a state of a sensor or a node hosting the sensor (e.g., a compromised sensor/node may have less accurate flow data than an uncompromised sensor/node), or flow data volume (e.g., a sensor capturing a greater number of packets for a flow may be more accurate than a sensor capturing a smaller number of packets).
- network topology e.g., a sensor closer to the source may be more likely to be more accurate than a sensor closer to the destination
- a state of a sensor or a node hosting the sensor e.g., a compromised sensor/node may have less accurate flow data than an
- the network traffic monitoring system 100 can assemble the most accurate flow data set and corresponding data from multiple sensors. For instance, a first sensor along a data path may capture data for a first packet of a flow but may be missing data for a second packet of the flow while the situation is reversed for a second sensor along the data path. The network traffic monitoring system 100 can assemble data for the flow from the first packet captured by the first sensor and the second packet captured by the second sensor.
- the sensors 104 can send network traffic and corresponding data to the collectors 106 .
- each sensor can be assigned to a primary collector and a secondary collector as part of a high availability scheme. If the primary collector fails or communications between the sensor and the primary collector are not otherwise possible, a sensor can send its network traffic and corresponding data to the secondary collector. In other embodiments, the sensors 104 are not assigned specific collectors but the network traffic monitoring system 100 can determine an optimal collector for receiving the network traffic and corresponding data through a discovery process.
- a sensor can change where it sends it network traffic and corresponding data if its environments changes, such as if a default collector fails or if the sensor is migrated to a new location and it would be optimal for the sensor to send its data to a different collector. For example, it may be preferable for the sensor to send its network traffic and corresponding data on a particular path and/or to a particular collector based on latency, shortest path, monetary cost (e.g., using private resources versus a public resources provided by a public cloud provider), error rate, or some combination of these factors.
- a sensor can send different types of network traffic and corresponding data to different collectors. For example, the sensor can send first network traffic and corresponding data related to one type of process to one collector and second network traffic and corresponding data related to another type of process to another collector.
- the collectors 106 can be any type of storage medium that can serve as a repository for the network traffic and corresponding data captured by the sensors 104 .
- data storage for the collectors 106 is located in an in-memory database, such as dashDB from IBM®, although it should be appreciated that the data storage for the collectors 106 can be any software and/or hardware capable of providing rapid random access speeds typically used for analytics software.
- the collectors 106 can utilize solid state drives, disk drives, magnetic tape drives, or a combination of the foregoing according to cost, responsiveness, and size requirements. Further, the collectors 106 can utilize various database structures such as a normalized relational database or a NoSQL database, among others.
- the collectors 106 may only serve as network storage for the network traffic monitoring system 100 .
- the network traffic monitoring system 100 can include a data mover module 108 for retrieving data from the collectors 106 and making the data available to network clients, such as the components of the analytics engine 110 .
- the data mover module 108 can serve as a gateway for presenting network-attached storage to the network clients.
- the collectors 106 can perform additional functions, such as organizing, summarizing, and preprocessing data. For example, the collectors 106 can tabulate how often packets of certain sizes or types are transmitted from different nodes of the network. The collectors 106 can also characterize the traffic flows going to and from various nodes.
- the collectors 106 can match packets based on sequence numbers, thus identifying traffic flows and connection links. As it may be inefficient to retain all data indefinitely in certain circumstances, in some embodiments, the collectors 106 can periodically replace detailed network traffic data with consolidated summaries. In this manner, the collectors 106 can retain a complete dataset describing one period (e.g., the past minute or other suitable period of time), with a smaller dataset of another period (e.g., the previous 2-10 minutes or other suitable period of time), and progressively consolidate network traffic and corresponding data of other periods of time (e.g., day, week, month, year, etc.).
- one period e.g., the past minute or other suitable period of time
- another period e.g., the previous 2-10 minutes or other suitable period of time
- progressively consolidate network traffic and corresponding data of other periods of time e.g., day, week, month, year, etc.
- network traffic and corresponding data for a set of flows identified as normal or routine can be winnowed at an earlier period of time while a more complete data set may be retained for a lengthier period of time for another set of flows identified as anomalous or as an attack.
- Computer networks may be exposed to a variety of different attacks that expose vulnerabilities of computer systems in order to compromise their security. Some network traffic may be associated with malicious programs or devices.
- the analytics engine 110 may be provided with examples of network states corresponding to an attack and network states corresponding to normal operation. The analytics engine 110 can then analyze network traffic and corresponding data to recognize when the network is under attack.
- the network may operate within a trusted environment for a period of time so that the analytics engine 110 can establish a baseline of normal operation. Since malware is constantly evolving and changing, machine learning may be used to dynamically update models for identifying malicious traffic patterns.
- the analytics engine 110 may be used to identify observations which differ from other examples in a dataset. For example, if a training set of example data with known outlier labels exists, supervised anomaly detection techniques may be used. Supervised anomaly detection techniques utilize data sets that have been labeled as normal and abnormal and train a classifier. In a case in which it is unknown whether examples in the training data are outliers, unsupervised anomaly techniques may be used. Unsupervised anomaly detection techniques may be used to detect anomalies in an unlabeled test data set under the assumption that the majority of instances in the data set are normal by looking for instances that seem to fit to the remainder of the data set.
- the analytics engine 110 can include a data lake 130 , an application dependency mapping (ADM) module 140 , and elastic processing engines 150 .
- the data lake 130 is a large-scale storage repository that provides massive storage for various types of data, enormous processing power, and the ability to handle nearly limitless concurrent tasks or jobs.
- the data lake 130 is implemented using the Hadoop® Distributed File System (HDFSTM) from Apache® Software Foundation of Forest Hill, Md.
- HDFSTM is a highly scalable and distributed file system that can scale to thousands of cluster nodes, millions of files, and petabytes of data.
- HDFSTM is optimized for batch processing where data locations are exposed to allow computations to take place where the data resides.
- HDFSTM provides a single namespace for an entire cluster to allow for data coherency in a write-once, read-many access model. That is, clients can only append to existing files in the node.
- files are separated into blocks, which are typically 64 MB in size and are replicated in multiple data nodes. Clients access data directly from data nodes.
- the data mover 108 receives raw network traffic and corresponding data from the collectors 106 and distributes or pushes the data to the data lake 130 .
- the data lake 130 can also receive and store out-of-band data 114 , such as statuses on power levels, network availability, server performance, temperature conditions, cage door positions, and other data from internal sources, and third party data 116 , such as security reports (e.g., provided by Cisco® Systems, Inc. of San Jose, Calif., Arbor Networks® of Burlington, Mass., Symantec® Corp. of Sunnyvale, Calif., Sophos® Group plc of Abingdon, England, Microsoft® Corp. of Seattle, Wash., Verizon® Communications, Inc.
- security reports e.g., provided by Cisco® Systems, Inc. of San Jose, Calif., Arbor Networks® of Burlington, Mass., Symantec® Corp. of Sunnyvale, Calif., Sophos® Group plc of Abingdon, England, Microsoft® Corp. of Seattle, Wash., Verizon® Communications
- the data lake 130 may instead fetch or pull raw traffic and corresponding data from the collectors 106 and relevant data from the out-of-band data sources 114 and the third party data sources 116 .
- the functionality of the collectors 106 , the data mover 108 , the out-of-band data sources 114 , the third party data sources 116 , and the data lake 130 can be combined. Various combinations and configurations are possible as would be known to one of ordinary skill in the art.
- Each component of the data lake 130 can perform certain processing of the raw network traffic data and/or other data (e.g., host data, process data, user data, out-of-band data or third party data) to transform the raw data to a form useable by the elastic processing engines 150 .
- the data lake 130 can include repositories for flow attributes 132 , host and/or endpoint attributes 134 , process attributes 136 , and policy attributes 138 .
- the data lake 130 can also include repositories for VM or container attributes, application attributes, tenant attributes, network topology, application dependency maps, cluster attributes, etc.
- the flow attributes 132 relate to information about flows traversing the network.
- a flow is generally one or more packets sharing certain attributes that are sent within a network within a specified period of time.
- the flow attributes 132 can include packet header fields such as a source address (e.g., Internet Protocol (IP) address, Media Access Control (MAC) address, Domain Name System (DNS) name, or other network address), source port, destination address, destination port, protocol type, class of service, among other fields.
- IP Internet Protocol
- MAC Media Access Control
- DNS Domain Name System
- the source address may correspond to a first endpoint (e.g., network device, physical server, virtual partition, etc.) of the network
- the destination address may correspond to a second endpoint, a multicast group, or a broadcast domain.
- the flow attributes 132 can also include aggregate packet data such as flow start time, flow end time, number of packets for a flow, number of bytes for a flow, the union of TCP flags for a flow, among other flow data.
- the host and/or endpoint attributes 134 describe host and/or endpoint data for each flow, and can include host and/or endpoint name, network address, operating system, CPU usage, network usage, disk space, ports, logged users, scheduled jobs, open files, and information regarding files and/or directories stored on a host and/or endpoint (e.g., presence, absence, or modifications of log files, configuration files, device special files, or protected electronic information).
- the host and/or endpoints attributes 134 can also include the out-of-band data 114 regarding hosts such as power level, temperature, and physical location (e.g., room, row, rack, cage door position, etc.) or the third party data 116 such as whether a host and/or endpoint is on an IP watch list or otherwise associated with a security threat, Whois data, or geocoordinates.
- the out-of-band data 114 and the third party data 116 may be associated by process, user, flow, or other more granular or less granular network element or network communication.
- the process attributes 136 relate to process data corresponding to each flow, and can include process name (e.g., bash, httpd, netstat, etc.), ID, parent process ID, path (e.g., /usr 2 /username/bin/, /usr/local/bin, /usr/bin, etc.), CPU utilization, memory utilization, memory address, scheduling information, nice value, flags, priority, status, start time, terminal type, CPU time taken by the process, the command that started the process, and information regarding a process owner (e.g., user name, ID, user's real name, e-mail address, user's groups, terminal information, login time, expiration date of login, idle time, and information regarding files and/or directories of the user).
- process name e.g., bash, httpd, netstat, etc.
- ID e.g., bash, httpd, netstat, etc.
- path e.g., /usr 2 /username/bin/, /us
- the policy attributes 138 contain information relating to network policies. Policies establish whether a particular flow is allowed or denied by the network as well as a specific route by which a packet traverses the network. Policies can also be used to mark packets so that certain kinds of traffic receive differentiated service when used in combination with queuing techniques such as those based on priority, fairness, weighted fairness, token bucket, random early detection, round robin, among others.
- the policy attributes 138 can include policy statistics such as a number of times a policy was enforced or a number of times a policy was not enforced.
- the policy attributes 138 can also include associations with network traffic data. For example, flows found to be non-conformant can be linked or tagged with corresponding policies to assist in the investigation of non-conformance.
- the analytics engine 110 may include any number of engines 150 , including for example, a flow engine 152 for identifying flows (e.g., flow engine 152 ) or an attacks engine 154 for identify attacks to the network.
- the analytics engine can include a separate distributed denial of service (DDoS) attack engine 155 for specifically detecting DDoS attacks.
- a DDoS attack engine may be a component or a sub-engine of a general attacks engine.
- the attacks engine 154 and/or the DDoS engine 155 can use machine learning techniques to identify security threats to a network.
- the attacks engine 154 and/or the DDoS engine 155 can be provided with examples of network states corresponding to an attack and network states corresponding to normal operation.
- the attacks engine 154 and/or the DDoS engine 155 can then analyze network traffic data to recognize when the network is under attack.
