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Method and device for intercommunicating unicast messages between dune switching line cards and flexible line cards

A technology for unicasting messages and switching line cards, which is applied in the field of board card intercommunication to achieve a simple effect.

Active Publication Date: 2019-06-14
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there are two different line cards in the same system, intercommunication problems are bound to be introduced

Method used

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  • Method and device for intercommunicating unicast messages between dune switching line cards and flexible line cards
  • Method and device for intercommunicating unicast messages between dune switching line cards and flexible line cards
  • Method and device for intercommunicating unicast messages between dune switching line cards and flexible line cards

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Embodiment Construction

[0019] figure 1 A flowchart of a method for intercommunicating unicast packets between a Dune switching line card board and a flexible line card board provided for an embodiment of the present application, and its specific steps are as follows:

[0020] Step 101: The flexible line card board receives the first unicast message encapsulated with the layer 2 header, and finds that the outgoing interface of the next hop of the first unicast message is located on the Dune switching line card board;

[0021] Step 102: The flexible line card board encapsulates a new layer 2 header for the first unicast message according to the next hop of the first unicast message, and encapsulates the first unicast message with the new layer 2 header as an inter-board communication header and the first inter-board communication message with the Layer 2 PPH header; where the Layer 2 PPH header of the first inter-board communication message carries the next-hop outbound interface of the first unicast ...

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Abstract

This application proposes a method and device for unicast message intercommunication between a Dune switching line card board and a flexible line card board. The method includes: the flexible line card board receives the unicast message encapsulated with the layer-2 header, finds that the outgoing interface of the next hop of the unicast message is located on the Dune switching line card board; according to the next hop of the unicast message, it is the first unicast The broadcast message encapsulates the new layer 2 header, and encapsulates the unicast message encapsulated with the new layer 2 header into an inter-board communication message with an inter-board communication header and a layer 2 PPH header; sends the inter-board communication message to the Dune switch line card board; wherein, the Layer 2 PPH header carries the physical port identifier corresponding to the outgoing interface of the next hop of the unicast message on the Dune switching line card board; the Dune switching line card board receives the inter-board communication message and removes the The inter-board communication header and the layer-2 PPH header of the document, and the unicast message encapsulated with the new layer-2 header is sent through the physical port corresponding to the physical port identifier. This application realizes the intercommunication of unicast packets between the Dune switching line card board and the flexible line card board.

Description

technical field [0001] The present application relates to the technical field of card intercommunication, in particular to a method and device for unicast message intercommunication between Dune switching line card boards and flexible line card boards. Background technique [0002] From the perspective of interface density and cost, router boards can be divided into two categories, one is programmable, customizable, with CPU (Central Processing Unit, central processing unit) / FPGA (Field Programmable Gate Array, Field Programmable Gate Array) ) / NP (Network Processor, network processor) is a flexible line card board with a forwarding core, and the other is a switching line card board with relatively fixed functions, superior cost, and a switching chip as a forwarding core. When there are two different line card boards in the same system, intercommunication problems will inevitably be introduced. [0003] Existing typical switching chips include: a switching chip of XGS archit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/935H04L12/947H04L49/111
Inventor 孟丹
Owner NEW H3C TECH CO LTD
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