Patent ID: 7518986
Filing Date: 2009-04-14
Classification: H04L

Abstract:
1. A multi-chassis network device comprising: a routing engine for a first chassis configured to manage state information for the multi-chassis network device, wherein the routing engine for the first chassis is further configured to generate a state update indicating a change to the state information and send the state update to a second chassis; a routing engine for the second chassis configured to manage local state information for the second chassis, wherein the routing engine of the second chassis operates as an intermediate consumer of the state update from the routing engine of the first chassis; and a consumer within the second chassis, wherein the routing engine of the second chassis receives the state updates from the routing engine of the first chassis and, in response, updates the local state information in accordance with the state update to synchronize the local state information with the state information of the first chassis and provides the state update to the consumer.