Label distribution protocol synchronization in multi-protocol label switching environments
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United States of America Patent
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Aug 14, 2012
Grant Date -
Apr 28, 2011
app pub date -
Oct 22, 2009
filing date -
Oct 22, 2009
priority date (Note) -
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Abstract
A method may include determining that a label distribution protocol (LDP) session is not associated with an interface of a network device, wherein the interface of the network device is included in a targeted LDP session. Interior gateway protocol (IGP) metric information for both a physical interface associated with the network device and a forwarding adjacency label switched path (FA-LSP) associated with the targeted LDP (tLDP) session may be configured to each indicate a high cost. The configured metric information may be transmitted to other network devices in a network that includes the LSP and the targeted LDP session to inhibit selection of the targeted LDP session by the other network devices when routing data through the network.
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