A standby card is powered after an active card. A connection command is received by the standby card from the active card. The connection command is associated with a logical connection number (LCN) for a connection. The LCN is used as a first index to a location in a first memory area to retrieve a...http://www.google.de/patents/US6941388?utm_source=gb-gplus-sharePatent US6941388 - Method and apparatus for handling connections in hot standby line cards
