I have a 7500 series router with a ds3 card and the fastethernet, the ds3 is unchannelized t3 of bandwidth and has no IP address so only the ethernet has the IP. I am using Solarwinds to monitor the snmp on both the 7500 and the switch it is connected to. Here is the problem I experience choppy internet on that provider when connecting through it. I assumed it was the provider but the snmp polls show me massive IO errors on the interface FastEthnet and not the Serial Connection (DS3), when looking at the port on the switch side it show little to no errors (about 50K on the 7500, and about 10 on the switch side). So I am back to square one kinda. THe only thing I can see is that almost ALL of the errors are transmit and none are recieve. Any thoughts to further debug this? I have already done the obvious like switching cables and ethernet ports, but the issue still persists....is there a debugging method on the switch or 7500 to see more detailed info about the failures?