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:
May. 28, 2013
Filed:
Jul. 30, 2010
Srikrishnan Venkataraman, Santa Clara, CA (US);
Sivaramakrishna Kuditipudi, Milpitas, CA (US);
Prashanth Ishwar, Santa Clara, CA (US);
Pradeep G. Jain, Sunnyvale, CA (US);
Jeremy Fine, Mountain View, CA (US);
Will Lockhart, Cambridge, GB;
Srikrishnan Venkataraman, Santa Clara, CA (US);
Sivaramakrishna Kuditipudi, Milpitas, CA (US);
Prashanth Ishwar, Santa Clara, CA (US);
Pradeep G. Jain, Sunnyvale, CA (US);
Jeremy Fine, Mountain View, CA (US);
Will Lockhart, Cambridge, GB;
Alcatel Lucent, Paris, FR;
Abstract
A capability is provided for switching between primary and standby multicast trees on a network egress node of a multicast network. The network egress node includes a first MPLS LABEL Record including a first tree identifier of the first multicast tree, a second MPLS LABEL Record including a second tree identifier of the second multicast tree, and a MULTICAST Record including a plurality of primary tree identifiers and a plurality of standby tree identifiers. The MPLS LABEL Records include parameters, respectively, where the values of the parameters are indicative of respective packet processing rules to be applied for determining whether to accept or discard packets. When the parameter of an MPLS LABEL Record is set to a first value, a determination as to whether to accept or discard a packet received via the associated multicast tree is performed by comparing the tree identifier of the MPLS LABEL Record only to primary tree identifiers of the MULTICAST Record. When the parameter of an MPLS LABEL Record is set to a second value, a determination as to whether to accept or discard a packet received via the associated multicast tree is performed by comparing the tree identifier of the MPLS LABEL Record to primary tree identifiers of the MULTICAST Record or standby tree identifiers of the MULTICAST Record.