The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Mar. 24, 2004
Chandrashekhar Appanna, Cupertino, CA (US);
Ruchi Kapoor, Santa Clara, CA (US);
Barry Friedman, Sunnyvale, CA (US);
Himanshu Shah, Milpitas, CA (US);
Gargi Nalawade, Santa Clara, CA (US);
Shyam Suri, Fremont, CA (US);
John Harper, Mountain View, CA (US);
Chandrashekhar Appanna, Cupertino, CA (US);
Ruchi Kapoor, Santa Clara, CA (US);
Barry Friedman, Sunnyvale, CA (US);
Himanshu Shah, Milpitas, CA (US);
Gargi Nalawade, Santa Clara, CA (US);
Shyam Suri, Fremont, CA (US);
John Harper, Mountain View, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and apparatus for efficiently enabling routing states to be recovered after a failover or during a software upgrade in a system which supports graceful restart and stateful switchover are disclosed. According to one aspect of the present invention, a method for restarting a network device which has a plurality of routers and is in communication with a first peer being arranged to support graceful restart and a second peer includes performing a graceful restart with respect to the first peer. A peer transparent failover is performed with respect to the second peer. The graceful restart and the peer transparent failover are performed in response to a failure associated with the network device.