Message processing method and device, communication equipment and switching circuit

Abstract

The embodiment of the invention provides a message processing method and device, communication equipment and a switching circuit. The message processing method comprises the steps that first equipmentreceives a message from second equipment; the first equipment determines a first queue cache for storing the message; the first equipment determining a first upper limit value of the first queue cache according to the available value of a first port cache and the available value of a global cache, wherein the global cache comprises a plurality of at least one port cache, and the first port cacheis one of the at least one port cache, and the first port cache comprises at least one queue cache, and the first queue cache is one of the at least one queue cache; and the first equipment processesthe message according to the first upper limit value of the first queue cache, the occupation value of the first queue cache and the size of the message. According to the embodiment of the invention,differential discarding of the message is realized.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a packet processing method and apparatus, a communication device, and a switching circuit. Background technique [0002] Shared cache is a mainstream configuration parameter of existing routers, switch forwarding chips (traffic manager, TM) and switching network. Shared caches are usually allocated and managed from multiple levels. Among them, multi-level caches from low to high can include: Queues Cache, port cache and global cache, etc. The global buffer may include at least one port buffer, and the port buffer may include at least one queue buffer. When the high-level cache is congested, regardless of whether the low-level cache is congested, the packets that will be stored in the low-level cache will be discarded indiscriminately. For example, when the packets stored in the low-priority queue buffer 1 cause port buffer congestion, t...

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Problems solved by technology

For example, when the packets stored in the low-priority queue buffer 1 cause port buffer congestion, the packets to be stored in the high-priority queue buffer 2 will be discarded indiscriminately.

[0003] Based on the above congestion control method, when congestion occupies too much shared buffer, high-priority packets and non-congestion-level packets will be discarded indiscriminately, and low-priority Bandwidth allocation errors such as unfair bandwidth allocation

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