CN108718252B - Architecture for realizing content network transmission - Google Patents
Architecture for realizing content network transmission Download PDFInfo
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- CN108718252B CN108718252B CN201810442589.9A CN201810442589A CN108718252B CN 108718252 B CN108718252 B CN 108718252B CN 201810442589 A CN201810442589 A CN 201810442589A CN 108718252 B CN108718252 B CN 108718252B
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- cne
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- 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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- 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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- 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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- 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
- H04L43/0823—Errors, e.g. transmission errors
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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
Abstract
The invention discloses a framework for realizing content network transmission, belonging to the technical field of communication networks. The architecture comprises a CNE (computer network interconnection) deployed at a user side and CNA (Internet service center) devices or software deployed at each ISP (Internet service provider) data center and each Internet backbone, wherein a point-to-multipoint CNC link is formed between the CNE and the CNA devices or software, the CNE monitors the quality of the CNC link through a real-time line between the CNE and the CNA devices or software and dynamically updates a built-in CNT (carbon nanotube) table according to a line quality monitoring result, an overlay network formed by the CNE and a plurality of CNA devices or software transmits service requests of the user side and content data accessed by an ISP operator, and the data transmission with strong real-time performance, large capacity and high availability is realized.
Description
Technical Field
The invention discloses a framework for realizing content network transmission, belonging to the technical field of communication networks.
Background
The basic idea of a Content Delivery Network (CDN) is to avoid bottlenecks and links on the internet that may affect data transmission speed and stability as much as possible, so that Content transmission is faster and more stable. The CDN system can redirect the user request to the service node nearest to the user according to the network flow, the connection of each node, the load condition, the distance to the user, the response time and other comprehensive information in real time, and aims to enable the user to obtain the required content nearby, relieve the crowded condition of the Internet network and improve the response speed of the user for accessing the website.
The existing CDN is a Business model based on B2C (Business 2 Customer), is a network optimization technology for improving application delivery for its subscribers (Customer end) by an ISP provider (Business end), cannot realize data transmission with strong real-time performance, large capacity and high availability, and solves the non-real-time problem at present by deploying a cache.
Disclosure of Invention
The invention aims to provide a framework for realizing content network transmission aiming at the defects of the background technology, realizes high-availability CNC and content network transmission through the cooperation of CNE and CNA, and solves the technical problem that the existing CDN can not realize data transmission with strong real-time performance, large capacity and high availability.
The invention adopts the following technical scheme for realizing the aim of the invention:
an architecture for enabling network delivery of content, comprising: the CNE monitors the quality of the CNC link through a real-time line with the CNA and dynamically updates a built-in CNT table according to a line quality monitoring result, and finally an overlay network formed by the CNE and each CNA transmits a service request of the user side and content data provided by an ISP operator.
As a further optimization scheme for realizing the framework of content network transmission, the CNE monitors the quality of a CNC link in a line detection mode, dynamically updates fault CNA information and a built-in CNT table of the CNE, and refreshes the CNT table in a mode of deleting a fault CNA table entry in the CNT table.
As a further optimization scheme for the architecture for implementing content network transmission, after a CNA fault is detected and fault isolation is implemented, the overlay network implements N +1 (or N:1) redundancy protection by using a point-to-multipoint topological CNE to multiple CNA arrays to transmit a service request from a user side and content data provided by an ISP operator.
As a further optimization scheme for implementing the architecture of content network transmission, the CNE also monitors the traffic of the CNC link in real time and dynamically updates the CNT table according to the monitoring result of the line, and regenerates a new available CNC link between the CNE and the CNA.
As a further optimization scheme for implementing the architecture of content network transmission, the overlay network concurrently transmits a service request of a user side and content data provided by an ISP operator through the MIMO technology.
As a further optimization of the architecture for implementing content network delivery, CNA may filter content prohibited by government agencies against regulatory compliance software or systems required by the government agencies.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) an overlay network is constructed on the basis of the existing internet by deploying CNE and CNA, a CNT table in the CNE is dynamically updated, and a high-availability CNC link of the overlay network is maintained, wherein the essence of the overlay network is based on a C2B (Customer 2 Business) Business model, and a network optimization technology for initiating and improving the quality of a subscriber side (C end) content network is realized by a subscriber (C end), so that the network optimization of a user side service request is realized, a cache is not required to be deployed, the real-time performance, the capacity and the high-availability data transmission are realized, and a feasible scheme is provided for solving the problem of cross-operator interconnection and intercommunication;
(2) the dynamic updating of the CNT table can actively isolate the failed CNC and adjust the weight of each CNC according to the line monitoring result and the load of the network service borne, data transmission is realized by adopting an N +1 (or N:1) redundancy protection mode, the load balance of the service is realized, the content transmission cannot be stopped due to the fault of a certain CNC link, the network redundancy capability is improved, and high availability is realized.
(3) The MIMO technology is adopted to transmit the data of the overlay network concurrently, the underlay network resource is fully excavated, the network capacity of the overlay network is greatly improved, the capacity and FT (Fault Tolerance) of network service customized by a user side can be greatly improved, and the user satisfaction is improved.
Drawings
FIG. 1 is a content network delivery architecture of the present invention.
FIG. 2 is a flow chart of the content network delivery of the present invention.
Detailed Description
The technical scheme of the invention is explained in detail in the following with reference to the attached drawings.
