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Table entry management method and device

A table item management and table item technology, applied in the field of network communication, can solve problems such as time-consuming, and achieve the effect of facilitating overall management, saving time, and achieving simplicity

Active Publication Date: 2018-01-05
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a table item management method and device to avoid problems such as time-consuming caused by interface board sorting

Method used

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  • Table entry management method and device
  • Table entry management method and device

Examples

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Embodiment Construction

[0024] 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.

[0025] In MPLS L3VPN, after a PE device receives a packet through an interface, the chip on which the interface resides, such as the ARAD chip, performs the following steps: figure 1 forwarded as shown. The chip on the interface board where the interface is located is marked as chip 1_1. Such as figure 1 As shown, chip 1_1 first finds the matching ECMP entry according to the destination address of the message. The ECMP entry contains two equivalent forwarding equivalence classes (FEC), and chip 1_1 calculates a hash value based on the message content. , select one FEC from two FECs according to the hash value, assuming that FEC1 is selected. Assuming that the outgoing interface in FEC1 is the local interface of the interface board where chip 1_...

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PUM

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Abstract

The invention provides a table entry management method and device. In the invention, a main control board can implement an operation of adding an index of a second-class ENCAP table entry into a first-class ENCAP table entry corresponding to a resource ID by carrying the resource ID of a first-class ENCAP resource in an associated second-class NHLFE table entry in a next hop, and implements association of the first-class ENCAP table entry and the second-class ENCAP table entry; and compared to the prior art in which an existing interface board carries out sorting on a next hop of contents in each ECMP issued by the main control board, the table entry management method and device provided by the invention can greatly save time and improve efficiency, are very simple to implement and convenient for overall management, and also cannot have conditions of fault packets, disordered packets and the like.

Description

technical field [0001] The invention relates to network communication technology, in particular to a table item management method and device. Background technique [0002] The main control board of the switch allocates a segment of encapsulation (ENCAP) resources with continuous IDs for equivalent forwarding and synchronizes them to each interface board. The resource ID here is essentially the address identifier of the resource. For example, the main control board allocates resource IDs ranging from 0 to 127, a total of 128 ENCAP resources and synchronizes them to each interface board, and each interface board uses these 128 ENCAP resources. [0003] The ENCAP resource is used to store the ENCAP entry, and the ENCAP entry is indexed by the ID of the ENCAP resource where it is located. [0004] In order to support cross-chip forwarding, it is necessary to ensure that different boards can find the same ENCAP entry content according to the same ENCAP entry index. A commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/947H04L45/74
Inventor 黄玉成
Owner NEW H3C TECH CO LTD
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