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Label forwarding information storage method and device, and message forwarding method and device

A technology of information storage and label forwarding, applied in the field of network communication, can solve the problems of increasing message forwarding delay, time consumption, and affecting message forwarding efficiency, so as to improve efficiency and reduce delay

Active Publication Date: 2011-06-29
BEIJING ZHIGU TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the operation of searching the label forwarding table is very time-consuming, searching the label forwarding table twice will increase the forwarding delay of the message and seriously affect the forwarding efficiency of the message

Method used

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  • Label forwarding information storage method and device, and message forwarding method and device
  • Label forwarding information storage method and device, and message forwarding method and device
  • Label forwarding information storage method and device, and message forwarding method and device

Examples

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Embodiment approach

[0081] by Figure 2B As shown in the example, this embodiment provides an implementation mode of extending the public network non-POP storage area from the public network POP storage area: if the first entry in the public network POP storage area is free, the first entry in the private network storage area The information in an entry is moved to the first entry in the original public network POP storage area (that is, the last entry after the expansion of the private network storage area), and the first entry in the original private network storage area Extended to an entry in the non-POP storage area of ​​the public network. If the first entry in the public network POP storage area is not free, move the information in the first entry in the public network POP storage area to the free entry in the public network POP storage area, and then store the information in the private network The information in the first entry of the area is moved to the first entry of the original pub...

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Abstract

The invention provides a label forwarding information storage method, a label forwarding information storage device, a message forwarding method and a message forwarding device. The storage method comprises the following steps of: when label information to be stored is a public network label, judging a first behavior corresponding to the label information is a POP behavior or not; if the first behavior is judged not to be the POP behavior, storing the label information to a label 1 in a public network non-POP storage area; if the first behavior is judged to be the POP behavior, storing the label information to the label 1 in a public network POP storage area; and when the label information is a private network label and if a penultimate hop popping (PHP) function is not supported or supported but not enabled in the previous hop, storing the label information to a label 2 in a private network storage area, modifying the first behavior by using a second behavior and storing the second behavior into a label forwarding table, wherein the public network non-POP storage area, the private network storage area and the public network POP storage area are sequentially adjacent in the label forwarding table. In the technical scheme of the invention, a delay in message forwarding can be reduced, and the message forwarding efficiency is improved.

Description

technical field [0001] The invention relates to network communication technology, in particular to a label forwarding information storage method and device, and a message forwarding method and device. Background technique [0002] A layer-3 switch (hereinafter referred to as switch) with Multi-Protocol Label Switching (abbreviated as: MPLS) function mainly relies on the label (Label) on the Application Specific Integrated Circuit (abbreviated as: ASIC) to transfer This article implements the forwarding of MPLS packets. Several pieces of label forwarding information are stored in the label forwarding table, and each label forwarding information includes two parts: label information and forwarding information. Label information is a keyword required for forwarding MPLS packets, and is usually referred to as a label for short; forwarding information is a behavior defined by the corresponding label information, that is, MPLS packets are processed according to the behavior. Amo...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/50
Inventor 陈涛
Owner BEIJING ZHIGU TECH SERVICE