Monitor for multi-protocol label switching (MPLS) networks

Details Monitor for multi-protocol label switching (MPLS) networks Monitor for multi-protocol label switching (MPLS) networks

2007-05-05

2010-11-23

Moore, Ian N (Department: 2463)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S395300

Reexamination Certificate

active

07839796

ABSTRACT:
In one embodiment, a method includes receiving label data that indicates all interface labels that belong to each path ID of multiple path IDs associated with corresponding multiple paths between provider edge nodes in a Multi-Protocol Label Switching (MPLS) network. Each interface label is associated with a network interface on a node in the MPLS network. Based on the label data, an untested list that holds data that indicates all unique interface labels is generated. A tested interface selected from the untested list is scheduled for testing. After scheduling, the interface label of the tested interface is removed from the untested list. It is determined whether the untested list still includes data for at least one interface label. If not, then a test of the MPLS network is completed without testing every path end to end, thus conserving network resources.

REFERENCES:
patent: 2004/0205239 (2004-10-01), Doshi et al.
patent: 2006/0215577 (2006-09-01), Guichard et al.
patent: 2007/0237097 (2007-10-01), Maharana et al.
Cisco Systems, Inc., IP SLAs—LSP Health Monitor, /univercd/cc/td/doc/product/software/ios122sb
ewft/122sbc27/sbchmon.pdf, May 28, 2006, p. 80pp, Publisher: Cisco Systems, Inc., Published in: San Jose, CA, Internet www.cisco.com.

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