[nsp] more dot1q?

[Scott Granados]

Ah along the same lines.

I recently got ahold of a 7513 that had one of the two port fast E cards in
it, one fiber and one standard Fast E rj45.

I bought a small fiber tranceiver that had several dip switches that
honestly I left in the default mode.  One said mtu and had two positions
1518 or 1522 1518 was the default so I left it there.  Others were autoneg
on or off I turned it off and the last was cross over which just was the
pin-out.  When I try to use this card and this tranceiver I get lots of mtu
unhappyness.

Tcp sessions can open then no data can pass ie telneting to port 80 yields
results such as an open connection with no data passing, html passing butno
graphics, etc.  Bgp just drops and resets.  If I adjust the mtu smaller
things still break but in even stranger ways.  Has anyone else run in to
this.  I mention dot1q because it was attached to a switch with a dot1q
tagged vlan.  This config breaks though when not using dot1q as well.