Re: [mpls] Last Call: <draft-ietf-mpls-in-udp-04.txt> (Encapsulating MPL

Hi,

On 2014-1-14, at 16:23, Joel M. Halpern <jmh(_at_)joelhalpern(_dot_)com> wrote:
> Isn't that basically the problem of the inner traffic sender, not the problem 
> of the tunnel that is carrying the traffic?
no, because the sender of the inner traffic may be blasting some L2 traffic, 
for an L2 where that is OK behavior. But that traffic is now being encapsulated 
inside UDP and can hence go anywhere on the net *without the sender being aware 
of this*.

> Asking tunnel's to solve the problem of applications with undesirable 
> behavior seems backwards.
It is the *tunnel* that performs the encapsulation and allows that traffic to 
go places it couldn't before. And so it's the tunnel's responsibility to make 
sure that the traffic it injects into the Internet complies with the BCPs we 
have on congestion control.

Lars

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