The Network architecture disclosed in the present invention is shown in fig. 1, in which a CNE (Content Network Endpoint, Content Network device or software) is deployed at a user side, and a CNA (Content Network Array, Content Network device or software) is deployed at a data center and an Internet backbone of each ISP (Internet Service Provider). The process processing link and process processing procedure of content network transmission are shown in fig. 2, and the process processing frame covers management plane deployment, control plane coordination method and data plane design of content network transmission. A point-to-multipoint CNC (Content Network Chain) Chain is formed between the CNE and the CNA through a CN (Content Network) control plane technology, where the CNC Chain technology is an overlay Network, the overlay Network is carried on an underlay (existing physical internet Network), and the underlay Network may be a public internet provided by each operator or a private backbone Network. By deploying a large number of CNAs, the process of transmitting data by the content network is shown in fig. 2, which can realize the transmission of large capacity data by MIMO technology, and can also realize N +1 (or N:1) redundancy protection when the CNC chain fails.
The CNA array realizes content network transmission through a large number of CNAs and an encrypted CNC chain, and simultaneously transmits a plurality of paths of content network messages on the same underlay network. The method can fully and effectively utilize the resource of the underlay network and greatly improve the network capacity of the overlay network. This technique of multiplexing simultaneous transmission signals between the CNE and the n CNAs is called MIMO (multiple-input multiple-output). As shown in fig. 1, n CNC chains constitute the data plane for MIMO transmission. Between a plurality of CNC chains, the CNE can realize load sharing of the loaded content network service through a built-in algorithm, and realizes service concurrent transmission by using a point-to-multipoint overlay network of MIMO, thereby greatly improving the overlay transmission capacity of the content network, and also greatly improving the quality and FT (Fault Tolerance) effect of the network service obtained by the CNE user side.
Meanwhile, the CNE continuously monitors and detects the quality, bandwidth and the like of the CNC chain through built-in controller software, the CNE dynamically updates the CNT Table by detecting and dynamically deleting a failed CNT (Content Network Table) Table of the data surface, active isolation measures are taken for the failed CNC chain, a high-availability CNC chain Table is generated through the synergistic action of the CNE and the CNA, the CNE can automatically (automatically by default) or manually set the weight of the CNC link between the CNE and the CNA, the N +1 (or N:1) redundancy protection and load balance of the service are realized, and high availability and FT can be realized.
When the CNA is deployed in different operator networks, the point-to-multipoint overlay network formed by the CNE to the CNA covers multiple ISP operators. For the CNE user side, an innovative service model of multi-operator access is realized, so that the defect of poor user network service caused by the problem of cross-network interconnection and intercommunication is overcome.
Claims (4)
1. An architecture for enabling network delivery of content, comprising: the CNE is deployed on a user side and a plurality of CNAs deployed at each ISP data center and an Internet backbone, point-to-multipoint CNC links are generated between the CNE and the CNAs, the CNE monitors the quality of the CNC links through real-time lines of the CNAs and dynamically updates a built-in CNT table according to line quality monitoring results, and finally an overlay network formed by the CNE and each CNA array transmits service requests of the user side and content data provided by ISP operators; the CNE monitors the quality of a CNC link in a line detection mode, dynamically updates failure CNA information and a built-in CNT table of the CNE, refreshes the CNT table in a mode of deleting a CNT table item corresponding to the failure CNA in the CNT table, and after the CNA failure is detected and the failure isolation is implemented, the overlay network implements N +1 or N:1 redundancy protection through a point-to-multipoint topological CNE-to-CNA array so as to transmit service requests of a user side and content data provided by an ISP operator.
2. The architecture of claim 1, wherein the CNE further monitors the traffic of the CNC links in real time and dynamically updates the CNT table according to the monitoring result of the line, and when a failed CNA is recovered to be available, a new available CNC link array is regenerated between the CNE and the CNA array.
3. The architecture of claim 1, wherein the overlay network concurrently transmits the service request of the user side and the content data provided by the ISP operator through MIMO technology.
4. The architecture for enabling content network delivery according to claim 1, wherein the CNA complies with government mandated regulatory compliance software or systems and filters government regulated content.
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| CN102307210A (en) * | 2011-01-13 | 2012-01-04 | 国云科技股份有限公司 | Data downloading system and data management and downloading method thereof |
| CN103685035A (en) * | 2012-09-26 | 2014-03-26 | 深圳市腾讯计算机系统有限公司 | Routing update method, switch and system |
| CN107547545A (en) * | 2017-09-05 | 2018-01-05 | 北京原力创新科技有限公司 | Video cloud platform system, video request processing method and storage medium, processor |
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| US20180091631A1 (en) * | 2017-08-02 | 2018-03-29 | Akamai Technologies, Inc. | Systems and methods for writing prioritized http/2 data to a socket buffer |
| CN107454207A (en) * | 2017-08-14 | 2017-12-08 | 郑州云海信息技术有限公司 | A kind of method and Docker clusters of configuration Overlay web container external IPs |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110718A (en) * | 2007-08-22 | 2008-01-23 | 中兴通讯股份有限公司 | Self-adapting chain circuit detecting method and device thereof |
| CN102307210A (en) * | 2011-01-13 | 2012-01-04 | 国云科技股份有限公司 | Data downloading system and data management and downloading method thereof |
| CN103685035A (en) * | 2012-09-26 | 2014-03-26 | 深圳市腾讯计算机系统有限公司 | Routing update method, switch and system |
| CN107547545A (en) * | 2017-09-05 | 2018-01-05 | 北京原力创新科技有限公司 | Video cloud platform system, video request processing method and storage medium, processor |
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