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Method and system for transferring TRILL (transparent interconnection of lots of links) network messages in an ASIC(application specific integrated circuit )

A technology of message and message header, applied in the field of network communication, to achieve the effect of reducing cost, high bandwidth, and realizing multi-path forwarding

Active Publication Date: 2013-03-06
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no method and system for realizing TRILL network message forwarding in ASIC (Application Specific Integrated Circuit, application specific integrated circuit)

Method used

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  • Method and system for transferring TRILL (transparent interconnection of lots of links) network messages in an ASIC(application specific integrated circuit )
  • Method and system for transferring TRILL (transparent interconnection of lots of links) network messages in an ASIC(application specific integrated circuit )
  • Method and system for transferring TRILL (transparent interconnection of lots of links) network messages in an ASIC(application specific integrated circuit )

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] Such as figure 1 As shown, it is a typical TRILL network topology diagram. The local Ethernet includes servers and several hosts, which are connected to the TRILL network through routing bridges (RBridge1, ... RBridge6). The solution of the present invention will be introduced by taking RBridge1 in this network topology as an example.

[0051] The message is a data unit exchanged and transmitted in the network, including complete data information to be sent, and is a network transmission unit. During transmission, it is continuously encapsulated into groups, packets, and frames for transmission. The way of encapsulation is to add message headers.

[0052] In the present invention, the types of TRILL network messages to be forwarded may in...

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Abstract

The invention provides a method and a system for transferring TRILL(transparent interconnection of lots of links) network messages in an ASIC(application specific integrated circuit ). The method includes steps of analyzing received messages to obtain message header information including destination MAC(media access control) address, VLAN(virtual local area network) information and input interface configuration information, and confirming types of the received messages; acquiring input interface information and looking up tables according to the input interface configuration information; looking up the table by particularly looking up the TRILL transfer table according to the analyzed destination MAC address and the VLAN information so as to acquire output interface configuration information; acquiring output interface information required to be transferred according to a table look-up result; packaging the analyzed messages into TRILL messages including the destination MAC address and sending the TRILL messages out from corresponding output interferences. Since the advantages of high bandwidth and low cost of an Ethernet switch chip are utilized sufficiently, cost in network deployment is reduced for establishment of a TRILL network data center.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and system for forwarding TRILL network messages in an ASIC. Background technique [0002] TRILL is the abbreviation of Transparent Interconnection of Lots of Links, which is the connection layer (L2) "Ethernet frame multipath forwarding" network standard recommended by IETF (Internet Engineering Task Force), which can overcome the Spanning Tree Protocol (STP). There are issues with scale and link bandwidth utilization. STP avoids loops by blocking redundant links, leaving only one active path, while other paths are blocked as idle bandwidth; when an active path fails, the network must be reconverged on a new path, which takes a few seconds clock time, inefficiency. TRILL solves the loop problem by introducing the link state routing protocol IS-IS (Intermediate System to Intermediate System) into the L2 network, while retaining the L2 multipath, decomposing the net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/761H04L29/12H04L45/74H04L45/16
Inventor 方沛昱廖继平
Owner SUZHOU CENTEC COMM CO LTD
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