A network device includes a primary control unit that establishes a network tunnel with another network device. The network device applies a silent failover technique to failover from the primary control unit to a backup control unit while maintaining the network tunnel. The network tunnel may be, for...http://www.google.fr/patents/US7808889?utm_source=gb-gplus-shareBrevet US7808889 - Silent failover from a primary control unit to a backup control unit of a network device
Silent failover from a primary control unit to a backup control unit of a ...
