[c-nsp] Nexus 7000 MPLS

[Nitzan Tzelniker]

We are using 5.2 with LDP not RSVP and done some testing of L3VPN PE/CE
with OSPF (there is a limit to up to 4 OSPF process but you can open a lot
of "address-family vrf" under each process ).
It is interop with Juniper MX without a problem.
So far the only MPLS problem we found is that the developers forgot
to decrease the tcp mss when the packet include MPLS label (at least for
LDP ) so if  you have LDP session not on directly connected interface
(because of IGP metrics )  it will flap.
in NX-OS there is no command to decrease tcp mss for the control plane and
the only work around is to disable pmtu discovery which decrease the tcp
mss to 576 bytes.

Nitzan

On Fri, Jan 6, 2012 at 07:46, Justin M. Streiner <streiner at cluebyfour.org>wrote:

> On Thu, 5 Jan 2012, Kris Price wrote:
>
>  I see the Nexus 7000 does MPLS now (perhaps for some time?). Is there
>> anyone out there using MPLS on these and cares to comment about their
>> experience?
>>
>> I'm particularly interested in RSVP, L3VPN support using OSPF as the
>> PE/CE protocol, any scalability issues, possibly some interop w/ Juniper
>> MX, and of course stability.
>>
>> All on and off list replies very much appreciated. :)
>>
>
> Actually, I'd be interested in hearing about peoples' experience with this
> as well.  The last time I looked, the L3 stuff was there, but EoMPLS was
> still off in the future.
>
> jms
>
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