- the network can operate within a trusted environment for a time to establish a baseline for normal network operation for the attacks engine 154 and/or the DDoS.
- the analytics engine 110 may further include a search engine 156 .
- the search engine 156 may be configured, for example to perform a structured search, an NLP (Natural Language Processing) search, or a visual search. Data may be provided to the engines from one or more processing components.
- NLP Natural Language Processing
- the analytics engine 110 can also include a policy engine 158 that manages network policy, including creating and/or importing policies, monitoring policy conformance and non-conformance, enforcing policy, simulating changes to policy or network elements affecting policy, among other policy-related tasks.
- a policy engine 158 that manages network policy, including creating and/or importing policies, monitoring policy conformance and non-conformance, enforcing policy, simulating changes to policy or network elements affecting policy, among other policy-related tasks.
- the ADM module 140 can determine dependencies of applications of the network. That is, particular patterns of traffic may correspond to an application, and the interconnectivity or dependencies of the application can be mapped to generate a graph for the application (i.e., an application dependency mapping).
- an application refers to a set of networking components that provides connectivity for a given set of workloads. For example, in a conventional three-tier architecture for a web application, first endpoints of the web tier, second endpoints of the application tier, and third endpoints of the data tier make up the web application.
- the ADM module 140 can receive input data from various repositories of the data lake 130 (e.g., the flow attributes 132 , the host and/or endpoint attributes 134 , the process attributes 136 , etc.).
- the ADM module 140 may analyze the input data to determine that there is first traffic flowing between external endpoints on port 80 of the first endpoints corresponding to Hypertext Transfer Protocol (HTTP) requests and responses.
- HTTP Hypertext Transfer Protocol
- the input data may also indicate second traffic between first ports of the first endpoints and second ports of the second endpoints corresponding to application server requests and responses and third traffic flowing between third ports of the second endpoints and fourth ports of the third endpoints corresponding to database requests and responses.
- the ADM module 140 may define an ADM for the web application as a three-tier application including a first EPG comprising the first endpoints, a second EPG comprising the second endpoints, and a third EPG comprising the third endpoints.
- the presentation module 116 can include an application programming interface (API) or command line interface (CLI) 160 , a security information and event management (SIEM) interface 162 , and a web front-end 164 .
- API application programming interface
- CLI command line interface
- SIEM security information and event management
- the presentation module 116 can take the analytics data generated by analytics engine 110 and further summarize, filter, and organize the analytics data as well as create intuitive presentations for the analytics data.
- the API or CLI 160 can be implemented using Hadoop® Hive from Apache® for the back end, and Java® Database Connectivity (JDBC) from Oracle® Corporation of Redwood Shores, Calif., as an API layer.
- Hive is a data warehouse infrastructure that provides data summarization and ad hoc querying. Hive provides a mechanism to query data using a variation of structured query language (SQL) that is called HiveQL.
- SQL structured query language
- JDBC is an application programming interface (API) for the programming language Java®, which defines how a client may access a database.
- the SIEM interface 162 can be implemented using Hadoop® Kafka for the back end, and software provided by Splunk®, Inc. of San Francisco, Calif. as the SIEM platform.
- Kafka is a distributed messaging system that is partitioned and replicated. Kafka uses the concept of topics. Topics are feeds of messages in specific categories.
- Kafka can take raw packet captures and telemetry information from the data mover 108 as input, and output messages to a SIEM platform, such as Splunk®.
- the Splunk® platform is utilized for searching, monitoring, and analyzing machine-generated data.
- the web front-end 164 can be implemented using software provided by MongoDB®, Inc. of New York, N.Y. and Hadoop® ElasticSearch from Apache® for the back-end, and Ruby on RailsTM as the web application framework.
- MongoDB® is a document-oriented NoSQL database based on documents in the form of JavaScript® Object Notation (JSON) with dynamic schemas.
- ElasticSearch is a scalable and real-time search and analytics engine that provides domain-specific language (DSL) full querying based on JSON.
- Ruby on RailsTM is model-view-controller (MVC) framework that provides default structures for a database, a web service, and web pages. Ruby on RailsTM relies on web standards such as JSON or extensible markup language (XML) for data transfer, and hypertext markup language (HTML), cascading style sheets, (CSS), and JavaScript® for display and user interfacing.
- JSON JavaScript® Object Notation
- ElasticSearch is a scalable and
- FIG. 1 illustrates an example configuration of the various components of a network traffic monitoring system
- the components of the network traffic monitoring system 100 or any system described herein can be configured in a number of different ways and can include any other type and number of components.
- the sensors 104 , the collectors 106 , the data mover 108 , and the data lake 130 can belong to one hardware and/or software module or multiple separate modules.
- Other modules can also be combined into fewer components and/or further divided into more components.
- FIG. 2 illustrates an example of a network environment 200 in accordance with an embodiment.
- a network traffic monitoring system such as the network traffic monitoring system 100 of FIG. 1
- the network environment 200 can include any number or type of resources, which can be accessed and utilized by clients or tenants. The illustrations and examples provided herein are for clarity and simplicity.
- the network environment 200 can include a network fabric 202 , a Layer 2 (L2) network 204 , a Layer 3 (L3) network 206 , and servers 208 a , 208 b , 208 c , 208 d , and 208 e (collectively, 208 ).
- the network fabric 202 can include spine switches 210 a , 210 b , 210 c , and 210 d (collectively, “ 210 ”) and leaf switches 212 a , 212 b , 212 c , 212 d , and 212 e (collectively, “ 212 ”).
- the spine switches 210 can connect to the leaf switches 212 in the network fabric 202 .
- the leaf switches 212 can include access ports (or non-fabric ports) and fabric ports.
- the fabric ports can provide uplinks to the spine switches 210 , while the access ports can provide connectivity to endpoints (e.g., the servers 208 ), internal networks (e.g., the L2 network 204 ), or external networks (e.g., the L3 network 206 ).
- the leaf switches 212 can reside at the edge of the network fabric 202 , and can thus represent the physical network edge.
- the leaf switches 212 d and 212 e operate as border leaf switches in communication with edge devices 214 located in the external network 206 .
- the border leaf switches 212 d and 212 e may be used to connect any type of external network device, service (e.g., firewall, deep packet inspector, traffic monitor, load balancer, etc.), or network (e.g., the L3 network 206 ) to the fabric 202 .
- the network fabric 202 is illustrated and described herein as an example leaf-spine architecture, one of ordinary skill in the art will readily recognize that various embodiments can be implemented based on any network topology, including any data center or cloud network fabric. Indeed, other architectures, designs, infrastructures, and variations are contemplated herein. For example, the principles disclosed herein are applicable to topologies including three-tier (including core, aggregation, and access levels), fat tree, mesh, bus, hub and spoke, etc.
- the leaf switches 212 can be top-of-rack switches configured according to a top-of-rack architecture.
- the leaf switches 212 can be aggregation switches in any particular topology, such as end-of-row or middle-of-row topologies.
- the leaf switches 212 can also be implemented using aggregation switches.
- the topology illustrated in FIG. 2 and described herein is readily scalable and may accommodate a large number of components, as well as more complicated arrangements and configurations.
- the network may include any number of fabrics 202 , which may be geographically dispersed or located in the same geographic area.
- network nodes may be used in any suitable network topology, which may include any number of servers, virtual machines or containers, switches, routers, appliances, controllers, gateways, or other nodes interconnected to form a large and complex network. Nodes may be coupled to other nodes or networks through one or more interfaces employing any suitable wired or wireless connection, which provides a viable pathway for electronic communications.
- Network communications in the network fabric 202 can flow through the leaf switches 212 .
- the leaf switches 212 can provide endpoints (e.g., the servers 208 ), internal networks (e.g., the L2 network 204 ), or external networks (e.g., the L3 network 206 ) access to the network fabric 202 , and can connect the leaf switches 212 to each other.
- the leaf switches 212 can connect endpoint groups (EPGs) to the network fabric 202 , internal networks (e.g., the L2 network 204 ), and/or any external networks (e.g., the L3 network 206 ).
- EPGs are groupings of applications, or application components, and tiers for implementing forwarding and policy logic.
- EPGs can allow for separation of network policy, security, and forwarding from addressing by using logical application boundaries.
- EPGs can be used in the network environment 200 for mapping applications in the network.
- EPGs can comprise a grouping of endpoints in the network indicating connectivity and policy for applications.
- the servers 208 can connect to the network fabric 202 via the leaf switches 212 .
- the servers 208 a and 208 b can connect directly to the leaf switches 212 a and 212 b , which can connect the servers 208 a and 208 b to the network fabric 202 and/or any of the other leaf switches.
- the servers 208 c and 208 d can connect to the leaf switches 212 b and 212 c via the L2 network 204 .
- the servers 208 c and 208 d and the L2 network 204 make up a local area network (LAN).
- LANs can connect nodes over dedicated private communications links located in the same general physical location, such as a building or campus.
- the WAN 206 can connect to the leaf switches 212 d or 212 e via the L3 network 206 .
- WANs can connect geographically dispersed nodes over long-distance communications links, such as common carrier telephone lines, optical light paths, synchronous optical networks (SONET), or synchronous digital hierarchy (SDH) links.
- LANs and WANs can include L2 and/or L3 networks and endpoints.
- the Internet is an example of a WAN that connects disparate networks throughout the world, providing global communication between nodes on various networks.
- the nodes typically communicate over the network by exchanging discrete frames or packets of data according to predefined protocols, such as the Transmission Control Protocol/Internet Protocol (TCP/IP).
- TCP/IP Transmission Control Protocol/Internet Protocol
- a protocol can refer to a set of rules defining how the nodes interact with each other.
- Computer networks may be further interconnected by an intermediate network node, such as a router, to extend the effective size of each network.
- the endpoints 208 can include any communication device or component, such as a computer, server, blade, hypervisor, virtual machine, container, process (e.g., running on a virtual machine), switch, router, gateway, host, device, external network, etc.
- the network environment 200 also includes a network controller running on the host 208 a .
- the network controller is implemented using the Application Policy Infrastructure Controller (APICTM) from Cisco®.
- APICTM Application Policy Infrastructure Controller
- Cisco® Cisco®
- the APICTM provides a centralized point of automation and management, policy programming, application deployment, and health monitoring for the fabric 202 .
- the APICTM is operated as a replicated synchronized clustered controller.
- SDN software-defined networking
- a physical server 208 may have instantiated thereon a hypervisor 216 for creating and running one or more virtual switches (not shown) and one or more virtual machines 218 , as shown for the host 208 b .
- physical servers may run a shared kernel for hosting containers.
- the physical server 208 can run other software for supporting other virtual partitioning approaches.
- Networks in accordance with various embodiments may include any number of physical servers hosting any number of virtual machines, containers, or other virtual partitions.
- Hosts may also comprise blade/physical servers without virtual machines, containers, or other virtual partitions, such as the servers 208 a , 208 c , 208 d , and 208 e.
- the network environment 200 can also integrate a network traffic monitoring system, such as the network traffic monitoring system 100 shown in FIG. 1 .
- the network traffic monitoring system of FIG. 2 includes sensors 220 a , 220 b , 220 c , and 220 d (collectively, “ 220 ”), collectors 222 , and an analytics engine, such as the analytics engine 110 of FIG. 1 , executing on the server 208 e .
- the analytics engine 208 e can receive and process network traffic data collected by the collectors 222 and detected by the sensors 220 placed on nodes located throughout the network environment 200 .
- the analytics engine 208 e is shown to be a standalone network appliance in FIG.
