VRF Changes Everything

We recently deployed VRF groups on our core switches and there are a few key changes to troubleshooting/configuration.
Standard way: ping
w/ VRFs: ping vrf NAME (where NAME is the name of the vrf group)

Standard way: traceroute
w/ VRFs: traceroute /vrf NAME

If you are trying to make a connection to a destination that resides in a VRF from the core switches you will most likely have to include some sort of VRF tagging.  This even applies to services like RADIUS, NTP, DHCP Relay, and TACACS.

Networking switch Cisco