I have installed to my customer an gigastack deployed to four Catalyst.
Two catalyst 3548 with software 12.0.5.3WC , one Catalyst 3524 with software 12.0.5XU and one Catalyst 3550 with 12.1.11E1.
Because I see a lot of collisions on each ports gigabit in stack,
should be I upgrade Catalyst at the same image(3548 and 3524 of course)?
or perhaps I could be have an a hardware problem.
NOTE:
On a port fastethernet 0/37 of a 3548 Customer has connected an AS 400
which has speed 100 and full duplex but it doesn't autonegotiation.
On switch I see on "sh interface fast 0/37" half duplex and 100 Megabit and lot of
collision . Every 30 second LINK-4-ERROR: FastEthernet 0/37 experiencing
errors.
Have to I fix on configuration duplex mode on fastehernet 0/37?
Can It affects my problem of collision on Gigastack ?
Thanks
Lorenzo