- the analytics engine 208 e can also be implemented as a virtual partition (e.g., VM or container) that can be distributed onto a host or cluster of hosts, software as a service (SaaS), or other suitable method of distribution.
- the sensors 220 run on the leaf switches 212 (e.g., the sensor 220 a ), the hosts 208 (e.g., the sensor 220 b ), the hypervisor 216 (e.g., the sensor 220 c ), and the VMs 218 (e.g., the sensor 220 d ).
- the sensors 220 can also run on the spine switches 210 , virtual switches, service appliances (e.g., firewall, deep packet inspector, traffic monitor, load balancer, etc.) and in between network elements.
- sensors 220 can be located at each (or nearly every) network component to capture granular packet statistics and data at each hop of data transmission.
- the sensors 220 may not be installed in all components or portions of the network (e.g., shared hosting environment in which customers have exclusive control of some virtual machines).
- a host may include multiple sensors 220 running on the host (e.g., the host sensor 220 b ) and various components of the host (e.g., the hypervisor sensor 220 c and the VM sensor 220 d ) so that all (or substantially all) packets traversing the network environment 200 may be monitored. For example, if one of the VMs 218 running on the host 208 b receives a first packet from the WAN 206 , the first packet may pass through the border leaf switch 212 d , the spine switch 210 b , the leaf switch 212 b , the host 208 b , the hypervisor 216 , and the VM.
- the first packet will likely be identified and reported to one of the collectors 222 .
- sensors installed along the data path such as at the VM 218 , the hypervisor 216 , the host 208 b , the leaf switch 212 b , and the host 208 d will likely result in capture of metadata from the second packet.
- FIG. 3 illustrates an example of a data pipeline 300 for determining clusters in an application dependency map in accordance with an example embodiment.
- the data pipeline 300 can be directed by a network traffic monitoring system, such as the network traffic monitoring system 100 of FIG. 1 ; an analytics engine, such as the analytics engine 110 of FIG. 1 ; an application dependency mapping module, such as the ADM module 140 of FIG. 1 ; or other network service or network appliance.
- the data pipeline 300 includes a data collection stage 302 in which network traffic data and corresponding data (e.g., host data, process data, user data, etc.) are captured by sensors (e.g., the sensors 104 of FIG. 1 ) located throughout the network.
- the data may comprise, for example, raw flow data and raw process data.
- the data can be captured from multiple perspectives to provide a comprehensive view of the network.
- the data collected may also include other types of information, such as tenant information, virtual partition information, out-of-band information, third party information, and other relevant information.
- the flow data and associated data can be aggregated and summarized daily or according to another suitable increment of time, and flow vectors, process vectors, host vectors, and other attribute vectors can be calculated during the data collection stage 302 . This can substantially reduce processing during an ADM run.
- the data pipeline 300 also includes an ADM input data stage 304 in which a network or security administrator or other authorized user may configure an ADM run by selecting the date range of the flow data and associated data to analyze, and those nodes for which the administrator wants application dependency maps and/or cluster information.
- the administrator can also input side information, such as server load balance, route tags, and previously identified clusters during the ADM input data stage 304 .
- the side information can be automatically pulled or another network element can push the side information for the ADM run.
- the next stage of the data pipeline 300 is pre-processing 306 .
- nodes of the network are partitioned into selected node and dependency node subnets.
- Selected nodes are those nodes for which the user requests application dependency maps and cluster information.
- Dependency nodes are those nodes that are not explicitly selected by the users for an ADM run but are nodes that communicate with the selected nodes.
- edges of an application dependency map i.e., flow data
- unprocessed attribute vectors can be analyzed.
- Other tasks can also be performed during the pre-processing stage 306 , including identifying dependencies of the selected nodes and the dependency nodes; replacing the dependency nodes with tags based on the dependency nodes' subnet names; extracting attribute vectors for the selected nodes, such as by aggregating daily vectors across multiple days, calculating term frequency-inverse document frequency (tf-idf), and normalizing the vectors (e.g., l 2 normalization); and identifying existing clusters.
- tf-idf term frequency-inverse document frequency
- the pre-processing stage 306 can include early attribute fusion pre-processing.
- Early fusion is a fusion scheme in which attributes are combined into a single representation. Attributes may be derived from various domains (e.g., network, host, virtual partition, process, user, etc.), and an attribute vector in an early fusion system may represent the concatenation of disparate attribute types or domains.
- Early fusion may be effective for attributes that are similar or have a similar structure (e.g., fields of TCP and UDP packets or flows). Such attributes may be characterized as being a same type or being within a same domain. Early fusion may be less effective for distant attributes or attributes of different types or domains (e.g., flow-based attributes versus process-based attributes). Thus, in some embodiments, only attributes in the network domain (i.e., network traffic-based attributes, such as packet header information, number of packets for a flow, number of bytes for a flow, and similar data) may be analyzed. In other embodiments, an ADM run may limit analysis to attributes in the process domain (i.e., process-based attributes, such as process name, parent process, process owner, etc.). In yet other embodiments, attribute sets in other domains (e.g., the host domain, virtual partition domain, user domain, etc.) may be the focus of the ADM run.
- network traffic-based attributes such as packet header information, number of packets for a flow
- the data pipeline 300 may proceed to a clustering stage 308 .
- various machine learning techniques can be implemented to analyze attribute vectors within a single domain or across different domains to determine the optimal clustering given a set of input nodes.
- Machine learning is an area of computer science in which the goal is to develop models using example observations (i.e., training data), that can be used to make predictions on new observations.
- the models or logic are not based on theory but are empirically based or data-driven.
- respective attribute vectors of nodes are evaluated using machine learning to identify an optimal clustering for a selected set of nodes.
- Supervised or unsupervised learning techniques can be used depending on the availability of training data and other related information (e.g., network topology).
- an ADM module (or other suitable system) can receive configuration information regarding a network from a configuration management system (CMS), configuration management database (CMDB), or other similar system.
- CMS configuration management system
- CMDB configuration management database
- the ADM module can receive the configuration data in a proprietary or open source format utilized by the CMS or CMDB and translate the information to training data observations for the particular machine learning approach(es) implemented by the ADM module.
- the CMS or CMDB and the ADM module may be closely integrated and the CMS or CMDB can automatically provide the ADM module with suitable training data.
- a network administrator or authorized user may receive the configuration data from the CM and the administrator or user can manually label nodes to create the training data.
- network traffic monitoring system 100 is useful for presenting a visualization of data flows so that a network administrator can better monitor or investigation data flows.
- Presentation module 112 can present a geographic map representing flows, which can allow an administrator to better understand characteristics of attack flows and normal flows.
- FIGS. 4A, 4B, 4c, 4D, 4E, 4F, and 4G illustrate an example graphical user interface for displaying data flows across geographic regions.
- FIG. 4A illustrates graphical user interface 400 including geographic map 401 .
- graphical user interface 400 includes a variety of controls useful for viewing and examining flows that have been identified as likely attacks, as well as viewing and examining normal flows (i.e., flows that have not been identified as likely attacks).
- Graphical user interface 400 can provide multiple views of attacks, including the illustrated view—an attack map 402 .
- Graphical user interface 400 can present a collection of attack points and flows matching search criteria.
- Search criteria can include a time period for which data flows were received. This time period can be displayed 404 in graphical user interface 400 .
- search criteria can specify regions of data flow origin, applications sending and receiving data flows, subnets, policies, attack type, or other attributes of data flows.
- attack points 406 matching a search criteria are displayed.
- all flows matching search criteria are displayed.
- Normal flows are illustrated as a dashed line, while attack flows are triangles. Displaying normal flows on the same map as attack flows can provide a useful visualization to identify potential characteristics of attacks. For example most of the normal flows do not originate from identified attack points 406 . This can indicate that attack points are entirely malicious and not likely to be responsible for any legitimate traffic. However, as illustrated more clearly in FIG. 4F , sometimes a normal flow can originate from an attack source, and this may suggest that the normal flow should be investigated more closely.
- FIG. 4C illustrates pie chart 408 that can be used to investigate and filter flows.
- Pie chart 408 illustrates a breakdown of the types of attack flows. The area of each slice of the pie chart indicates a relative volume of the attack flows that are of that type.
- Pie chart 408 is interactive and can receive inputs selecting slices of the pie. A selection of a slice of the pie chart can select that type of attack to be shown on map 401 while excluding other flows.
- FIG. 4D illustrates an information box 410 that can be displayed responsive to an input into the graphical user interfaces.
- the input includes hovering an input device over a point on the map 401 .
- the input could be a selection of the point or any other input mechanism.
- Information box 410 indicates where data flows are coming from, going to, and the quantity of attacks in the inbound and outbound data flows.
- FIG. 5 illustrates an example method of identifying an attack flow and then expanding the search to identify flows that were not identified as attack flows, but share characteristics in common with attack flows.
- FIG. 4E, and 4F illustrate aspects of the method in FIG. 5 .
- presentation module 112 searches 502 data analyzed by an analytics engine 110 in response to a received query to visualize data flows.
- Analytics engine 110 can identify 504 a plurality of data flows matching received search criteria.
- presentation module 112 can represent the plurality of data flows on geographic map 401 presented within graphical user interface 400 .
- graphical user interface 400 can receive 508 an input to expand a geographic radius of the attack point.
- FIG. 4E illustrates graphical user interface 400 receiving this input through an example user interface control 412 .
- Example user interface control 412 can be made to appear through a menu or through a context menu available from a right click on an attack point, or any other interaction known in the art.
- other criteria other than the geographic area can also be expanded. For example, if a search were limited to a particular application, the search could be broadened to identify all flows originating in the expanded geographic area having the same endpoint as one more of the flows identified by the original search. In some embodiments, a search can be refined to identify all flows similar to an identified flow that originated in the expanded search area.
- analytics engine 110 can search 510 for flows from the expanded geographic radius, and display 512 all flows matching the expanded search, as illustrated in FIG. 4F .
- FIG. 4F illustrates graphical user interface 400 updated to show all flows matching the expanded search area.
- original attack flows 415 as shown flowing between China and the United States.
- flows 417 which have not been identified as an attack flow, also flow from the same region in China to the same place in the US. It may be that while flow 417 has not been identified as an attack flow that it might be an attack flow and therefore might be worth additional investigation.
- FIG. 4G illustrates additional statistics relevant to the flows displayed in graphical user interface 400 .
- Informational display chart 414 represents an average intensity of an attack of a given classification. For example, chart 414 indicates that DDoS attacks number only one-third of the number of NULL Scan attacks, but the DDoS attacks are very intense—registering a 90 on the scale.
- An intensity of attack measure can vary depending on the type of attack.
- a DDoS attack might be measured in terms of amount of data being sent, while a NULL Scan attack might be measured by the number of requests and number of ports being requested.
- FIG. 6 represents another way to indicate intensity of attack.
- FIG. 6 illustrates a 3-D pie chart 600 , wherein a first pair of dimensions represents the categories of the plurality of data flows and the statistics pertinent to the categories of the plurality of data flows, and the second pair of dimensions represents the categories of data flows and an intensity of the category.
- This 3-D pie chart can replace pie chart 408 and still include the same functionality as described with respect to the 2-D pie chart.
- 3-D pie chart 600 includes multiple slices.
- the circumference of the pie chart taken up by the slice can indicate the amount of flows represented by this category.
- slices 604 and 602 represent relatively more flows of this type compared to slice 606 .
- the height of a slice of the pie can indicate an intensity of attack for the category.
- attacks of the category represented by slice 602 are relatively less intense that the attacks of the categories represented by slices 606 and 604 .
