Folks,
I think that we are conflating two separate efforts.
Draft-bonica-intarea-gre-mtu describes what is widely deployed today. In
today's, one of the following conditions frequently holds:
- the operator of the GRE ingress knows that the GRE egress cannot reassemble
fragments at the required rate
- the operator of the GRE ingress has no information regarding whether the GRE
egress can reassemble fragments at the required rate
Therefore, in draft-bonica, by default, the PTU is equal to the MTU.
Fragmentation doesn't happen in the tunnel. However, in the exceptional case,
where the operator of the ingress knows that the egress can reassemble at the
required rate, fragmentation of the delivery packet is permitted.
The draft that Joe and Fred are considering applies to environments where
egress routers are commonly capable of reassembling at line rate. Since this is
a different environment, it should be addressed in a separate draft.
Ron
-----Original Message-----
From: Joe Touch [mailto:[email protected]]
Sent: Tuesday, February 18, 2014 1:29 PM
To: Templin, Fred L
Cc: Ronald Bonica; [email protected]
Subject: Re: [Int-area] FW: New Version Notification for
draft-bonica-intarea-gre-mtu-04.txt
On 2/18/2014 10:22 AM, Templin, Fred L wrote:
> Hi Joe,
>
> I can see that I am going to have to write a draft on generic tunnel
> fragmentation.
-
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