The reason for asking is that we are running a release which we're quite sure has a bug (it produces input errors at the sub-interfaces at the 6500 and remote routers). We have found a workaround and the issue is investigated by tac at the moment. I would like to hear if somebody have seen this issue at other ios releases or other plattforms (7200,7500).
The 6500 is running native ios, 12.1.11bE4.