Re: Tunnels and diffserv question

[Fred Baker <fred@cisco.com>]

On Aug 25, 2006, at 5:14 PM, Jeroen Massar wrote:

> Simply copying over the inner ToS/DS field to the outer one should  
> be sufficient. I haven't seen any implementation actually doing  
> this though, but it could be that some implementations already do  
> it in that manner.

the more important question is copying it back to the inner header on  
removal from the tunnel. This is optional in that specification, and  
I know of field deployments that do it either way.

Yes, common implementations do this.