BFD LSP Ping

[Vishwas Manral <vishwas.ietf at gmail.com>]

Hi,

I noticed a basic issue with BFD LSP ping with a a TTL processing in a
Uniform Model LSP.

The draft states that:


   The BFD control packet sent by the ingress LSR MUST be a UDP packet
   with a well known destination port 3784 [BFD-IP] and a source port
   assigned by the sender as per the procedures in [BFD-IP].

A single hop session verifies the TTL is 255. However the TTL in the
IP header is changed at the Egress before the IP header handling
because we are using hte uniform model. I think the easiest and the
best way for this would be to use Multihop sessions in both
directions.

Do let me know if I am missing something?

Thanks,
Vishwas