[c-nsp] Newbie traceroute question

[Aaron]

I think the simplest answer to the question is how "mpls ip propagate-ttl"
is configured.
"no mpls ip propagate-ttl forwarded"  will hide the mpls structure from
customers.



On Tue, Feb 9, 2016 at 3:25 PM, Nitzan Tzelniker <nitzan.tzelniker at gmail.com
> wrote:

> Take a look on this
>
>
> http://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/26585-mpls-traceroute.html
> It use extention based on https://tools.ietf.org/html/rfc4950
>
> Nitzan
>
> On Tue, Feb 9, 2016 at 10:06 PM, Matěj Grégr <igregr at fit.vutbr.cz> wrote:
>
> > Hi Hank,
> >   you can check:
> >
> >
> http://www.cisco.com/c/en/us/support/docs/ip/ip-routed-protocols/22826-traceroute.html
> >
> > It doesn't answer your specific question about MPLS, but there are some
> > useful information - which protocol is used by default, reply codes,
> > differences between Linux/Windows/Cisco, etc.
> >
> > M.
> >
> > On 02/09/2016 07:26 PM, Hank Nussbacher wrote:
> > > When doing a traceroute from a Cisco IOS, what is being done under the
> > > hood so that sometimes I am able to see MPLS hops from within the
> > > traceroute?
> > >
> > > Thanks,
> > > Hank
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