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Network system and method for supporting a large number of open shortest path first processes

A shortest path first, network system technology, applied in the direction of transmission system, digital transmission system, data exchange network, etc., can solve scalability problems, network scalability, unable to support a large number of OSPF processes, etc., to achieve improved Effects on Scalability and Performance

Active Publication Date: 2016-09-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Applicants have found, however, that the above implementation creates scalability issues where OSPF running on a single processing unit supports a large number of processes
[0007] OSPF in PE routers within a single control plane cannot support a large number of OSPF processes (which may be part of the same VRF or different VRFs), causing scalability issues in the network

Method used

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  • Network system and method for supporting a large number of open shortest path first processes
  • Network system and method for supporting a large number of open shortest path first processes
  • Network system and method for supporting a large number of open shortest path first processes

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Experimental program
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Embodiment 1

[0042] This embodiment of the invention provides a network system for supporting a large number of OSPF processes. image 3 It is a schematic diagram of a network system according to an embodiment of the present invention.

[0043] Such as image 3 As shown, the network system 300 includes: one or more line cards 301, and two or more control boards 302; wherein the line cards 301 are used to receive packets from the outside, and distribute the packets to corresponding OSPF process; the control board 302 is used to receive the packet dispatched by the line card 301 and execute OSPF processing.

[0044] In this embodiment, there will be multiple control boards in the carrier-grade router, and a large number of OSPF processes are distributed to the multiple control boards.

[0045] On PE routers, OSPF is distributed across multiple control planes (control planes) based on the number of OSPF processes. A large number of OSPF processes can be supported, thereby improving scalabi...

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PUM

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Abstract

Embodiments of the present invention provide a network system and a communication method for supporting a large number of OSPF processes. The network system includes: one or more line cards for receiving packets from the outside, and forwarding the packets based on the session table Assigned to the corresponding OSPF process; two or more control boards are used to receive the packet allocated by the line card and perform OSPF processing; wherein a large number of OSPF processes are distributed to multiple control boards. Through the embodiments of the present invention, a large number of OSPF processes can be supported without any scalability problem in the context of PE-CE.

Description

technical field [0001] The present invention relates to the Open Shortest Path First (OSPF) protocol, and more particularly, to a network system and method for supporting a large number of OSPF processes. Background technique [0002] Open Shortest Path First (OSPF) is a link-state routing protocol designed for use as an Interior Gateway Protocol (IGP). This means that it passes routing information between routers belonging to a single Autonomous System (AS). The OSPF protocol is based on link state or SPF shortest path first technology. [0003] OSPF can also be used as an IGP between provider edge routers (PE) and customer edge routers (CE) that are part of a virtual private network (VPN) solution where a single PE router is required to support a large number of VPN routes Forwarding (VRF). [0004] PE routers attached to more than one OSPF domain must run separate instances of OSPF for each domain. If the PE is running OSPF as an IGP, the OSPF instance running as the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/771H04L12/751H04L45/60H04L45/02
Inventor 凯沙瓦克拉维拉介什·谢蒂
Owner HUAWEI TECH CO LTD