[c-nsp] SNMP for VRF [Lite] ?

[Jeff Kell]

Is there a quick way to determine if a switch has VRFs enabled via SNMP?

We have some network monitoring/manipulation procedures that get 
"broken" when VRFs are enabled.  Logging into the CLI and doing a 'show 
ip vrf' does the trick, but I am looking for a lightweight SNMP-able 
variable I can pull from a generic switch (at least down to a 3550) as 
opposed to the more elaborate MPLS MIBs for the higher-end routers.

Jeff