North American Network Operators Group
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Re: IP over SONET considered harmful?

  • From: Paul Ferguson
  • Date: Sat Mar 21 09:35:17 1998 
At 05:34 AM 3/21/98 -0800, Sean M. Doran wrote:

>| Not decrementing the IP TTL at each LSR hop no more breaks the
>| IP TTL mechanisms than does frame-relay or ATM.
>
>If this is the goal why not have a knob to generate an "appropriate"
>ICMP message when IP TTL is exceeded, where appropriate may
>mean "not relating to the MPLS infrastructure" or "none at all"?

Sounds reasonable to me. My point was that decrementing the IP TTL,
whether it be at each LSR or only at egress, should be a decision
that can be made by the provider.

- paul