Cisco3550 Help?

[keithja]

I'm having a problem interconnecting 2 Cisco-3550's via Fast-ethernet:

BBswitch-p20{---------------}wkgrpSw-p24

I started out with default settings except speed/duplex were set to 100/full on both units.

I have link lights at both ends. Both Ports are showing "up" line-protocol is flapping on wkgrpsw
All packets are being discarded - no packet errors are occuring.
Different ports have been tried, and wkgrpsw-p24 worked just fine when it was connected to a 3524 during configuration.

I've tried forcing both interconnecting trunks into trunking mode both with negotiate and forced to ISL.

I'm only using 1 VLAN (vlan1 the default) with no changes to default settings. I've tripple-checked speed/duplex/portfast (enabled for troubleshooting convenience) and that the ports are enabled. Currently SH INT FA0/XX SW shows both ports in static access mode.

Am I missing something really obvious? Does anyone have anything I can try?

 

[greg5149]

You are using a cross connect cable I hope? With link lights
on I assume that you are. Does a reboot on the BB switch have any effect? Does Crisco...oops Cisco require more than one connection when running ISL? Try it in the standards based 802.3ad mode.
Greg5149