Imagine I have a 2950 switch. Switch is connected via port fa0/48 to 3750 Layer 3.
On 2950switch, switchportports fa0/10, switchport access vlan 100. A host is connected to that port and I can ping it OK.
Then technician attemtpts to connect same functional host to ports fa0/11 or fa0/12 or fa0/13 on 2950switch and then host does not communicate (ping times out) when it is connected to any of those ports. Such switchports are configured with identical VLANs settings, duplex, etc.
Any ideas on what could be wrong here? I thought that it could be unlikely all three ports fa0/11-fa0/13 went bad on that 2950switch...
I see egress traffic but no ingress traffic. I suspect a bad cable. Are you using the same cable while moving from one switchport to another?
Is the device connecting directly to the switch or going via some kind of patch panel?
(config)#default interface f0/11
(config)#switchport mode access
(config)#switchport access vlan 100