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A designated routing bridge election method, device and system

A routing bridge and device technology, applied in the communication field, can solve the problems of long time required, long Vlan traffic interruption time, long time of MSTP network stability, etc., to reduce traffic interruption time and realize the effect of fast election

Active Publication Date: 2017-11-10
NEW H3C TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, in the prior art, when two local MSTP networks are merged, when two RBs connected to the two MSTP networks perform DRB election, it is necessary to wait for the local MSTP network to stabilize before performing TRILL DRB election and AVF designation. However, the MSTP network is usually stable for a long time, which makes the time required for AVF designation too long, resulting in a long interruption of Vlan traffic and affecting Vlan traffic.
Moreover, because the TRILL network relies too much on the MSTP network, even if the MSTP network is stable, since the DRB in TRILL has not yet been elected and the AVF has not been designated, local traffic cannot be sent and received normally due to AVF suppression

Method used

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  • A designated routing bridge election method, device and system
  • A designated routing bridge election method, device and system
  • A designated routing bridge election method, device and system

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Embodiment 1

[0035] see Figure 4 , Figure 4 It is a schematic flow chart of the DRB election method in Embodiment 1 of the present invention. The specific steps are:

[0036] Step 401, when the edge port of the RB has AVF suppression, send a message for DRB election through the edge port, so that the MSTP device in the MSTP local network that receives the message floods the message in the CIST.

[0037] The RB is the RB connected to the merged MSTP network in the TRILL network. The edge ports of the RB connected to other MSTP networks are designated as the AVF of the same Vlan. The port connecting the RB to the MSTP local network is the edge port. .

[0038] Among them, in the MSTP network, the spanning tree includes the Internal Spanning Tree (Internal Spanning Tree, IST) and the Common Spanning Tree (Common Spanning Tree, CST). When flooding, it will flood in CST and IST, also known as Common and Internal Spanning Tree (CIST).

[0039] still with image 3 For example, port 1 on R...

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Abstract

The invention discloses a designated routing bridge election method. The method includes: sending and receiving messages for DRB election by means of flooding in the spanning tree of the STP device when there is AVF suppression on the edge port of the RB . Based on the same inventive idea, the present invention also proposes a device and a system, so that during the merger of STP networks, the fast election of DRB can be realized, and then the AVF designation can be realized, and the traffic interruption time caused by the AVF suppression of the RB edge port can be reduced.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a Designated Routing Bridge (DRB) election method, device and system. Background technique [0002] Multi-link transparent interconnection (Transparent Interconnection of Lots of Links, TRILL) is to implement link state-based autonomous system internal routing protocol. TRILL is a new spanning tree replacement protocol. By introducing the three-layer routing technology into the two-layer network, it solves the waste of link bandwidth, bottleneck links, non-optimal path forwarding, and unsupported Spanning Tree Protocol (Spanning Tree Protocol, STP) protocol. Due to the shortcomings of link load balancing, temporary loop broadcast storms, and a large number of media access control (MAC) entries on aggregation devices, TRILL network technology is the future technology development trend. [0003] The device running TRILL is called routing bridge (Routing Bridge, RB)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/751H04L45/74H04L45/02
CPCH04L12/462H04L12/4625H04L45/48H04L45/484H04L12/4641H04L45/026H04L69/324
Inventor 王岳宁
Owner NEW H3C TECH CO LTD
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