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. 17, 2013
Filed:
Mar. 15, 2011
Yi Yang, Morrisville, NC (US);
Alvaro E. Retana, Raleigh, NC (US);
James L. NG, Mebane, NC (US);
Abhay Roy, Santa Clara, CA (US);
Alfred C. Lindem, Cary, NC (US);
Sina Mirtorabi, Santa Clara, CA (US);
Timothy M. Gage, Durham, NC (US);
Syed Khalid Raza, Fremont, CA (US);
Yi Yang, Morrisville, NC (US);
Alvaro E. Retana, Raleigh, NC (US);
James L. Ng, Mebane, NC (US);
Abhay Roy, Santa Clara, CA (US);
Alfred C. Lindem, Cary, NC (US);
Sina Mirtorabi, Santa Clara, CA (US);
Timothy M. Gage, Durham, NC (US);
Syed Khalid Raza, Fremont, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a Link State Advertisement (LSA) is received from a first router in a network at a second router in the network. The LSA advertises an address of an interface of the first router. The second router determines whether the LSA includes a transit-only identification that indicates the interface of the first router is a transit-only interface. If the LSA does not include a transit-only identification, the second router installs the advertised address of the interface of the first router in a Router Information Base (RIB) of the second router. If the LSA does include a transit-only identification, the second router declines to install the advertised address of the interface of the first router in the RIB of the second router.