- slice 602 could represent the NULL scans that are higher in volume, but less intense, while slice 606 could represent the DDoS attacks that are lower in volume but more intense.
- FIG. 6 illustrates a conventional system bus computing system architecture 600 that can be used with any of the system components illustrated in FIG. 1 wherein the components of the system 600 are in electrical communication with each other using a bus 605 .
- Exemplary system 600 includes a processing unit (CPU or processor) 610 and a system bus 605 that couples various system components including the system memory 615 , such as read only memory (ROM) 670 and random access memory (RAM) 675 , to the processor 610 .
- the system 600 can include a cache of high-speed memory connected directly with, in close proximity to, or integrated as part of the processor 610 .
- the system 600 can copy data from the memory 615 and/or the storage device 630 to the cache 612 for quick access by the processor 610 .
- the cache can provide a performance boost that avoids processor 610 delays while waiting for data.
- These and other modules can control or be configured to control the processor 610 to perform various actions.
- Other system memory 615 may be available for use as well.
- the memory 615 can include multiple different types of memory with different performance characteristics.
- the processor 610 can include any general purpose processor and a hardware module or software module, such as module 1 637 , module 2 634 , and module 3 636 stored in storage device 630 , configured to control the processor 610 as well as a special-purpose processor where software instructions are incorporated into the actual processor design.
- the processor 610 may essentially be a completely self-contained computing system, containing multiple cores or processors, a bus, memory controller, cache, etc.
- a multi-core processor may be symmetric or asymmetric.
- an input device 645 can represent any number of input mechanisms, such as a microphone for speech, a touch-sensitive screen for gesture or graphical input, keyboard, mouse, motion input, speech and so forth.
- An output device 635 can also be one or more of a number of output mechanisms known to those of skill in the art.
- multimodal systems can enable a user to provide multiple types of input to communicate with the computing device 600 .
- the communications interface 640 can generally govern and manage the user input and system output. There is no restriction on operating on any particular hardware arrangement and therefore the basic attributes here may easily be substituted for improved hardware or firmware arrangements as they are developed.
- Storage device 630 is a non-volatile memory and can be a hard disk or other types of computer readable media which can store data that are accessible by a computer, such as magnetic cassettes, flash memory cards, solid state memory devices, digital versatile disks, cartridges, random access memories (RAMs) 675 , read only memory (ROM) 680 , and hybrids thereof.
- RAMs random access memories
- ROM read only memory
- the storage device 630 can include software modules 638 , 634 , 636 for controlling the processor 610 . Other hardware or software modules are contemplated.
- the storage device 630 can be connected to the system bus 605 .
- a hardware module that performs a particular function can include the software component stored in a computer-readable medium in connection with the necessary hardware components, such as the processor 610 , bus 605 , display 635 , and so forth, to carry out the function.
- the present technology may be presented as including individual functional blocks including functional blocks comprising devices, device components, steps or routines in a method embodied in software, or combinations of hardware and software.
- the computer-readable storage devices, mediums, and memories can include a cable or wireless signal containing a bit stream and the like.
- non-transitory computer-readable storage media expressly exclude media such as energy, carrier signals, electromagnetic waves, and signals per se.
- Such instructions can comprise, for example, instructions and data which cause or otherwise configure a general purpose computer, special purpose computer, or special purpose processing device to perform a certain function or group of functions. Portions of computer resources used can be accessible over a network.
- the computer executable instructions may be, for example, binaries, intermediate format instructions such as assembly language, firmware, or source code. Examples of computer-readable media that may be used to store instructions, information used, and/or information created during methods according to described examples include magnetic or optical disks, flash memory, USB devices provided with non-volatile memory, networked storage devices, and so on.
- Devices implementing methods according to these disclosures can comprise hardware, firmware and/or software, and can take any of a variety of form factors. Typical examples of such form factors include laptops, smart phones, small form factor personal computers, personal digital assistants, rackmount devices, standalone devices, and so on. Functionality described herein also can be embodied in peripherals or add-in cards. Such functionality can also be implemented on a circuit board among different chips or different processes executing in a single device, by way of further example.
- the instructions, media for conveying such instructions, computing resources for executing them, and other structures for supporting such computing resources are means for providing the functions described in these disclosures.
Abstract
The present technology is directed to mapping flow data and overlaying it on a geographic map. Furthermore the geographical map can also display attacks and the flow of an attack from the source to a logical entity. The map additionally can be accompanied with a pie chart relating to the attacks and intensity of attacks. Normal flows can also be displayed on the map along with the attack flows.
Description
- This application claims priority to U.S. Provisional Application No. 62/171,899, entitled “SYSTEM FOR MONITORING AND MANAGING DATACENTERS,” filed Jun. 5, 2015, which is incorporated herein by reference in its entirety.
- The present technology pertains visualization of a network flows, and more specifically to the visualization of attack and normal flows on a dynamic map graphical user interface.
- Datacenters can include a large number of servers and virtual machines. As such datacenters can have a large number of data flows between each server and virtual machine. Monitoring and managing the network of a datacenter can be cumbersome especially with a datacenter with a large number of servers, virtual machines and data flows. Visualizing the network of a datacenter can help network operators manage and monitor the network of a datacenter. One method of visualization that can be helpful is to visualize where data flows are coming from in the world.
- In order to describe the manner in which the above-recited and other advantages and attributes of the disclosure can be obtained, a more particular description of the principles briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only example embodiments of the disclosure and are not therefore to be considered to be limiting of its scope, the principles herein are described and explained with additional specificity and detail through the use of the accompanying drawings in which:
-
FIG. 1 illustrates an example of a network traffic monitoring system in accordance with some embodiments; -
FIG. 2 illustrates an example of a network environment in accordance with some embodiments; -
FIG. 3 illustrates an example of a data pipeline for determining clusters in an application dependency map in accordance with some embodiments; -
FIG. 4A illustrates an example graphical user interface for visualizing attack points on a map in accordance with some embodiments; -
FIG. 4B illustrates an example graphical user interface for visualizing attack flows and normal flows on a map in accordance with some embodiments; -
FIG. 4C illustrates an example graphical user interface including an interactive chart to identify characteristics of flows and to filter flows in accordance with some embodiments; -
FIG. 4D illustrates an example graphical user interface including an information graphic to identify characteristics of flows in accordance with some embodiments; -
FIG. 4E illustrates an example graphical user interface including an interactive graphical user interface control to expand search criteria in accordance with some embodiments; -
FIG. 4F illustrates an example graphical user interface illustrating the results of expanding the search criteria as illustrated inFIG. 4E in accordance with some embodiments; -
FIG. 4G illustrates an example graphical user interface including an information graphic to identify characteristics of flows in accordance with some embodiments; -
FIG. 5 illustrates an example method in accordance with some embodiments; -
FIG. 6 illustrate example interactive 3-D pie chart in accordance with some embodiments; and -
FIG. 7 illustrates an example system embodiment. - The present technology is directed to mapping flow data and overlaying it on a geographic map. Furthermore the geographical map can also display attacks and the flow of an attack from the source to a logical entity. The map additionally can be accompanied with a pie chart relating to the attacks and intensity of attacks. Normal flows can also be displayed on the map along with the attack flows.
- Data can be gathered from an analytics layer including attributes of a data flow. One attribute of the data flow can be the geographic location or positioning of the flow of data traveling from one logical entity to another logical entity. Mapping this data on a geographical map shows visualization of data flowing from one logical entity to another. Furthermore the geographical map can also display attacks and the flow of an attack from the source to a logical entity. Intensity of the attack or counts of an attack can also be shown. The map additionally can be accompanied with a pie chart relating to the attacks. The pie chart can show depth to represent the severity of the attacks. The pie chart can also be organized to show which attacked logical entity is ranked higher in importance.
- Data flows visualized on the geographic map can include attack flows and normal flows. In some embodiments, a radius of attack point can be expanded to display and analyze additional flows.
- Various embodiments of the disclosure are discussed in detail below. While specific implementations are discussed, it should be understood that this is done for illustration purposes only. A person skilled in the relevant art will recognize that other components and configurations may be used without parting from the spirit and scope of the disclosure.
