Hi LindsayHill,
Thanks for your response.
The switch is "L2 MANAGED SWITCH" (model name is "AT-IFS802-80").
IMC can get the device when use auto-discover, but unable to draw the correct topology.
I use "wireshock" to capture the packets during this time and do some analysis.
I found the switch didn't response some snmp request packets from IMC.
So I suspect that the switch does not support some mibs that cause unable to draw the correct Topography.
Expect Topography,
[ IMC server ] --------------[ Switch ]
Actual Topography(no line),
[ IMC server ] [ Switch ]
If you need other info, please give me response, thanks.
Thanks a lot.