I have had no problem with discovery which was used on cdp basis so far.
Now the CDP packets do not arrive via new MPLS backbone network. I have to use the "ping sweep feature in IP range" feature. I had to enter more than 400 subnet from file before there are more than 400 branches. ( etc. 10.31-9.1-50.252 255.255.255.252 )
I have experienced two problems
1. The discovery never end ( now this is not important ) :-)
2. The common services -- device management shows discovered unknown devices whose ip addresses out side the range what are entered by me in the ping sweep range and theirs OID is not CISCO.
( 22.214.171.124.4.1.2001.1.1.1.1 , 126.96.36.199.188.8.131.52.3.9.1 , 184.108.40.206.4.1.674.10892.2 , 220.127.116.11.4.1.18318.104.22.168.22.214.171.124.2 and even more )
Due to more than 300 unknown devices the LMS device number is beyond the license number!!!!!
Why does lms add the unknown devices ( non cisco devices ) to the inventory ?
How could lms discover these devices ??? ) ( theirs IP are out of ping sweep range and non cdp capable devices )
Thanks in advance!
Depending on the discovery protocol (ping), LMS can still find some non-Cisco devices. However, since they are most likely unreachable they do not get added to DCR. That being said, what you are seeing is most likely CSCtb53468 which affects LMS 3.2. If you are on LMS 3.1, there is also a cumulative patch which would be helpful. I would suggest you open a TAC case to investigate this thoroughly and get patch.