BTW...I'd seen that URL before, when initially troubleshooting the
problem...but the switch (a 2924xl-en) seems to think it can handle an
interface MTU of up to 2018 bytes. Setting the MTU to 2000 doesn't stop
the input errors (giants).
On Tue, 13 Nov 2001, Clinton Work wrote:
>
> According to the following Cisco document. The 2900 and 3500XL switches only
> support baby jumbo frames (1522). You can only support on MPLS label with
> these switches.
>
> http://www.cisco.com/warp/customer/105/jumbo.html#subsecondfour
>
> -----Original Message-----
> From: jlewis@lewis.org [mailto:jlewis@lewis.org]
> Sent: 13 November, 2001 11:35 AM
> To: cisco-nsp@puck.nether.net
> Subject: [nsp] MPLS issues with MTU
>
>
> In the Cisco Press book on MPLS, it mentions that if you're doing MPLS on
> routers that communicate via a catalyst ethernet switch, you may need to
> contact TAC for a workaround that enables the switch to handle the
> oversized packets caused by tagged packets. I ran into this problem this
> morning with a 3640 talking to a 7206 via a 2924xl-en (the 2924xl-en is
> actually doing VLANS & ISL with the 7206).
>
> The workaround I've come up with is to set the MTU on the switch ports
> involved higher. Is that the correct solution?
>
>
-- ---------------------------------------------------------------------- Jon Lewis *jlewis@lewis.org*| I route System Administrator | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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