Method and device for multi-protocol shared entry resource pool
A resource pool and multi-protocol technology, applied in the field of multi-protocol shared entry resource pool, can solve the problem that the entry space cannot be allocated flexibly
Active Publication Date: 2021-01-01
深圳市楠菲微电子有限公司
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[0016] The purpose of the embodiments of the present invention is to provide a method and device for multi-protocol shared entry resource pools, which are used to solve the problem that various protocol entry spaces cannot be allocated flexibly
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[0038] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.
[0039] figure 2 It is a flow chart of the method for multi-protocol sharing table entry resource pool provided by the present invention, such as figure 2 As shown, the method includes:
[0040] Step 201, receiving a table lookup request.
[0041] Step 202, obtain the bucket address of the bucket in the preset entry resource pool according to the table lookup request.
[0042] Step 203, read and write according to the bucket address in the entry resource pool.
[0043] Among them, the entry resource pool is shared by layer L2 entries, layer L3 entries, and the longest prefix ...
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The embodiment of the invention provides a method and apparatus of multiple protocols to share a table entry resource pool, and belongs to the technical field of sharing the resource pool by the multiple protocols. The method of the multiple protocols to share the table entry resource pool comprises the following steps: receiving a table lookup request; obtaining a barrel address of a barrel set in the table entry resource pool in advance according to the table lookup request; and performing reading and writing based on the barrel address in the table entry resource pool, wherein the table entry resource pool is composed of a layer L2 table entry, a layer L3 table entry and the longest prefix match LPM sharing. According to the method and apparatus, the shared table entry resource pool ispreset, the address lookup in the shared table entry resource pool is specified to the lookup of the barrel address, and this fine grained continuous and adjustable protocol table entry space divisionmode solves the problem that various protocol table entry spaces cannot be allocated flexibly.
Description
technical field [0001] The present invention relates to the technology of multi-protocol shared resource pool, in particular to the method and device of multi-protocol shared table entry resource pool. Background technique [0002] In an Ethernet switching ASIC chip that supports Layer 3 switching or even Layer 4 switching, there are generally multiple protocol pipelines that process Layer 3 and Layer 4 protocols of Ethernet packets in parallel. There are multiple access ports on each pipeline, which need to read and write the protocol table at the same time. [0003] Each protocol table is a collection of a group of protocol data structures, which has one or more read-write access interfaces externally, and is composed of one or more blocks of RAM (random access memory) internally, and stores these in a certain order of addresses. Group protocol data structure. The protocol pipeline components perform read and write access to each entry through the read and write ports of...
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IPC IPC(8): H04L12/933H04L12/947
CPCH04L49/103H04L49/25
Inventor 伍楠李霞娟尤子威杨健鸷王克非
Owner 深圳市楠菲微电子有限公司