The MPLS-OPS Archive

["Thomas D. Nadeau" <tnadeau@cisco.com>]

>I have been searching to find how FEC is applied in today's 
>major mpls router vendors.
>Since many vendors do not support FTN MIB, is there any way to 
>programmatically deduce the FEC that would be 
>applied to an incoming packet at the ingress LER.

	I suppose vendors should implement the MIB. :P

>cisco's LDP mib has mplsLdpFecTable that relates an address 
>prefix/destination hostaddress to an LSP id.
>What does the address prefix/destination hostaddress signify ? 
>Is it the address of the LER at the egress
>point or Is it the address of the IP devices outside the Mpls 
>cloud that is connected through an egress LER. ?

	It is the FEC associated with the label distributed
by LDP. This is not the best way to get the FTN information
in general, which is why we created the FTN MIB. For
example, if you are not using LDP (i.e.: just TE) then
you cannot get the right mapping.

	--Tom


>
>dummuku.
>
>
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