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LSP (Layered Service Provider) information flooding method and equipment in SPBM (Shortest Path Bridging MAC)

A technology of information flooding and equipment, applied in the field of network communication, can solve problems such as long time consumption and slow flooding speed, and achieve the effects of increasing speed, shortening time spent, and improving convergence performance

Active Publication Date: 2013-01-16
紫光恒越技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0037] This application provides a method and equipment for flooding LSP information in SPBM to solve the problems in the prior art that the flooding process consumes a long time and the flooding speed is relatively slow

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  • LSP (Layered Service Provider) information flooding method and equipment in SPBM (Shortest Path Bridging MAC)

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Embodiment Construction

[0051] In order to solve the problems in the prior art that the flooding process consumes a long time and the flooding speed is relatively slow, the following embodiments of the present application provide a method for flooding LSP information in SPBM and a backbone to which this method can be applied A network bridge device, the backbone network bridge device may be a BEB device or a BCB device.

[0052] Because in the existing technology, each backbone network bridge device (BEB device or BCB device) will generate LSP information and flood it to the entire backbone network, and then, after the network topology is stable, calculate the unicast SPT with itself as the root node , generating a corresponding unicast FDB entry and sending it to the unicast FDB table of the data plane. For details, refer to the background technology section, which will not be repeated here. In this way, the data plane in each backbone network bridge device maintains a unicast FDB table, which store...

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Abstract

The invention discloses an LSP (Layered Service Provider) information flooding method and equipment in an SPBM (Shortest Path Bridging MAC). A data plane of each backbone network bridging equipment in the SPBM network is maintained by a unicast FDB (Forwarding Database) table. The method comprises the following steps of: generating new LSP information according to the variation of network topology after the variation of the network topology is detected; and using B-MAC (Multiplexed Analogue Components) addresses and corresponding B-VLANs (Virtual Local Area Network) of all the other backbone network bridging equipment locally saved to create an IS-IS (Intermediate System to Intermediate System) LSP message with the new LSP information and sending out the IS-IS LSP message by a transceiving port corresponding to the B-MAC address in the unicast FDB table, wherein the B-MAC address in the IS-IS LSP message refers to the B-MAC address of the other backbone network bridging equipment, and a B-VLAN tag is filled with the B-VLAN corresponding to the B-MAC address of the other backbone network bridging equipment. According to the invention, the flooding speed is raised, time spent in the flooding process is shortened, and the convergence performance of the SPBM network is improved.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a method and equipment for flooding LSP information in SPBM. Background technique [0002] SPB (Shortest Path Bridging, the shortest path bridge) is an Ethernet standard defined by IEEE802.1aq, which is a further extension of MSTP (Multiple Spanning Tree Protocol, Multiple Spanning Tree Protocol), aiming to build a large flat non-blocking Layer 2 network . SPB uses SPB-IS-IS (Intermediate System to Intermediate System, intermediate system to intermediate system) to share the link state in the network, and each node in the network calculates the shortest path between each node in parallel, avoiding the use of STP (Spanning Tree Protocol (Spanning Tree Protocol) protocol brings instability and inefficient utilization of some links. [0003] IEEE802.1aq defines two SPB modes: VLAN mode (SPBV (Shortest Path Bridging VLAN Mode, the shortest path bridge in VLA...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721
Inventor 施鸿殊
Owner 紫光恒越技术有限公司
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