I have 2610xm with a fastethernet interface ,i just set on this interface no shut command , but this port is working after some times it would be down with this message :FastEthernet0/0 line protocol is down , but in sho interface f0/0 the interface is up just line protpcol is down.
Try another cable, preferably a commercially made cable.
If the cable is bad (kinked, crushed, twisted, stretched, has exposed wires behind the conector ...), or poorly terminated (bad pair order, lost twist, exposed wires behind the connector, incomplete IDC ....) it can cause these kind of symptoms.
For example: Does it seem to work at 10 meg OK? Maybe work with 100 half? Dies at 100 full duplex?
These would usually be caused by a split pair on pins 3 & 6 ... meaning that the connectors are (usually) terminated with the wrong pair order (pair, pair, pair, pair instead of EIA/TIA 568a or 568b).
Try another known good cable. See if the problem goes away of changes.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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