01-09-2012 09:38 PM
Whey CSPF (Traffic Engineering Database) is required for MPLS Fast Failover in MPLS? Because as I believe it is required for MPLS traffic engineering (that is link colouring, bandwidth reservation etc).
Thanks for the reply
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01-15-2012 02:28 AM
The detour bypass lsp that is to be used in case of link failure should be adequate to accommodate all TE specs needed by the protected lsp.
01-17-2012 09:25 AM
The detour (fast reroute) inherits the link colouring from the protected LSP although bypass LSP (link/node protection) does not. But you can manually specify the link colouring/bandwidth for the detour and bypass LSP. Since link colouring and bandwidth reversation etc requires the CSPF thats why FRR, Link/Node protection needs the CSPF.