Trying to get cacti drawing graphs on our netapp, I downloaded NETWORK-APPLIANCE-MIB.mib from http://www.oidview.com/mibs/789/NETWORK-APPLIANCE-MIB.html and copied it into /usr/share/mibs/netsnmp/.
Stracing snmpwalk it looks like the file is successfully being read, but I'm still seeing OIDs and not names in my output.
$ snmpwalk -v 1 -c $community_string udp:$host_ip:161 .1.3.6.1.4.1.789.1.5.4.1.2
SNMPv2-SMI::enterprises.789.1.5.4.1.2.1 = STRING: "aggr0"
SNMPv2-SMI::enterprises.789.1.5.4.1.2.2 = STRING: "aggr0/.snapshot"
...etc
Any hints as to else what I need to do to match the MIB file up with the snmp stuff?