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Method and system for transmitting data in TRILL (transparent interconnection of lots of links) network

A network and data technology, applied in the field of data transmission methods and systems in multi-link transparent interconnection networks, can solve problems such as data loss, achieve the effect of improving stability and performance, and solving data loss

Active Publication Date: 2013-01-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a data transmission scheme in the TRILL network, to at least solve the problem of data loss caused by the change of the designated forwarder of the end device in the above-mentioned related art

Method used

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  • Method and system for transmitting data in TRILL (transparent interconnection of lots of links) network
  • Method and system for transmitting data in TRILL (transparent interconnection of lots of links) network
  • Method and system for transmitting data in TRILL (transparent interconnection of lots of links) network

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Embodiment 1

[0047] This embodiment provides a method under the TRILL network, when the designated forwarder of a certain VLAN on a link changes, the information and service data learned by the remote device will not be affected. The designated forwarder uses and releases the same new pseudo-node Nickname to realize the rapid switching of data flow after the forwarder changes, ensuring uninterrupted business and improving the stability and reliability of the network.

[0048] During the implementation process, the data transmission method in the TRILL network may include the following steps:

[0049] Step 1, different routing bridges are configured to enable this function or to know each other. For example, joining certain ports to the same group or defaulting to the same link, etc.

[0050] In step 2, a pseudo-node Nickname is generated by one of the routing bridges.

[0051] In step 3, the routing bridge notifies the pseudo-node Nickname to other devices (on the same group or link) (th...

Embodiment 2

[0059] by figure 1 As an example, a data transmission system in a TRILL network provided by this embodiment will be described in detail. According to the TRILL protocol, different hosts and routing bridges can be connected to a link, and the original data frame sent by the host can only be forwarded by a routing bridge on the link. This routing bridge is called the VLAN on this link. Designate forwarders.

[0060] Such as figure 1 As shown, H1, H2, RB1, and RB2 are all connected to the same link, assuming that RB1 is the designated forwarder of the VLAN to which H1 belongs, and H3, H4, RB3, and RB4 are also connected to the same link, assuming that RB3 is the VLAN to which H3 belongs designated forwarder.

[0061] In this embodiment, the processing flow of the routing bridge may include the following steps:

[0062] In step S502, the routing bridge on the link is configured to enable this function.

[0063] Step S504, one of the devices (for example, RB1) generates a pseu...

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Abstract

The invention discloses a method and a system for transmitting data in a TRILL (transparent interconnection of lots of links) network. The method includes the steps: generating a pseudo node Nickname by a routing bridge in a link circuit or a group, and announcing the pseudo node Nickname to other routing bridges in the network; computing the routes from the other routing bridges to a node corresponding to the pseudo node Nickname by the other routing bridges; and processing data frames according to the routes by the routing bridges which receive the data frames in the network. By the method, stability and performance of the system are improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and system in a Transparent Interconnection over Lots of Links (TRILL for short) network. Background technique [0002] TRILL is a connection layer (L2) network standard recommended by the Internet Engineering Task Force (IETF), and is used to solve the deficiency of the Spanning Tree protocol (Spanning Tree protocol, STP for short) in large data centers. In the L2 network, STP avoids loops by blocking redundant links, but at the same time, it also causes waste of redundant link bandwidth (blocked). TRILL solves the L2 loop problem by introducing the IS-IS (Intermediate System to Intermediate System) routing protocol into the L2 network, while retaining the L2 multipath (or Equivalent Cost Multiple Path, ECMP for short). [0003] In a TRILL network, a device running the TRILL protocol is called a routing bridge (RBridge). At the entrance of the TRILL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/703H04L12/721H04L45/28
CPCH04L45/00H04L45/66
Inventor 成明江翟洪军胡方伟
Owner ZTE CORP
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