CN108418765A - Remote flow monitors the chip implementing method and device of load balancing - Google Patents
Remote flow monitors the chip implementing method and device of load balancing Download PDFInfo
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- CN108418765A CN108418765A CN201810306085.4A CN201810306085A CN108418765A CN 108418765 A CN108418765 A CN 108418765A CN 201810306085 A CN201810306085 A CN 201810306085A CN 108418765 A CN108418765 A CN 108418765A
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- message
- load balancing
- monitoring
- vxlan
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Power Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses chip implementing methods and device that a kind of remote flow monitors load balancing, are applied to NPB equipment, and this method includes：After NPB equipment receives the monitoring message of remote exchange transmission, outer layer message header parsing is carried out to the monitoring message；When four layers of head of the outer layer heading are ERSPAN, to monitoring message progress internal layer message header parsing, judge whether the monitoring message is VxLAN messages, if so, the progress load balancing calculating of the data based on data IP；If it is not, then the data based on internal layer IP carry out load balancing calculating；ECMP egress selections are carried out according to load balancing result of calculation, the monitoring message is sent to corresponding network analysis server.The chip implementing method and device of load balancing are monitored using remote flow disclosed by the invention, effectively ERSPAN monitoring messages can be handled, ensure same session is sent to consolidated network Analysis server, in favor of preferably carrying out the monitoring of network flow.
Description
Technical field
The method that the present invention relates to a kind of to be forwarded to remotely monitoring message, more particularly to it is a kind of to be applied to NPB equipment
Remote flow monitoring load balancing chip implementing method and device, belong to network communication technology field.
Background technology
In data center, VxLAN (Virtual Extensible LAN) on-premise network is commonly used, therebetween
NPB (NetworkPacket Brokers, network packet transfer) equipment for monitoring network usually will receive remote switch
The monitoring message for the message format as shown in Figure 1 that machine is sent, message content include outer layer Mac heads, outer layer IP heads, this two reports
Literary head is used to the monitoring message being sent to corresponding NPB equipment；It is followed by ERSPAN (encapsulation remote port mirror image) head, the report
Literary head shows that this message is monitoring message；Be followed by forwarded in data center VxLAN encapsulation message, including internal layer MAC header,
Internal layer IP, internal layer VxLAN heads, and internal data MAC header, data IP and data Payload.
NPB equipment needs the message by above-mentioned message format to be sent to corresponding Analysis server progress message analysis.With
May have multiple in the Analysis server of analysis message, the data flow in network is all two-way, in order to preferably carry out network
Data analysis, it is expected that the data flow of same session can be sent to the same network analysis server.
Invention content
In view of the deficiencies of the prior art, it is a primary object of the present invention to：For the ERSPAN reports received to NPB equipment
Text further does analyzing processing, is distributed to specific network analysis server, to reach preferably network data analysis effect, carries
Go out a kind of chip implementing method and device of remote flow monitoring load balancing.
To realize foregoing purpose, the invention discloses the chip implementing methods that a kind of remote flow monitors load balancing, answer
For NPB equipment, this method specifically includes：
After the NPB equipment receives the monitoring message of remote exchange transmission, outer layer message is carried out to the monitoring message
Header parsing；
When four layers of head of the outer layer heading are ERSPAN, internal layer heading solution is carried out to the monitoring message
Analysis, judges whether the monitoring message is VxLAN messages, if so, the progress load balancing calculating of the data based on data IP；
If it is not, then the data based on internal layer IP carry out load balancing calculating；
ECMP egress selections are carried out according to load balancing result of calculation, the monitoring message is sent to corresponding network point
Analyse server.
Preferably, the method further includes：When four layers of head of outer layer heading are ERSPAN, selected according to user configuration
It selects and whether divests the ERSPAN heads.
Preferably, described to judge whether the monitoring message is that VxLAN messages include：
Judge internal layer message udp port whether the port for being VxLAN, if so, indicate current message be VxLAN encapsulation
Message；If it is not, indicating that current message is not the message of VxLAN encapsulation.
Preferably, the data based on data IP carry out load balancing calculating and include：According to IP IPDA of data
Dialogue-based symmetrical Hash is carried out with IPSA to calculate.
Preferably, the data based on internal layer IP carry out load balancing calculating and include：According to IP IPDA of internal layer
Dialogue-based symmetrical Hash is carried out with IPSA to calculate.
