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:
Aug. 11, 2009
Filed:
Dec. 21, 2006
Khanna Sanjay, Cary, NC (US);
Venugopalan Ullanatt, Cary, NC (US);
Tobias Karlsson, Raleigh, NC (US);
David Sinicrope, Cary, NC (US);
Khanna Sanjay, Cary, NC (US);
Venugopalan Ullanatt, Cary, NC (US);
Tobias Karlsson, Raleigh, NC (US);
David Sinicrope, Cary, NC (US);
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
The present invention relates to a pair of routers which implement an active VRRP group and one or more passive VRRP groups wherein the active VRRP group executes the VRRP election protocol and the passive VRRP group(s) do not execute the VRRP election protocol but instead the passive VRRP group(s) mimic the active VRRP group such that when the active VRRP group has a state change then all of it's dependent passive VRRP group(s) will also have the same state change such as becoming a master or a backup.