EDM is indeed just used for single switch management. I am a CLI guy so pretty much the only time I use it is when I am trying to run down a MIB. I generally run it against a GNS3 VOSS image so I can disable HTTPS and sniff the HTTP connection.
I am going to assume that you are using VRRP v3 as 1.3.6.1.4.1.2272.1.73 does work for v2. For v3 use rcVrrpv3 (1.3.6.1.4.1.2272.1.206)My trick to finding mibs is to take a wireshark trace of an EDM session and then look through the payload. You w...