- Referring now to the drawings,
FIG. 1 is an illustration of a networktraffic monitoring system 100 in accordance with an embodiment. The networktraffic monitoring system 100 can include a configuration manager 102,sensors 104, acollector module 106, adata mover module 108, ananalytics engine 110, and apresentation module 112. InFIG. 1 , theanalytics engine 110 is also shown in communication with out-of-band data sources 114, thirdparty data sources 116, and anetwork controller 118. - The configuration manager 102 can be used to provision and maintain the
sensors 104, including installing sensor software or firmware in various nodes of a network, configuring thesensors 104, updating the sensor software or firmware, among other sensor management tasks. For example, thesensors 104 can be implemented as virtual partition images (e.g., virtual machine (VM) images or container images), and the configuration manager 102 can distribute the images to host machines. In general, a virtual partition may be an instance of a VM, container, sandbox, or other isolated software environment. The software environment may include an operating system and application software. For software running within a virtual partition, the virtual partition may appear to be, for example, one of many servers or one of many operating systems executed on a single physical server. The configuration manager 102 can instantiate a new virtual partition or migrate an existing partition to a different physical server. The configuration manager 102 can also be used to configure the new or migrated sensor. - The configuration manager 102 can monitor the health of the
sensors 104. For example, the configuration manager 102 may request for status updates and/or receive heartbeat messages, initiate performance tests, generate health checks, and perform other health monitoring tasks. In some embodiments, the configuration manager 102 can also authenticate thesensors 104. For instance, thesensors 104 can be assigned a unique identifier, such as by using a one-way hash function of a sensor's basic input/out system (BIOS) universally unique identifier (UUID) and a secret key stored by the configuration image manager 102. The UUID can be a large number that may be difficult for a malicious sensor or other device or component to guess. In some embodiments, the configuration manager 102 can keep thesensors 104 up to date by installing the latest versions of sensor software and/or applying patches. The configuration manager 102 can obtain these updates automatically from a local source or the Internet. - The
sensors 104 can reside on various nodes of a network, such as a virtual partition (e.g., VM or container) 120; a hypervisor or shared kernel managing one or more virtual partitions and/orphysical servers 122, an application-specific integrated circuit (ASIC) 124 of a switch, router, gateway, or other networking device, or a packet capture (pcap) 126 appliance (e.g., a standalone packet monitor, a device connected to a network devices monitoring port, a device connected in series along a main trunk of a datacenter, or similar device), or other element of a network. Thesensors 104 can monitor network traffic between nodes, and send network traffic data and corresponding data (e.g., host data, process data, user data, etc.) to thecollectors 108 for storage. For example, thesensors 104 can sniff packets being sent over its hosts' physical or virtual network interface card (NIC), or individual processes can be configured to report network traffic and corresponding data to thesensors 104. Incorporating thesensors 104 on multiple nodes and within multiple partitions of some nodes of the network can provide for robust capture of network traffic and corresponding data from each hop of data transmission. In some embodiments, each node of the network (e.g., VM, container, or othervirtual partition 120, hypervisor, shared kernel, orphysical server 122,ASIC 124,pcap 126, etc.) includes arespective sensor 104. However, it should be understood that various software and hardware configurations can be used to implement thesensor network 104. - As the
sensors 104 capture communications and corresponding data, they may continuously send network traffic data to thecollectors 108. The network traffic data can include metadata relating to a packet, a collection of packets, a flow, a bidirectional flow, a group of flows, a session, or a network communication of another granularity. That is, the network traffic data can generally include any information describing communication on all layers of the Open Systems Interconnection (OSI) model. For example, the network traffic data can include source/destination MAC address, source/destination IP address, protocol, port number, etc. In some embodiments, the network traffic data can also include summaries of network activity or other network statistics such as number of packets, number of bytes, number of flows, bandwidth usage, response time, latency, packet loss, jitter, and other network statistics. - The
sensors 104 can also determine additional data for each session, bidirectional flow, flow, packet, or other more granular or less granular network communication. The additional data can include host and/or endpoint information, virtual partition information, sensor information, process information, user information, tenant information, application information, network topology, application dependency mapping, cluster information, or other information corresponding to each flow. - In some embodiments, the
sensors 104 can perform some preprocessing of the network traffic and corresponding data before sending the data to thecollectors 108. For example, thesensors 104 can remove extraneous or duplicative data or they can create summaries of the data (e.g., latency, number of packets per flow, number of bytes per flow, number of flows, etc.). In some embodiments, thesensors 104 can be configured to only capture certain types of network information and disregard the rest. In some embodiments, thesensors 104 can be configured to capture only a representative sample of packets (e.g., every 1,000th packet or other suitable sample rate) and corresponding data. - Since the
sensors 104 may be located throughout the network, network traffic and corresponding data can be collected from multiple vantage points or multiple perspectives in the network to provide a more comprehensive view of network behavior. The capture of network traffic and corresponding data from multiple perspectives rather than just at a single sensor located in the data path or in communication with a component in the data path, allows the data to be correlated from the various data sources, which may be used as additional data points by theanalytics engine 110. Further, collecting network traffic and corresponding data from multiple points of view ensures more accurate data is captured. For example, a conventional sensor network may be limited to sensors running on external-facing network devices (e.g., routers, switches, network appliances, etc.) such that east-west traffic, including VM-to-VM or container-to-container traffic on a same host, may not be monitored. In addition, packets that are dropped before traversing a network device or packets containing errors may not be accurately monitored by the conventional sensor network. Thesensor network 104 of various embodiments substantially mitigates or eliminates these issues altogether by locating sensors at multiple points of potential failure. Moreover, the networktraffic monitoring system 100 can verify multiple instances of data for a flow (e.g., source endpoint flow data, network device flow data, and endpoint flow data) against one another. - In some embodiments, the network
traffic monitoring system 100 can assess a degree of accuracy of flow data sets from multiple sensors and utilize a flow data set from a single sensor determined to be the most accurate and/or complete. The degree of accuracy can be based on factors such as network topology (e.g., a sensor closer to the source may be more likely to be more accurate than a sensor closer to the destination), a state of a sensor or a node hosting the sensor (e.g., a compromised sensor/node may have less accurate flow data than an uncompromised sensor/node), or flow data volume (e.g., a sensor capturing a greater number of packets for a flow may be more accurate than a sensor capturing a smaller number of packets). - In some embodiments, the network
traffic monitoring system 100 can assemble the most accurate flow data set and corresponding data from multiple sensors. For instance, a first sensor along a data path may capture data for a first packet of a flow but may be missing data for a second packet of the flow while the situation is reversed for a second sensor along the data path. The networktraffic monitoring system 100 can assemble data for the flow from the first packet captured by the first sensor and the second packet captured by the second sensor. - As discussed, the
sensors 104 can send network traffic and corresponding data to thecollectors 106. In some embodiments, each sensor can be assigned to a primary collector and a secondary collector as part of a high availability scheme. If the primary collector fails or communications between the sensor and the primary collector are not otherwise possible, a sensor can send its network traffic and corresponding data to the secondary collector. In other embodiments, thesensors 104 are not assigned specific collectors but the networktraffic monitoring system 100 can determine an optimal collector for receiving the network traffic and corresponding data through a discovery process. In such embodiments, a sensor can change where it sends it network traffic and corresponding data if its environments changes, such as if a default collector fails or if the sensor is migrated to a new location and it would be optimal for the sensor to send its data to a different collector. For example, it may be preferable for the sensor to send its network traffic and corresponding data on a particular path and/or to a particular collector based on latency, shortest path, monetary cost (e.g., using private resources versus a public resources provided by a public cloud provider), error rate, or some combination of these factors. In other embodiments, a sensor can send different types of network traffic and corresponding data to different collectors. For example, the sensor can send first network traffic and corresponding data related to one type of process to one collector and second network traffic and corresponding data related to another type of process to another collector. - The
collectors 106 can be any type of storage medium that can serve as a repository for the network traffic and corresponding data captured by thesensors 104. In some embodiments, data storage for thecollectors 106 is located in an in-memory database, such as dashDB from IBM®, although it should be appreciated that the data storage for thecollectors 106 can be any software and/or hardware capable of providing rapid random access speeds typically used for analytics software. In various embodiments, thecollectors 106 can utilize solid state drives, disk drives, magnetic tape drives, or a combination of the foregoing according to cost, responsiveness, and size requirements. Further, thecollectors 106 can utilize various database structures such as a normalized relational database or a NoSQL database, among others. - In some embodiments, the
collectors 106 may only serve as network storage for the networktraffic monitoring system 100. In such embodiments, the networktraffic monitoring system 100 can include adata mover module 108 for retrieving data from thecollectors 106 and making the data available to network clients, such as the components of theanalytics engine 110. In effect, thedata mover module 108 can serve as a gateway for presenting network-attached storage to the network clients. In other embodiments, thecollectors 106 can perform additional functions, such as organizing, summarizing, and preprocessing data. For example, thecollectors 106 can tabulate how often packets of certain sizes or types are transmitted from different nodes of the network. Thecollectors 106 can also characterize the traffic flows going to and from various nodes. In some embodiments, thecollectors 106 can match packets based on sequence numbers, thus identifying traffic flows and connection links. As it may be inefficient to retain all data indefinitely in certain circumstances, in some embodiments, thecollectors 106 can periodically replace detailed network traffic data with consolidated summaries. In this manner, thecollectors 106 can retain a complete dataset describing one period (e.g., the past minute or other suitable period of time), with a smaller dataset of another period (e.g., the previous 2-10 minutes or other suitable period of time), and progressively consolidate network traffic and corresponding data of other periods of time (e.g., day, week, month, year, etc.). In some embodiments, network traffic and corresponding data for a set of flows identified as normal or routine can be winnowed at an earlier period of time while a more complete data set may be retained for a lengthier period of time for another set of flows identified as anomalous or as an attack. - Computer networks may be exposed to a variety of different attacks that expose vulnerabilities of computer systems in order to compromise their security. Some network traffic may be associated with malicious programs or devices. The
analytics engine 110 may be provided with examples of network states corresponding to an attack and network states corresponding to normal operation. Theanalytics engine 110 can then analyze network traffic and corresponding data to recognize when the network is under attack. In some embodiments, the network may operate within a trusted environment for a period of time so that theanalytics engine 110 can establish a baseline of normal operation. Since malware is constantly evolving and changing, machine learning may be used to dynamically update models for identifying malicious traffic patterns. - In some embodiments, the
analytics engine 110 may be used to identify observations which differ from other examples in a dataset. For example, if a training set of example data with known outlier labels exists, supervised anomaly detection techniques may be used. Supervised anomaly detection techniques utilize data sets that have been labeled as normal and abnormal and train a classifier. In a case in which it is unknown whether examples in the training data are outliers, unsupervised anomaly techniques may be used. Unsupervised anomaly detection techniques may be used to detect anomalies in an unlabeled test data set under the assumption that the majority of instances in the data set are normal by looking for instances that seem to fit to the remainder of the data set. - The
analytics engine 110 can include adata lake 130, an application dependency mapping (ADM)module 140, andelastic processing engines 150. Thedata lake 130 is a large-scale storage repository that provides massive storage for various types of data, enormous processing power, and the ability to handle nearly limitless concurrent tasks or jobs. In some embodiments, thedata lake 130 is implemented using the Hadoop® Distributed File System (HDFS™) from Apache® Software Foundation of Forest Hill, Md. HDFS™ is a highly scalable and distributed file system that can scale to thousands of cluster nodes, millions of files, and petabytes of data. HDFS™ is optimized for batch processing where data locations are exposed to allow computations to take place where the data resides. HDFS™ provides a single namespace for an entire cluster to allow for data coherency in a write-once, read-many access model. That is, clients can only append to existing files in the node. In HDFS™, files are separated into blocks, which are typically 64 MB in size and are replicated in multiple data nodes. Clients access data directly from data nodes. - In some embodiments, the
data mover 108 receives raw network traffic and corresponding data from thecollectors 106 and distributes or pushes the data to thedata lake 130. Thedata lake 130 can also receive and store out-of-band data 114, such as statuses on power levels, network availability, server performance, temperature conditions, cage door positions, and other data from internal sources, andthird party data 116, such as security reports (e.g., provided by Cisco® Systems, Inc. of San Jose, Calif., Arbor Networks® of Burlington, Mass., Symantec® Corp. of Sunnyvale, Calif., Sophos® Group plc of Abingdon, England, Microsoft® Corp. of Seattle, Wash., Verizon® Communications, Inc. of New York, N.Y., among others), geolocation data, IP watch lists, Whois data, configuration management database (CMDB) or configuration management system (CMS) as a service, and other data from external sources. In other embodiments, thedata lake 130 may instead fetch or pull raw traffic and corresponding data from thecollectors 106 and relevant data from the out-of-band data sources 114 and the third party data sources 116. In yet other embodiments, the functionality of thecollectors 106, thedata mover 108, the out-of-band data sources 114, the thirdparty data sources 116, and thedata lake 130 can be combined. Various combinations and configurations are possible as would be known to one of ordinary skill in the art. - Each component of the
data lake 130 can perform certain processing of the raw network traffic data and/or other data (e.g., host data, process data, user data, out-of-band data or third party data) to transform the raw data to a form useable by theelastic processing engines 150. In some embodiments, thedata lake 130 can include repositories for flow attributes 132, host and/or endpoint attributes 134, process attributes 136, and policy attributes 138. In some embodiments, thedata lake 130 can also include repositories for VM or container attributes, application attributes, tenant attributes, network topology, application dependency maps, cluster attributes, etc. - The flow attributes 132 relate to information about flows traversing the network. A flow is generally one or more packets sharing certain attributes that are sent within a network within a specified period of time. The flow attributes 132 can include packet header fields such as a source address (e.g., Internet Protocol (IP) address, Media Access Control (MAC) address, Domain Name System (DNS) name, or other network address), source port, destination address, destination port, protocol type, class of service, among other fields. The source address may correspond to a first endpoint (e.g., network device, physical server, virtual partition, etc.) of the network, and the destination address may correspond to a second endpoint, a multicast group, or a broadcast domain. The flow attributes 132 can also include aggregate packet data such as flow start time, flow end time, number of packets for a flow, number of bytes for a flow, the union of TCP flags for a flow, among other flow data.
