03-23-2011 09:31 AM - edited 03-06-2019 04:13 PM
Hello!
One end:
WS-C2960-24TT-L 12.2(50)SE3 C2960-LANBASEK9-M
#sh run int fa 0/1:
interface FastEthernet0/1
description TEST
end
Other end:
Unknown cisco device, perhaps, ME series switch (3400 or so..):
#sh run int Fa0/1
interface FastEthernet0/1
description TEST
port-type eni
switchport access vlan 5
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
end
The problem:
When both ports are hardcoded to speed 100/duplex full - then they do not come up.
When they are set to auto (as shown in config) - they come up with 100/half-dup at both ends.
What could be the problem? Perhaps physical layer (bad line)? Or what?
Thanks in advance.
Alex
03-23-2011 10:08 AM
Have you tried a cross-over cable between the 2 switches?
03-23-2011 10:27 AM
100/half is the default setting for switchports which fail the auto-negotiation exchange, that indicates one side if failing to negotiate. What happens when you set the 2960 to auto, and the ME for 100/full?
03-31-2011 02:41 AM
Thanks to all.
There was a switch-in-the-middle.At least it was set to 100/full. So ports on end points were set.
It works now as it should.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: