METHOD AND APPARATUS FOR FACILITATING PROCESS RESTART IN AN IS-IS SYSTEM

摘要

A method and apparatus for facilitating process restart in an IS-IS router that includes an active router processor (RP) module for supporting an active IS-IS process instance and standby router processor (RP) module for supporting a standby IS-IS process instance. Routing database information maintained by the active IS-IS process is synchronized to a standby database associated with the standard IS-IS process instance, which is used for synchronizing a new database on the active RP module. When a new instance of the active IS-IS process is restarted on the active RP module, the new instance uses the contents of the new database for continuing to maintain routing functionality.