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:
Sep. 28, 2010
Filed:
Feb. 28, 2007
Sina Mirtorabi, Santa Clara, CA (US);
Abhav Roy, Cupertino, CA (US);
Sina Mirtorabi, Santa Clara, CA (US);
Abhav Roy, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a method includes receiving a neighbor discovery message and a border routing message through an interface at a particular router. The interface communicates with a border network segment between first nodes routing with IPv6 using a first routing protocol and different second nodes routing using a different routing protocol. The messages are received from an alien router. The border routing message includes foreign routing data that indicates a route among the second nodes. If the alien router's interface on the border segment does not have a global IPv6 address, then a fictive IPv6 address is generated, which includes a global prefix of an IPv6 address for the particular router and an interface identifier associated with the alien router. The fictive IPv6 address and the foreign routing data are inserted into a domain scope external advertisement message that is sent to the first nodes.