1 of 1 people found this helpful
We had a similar issue on one of our Cat6500s. Data was coming into the chassis via 10G fiber. The 100Mb connection to a remote site was showing a very high number of output drops.
Our suspicion was that the output buffers of the 100Mb line card were being overrun. Changing out the 10/100Mb linecard for a 1000/100/10Mb linecard made a HUGE difference even though the link stayed at 100Mb. The customers even remarked how much better everything seemed: they thought we increased their bandwidth.
Since your issue sounds like it happens when large amounts of data are being transferred it could be from a similar root cause.
Thanks for the information I will start that discussion with the server team this morning.