LMS 3.2 can't Communicate with Devices

[Bethuelle]

Hi to all,

I have configured a series of switches so that they may communicate  with LMS 3.2. After running Device Discovery, some of these  switches

are said to be unreachable. What can be the cause of this.

Thanks for your prompt replies

[Nael Mohammad]

First of all see this document and review to ensure you are following the correct discovery steps:

https://supportforums.cisco.com/docs/DOC-9005

Most of the time the problem is devices are not SNMP reachable and filters in discovery settings could prevent reachablity.