[f-nsp] Trouble getting GigE link to Cisco

[George B.]

The fix was "switchport nonegotiate" to turn off Cisco DTP which is enabled
on Cisco ports by default.

http://packetlife.net/blog/2008/sep/30/disabling-dynamic-trunking-protocol-dtp/

As I suspected, they had speed nonegotiate confused with switchport
nonegotiate.

Everything is now working.


On Thu, Mar 11, 2010 at 3:25 PM, Gerald Krause <gk at ax.tc> wrote:

> Am 11.03.10 22:15, schrieb George B.:
> > I am working on a new deployment in Verizon data center in Europe.  We
> > have an MLX with LX optics.  Our two routers link fine but when we
> > connect the uplinks to Verizon, no link.  I have tried everything I know
> > such as rolling xmit/receive, changing negotiation, etc.  The config is
> > REALLY simple, just an IP address, route-only on the interface, and no
> > spanning-tree.  Links fine between MLX units, will not link to Verizon's
> > cisco.
> >
> > I recall having this same problem with vendors using Cisco in the past
> > (Level3, Savvis UK) and it took them a while to figure it out but they
> > have always done something that allowed things to work eventually.
> > Anyone have the magic clue I can pass to VZB to make this thing work?
>
> If you have an solution - let me hear. I'am still unable to connect a
> new XMR to an old Cat5000/SUP3 with GE-SX. Because I've tried any
> combination of interface settings on both the XMR and the Cat5000 side,
> I doubt that they ever will see each other (I hadn't this problem with
> our oldish Foundry NI800).
>
> --
> Gerald
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