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Stacking system network chip nexthop resource allocation method

A technology of stacking systems and network chips, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as item waste and NextHop resource space waste, and achieve the effect of avoiding refresh operations and reducing management difficulty.

Active Publication Date: 2019-11-29
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Only the first 6K NextHop resource space can be used on chip A and chip B, and the excess NextHop resource space is wasted
[0005] 2. If the output port is on chip A and the Index of the applied NextHop is 1, then the entry with Index 1 on chip B / chip C is wasted

Method used

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  • Stacking system network chip nexthop resource allocation method
  • Stacking system network chip nexthop resource allocation method
  • Stacking system network chip nexthop resource allocation method

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Embodiment Construction

[0023] In view of the deficiencies in the prior art, the inventor of this case was able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0024] The stacking system network chip NextHop resource allocation method described in the embodiment of the present invention is realized based on the CHIPID logical address allocation table and the NextHop address mapping table, and the CHIPID logical address allocation table is used to store the base address of the address mapping table obtained according to the source chip ID and the number of entries in the corresponding address mapping table, the table entries are as follows figure 2 As shown; the NextHop address mapping table is used to store the local NextHop address mapped out by the logical address, and its entry is constituted as image 3 shown.

[0025] When the mes...

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PUM

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Abstract

The invention discloses a stacking system network chip NextHop resource allocation method. By configuring the CHIPID logical address allocation table and the NextHop address mapping table, when the message reaches the destination chip, the source chip obtains the base address of the address mapping table and the logical NextHop The address is mapped to the Index of the corresponding entry in the NextHop address mapping table, so as to obtain the local NextHop address. The invention enables the local NextHop resources to be fully utilized, avoids the refresh operation of the forwarding table by the CPU, thereby reducing the difficulty of managing the NextHop resources of the chip by software.

Description

technical field [0001] The invention relates to the technical field of chip resource allocation, in particular to a NextHop resource allocation method for a stacking system network chip. Background technique [0002] The forwarding search of packets in the stack system is separated from the editing of packets. The definition of packet editing actions is stored in the NextHop entry, and the index for reading the NextHop entry is obtained from the forwarding table. When publishing an item, you must first apply for the NextHop resource on the chip corresponding to the output port, and then configure the forwarding entry on the chip at the input port after obtaining the corresponding Index. If the migration between chips occurs on the outbound port, the software will refresh the Index of the associated forwarding entry after the outbound chip applies for NextHop resources. Since the NextHop resource specifications and addressing of each physical chip are not completely consisten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L29/12H04L45/74
CPCH04L45/745H04L61/25H04L61/50
Inventor 杨曙军
Owner SUZHOU CENTEC COMM CO LTD