- The host and/or endpoint attributes 134 describe host and/or endpoint data for each flow, and can include host and/or endpoint name, network address, operating system, CPU usage, network usage, disk space, ports, logged users, scheduled jobs, open files, and information regarding files and/or directories stored on a host and/or endpoint (e.g., presence, absence, or modifications of log files, configuration files, device special files, or protected electronic information). As discussed, in some embodiments, the host and/or endpoints attributes 134 can also include the out-of-band data 114 regarding hosts such as power level, temperature, and physical location (e.g., room, row, rack, cage door position, etc.) or the
third party data 116 such as whether a host and/or endpoint is on an IP watch list or otherwise associated with a security threat, Whois data, or geocoordinates. In some embodiments, the out-of-band data 114 and thethird party data 116 may be associated by process, user, flow, or other more granular or less granular network element or network communication. - The process attributes 136 relate to process data corresponding to each flow, and can include process name (e.g., bash, httpd, netstat, etc.), ID, parent process ID, path (e.g., /usr2/username/bin/, /usr/local/bin, /usr/bin, etc.), CPU utilization, memory utilization, memory address, scheduling information, nice value, flags, priority, status, start time, terminal type, CPU time taken by the process, the command that started the process, and information regarding a process owner (e.g., user name, ID, user's real name, e-mail address, user's groups, terminal information, login time, expiration date of login, idle time, and information regarding files and/or directories of the user).
- The policy attributes 138 contain information relating to network policies. Policies establish whether a particular flow is allowed or denied by the network as well as a specific route by which a packet traverses the network. Policies can also be used to mark packets so that certain kinds of traffic receive differentiated service when used in combination with queuing techniques such as those based on priority, fairness, weighted fairness, token bucket, random early detection, round robin, among others. The policy attributes 138 can include policy statistics such as a number of times a policy was enforced or a number of times a policy was not enforced. The policy attributes 138 can also include associations with network traffic data. For example, flows found to be non-conformant can be linked or tagged with corresponding policies to assist in the investigation of non-conformance.
- The
analytics engine 110 may include any number ofengines 150, including for example, aflow engine 152 for identifying flows (e.g., flow engine 152) or anattacks engine 154 for identify attacks to the network. In some embodiments, the analytics engine can include a separate distributed denial of service (DDoS)attack engine 155 for specifically detecting DDoS attacks. In other embodiments, a DDoS attack engine may be a component or a sub-engine of a general attacks engine. In some embodiments, theattacks engine 154 and/or theDDoS engine 155 can use machine learning techniques to identify security threats to a network. For example, theattacks engine 154 and/or theDDoS engine 155 can be provided with examples of network states corresponding to an attack and network states corresponding to normal operation. Theattacks engine 154 and/or theDDoS engine 155 can then analyze network traffic data to recognize when the network is under attack. In some embodiments, the network can operate within a trusted environment for a time to establish a baseline for normal network operation for theattacks engine 154 and/or the DDoS. - The
analytics engine 110 may further include asearch engine 156. Thesearch engine 156 may be configured, for example to perform a structured search, an NLP (Natural Language Processing) search, or a visual search. Data may be provided to the engines from one or more processing components. - The
analytics engine 110 can also include apolicy engine 158 that manages network policy, including creating and/or importing policies, monitoring policy conformance and non-conformance, enforcing policy, simulating changes to policy or network elements affecting policy, among other policy-related tasks. - The
ADM module 140 can determine dependencies of applications of the network. That is, particular patterns of traffic may correspond to an application, and the interconnectivity or dependencies of the application can be mapped to generate a graph for the application (i.e., an application dependency mapping). In this context, an application refers to a set of networking components that provides connectivity for a given set of workloads. For example, in a conventional three-tier architecture for a web application, first endpoints of the web tier, second endpoints of the application tier, and third endpoints of the data tier make up the web application. TheADM module 140 can receive input data from various repositories of the data lake 130 (e.g., the flow attributes 132, the host and/or endpoint attributes 134, the process attributes 136, etc.). TheADM module 140 may analyze the input data to determine that there is first traffic flowing between external endpoints on port 80 of the first endpoints corresponding to Hypertext Transfer Protocol (HTTP) requests and responses. The input data may also indicate second traffic between first ports of the first endpoints and second ports of the second endpoints corresponding to application server requests and responses and third traffic flowing between third ports of the second endpoints and fourth ports of the third endpoints corresponding to database requests and responses. TheADM module 140 may define an ADM for the web application as a three-tier application including a first EPG comprising the first endpoints, a second EPG comprising the second endpoints, and a third EPG comprising the third endpoints. - The
presentation module 116 can include an application programming interface (API) or command line interface (CLI) 160, a security information and event management (SIEM)interface 162, and a web front-end 164. As theanalytics engine 110 processes network traffic and corresponding data and generates analytics data, the analytics data may not be in a human-readable form or it may be too voluminous for a user to navigate. Thepresentation module 116 can take the analytics data generated byanalytics engine 110 and further summarize, filter, and organize the analytics data as well as create intuitive presentations for the analytics data. - In some embodiments, the API or
CLI 160 can be implemented using Hadoop® Hive from Apache® for the back end, and Java® Database Connectivity (JDBC) from Oracle® Corporation of Redwood Shores, Calif., as an API layer. Hive is a data warehouse infrastructure that provides data summarization and ad hoc querying. Hive provides a mechanism to query data using a variation of structured query language (SQL) that is called HiveQL. JDBC is an application programming interface (API) for the programming language Java®, which defines how a client may access a database. - In some embodiments, the
SIEM interface 162 can be implemented using Hadoop® Kafka for the back end, and software provided by Splunk®, Inc. of San Francisco, Calif. as the SIEM platform. Kafka is a distributed messaging system that is partitioned and replicated. Kafka uses the concept of topics. Topics are feeds of messages in specific categories. In some embodiments, Kafka can take raw packet captures and telemetry information from thedata mover 108 as input, and output messages to a SIEM platform, such as Splunk®. The Splunk® platform is utilized for searching, monitoring, and analyzing machine-generated data. - In some embodiments, the web front-
end 164 can be implemented using software provided by MongoDB®, Inc. of New York, N.Y. and Hadoop® ElasticSearch from Apache® for the back-end, and Ruby on Rails™ as the web application framework. MongoDB® is a document-oriented NoSQL database based on documents in the form of JavaScript® Object Notation (JSON) with dynamic schemas. ElasticSearch is a scalable and real-time search and analytics engine that provides domain-specific language (DSL) full querying based on JSON. Ruby on Rails™ is model-view-controller (MVC) framework that provides default structures for a database, a web service, and web pages. Ruby on Rails™ relies on web standards such as JSON or extensible markup language (XML) for data transfer, and hypertext markup language (HTML), cascading style sheets, (CSS), and JavaScript® for display and user interfacing. - Although
FIG. 1 illustrates an example configuration of the various components of a network traffic monitoring system, those of skill in the art will understand that the components of the networktraffic monitoring system 100 or any system described herein can be configured in a number of different ways and can include any other type and number of components. For example, thesensors 104, thecollectors 106, thedata mover 108, and thedata lake 130 can belong to one hardware and/or software module or multiple separate modules. Other modules can also be combined into fewer components and/or further divided into more components. -
FIG. 2 illustrates an example of anetwork environment 200 in accordance with an embodiment. In some embodiments, a network traffic monitoring system, such as the networktraffic monitoring system 100 ofFIG. 1 , can be implemented in thenetwork environment 200. It should be understood that, for thenetwork environment 200 and any environment discussed herein, there can be additional or fewer nodes, devices, links, networks, or components in similar or alternative configurations. Embodiments with different numbers and/or types of clients, networks, nodes, cloud components, servers, software components, devices, virtual or physical resources, configurations, topologies, services, appliances, deployments, or network devices are also contemplated herein. Further, thenetwork environment 200 can include any number or type of resources, which can be accessed and utilized by clients or tenants. The illustrations and examples provided herein are for clarity and simplicity. - The
network environment 200 can include anetwork fabric 202, a Layer 2 (L2)network 204, a Layer 3 (L3)network 206, andservers network fabric 202 can include spine switches 210 a, 210 b, 210 c, and 210 d (collectively, “210”) andleaf switches network fabric 202. The leaf switches 212 can include access ports (or non-fabric ports) and fabric ports. The fabric ports can provide uplinks to the spine switches 210, while the access ports can provide connectivity to endpoints (e.g., the servers 208), internal networks (e.g., the L2 network 204), or external networks (e.g., the L3 network 206). - The leaf switches 212 can reside at the edge of the
network fabric 202, and can thus represent the physical network edge. For instance, in some embodiments, the leaf switches 212 d and 212 e operate as border leaf switches in communication withedge devices 214 located in theexternal network 206. The border leaf switches 212 d and 212 e may be used to connect any type of external network device, service (e.g., firewall, deep packet inspector, traffic monitor, load balancer, etc.), or network (e.g., the L3 network 206) to thefabric 202. - Although the
network fabric 202 is illustrated and described herein as an example leaf-spine architecture, one of ordinary skill in the art will readily recognize that various embodiments can be implemented based on any network topology, including any data center or cloud network fabric. Indeed, other architectures, designs, infrastructures, and variations are contemplated herein. For example, the principles disclosed herein are applicable to topologies including three-tier (including core, aggregation, and access levels), fat tree, mesh, bus, hub and spoke, etc. Thus, in some embodiments, the leaf switches 212 can be top-of-rack switches configured according to a top-of-rack architecture. In other embodiments, the leaf switches 212 can be aggregation switches in any particular topology, such as end-of-row or middle-of-row topologies. In some embodiments, the leaf switches 212 can also be implemented using aggregation switches. - Moreover, the topology illustrated in
FIG. 2 and described herein is readily scalable and may accommodate a large number of components, as well as more complicated arrangements and configurations. For example, the network may include any number offabrics 202, which may be geographically dispersed or located in the same geographic area. Thus, network nodes may be used in any suitable network topology, which may include any number of servers, virtual machines or containers, switches, routers, appliances, controllers, gateways, or other nodes interconnected to form a large and complex network. Nodes may be coupled to other nodes or networks through one or more interfaces employing any suitable wired or wireless connection, which provides a viable pathway for electronic communications. - Network communications in the
network fabric 202 can flow through the leaf switches 212. In some embodiments, the leaf switches 212 can provide endpoints (e.g., the servers 208), internal networks (e.g., the L2 network 204), or external networks (e.g., the L3 network 206) access to thenetwork fabric 202, and can connect the leaf switches 212 to each other. In some embodiments, the leaf switches 212 can connect endpoint groups (EPGs) to thenetwork fabric 202, internal networks (e.g., the L2 network 204), and/or any external networks (e.g., the L3 network 206). EPGs are groupings of applications, or application components, and tiers for implementing forwarding and policy logic. EPGs can allow for separation of network policy, security, and forwarding from addressing by using logical application boundaries. EPGs can be used in thenetwork environment 200 for mapping applications in the network. For example, EPGs can comprise a grouping of endpoints in the network indicating connectivity and policy for applications. - As discussed, the servers 208 can connect to the
network fabric 202 via the leaf switches 212. For example, theservers servers network fabric 202 and/or any of the other leaf switches. Theservers L2 network 204. Theservers L2 network 204 make up a local area network (LAN). LANs can connect nodes over dedicated private communications links located in the same general physical location, such as a building or campus. - The
WAN 206 can connect to the leaf switches 212 d or 212 e via theL3 network 206. WANs can connect geographically dispersed nodes over long-distance communications links, such as common carrier telephone lines, optical light paths, synchronous optical networks (SONET), or synchronous digital hierarchy (SDH) links. LANs and WANs can include L2 and/or L3 networks and endpoints. - The Internet is an example of a WAN that connects disparate networks throughout the world, providing global communication between nodes on various networks. The nodes typically communicate over the network by exchanging discrete frames or packets of data according to predefined protocols, such as the Transmission Control Protocol/Internet Protocol (TCP/IP). In this context, a protocol can refer to a set of rules defining how the nodes interact with each other. Computer networks may be further interconnected by an intermediate network node, such as a router, to extend the effective size of each network. The endpoints 208 can include any communication device or component, such as a computer, server, blade, hypervisor, virtual machine, container, process (e.g., running on a virtual machine), switch, router, gateway, host, device, external network, etc.
