I'm glad you like UDT!
It would be great if you could do the SNMP walk for switches Nexus 5020 and 6500 Sup720.
You could try download net-snmp library from here: http://www.net-snmp.org/download.html
snmpwalk -v 2c -c [communitystring] -O netU [ipaddress of device] 126.96.36.199.188.8.131.52 > [file to export results to, e.g. xxx.txt]
Replace items within the [ ] accordingly, removing the [ ] also. Notice the time the command takes to execute and forward result file to us (we can do this offline if you'd prefer).
What do you mean when you say "6500 Sup720 - does not work"? I have 7 6500 chassis, (6 6509's and 1 6513). I use a Sup720-3b, and UDT has no problems with them. It detected my CMM modules, Wireless Controllers, and the 3 different 10/100/1000 blades, as well as all my 10g ports.
Do you have "nodes" directly connected to the ehternet port on the Sup card?
Glad it works for you not so for me and I have the same Sup's you do. I think it might be a code difference. I am seeing the same thing on all my 4500's some work and some don't and the only difference between them is code level.
Petr I will do that and get it to you. I will run a 4500 thats works and one that does not as well.
Did you ever hear anything back about getting Nexus 5020s working with UDT? I have the same problem and wonder if its something i am doing wrong. It works great with everything else that i have checked so far, except for nodes that are on layer 2 or on VLAN's behind a firewall.
If you have any advice that would be great?