3640 to cat3548 ISL Trunk error on interfaces both ends of link
I have a 3640 with a 2 port FE card and a 1port FE card(NM-1FE-TX). Each port is connected as a trunk (ISL) to three seperate 3548 switches. No errors on the 2port card but errors on the single port card and on the switch port on the switch which terminates the trunk. Changed interface and switch and cable same errors.
Any ideas as to cause?
The errors are drop packets in the router and CRC errors in the switch:
errors shown here:
show int fa1/0 sum
*: interface is up
IHQ: pkts in input hold queue IQD: pkts dropped from input queue
OHQ: pkts in output hold queue OQD: pkts dropped from output queue
Re: 3640 to cat3548 ISL Trunk error on interfaces both ends of l
Often times complex troubleshooting issues are best addressed in an interactive session with one of our trained technical assistance engineers. While other forum users may be able to help, its often difficult to do so for this type of issue.
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