- In some embodiments, the
network environment 200 also includes a network controller running on thehost 208 a. The network controller is implemented using the Application Policy Infrastructure Controller (APIC™) from Cisco®. The APIC™ provides a centralized point of automation and management, policy programming, application deployment, and health monitoring for thefabric 202. In some embodiments, the APIC™ is operated as a replicated synchronized clustered controller. In other embodiments, other configurations or software-defined networking (SDN) platforms can be utilized for managing thefabric 202. - In some embodiments, a physical server 208 may have instantiated thereon a
hypervisor 216 for creating and running one or more virtual switches (not shown) and one or morevirtual machines 218, as shown for thehost 208 b. In other embodiments, physical servers may run a shared kernel for hosting containers. In yet other embodiments, the physical server 208 can run other software for supporting other virtual partitioning approaches. Networks in accordance with various embodiments may include any number of physical servers hosting any number of virtual machines, containers, or other virtual partitions. Hosts may also comprise blade/physical servers without virtual machines, containers, or other virtual partitions, such as theservers - The
network environment 200 can also integrate a network traffic monitoring system, such as the networktraffic monitoring system 100 shown inFIG. 1 . For example, the network traffic monitoring system ofFIG. 2 includessensors collectors 222, and an analytics engine, such as theanalytics engine 110 ofFIG. 1 , executing on theserver 208 e. Theanalytics engine 208 e can receive and process network traffic data collected by thecollectors 222 and detected by the sensors 220 placed on nodes located throughout thenetwork environment 200. Although theanalytics engine 208 e is shown to be a standalone network appliance inFIG. 2 , it will be appreciated that theanalytics engine 208 e can also be implemented as a virtual partition (e.g., VM or container) that can be distributed onto a host or cluster of hosts, software as a service (SaaS), or other suitable method of distribution. In some embodiments, the sensors 220 run on the leaf switches 212 (e.g., thesensor 220 a), the hosts 208 (e.g., thesensor 220 b), the hypervisor 216 (e.g., thesensor 220 c), and the VMs 218 (e.g., thesensor 220 d). In other embodiments, the sensors 220 can also run on the spine switches 210, virtual switches, service appliances (e.g., firewall, deep packet inspector, traffic monitor, load balancer, etc.) and in between network elements. In some embodiments, sensors 220 can be located at each (or nearly every) network component to capture granular packet statistics and data at each hop of data transmission. In other embodiments, the sensors 220 may not be installed in all components or portions of the network (e.g., shared hosting environment in which customers have exclusive control of some virtual machines). - As shown in
FIG. 2 , a host may include multiple sensors 220 running on the host (e.g., thehost sensor 220 b) and various components of the host (e.g., thehypervisor sensor 220 c and theVM sensor 220 d) so that all (or substantially all) packets traversing thenetwork environment 200 may be monitored. For example, if one of theVMs 218 running on thehost 208 b receives a first packet from theWAN 206, the first packet may pass through theborder leaf switch 212 d, thespine switch 210 b, theleaf switch 212 b, thehost 208 b, thehypervisor 216, and the VM. Since all or nearly all of these components contain a respective sensor, the first packet will likely be identified and reported to one of thecollectors 222. As another example, if a second packet is transmitted from one of theVMs 218 running on thehost 208 b to thehost 208 d, sensors installed along the data path, such as at theVM 218, thehypervisor 216, thehost 208 b, theleaf switch 212 b, and thehost 208 d will likely result in capture of metadata from the second packet. -
FIG. 3 illustrates an example of adata pipeline 300 for determining clusters in an application dependency map in accordance with an example embodiment. In some embodiments, thedata pipeline 300 can be directed by a network traffic monitoring system, such as the networktraffic monitoring system 100 ofFIG. 1 ; an analytics engine, such as theanalytics engine 110 ofFIG. 1 ; an application dependency mapping module, such as theADM module 140 ofFIG. 1 ; or other network service or network appliance. Thedata pipeline 300 includes adata collection stage 302 in which network traffic data and corresponding data (e.g., host data, process data, user data, etc.) are captured by sensors (e.g., thesensors 104 ofFIG. 1 ) located throughout the network. The data may comprise, for example, raw flow data and raw process data. As discussed, the data can be captured from multiple perspectives to provide a comprehensive view of the network. The data collected may also include other types of information, such as tenant information, virtual partition information, out-of-band information, third party information, and other relevant information. In some embodiments, the flow data and associated data can be aggregated and summarized daily or according to another suitable increment of time, and flow vectors, process vectors, host vectors, and other attribute vectors can be calculated during thedata collection stage 302. This can substantially reduce processing during an ADM run. - The
data pipeline 300 also includes an ADMinput data stage 304 in which a network or security administrator or other authorized user may configure an ADM run by selecting the date range of the flow data and associated data to analyze, and those nodes for which the administrator wants application dependency maps and/or cluster information. In some embodiments, the administrator can also input side information, such as server load balance, route tags, and previously identified clusters during the ADMinput data stage 304. In other embodiments, the side information can be automatically pulled or another network element can push the side information for the ADM run. - The next stage of the
data pipeline 300 is pre-processing 306. During thepre-processing stage 306, nodes of the network are partitioned into selected node and dependency node subnets. Selected nodes are those nodes for which the user requests application dependency maps and cluster information. Dependency nodes are those nodes that are not explicitly selected by the users for an ADM run but are nodes that communicate with the selected nodes. To obtain the partitioning information, edges of an application dependency map (i.e., flow data) and unprocessed attribute vectors can be analyzed. - Other tasks can also be performed during the
pre-processing stage 306, including identifying dependencies of the selected nodes and the dependency nodes; replacing the dependency nodes with tags based on the dependency nodes' subnet names; extracting attribute vectors for the selected nodes, such as by aggregating daily vectors across multiple days, calculating term frequency-inverse document frequency (tf-idf), and normalizing the vectors (e.g., l2 normalization); and identifying existing clusters. - In some embodiments, the
pre-processing stage 306 can include early attribute fusion pre-processing. Early fusion is a fusion scheme in which attributes are combined into a single representation. Attributes may be derived from various domains (e.g., network, host, virtual partition, process, user, etc.), and an attribute vector in an early fusion system may represent the concatenation of disparate attribute types or domains. - Early fusion may be effective for attributes that are similar or have a similar structure (e.g., fields of TCP and UDP packets or flows). Such attributes may be characterized as being a same type or being within a same domain. Early fusion may be less effective for distant attributes or attributes of different types or domains (e.g., flow-based attributes versus process-based attributes). Thus, in some embodiments, only attributes in the network domain (i.e., network traffic-based attributes, such as packet header information, number of packets for a flow, number of bytes for a flow, and similar data) may be analyzed. In other embodiments, an ADM run may limit analysis to attributes in the process domain (i.e., process-based attributes, such as process name, parent process, process owner, etc.). In yet other embodiments, attribute sets in other domains (e.g., the host domain, virtual partition domain, user domain, etc.) may be the focus of the ADM run.
- After pre-processing, the
data pipeline 300 may proceed to a clustering stage 308. In the clustering stage 308, various machine learning techniques can be implemented to analyze attribute vectors within a single domain or across different domains to determine the optimal clustering given a set of input nodes. Machine learning is an area of computer science in which the goal is to develop models using example observations (i.e., training data), that can be used to make predictions on new observations. The models or logic are not based on theory but are empirically based or data-driven. - During the clustering stage 308, respective attribute vectors of nodes are evaluated using machine learning to identify an optimal clustering for a selected set of nodes. Supervised or unsupervised learning techniques can be used depending on the availability of training data and other related information (e.g., network topology). For example, an ADM module (or other suitable system) can receive configuration information regarding a network from a configuration management system (CMS), configuration management database (CMDB), or other similar system. In some embodiments, the ADM module can receive the configuration data in a proprietary or open source format utilized by the CMS or CMDB and translate the information to training data observations for the particular machine learning approach(es) implemented by the ADM module. In other embodiments, the CMS or CMDB and the ADM module may be closely integrated and the CMS or CMDB can automatically provide the ADM module with suitable training data. In yet other embodiments, a network administrator or authorized user may receive the configuration data from the CM and the administrator or user can manually label nodes to create the training data.
- In some embodiments network
traffic monitoring system 100 is useful for presenting a visualization of data flows so that a network administrator can better monitor or investigation data flows.Presentation module 112 can present a geographic map representing flows, which can allow an administrator to better understand characteristics of attack flows and normal flows. -
FIGS. 4A, 4B, 4c, 4D, 4E, 4F, and 4G illustrate an example graphical user interface for displaying data flows across geographic regions.FIG. 4A illustratesgraphical user interface 400 includinggeographic map 401. As will be described herein,graphical user interface 400 includes a variety of controls useful for viewing and examining flows that have been identified as likely attacks, as well as viewing and examining normal flows (i.e., flows that have not been identified as likely attacks).Graphical user interface 400 can provide multiple views of attacks, including the illustrated view—anattack map 402. -
Graphical user interface 400 can present a collection of attack points and flows matching search criteria. Search criteria can include a time period for which data flows were received. This time period can be displayed 404 ingraphical user interface 400. In addition to a time period, search criteria can specify regions of data flow origin, applications sending and receiving data flows, subnets, policies, attack type, or other attributes of data flows. - In
FIG. 4A attack points 406 matching a search criteria are displayed. InFIG. 4B , all flows matching search criteria are displayed. Normal flows are illustrated as a dashed line, while attack flows are triangles. Displaying normal flows on the same map as attack flows can provide a useful visualization to identify potential characteristics of attacks. For example most of the normal flows do not originate from identified attack points 406. This can indicate that attack points are entirely malicious and not likely to be responsible for any legitimate traffic. However, as illustrated more clearly inFIG. 4F , sometimes a normal flow can originate from an attack source, and this may suggest that the normal flow should be investigated more closely. -
FIG. 4C illustratespie chart 408 that can be used to investigate and filter flows.Pie chart 408 illustrates a breakdown of the types of attack flows. The area of each slice of the pie chart indicates a relative volume of the attack flows that are of that type.Pie chart 408 is interactive and can receive inputs selecting slices of the pie. A selection of a slice of the pie chart can select that type of attack to be shown onmap 401 while excluding other flows. -
FIG. 4D illustrates aninformation box 410 that can be displayed responsive to an input into the graphical user interfaces. In some embodiments the input includes hovering an input device over a point on themap 401. The input could be a selection of the point or any other input mechanism.Information box 410 indicates where data flows are coming from, going to, and the quantity of attacks in the inbound and outbound data flows. - One potential benefit of the
graphical user interface 400 is the ability to visualize attack flows, and then search for other flows sharing some of the characteristics of the attack flows so that they can be visualized on thesame map 401 as the attack flows. FIG. 5 illustrates an example method of identifying an attack flow and then expanding the search to identify flows that were not identified as attack flows, but share characteristics in common with attack flows.FIG. 4E, and 4F illustrate aspects of the method inFIG. 5 . - As addressed above data flows can be displayed on a geographic map by
presentation module 112 after searching one ormore analytics engines 110 for data flows that match the search criteria. In some embodiments,presentation module 112searches 502 data analyzed by ananalytics engine 110 in response to a received query to visualize data flows.Analytics engine 110 can identify 504 a plurality of data flows matching received search criteria. Andpresentation module 112 can represent the plurality of data flows ongeographic map 401 presented withingraphical user interface 400. - After filtering the flows in
graphical user interface 400 to show the flows of interest,graphical user interface 400 can receive 508 an input to expand a geographic radius of the attack point.FIG. 4E illustratesgraphical user interface 400 receiving this input through an exampleuser interface control 412. Exampleuser interface control 412 can be made to appear through a menu or through a context menu available from a right click on an attack point, or any other interaction known in the art. - In some embodiments, other criteria other than the geographic area can also be expanded. For example, if a search were limited to a particular application, the search could be broadened to identify all flows originating in the expanded geographic area having the same endpoint as one more of the flows identified by the original search. In some embodiments, a search can be refined to identify all flows similar to an identified flow that originated in the expanded search area.
