I'm having a very strange problem with one 7301 router. It has 2 POS interfaces.
From time to time the output queue of one of them starts filling up. As soon as this happens, the interface goes down (3 keepalives are lost). After a few seconds once the output queue has been emptied, the interface goes up again. This continues until the router is rebooted.
Can somebody tell me what might be the problem. I assume this is hardware related issue. The IOS has already been updated with the newest 12.4T version.
Thanks in advance!