Preferably, it further includes the destination slogan and source port number ginseng for using four layers of TCP/UDP that the symmetrical Hash, which is calculated,
With calculating.
Correspondingly, the invention also provides a kind of remote flows to monitor the chip realization device of load balancing, is applied to NPB
Equipment, described device include：
Message receiving module, the monitoring message for receiving remote exchange transmission；
Packet parsing module, the monitoring message for being received to message receiving module parse, including to the monitoring
Message carries out outer layer message header parsing；Further include to the monitoring when four layers of head of the outer layer heading are ERSPAN
Message carries out internal layer message header parsing；
Load balancing computing module, for carrying out load balancing calculating；
Packet forwarding module carries out ECMP egress selections according to load balancing result of calculation, the monitoring message is sent
To corresponding network analysis server.
Preferably, when four layers of head of the outer layer heading are ERSPAN, packet parsing module is according to user configuration
It chooses whether to divest the ERSPAN heads.
Preferably, the packet parsing module further includes VxLAN messages identification submodule；
VxLAN messages identification submodule be used to judge internal layer message udp port whether the port for being VxLAN, if
It is to indicate that current message is the message of VxLAN encapsulation, the packet parsing module solves the data message inside VxLAN
Analysis；If it is not, indicating that current message is not the message of VxLAN encapsulation, the packet parsing module parses internal layer message.
Preferably, when current message is the message of VxLAN encapsulation, load balancing computing module is according to the IPDA of data IP
Dialogue-based symmetrical Hash is carried out with IPSA to calculate；
Preferably, when current message is not the message of VxLAN encapsulation, load balancing computing module is according to internal layer IP
IPDA and IPSA carries out dialogue-based symmetrical Hash and calculates.
Compared with the prior art, the advantages of the present invention are as follows：A kind of remote flow disclosed by the invention monitors load balancing
Chip implementing method and device, can effectively to ERSPAN monitoring message handle, by based on IPDA's and IPSA
Symmetrical Hash is calculated, and ensures that same session is sent to consolidated network Analysis server, in favor of preferably carrying out network flow
Monitoring.
Description of the drawings
Fig. 1 is long-range monitoring message format schematic diagram；
Fig. 2 is that the NPB equipment that an exemplary embodiments of the invention propose carries out load balancing calculating and ECMP to monitoring message
The process chart of egress selection；
Fig. 3 is that the chip realization device structure for the remote flow monitoring load balancing that an exemplary embodiments of the invention propose is shown
It is intended to.
Specific implementation mode
In view of deficiency in the prior art, inventor is able to propose the present invention's through studying for a long period of time and largely putting into practice
Technical solution.The technical solution, its implementation process and principle etc. will be further explained as follows.
The invention discloses the chip implementing methods that a kind of remote flow monitors load balancing, are applied to NPB equipment, the party
Method specifically includes：
After NPB equipment receives the monitoring message of remote exchange transmission, outer layer heading solution is carried out to the monitoring message
Analysis；
When four layers of head of the outer layer heading are ERSPAN, internal layer heading solution is carried out to the monitoring message
Analysis, judges whether the monitoring message is VxLAN messages, if so, the progress load balancing calculating of the data based on data IP；
If it is not, then the data based on internal layer IP carry out load balancing calculating；
ECMP egress selections are carried out according to load balancing result of calculation, the monitoring message is sent to corresponding network point
Analyse server.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Fig. 2 is that the NPB equipment that an exemplary embodiments of the invention propose carries out load balancing calculating and ECMP to monitoring message
The process chart of egress selection, as shown in Fig. 2, after NPB equipment receives the monitoring message that remote exchange sends over, place
Reason process is as follows：
Step 201, outer layer header parsing is carried out to message；
Step 202, judge whether tetra- layers of heads of outer layer heading Layer4 are ERSPAN heads, if so, step 204 is executed, it is no
Then follow the steps 203；
Step 203, according to the configuration requirement of current NPB equipment, non-ERSPAN messages are handled, including is forwarded
Or the processing such as message recognition detection.
The functional requirement of current NPB equipment is depended on for the processing of non-ERSPAN messages and whether undertakes a part of forwarding
Function, if desired forwarding capability, then carry out normal two layers or three layers forwarding according to message format according to device configuration；If should
NPB equipment also has the process demand of the detection messages for other special formats, then carries out corresponding message identification to current message
And processing.Technical solution of the present invention is illustrated mainly for the application processing of the detection messages of ERSPAN formats, for non-
Processing those skilled in the art of ERSPAN messages do corresponding processing according to practical situations.
