Subject: Re: Moving ethfoo in the main tree
To: Daniel Carosone <>
From: Jason Thorpe <>
List: tech-kern
Date: 12/14/2004 13:51:31
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On Dec 14, 2004, at 1:15 PM, Daniel Carosone wrote:

> Perhaps these requirements are a little different, and merit a
> different solution specifically in gre itself, but if a generic
> solution is feasible I'd like to encourage that path.

VERY different!  When you encap inside GRE, you wind up with a lower 
MTU.  This is going to seriously break Ethernet networks that are 
bridged to that GRE.

To bridge Ethernet over a long-haul network like that, it seems to me 
that you need to encapsulate it in a stream protocol, so that you can 
preserve the local MTU semantics.

Of course, that has its own problems.  This is why I don't like 
"solutions" such as this :-)

         -- Jason R. Thorpe <>

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