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Why Does TE Tunnel Setup Fails Although the LSP Is Successfully Calculated?

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Why Does TE Tunnel Setup Fails Although the LSP Is Successfully Calculated?

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The possible causes can be: l TEDB, the extension of IGP-TE, does not contain all TE information. For example, TEDB does not contain whether TE should be enabled on a certain link or which router is enabled with RSVP-TE or CR-LDP. After IGP-TE completes extending messages and CSPF calculation is completed, the signaling to set up an LSP may reach a router without any signaling protocol. The LSP setup then fails. l The resource on the link changes, such as the available bandwidth has been preoccupied by another new CR-LSP.

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