- After receiving the input 508 to expand the geographic radius of attack point,
analytics engine 110 can search 510 for flows from the expanded geographic radius, and display 512 all flows matching the expanded search, as illustrated inFIG. 4F . -
FIG. 4F illustratesgraphical user interface 400 updated to show all flows matching the expanded search area. InFIG. 4F , original attack flows 415 as shown flowing between China and the United States. Additionally, flows 417, which have not been identified as an attack flow, also flow from the same region in China to the same place in the US. It may be that whileflow 417 has not been identified as an attack flow that it might be an attack flow and therefore might be worth additional investigation. - Note that while the
normal flow 417 is illustrated as a west heading flow, and attack flows are indicated as an east heading flow, all flows could be placed side-by-side for easier comparison. -
FIG. 4G illustrates additional statistics relevant to the flows displayed ingraphical user interface 400.Informational display chart 414 represents an average intensity of an attack of a given classification. For example, chart 414 indicates that DDoS attacks number only one-third of the number of NULL Scan attacks, but the DDoS attacks are very intense—registering a 90 on the scale. - An intensity of attack measure can vary depending on the type of attack. A DDoS attack might be measured in terms of amount of data being sent, while a NULL Scan attack might be measured by the number of requests and number of ports being requested.
-
FIG. 6 represents another way to indicate intensity of attack.FIG. 6 illustrates a 3-D pie chart 600, wherein a first pair of dimensions represents the categories of the plurality of data flows and the statistics pertinent to the categories of the plurality of data flows, and the second pair of dimensions represents the categories of data flows and an intensity of the category. This 3-D pie chart can replacepie chart 408 and still include the same functionality as described with respect to the 2-D pie chart. - 3-
D pie chart 600 includes multiple slices. The circumference of the pie chart taken up by the slice can indicate the amount of flows represented by this category. In 3-D pie chart 600,slices slice 602 are relatively less intense that the attacks of the categories represented byslices informational display chart 414,slice 602 could represent the NULL scans that are higher in volume, but less intense, whileslice 606 could represent the DDoS attacks that are lower in volume but more intense. -
FIG. 6 illustrates a conventional system buscomputing system architecture 600 that can be used with any of the system components illustrated inFIG. 1 wherein the components of thesystem 600 are in electrical communication with each other using a bus 605.Exemplary system 600 includes a processing unit (CPU or processor) 610 and a system bus 605 that couples various system components including the system memory 615, such as read only memory (ROM) 670 and random access memory (RAM) 675, to the processor 610. Thesystem 600 can include a cache of high-speed memory connected directly with, in close proximity to, or integrated as part of the processor 610. Thesystem 600 can copy data from the memory 615 and/or the storage device 630 to the cache 612 for quick access by the processor 610. In this way, the cache can provide a performance boost that avoids processor 610 delays while waiting for data. These and other modules can control or be configured to control the processor 610 to perform various actions. Other system memory 615 may be available for use as well. The memory 615 can include multiple different types of memory with different performance characteristics. The processor 610 can include any general purpose processor and a hardware module or software module, such asmodule 1 637,module 2 634, andmodule 3 636 stored in storage device 630, configured to control the processor 610 as well as a special-purpose processor where software instructions are incorporated into the actual processor design. The processor 610 may essentially be a completely self-contained computing system, containing multiple cores or processors, a bus, memory controller, cache, etc. A multi-core processor may be symmetric or asymmetric. - To enable user interaction with the
computing device 600, an input device 645 can represent any number of input mechanisms, such as a microphone for speech, a touch-sensitive screen for gesture or graphical input, keyboard, mouse, motion input, speech and so forth. An output device 635 can also be one or more of a number of output mechanisms known to those of skill in the art. In some instances, multimodal systems can enable a user to provide multiple types of input to communicate with thecomputing device 600. The communications interface 640 can generally govern and manage the user input and system output. There is no restriction on operating on any particular hardware arrangement and therefore the basic attributes here may easily be substituted for improved hardware or firmware arrangements as they are developed. - Storage device 630 is a non-volatile memory and can be a hard disk or other types of computer readable media which can store data that are accessible by a computer, such as magnetic cassettes, flash memory cards, solid state memory devices, digital versatile disks, cartridges, random access memories (RAMs) 675, read only memory (ROM) 680, and hybrids thereof.
- The storage device 630 can include software modules 638, 634, 636 for controlling the processor 610. Other hardware or software modules are contemplated. The storage device 630 can be connected to the system bus 605. In one aspect, a hardware module that performs a particular function can include the software component stored in a computer-readable medium in connection with the necessary hardware components, such as the processor 610, bus 605, display 635, and so forth, to carry out the function.
- For clarity of explanation, in some instances the present technology may be presented as including individual functional blocks including functional blocks comprising devices, device components, steps or routines in a method embodied in software, or combinations of hardware and software.
- In some embodiments the computer-readable storage devices, mediums, and memories can include a cable or wireless signal containing a bit stream and the like. However, when mentioned, non-transitory computer-readable storage media expressly exclude media such as energy, carrier signals, electromagnetic waves, and signals per se.
- Methods according to the above-described examples can be implemented using computer-executable instructions that are stored or otherwise available from computer readable media. Such instructions can comprise, for example, instructions and data which cause or otherwise configure a general purpose computer, special purpose computer, or special purpose processing device to perform a certain function or group of functions. Portions of computer resources used can be accessible over a network. The computer executable instructions may be, for example, binaries, intermediate format instructions such as assembly language, firmware, or source code. Examples of computer-readable media that may be used to store instructions, information used, and/or information created during methods according to described examples include magnetic or optical disks, flash memory, USB devices provided with non-volatile memory, networked storage devices, and so on.
- Devices implementing methods according to these disclosures can comprise hardware, firmware and/or software, and can take any of a variety of form factors. Typical examples of such form factors include laptops, smart phones, small form factor personal computers, personal digital assistants, rackmount devices, standalone devices, and so on. Functionality described herein also can be embodied in peripherals or add-in cards. Such functionality can also be implemented on a circuit board among different chips or different processes executing in a single device, by way of further example.
- The instructions, media for conveying such instructions, computing resources for executing them, and other structures for supporting such computing resources are means for providing the functions described in these disclosures.
- Although a variety of examples and other information was used to explain aspects within the scope of the appended claims, no limitation of the claims should be implied based on particular attributes or arrangements in such examples, as one of ordinary skill would be able to use these examples to derive a wide variety of implementations. Further and although some subject matter may have been described in language specific to examples of structural attributes and/or method steps, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to these described attributes or acts. For example, such functionality can be distributed differently or performed in components other than those identified herein. Rather, the described attributes and steps are disclosed as examples of components of systems and methods within the scope of the appended claims. Moreover, claim language reciting “at least one of” a set indicates that one member of the set or multiple members of the set satisfy the claim.
Claims (20)
1. A system for arranging a graph representing a multi-tier application the system comprising:
a processor; and
a non-transitory computer readable medium storing processor executable instructions, the instructions effective to cause the processor to:
identify a plurality of data flows matching received search criteria;
based on a source and destination data from the plurality of data flows matching the received search criteria, represent the plurality of data flows on a geographic map presented within a graphical user interface, wherein the graphical user interface includes user interface controls effective to adjust the plurality of flows represented in the geographic map.
2. The system of claim 1 , wherein the user interface controls can filter flows that have been labeled as attack flows to only represent attack flows on the geographic map.
3. The system of claim 1 , wherein the instructions are effective to:
present a chart along with the geographic map, the chart presenting categories of the plurality of data flows and statistics pertinent the categories of the plurality of data flows.
4. The system of claim 3 , wherein the chart presenting categories of the plurality of data flows is interactive, and the instructions are effective to:
receive an input in the chart effective to select one or more categories of the plurality of data flows; and
filter the plurality of flows represented on the geographic map to only display data flows of the selected one or more categories.
5. The system of claim 3 , wherein the chart is a three dimensional chart, wherein a first pair of dimensions represents the categories of the plurality of data flows and the statistics pertinent the categories of the plurality of data flows, and the second pair of dimensions represents the categories of data flows and an intensity of the category.
6. The system of claim 1 , wherein the plurality of data flows include data flows that have been labeled as an attack and data flows that have not been labeled as an attack.
7. The system of claim 1 , wherein the user interface controls are configured to expand a radius of a source of the data flows.
8. The system of claim 1 , wherein the user interface controls are configured to broaden the search criteria in at least one aspect.
9. A non-transitory computer readable medium comprising instructions stored thereon, the instructions effective to cause the processor to:
identify a plurality of data flows matching received search criteria;
based on a source and destination data from the plurality of data flows matching the received search criteria, represent the plurality of data flows on a geographic map presented within a graphical user interface, wherein the graphical user interface includes user interface controls effective to adjust the plurality of flows represented in the geographic map.
10. The non-transitory computer readable medium of claim 9 , wherein the user interface controls can filter flows that have been labeled as attack flows to only represent attack flows on the geographic map.
11. The non-transitory computer readable medium of claim 9 , wherein the instructions are effective to:
present a chart along with the geographic map, the chart presenting categories of the plurality of data flows and statistics pertinent the categories of the plurality of data flows.
12. The non-transitory computer readable medium of claim 11 , wherein the chart presenting categories of the plurality of data flows is interactive, and the instructions are effective to:
receive an input in the chart effective to select one or more categories of the plurality of data flows; and
filter the plurality of flows represented on the geographic map to only display data flows of the selected one or more categories.
13. The non-transitory computer readable medium of claim 11 , wherein the chart is a three dimensional chart, wherein a first pair of dimensions represents the categories of the plurality of data flows and the statistics pertinent the categories of the plurality of data flows, and the second pair of dimensions represents the categories of data flows and an intensity of the category.
14. The non-transitory computer readable medium of claim 9 , wherein the plurality of data flows include data flows that have been labeled as an attack and data flows that have not been labeled as an attack.
15. The non-transitory computer readable medium of claim 9 , wherein the user interface controls are configured to expand a radius of a source of the data flows.
16. The non-transitory computer readable medium of claim 9 , wherein the user interface controls are configured to broaden the search criteria in at least one aspect.
17. A method comprising:
searching data analyzed by an analytics engine in response to a received query to visualize data flows;
identifying a plurality of data flows matching the received query criteria;
representing the plurality of data flows on a geographic map presented within a graphical user interface;
receive input to expand geographic radius of attack point.
18. The method of claim 17 , further comprising:
searching for flows from the expanded geographic radius; and
displaying all flows matching expanded search.
19. The method of claim 19 , wherein the all flows include normal flow and attack flows.
20. The method of claim 17 , comprising:
presenting a three dimensional chart, wherein a first pair of dimensions represents the categories of the plurality of data flows and the statistics pertinent the categories of the plurality of data flows, and the second pair of dimensions represents the categories of data flows and an intensity of the category.
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