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New Member

Duplicate Devices In LMS 3.2

Hi There.

I have trolled this forum, and I find issues with LMS 3.1 and Duplicate devices and the engineers say that it is fixed in LMS 3.2, but I have a customer who is experiencing this with LMS 3.2 below is the customers request:

This has now been the 3rd week in a row that after the XXXXX discovery we

ended up with duplications.

I have looked at a few and most are due to 2 or more ip addrs defined on te

device.

The example here are the RCC MSFCs which we manage via VLAN50 ip and the source

is set to VLAN50 on the device but LMS also discovers it via a loopback addr.

It is causing us hassles with max limit on LMS system as well as having

duplications on reports.

Please could you give me some advice.

Joan

9 REPLIES
Cisco Employee

Re: Duplicate Devices In LMS 3.2

Make sure that LMS can poll the ipAddrTable on these devices. That is required for the duplicate resolution algorithm to work. also, make sure that the correct preferred management address method is chosen. If the customer has chosen Use Loopback, but they don't want that, then consider using one of the other two options.

New Member

Re: Duplicate Devices In LMS 3.2

Hi Joe

Forgive my ignorance, but how do I poll the ipAddrTable ?

Cisco Employee

Re: Duplicate Devices In LMS 3.2

Use the Device Center SNMP Walk tool to poll the starting OID of ipAddrTable.

New Member

Re: Duplicate Devices In LMS 3.2

Ok ran the walk, and it can be read by one of the devices showing up as a duplicate, below is a short extract, should you require the whole walk, ill be happy to post it

The following is a SNMP walk of device 10.111.1.2 starting from .1.3.6.1.2.1.4.20

SNMP Walk Output

--------------------------------------------------------------------------------

.1.3.6.1.2.1.4.20

RFC1213-MIB::ipAdEntAddr.10.10.10.10 = IpAddress: 10.10.10.10

RFC1213-MIB::ipAdEntAddr.10.111.0.0 = IpAddress: 10.111.0.0

RFC1213-MIB::ipAdEntAddr.10.111.0.4 = IpAddress: 10.111.0.4

RFC1213-MIB::ipAdEntAddr.10.111.0.16 = IpAddress: 10.111.0.16

RFC1213-MIB::ipAdEntAddr.10.111.0.75 = IpAddress: 10.111.0.75

Cisco Employee

Re: Duplicate Devices In LMS 3.2

I would need to see the complete walk from a duplicated device as well as the entries in DCR for that device.

New Member

Re: Duplicate Devices In LMS 3.2

Attached, info you requested

Cisco Employee

Re: Duplicate Devices In LMS 3.2

There's only one device in this DCR export. How do the other duplicates show up?

New Member

Re: Duplicate Devices In LMS 3.2

Joe, attached is the issue Im faced with

Cisco Employee

Re: Duplicate Devices In LMS 3.2

It doesn't look like the SNMP Walk output you provided is from this same device. I need the walk output, and duplicate information from the same device.

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