| 摘要 |
The disclosure discloses a method for realizing hot backup in a centralized network node, in which a main control module and a standby control module are arranged, including: an Resource Reservation Protocol-Traffic Engineering (RSVP-TE) tunnel, which contains two Label Switched Paths (LSPs): a main LSP and a standby LSP, is established for services; and further including: the main control module acquires control information of the main LSP and that of the standby LSP, sets identification information of the control information of the main LSP and that of the standby LSP as Active or Inactive according to the current statuses of the main and standby LSPs, and synchronizes the control information of the main LSP and that of the standby LSP to the standby control module; and the current main control module generates forwarding information according to the control information of the LSP whose identification information is Active, and forwards a service after the switching between the main and standby control modules. The disclosure further discloses a system for realizing the method. The disclosure reduces the switching time and the forwarding time, and improves the service forwarding speed. |
