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Method and system for interconnecting domains of transparent interconnection over lots of links network

A multi-link and network technology, applied in the field of network communication, to achieve the effects of easy expansion, network security, and increased forwarding burden

Active Publication Date: 2012-09-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, OTV technology is insufficient in the interconnection scale of DC

Method used

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  • Method and system for interconnecting domains of transparent interconnection over lots of links network
  • Method and system for interconnecting domains of transparent interconnection over lots of links network
  • Method and system for interconnecting domains of transparent interconnection over lots of links network

Examples

Experimental program
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Effect test

Embodiment 1

[0086] In this example, if Figure 6 As shown, in order to facilitate management and reduce the number of control plane messages, the TRILL network in a large DC is divided into three brother TRILL domains: TRILL 1, TRILL 2 and TRILL 3, and use the higher-level father TRILL domain-TRILL X connects them together. The RB1, RB2 and RB3 in the TRILL X domain are BRBs. This embodiment implements a method for domain interconnection of a TRILL network, such as Figure 7 As shown, the method includes the following steps:

[0087] Step 701: Divide the TRILL network into different TRILL domains by layer;

[0088] Specifically, it will be as Figure 6 The shown TRILL network in a large DC is divided into three private TRILL domains: TRILL 1, TRILL 2 and TRILL 3 and one well-known TRILL domain-TRILL X according to the well-known TRILL domain and private TRILL domain.

[0089] Step 702: The BRB in each TRILL domain notifies the RBridge of the local TRILL domain of the location informa...

Embodiment 2

[0114] In this example, if Figure 8 As shown, there are two private TRILL domains in area A and area B respectively: TRILL 1 and TRILL 2, and the TRILL domains in areas A and B or between areas A and B are connected through an IP network. In order to avoid domain name conflicts between TRILL domains in different regions A and B, the private TRILL domains in their respective regions are logically connected together with well-known regional TRILL A and TRILL B, and then the world-renowned TRILL X is used to make the above-mentioned regions well-known TRILL A and TRILL B are logically connected together. This embodiment implements a method for domain interconnection of a TRILL network, such as Figure 9 As shown, the method includes the following steps:

[0115] Step 901: Divide the TRILL network into different TRILL domains by layer;

[0116] Specifically, such as Figure 8 As shown, two private TRILL domains in area A and area B are divided respectively: TRILL 1 and TRILL ...

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Abstract

The invention discloses a method for interconnecting domains of a transparent interconnection over lots of links (TRILL) network. The method comprises the following steps that: the network is divided into different TRILL domains; a border Rbridge (BRB) in each TRILL domain informs an Rbridge of a local TRILL domain about the position information of a remote-end TRILL domain and the position information of a brother TRILL domain; when detecting that a destination media access control (MAC) address of a data frame is not in the local TRILL domain and the remote-end TRILL domain, the BRB packages the position information of the local TRILL domain into the data frame, and transmits the data frame to the remote-end TRILL domain; and when detecting that the destination MAC address of the data frame is in the local TRILL domain or the remote-end TRILL domain, the BRB transmits the data frame to an Rbridge corresponding to the destination MAC address. The invention also discloses a system for interconnecting the domains of the TRILL network. Due to the adoption of the scheme, the domain-based management of the TRILL network can be realized, and the problem of massive MAC information during the interconnection of a great number of TRILL domains is solved.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a method and system for TRILL (Transparent Interconnection over Lots of Links) network domain interconnection. Background technique [0002] TRILL is a connection layer (L2) network standard recommended by the Internet Engineering Task Force (IETF), which is used to solve the shortage of Spanning Tree Protocol (STP, Spanning Tree protocol) in large data centers (DC, Data Center). 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, Equivalent Cost MultiplePath). [0003] In a TRILL network, a device running the TRILL protocol is called a routing bridge (RBridge). At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46
CPCH04L45/04
Inventor 翟洪军成明江金利忠胡方伟赵静静吕二春
Owner ZTE CORP
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