Hi,
I have an interesting situation with several Cisco 1721 Routers at remote branches. All the Routers have a FastEthernet port and a typical ethernet port. The FastEthernet port is connected to a 100M/Full duplex Fiber line that comes into our Datacenter via a MAN(Cisco 3660). The FastEthernet is working with no trouble, but the ethernet0 card is generating tons of CRC input errors. I have 6 branches where this is the case. All 6 are running the same router with ethernet0 going directly into an HP Procurve 2524 Switch. All the ports on the switch are set to auto-negotiate and end up at 100M/Full Duplex. But this makes no sense to me since ethernet0 is set to 10M/Full Duplex. I am very confused. Please advise.
I have an interesting situation with several Cisco 1721 Routers at remote branches. All the Routers have a FastEthernet port and a typical ethernet port. The FastEthernet port is connected to a 100M/Full duplex Fiber line that comes into our Datacenter via a MAN(Cisco 3660). The FastEthernet is working with no trouble, but the ethernet0 card is generating tons of CRC input errors. I have 6 branches where this is the case. All 6 are running the same router with ethernet0 going directly into an HP Procurve 2524 Switch. All the ports on the switch are set to auto-negotiate and end up at 100M/Full Duplex. But this makes no sense to me since ethernet0 is set to 10M/Full Duplex. I am very confused. Please advise.