Clock synchronization method and stack controller in switch stack system

Abstract

The present invention provides a clock synchronization method in a switch stacking system. The method includes: determining a switch used for clock synchronization, and using the switch as a synchronization clock source; and using the synchronization clock source as a reference, sequentially configuring the clock synchronization of each switch. stack port, so that the clock of the synchronization clock source is synchronized to each switch in the stack system; the synchronization clock source synchronizes the clock to each switch in the stack system according to the configured stack port. The invention also discloses a stacking controller in a switch stacking system. By applying the clock synchronization method and the stacking controller of the invention, the clock synchronization inside the switch stacking system can be effectively realized, so that the switch stacking system can meet the requirements of mobile Returns the need for clock synchronization.

Description

technical field [0001] The invention relates to the technical field of Ethernet switch stacking, in particular to a clock synchronization method and a stacking controller in a switch stacking system. Background technique [0002] At present, Ethernet switch stacking technology can provide as many ports as possible in a limited space. Therefore, switch stacking technology is more and more used in the field of mobile communication technology, and with the continuous development of mobile communication technology, mobile services become increasingly At the same time, operators backhaul other access services and mobile services on the same network, resulting in the rapid evolution of mobile backhaul networks to IP. [0003] However, in the existing switch stacking technology, the internal clock synchronization of each stacked switch is not implemented (the clock synchronization here specifically refers to frequency synchronization), so it cannot meet the needs of mobile backhaul...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing switch stacking technology, the internal clock synchronization of each stacked switch is not implemented (the clock synchronization here specifically refers to frequency synchronization), so it cannot meet the needs of mobile backhaul clock synchronization, that is, the existing switches cannot be stacked The application of technology to synchronous network seriously hinders the further development of stacking technology

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