Step 204, it is configured according to user demand, decides whether to divest the ERSPAN heads；
Step 205, the parsing of internal layer heading is carried out；
Step 206, judge internal layer message udp port whether the port for being VxLAN, if so, execute step 207, otherwise
Execute step 209；
Step 207, the data message inside VxLAN is parsed；
Step 208, data IPDA and IPSA are obtained and carries out dialogue-based symmetrical Hash calculating, then executes step 210；
Step 209, internal layer IPDA and IPSA are obtained and carries out dialogue-based symmetrical Hash calculating；
Step 210, according to Hash result of calculations, the selection of the outlets ECMP is carried out；
Step 211, which is sent to corresponding network analysis server.
According to the UDP port number of internal layer message judge current message whether be VxLAN encapsulation message, if so, right
Data message inside VxLAN, i.e., original two layer message, is parsed, and the IPDA and IPSA obtained in data IP carries out base
It is calculated in the symmetrical Hash of session；Otherwise, it takes IPDA and IPSA in internal layer IP to carry out dialogue-based symmetrical Hash to calculate.
Wherein, symmetrical Hash computational methods include：To IPDA/IPSA with data " (the IPDA XOR of exclusive or twice
IPSA), link together total 64bit data of (~IPDA) XOR (~IPSA) " carry out Hash polynomial computations, to obtain
Hash value.Also it can increase by the destination slogan of four layers of TCP/UDP and source port number participates in calculating, principle is identical.Using symmetrical
The purpose that Hash carries out load balancing calculating is, for a pair of of destination address/source address, no matter the Hash that position is calculated
Value wants identical, just can guarantee that same session obtains identical hash value in this way.To when carrying out egress selection, ensure with for a moment
Words are sent to consolidated network Analysis server.
Correspondingly, it the embodiment of the invention also discloses the chip realization device that a kind of remote flow monitors load balancing, answers
For NPB equipment, structure is as shown in figure 3, described device includes：
Message receiving module 301, the monitoring message for receiving remote exchange transmission；
Packet parsing module 302, the monitoring message for being received to message receiving module parse, including to the prison
It observes and predicts text and carries out outer layer message header parsing；Further include to the prison when four layers of head of the outer layer heading are ERSPAN
It observes and predicts text and carries out internal layer message header parsing；
Load balancing computing module 303 carries out load balancing calculating for the IP data based on internal layer message；
Packet forwarding module 304 carries out ECMP egress selections according to load balancing result of calculation, the monitoring message is sent out
It send to corresponding network analysis server.
When four layers of head of the outer layer heading are ERSPAN, packet parsing module chooses whether according to user configuration
Divest the ERSPAN heads.
Further, packet parsing module further includes VxLAN messages identification submodule 3021, for judging internal layer message
Udp port whether the port for being VxLAN, if so, indicate current message be VxLAN encapsulation message, the packet parsing module
Data message inside VxLAN is parsed, load balancing computing module carries out base according to the IPDA and IPSA of data IP
It is calculated in the symmetrical Hash of session；If it is not, indicating that current message is not the message of VxLAN encapsulation, the packet parsing module pair
Internal layer message is parsed, and load balancing computing module carries out dialogue-based symmetrical according to the IPDA and IPSA of internal layer IP
Hash is calculated.
It, can be effective using a kind of chip implementing method and device of remote flow monitoring load balancing disclosed by the invention
ERSPAN mirror images monitoring message is handled, symmetrical Hash meters are carried out by IPDA based on internal data message and IPSA
It calculates, ensures that same session is sent to consolidated network Analysis server, in favor of preferably carrying out the monitoring of network flow, and reach
Preferably network data analysis effect.
It should be appreciated that the technical concepts and features of above-described embodiment only to illustrate the invention, its object is to allow be familiar with this
The personage of item technology cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
According to equivalent change or modification made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of chip implementing method of remote flow monitoring load balancing, is applied to NPB equipment, it is characterised in that：
After the NPB equipment receives the monitoring message of remote exchange transmission, outer layer heading solution is carried out to the monitoring message
Analysis；
When four layers of head of the outer layer heading are ERSPAN, internal layer message header parsing is carried out to the monitoring message, is sentenced
Whether the monitoring message that breaks is VxLAN messages, if so, the progress load balancing calculating of the data based on data IP；If it is not,
Then the data based on internal layer IP carry out load balancing calculating；
ECMP egress selections are carried out according to load balancing result of calculation, the monitoring message, which is sent to corresponding network analysis, to be taken
Business device.
