Sprint IPv6

[Gert Doering]

Hi,

On Thu, Oct 02, 2008 at 10:51:25AM +0200, Bonness, Olaf wrote:
> > As a customer, we really really dislike seeing 6PE used in 
> > our upstreams'
> > networks because it means that traceroute6 is becoming 
> > useless - you can
> > see that "there is a problem somewhere in the upstream network", but 
> > you have no chance of pinpointing things like packet loss or (worse)
> > black holes to the routers/links where it's happening.
> 
> But this seems true for all tunneling techniques and not only for 6PE 
> or am I misssing something?

Yes.  6PE has somewhat nastier failure modes due to the decoupling of
data and control plane, though.

(If a "normal" tunnel breaks, usually the IGP used will notice that the
tunnel isn't working anymore, and will route around it and/or the BGP
session will break)

Gert Doering
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