A routing switching method and device

A routing and equipment technology, applied in the field of communication, can solve problems such as large resource consumption, slow convergence speed, and network stability impact.

Active Publication Date: 2019-04-09
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of base stations connected to device A is large, device B needs to delete each ARP and each related direct route to achieve convergence. Not only the convergence speed is slow, but also the cost of deleting ARP and direct routes on device B A large number of resources make the device in a high load state when the link transmission fails, which has a great impact on the stability of the network

Method used

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  • A routing switching method and device
  • A routing switching method and device
  • A routing switching method and device

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Embodiment Construction

[0037] In view of the problems in the background technology, the present invention proposes corresponding routing switching methods for the gateway device and the CE device in the IPRAN network, so as to increase the switching speed of the routing when a link fails, thereby accelerating traffic convergence and improving network security. stability.

[0038]Since the IPRAN network includes a gateway device connected to the base station and a gateway device connected to the CE device, it should be noted here that the first gateway device and the second gateway device in this application both have the ability to connect to other devices and execute the network The functions of related operations, for the convenience of explanation and distinction, the gateway device connected to the CE device will be called the first gateway device, and the gateway device connected to the first gateway device and the base station will be called the second gateway device at the same time. On the p...

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Abstract

The invention discloses a route switching method. The route switching method comprises the steps of: carrying out BFD on a session state corresponding to a PW between first gateway equipment and second gateway equipment in an IPRAN network; updating the session state in a gateway side state table when the session state changes; and determining the target group attributes corresponding to a target session state according to the updated gateway side state table since PW attributes, the session state and group attributes of the PW are stored in the gateway side state table, and sending a state notification message carrying target group attributes to CE equipment, so that the CE equipment can filter VPN routes with updated session state being DOWN according to the target group attributes. Therefore, the routes can be quickly switched when link failure occurs, the traffic convergence rate is accelerated, and stability of the network is ensured. The invention further discloses route switching equipment and the CE equipment.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a route switching method. The present invention also relates to a gateway device and a CE device. Background technique [0002] IPRAN (Internet Protocol Radio Access Network, IP-based wireless access network) IPRAN is a router / switch overall solution optimized and customized for IP (Internet Protocol, network protocol) base station backhaul application scenarios. Advancing, IPRAN is becoming more and more important for mobile networks. exist figure 1 In the shown schematic diagram of an IPRAN network in the prior art, a large number of base stations are connected to equipment A (including A1, A2, and A3). Open L2VPN (Virtual Private Network, virtual private network) between each A device and B1 and B2 devices respectively, establish a primary and backup PW (Pseudo wire, pseudowire) and perform backup (for ease of description, follow-up with B1 and A1 The link between B...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04W24/04H04W40/36
CPCH04W24/04H04W40/36
Inventor武伟
OwnerNEW H3C TECH CO LTD