Yep, we had to send in the line cards to get them
upgraded, didn't have any information on upgrading the s/w
on the Line cards and TAC wanted me to RMA them back. So.
Boy this one was a real pain because it only seemed protocol
specific at the time.
Here's the referenced Bug for those interested.
CSCeb67650 Bug Details
Headline WS-X6548-GE-TX & WS-X6148-GE-TX may drop frames on egress
Product cat6000 Model x6548
Component hw-1000tx Duplicate of
Severity 2 Severity help Status Resolved Status help
First Found-in Version 8.1 All affected versions First Fixed-in Version 8.1(1.8), 8.1(1.9), 8.2(0.18)DEL, 7.6(2.3), 12.1(19.4)E, 12.2(17a)SX Version help
Packets destined out the WS-X6548-GE-TX or the WS-X6148-GE-TX that are
less than 64 bytes will be dropped. This can occur when a device forwards a
packet that is 60 bytes and the 4 byte dot1q tag is to added to create a valid
64 byte packet. When the tag is removed the packet is 60 bytes. If the
destination is out a port on the WS-X6548-GE-TX or the WS-X6148-GE-TX it will
be dropped by the linecard.
Additionally, if packets are received on an interface that does not have a
minimum MTU of 64 bytes (e.g. ATM,POS) and are destined out the WS-X6548-GE-TX
or the WS-X6148-GE-TX it will be dropped by the linecard.
No current workaround other than moving the recieving device to a different