[nsp] more dot1q?

Scott Granados scott@wworks.net
Tue, 26 Nov 2002 10:06:10 -0800


I tried that, broke anyway.  I tried both 1518 and 1522 to see if it made a
difference.

Didn't and it also didn't work properly on an untagged interface set in both
modes.

----- Original Message -----
From: "Tomas Daniska" <tomas@tronet.com>
To: "Scott Granados" <scott@wworks.net>; "Cisco List"
<cisco-nsp@puck.nether.net>
Sent: Tuesday, November 26, 2002 1:19 AM
Subject: RE: [nsp] more dot1q?


> set the larger mtu on the converter - those four bytes are what dot1q
> adds up to the frame...
>
> --
>
> deejay
>
> > -----Original Message-----
> > From: Scott Granados [mailto:scott@wworks.net]
> > Sent: 25. novembra 2002 23:33
> > To: Cisco List
> > Subject: [nsp] more dot1q?
> >
> >
> > 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.
> >
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> >
>
>