Hello Xander, Thanks for the quick reply. We corrected RSV_ING_VPWS_INVALID_XID_DROP drops. The ones that are still  incrementing (and being reflected in the drops in the show interfaces) are the RSV_DROP_IPV4_DROP_NULL_RTE.We do have serveral routes...

Hello Xander, I have and ASR9006 with A9K-RSP-8G, an A9K-2T20GE-B and an A9K-MOD80-SE. We were using versión 4.3.4 and we upgraded it to 5.1.3. After we did it we started receiving the following errors in a port in the A9K-MOD80-SE:show drops np np1 ...

Hello, As a starting point I would recommend you to research about ITIL, specifically the ITIL Service Operation module (ITIL is a set of best practices for managing IT Services).  Regards,Luis

If you can connect via Console it would be the easiest way. Where you able to check the logs in the AAA server?