LMS auto discovery via CDP?

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Sep 5th, 2008
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Is there an option in LMS 2.6 to auto-discover adjacent devices using pre-set SNMP and/or logon creds?

This would cut down on the manual adding of new devices.

thanks

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Joe Clarke Fri, 09/05/2008 - 15:28
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CDP-based discovery is available in Campus Manager. You can configure it under Campus Manager > Admin > Device Discovery, and it can be started from Campus Manager > Home.


The only credential supported is the SNMP read-only credential. For default credentials are available in LMS 3.x.

js88888888 Fri, 09/05/2008 - 15:46
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Thanks much.

Will CM populate DCR with new devices? If I set up my seed devices, how does CM know which SNMP string to use?


Joe Clarke Fri, 09/05/2008 - 16:41
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Yes, CM will auto-populate DCR. When you configure discovery, you can specify the SNMP credentials to use in its sweep.

js88888888 Mon, 09/08/2008 - 10:23
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Just wanted to clarify the SNMP set up. I'm not seeing a specific snmp-only entry. I do see under SNMP where it wants a Target as well as SNMP string. I was under the impression the SNMP set up would be a generic use for all CDP neighbors type of set up without having to manually enter a target device?

Joe Clarke Mon, 09/08/2008 - 11:03
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You don't. If all of your devices use the same SNMP credentials, enter a target of *.*.*.*.

js88888888 Mon, 09/08/2008 - 12:09
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Thanks, I see it now. I have 3 *.*.*.* entries, the configured for our default string was not correct.

We have Enable Multiple Community Strings enabled so will using multiple *.*.*.* with different SNMP strings be OK w/ CM?

Joe Clarke Mon, 09/08/2008 - 12:17
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Yes, this will be fine.

js88888888 Mon, 09/08/2008 - 12:41
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Thanks Jclarke.

Last question, is DCR updated by the latest records both from CM and CS or does one trump the other?

Joe Clarke Mon, 09/08/2008 - 13:01
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Discovery will update the hostname, IP address, and optionally Display Name of any device which already exists in DCR. These values can then be changed manually, or via a bulk import. However, every time Discovery runs, it will update those properties again if it finds them to be different.

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