2. the chip implementing method of remote flow monitoring load balancing according to claim 1, which is characterized in that the side
Method further includes：
When four layers of head of outer layer heading are ERSPAN, chosen whether to divest the ERSPAN heads according to user configuration.
3. the chip implementing method of remote flow monitoring load balancing according to claim 1, which is characterized in that described to sentence
Whether the monitoring message that breaks is that VxLAN messages include：
Judge internal layer message udp port whether the port for being VxLAN, if so, indicate current message be VxLAN encapsulation report
Text；If it is not, indicating that current message is not the message of VxLAN encapsulation.
4. the chip implementing method of remote flow monitoring load balancing according to claim 1, which is characterized in that the base
Carrying out load balancing calculating in IP data of data includes：Dialogue-based pair is carried out according to IP IPDA and IPSA of data
Hash is claimed to calculate.
5. the chip implementing method of remote flow monitoring load balancing according to claim 1, which is characterized in that the base
Carrying out load balancing calculating in IP data of internal layer includes：Dialogue-based pair is carried out according to IP IPDA and IPSA of internal layer
Hash is claimed to calculate.
6. the chip implementing method of any remote flow monitoring load balancing, feature exist according to claim 4 or 5
In：It further includes participating in calculating using the destination slogan and source port number of four layers of TCP/UDP that the symmetrical Hash, which is calculated,.
7. a kind of chip realization device of remote flow monitoring load balancing, is applied to NPB equipment, which is characterized in that the dress
Set including：
Message receiving module, the monitoring message for receiving remote exchange transmission；
Packet parsing module, the monitoring message for being received to message receiving module parse, including to the monitoring message
Carry out outer layer message header parsing；Further include to the monitoring message when four layers of head of the outer layer heading are ERSPAN
Carry out internal layer message header parsing；
Load balancing computing module, for carrying out load balancing calculating；
Packet forwarding module carries out ECMP egress selections according to load balancing result of calculation, the monitoring message is sent to phase
The network analysis server answered.
8. the chip realization device of remote flow monitoring load balancing according to claim 7, it is characterised in that：When described
When four layers of head of outer layer heading are ERSPAN, packet parsing module chooses whether to divest the ERSPAN according to user configuration
Head.
9. the chip realization device of remote flow monitoring load balancing according to claim 7, it is characterised in that：The report
Literary parsing module further includes VxLAN messages identification submodule；
VxLAN messages identification submodule be used to judge internal layer message udp port whether the port for being VxLAN, if so, table
Show that current message is the message of VxLAN encapsulation, the packet parsing module parses the data message inside VxLAN；If
It is no, indicate that current message is not the message of VxLAN encapsulation, the packet parsing module parses internal layer message.
10. the chip realization device of remote flow monitoring load balancing according to claim 9, it is characterised in that：
When current message is the message of VxLAN encapsulation, load balancing computing module is according to IPDA and the IPSA progress of data IP
Dialogue-based symmetrical Hash is calculated；
When current message is not the message of VxLAN encapsulation, load balancing computing module according to the IPDA and IPSA of internal layer IP into
The dialogue-based symmetrical Hash of row is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306085.4A CN108418765B (en) | 2018-04-08 | 2018-04-08 | Chip implementation method and device for remote traffic monitoring load sharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306085.4A CN108418765B (en) | 2018-04-08 | 2018-04-08 | Chip implementation method and device for remote traffic monitoring load sharing |
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| CN108418765B CN108418765B (en) | 2021-09-17 |
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Cited By (4)
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| CN110545213A (en) * | 2019-08-12 | 2019-12-06 | 安徽云探索网络科技有限公司 | Computer network data flow monitoring system and method |
| CN111478862A (en) * | 2020-03-09 | 2020-07-31 | 邦彦技术股份有限公司 | Remote data mirroring system and method |
| WO2022001287A1 (en) * | 2020-07-03 | 2022-01-06 | 华为技术有限公司 | Message processing method and device |
| WO2023093726A1 (en) * | 2021-11-26 | 2023-06-01 | 苏州盛科通信股份有限公司 | Method and system for flexibly generating hash value for network load balancing application, and storage medium and electronic device |
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