Patent ID: 6941487
Filing Date: 2005-09-06
Classification: G06F,H04L,H04W

Abstract:
1. A method for providing failure protection in a network node that includes primary and secondary control modules comprising: executing a configuration command within said primary control module of said network node; determining whether said executed configuration command causes a failure of said primary control module; and executing said configuration command within said secondary control module of said network node if execution of said configuration command does not cause a failure of said primary control module; generating table entries at said primary control module of said network node; programming said table entries into a hardware-based forwarding table of said network node; gleaning said table entries from said hardware-based forwarding table; and storing said gleaned table entries in said secondary control module of said network node; wherein said table entries are gleaned from said hardware-based forwarding table in the event of a switchover from said primary control module to said secondary control module.