Netsight MAPS: LLDP, Summits and CISCOs

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Hello, everybody!

I've added several CISCOs (2960, 3650) and Summits (X430, X440) to Netsight MAPS.

All switches are "green" in Devices and connected by SNMP. LLDP is enabled everywhere. 

I can see from Summits and CISCO each other with show lldp neighbors in details.

But the links don't appear in Maps. All tlvs are enables everywhere, even per links on CISCOs.

Core CISCO is 3650: "Cisco IOS Software, IOS-XE Software, Catalyst L3 \                       Switch Software (CAT3K_CAA-UNIVERSALK9-M), Versio\
                           n 03.07.02E RELEASE SOFTWARE (fc1)"

What most likely could be the problem?

Many thanks in advance,
Ilya
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Ilya Semenov

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Posted 12 months ago

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Tim O'Donnell

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Make sure CDP/EDP is enabled.  LLDP is more for phone discovery.
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Ilya Semenov

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Well.... It seemed to me that protocols should be the same from both sides. It would be difficult to enable EDP on CISCOs...)

It always worked with LLDP. I have been updatiing CISCOs to 15th IOS where LLDP is present and all work fine.
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Stefano Gamberini, Employee

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I have this problem today in Sweden. CIsco and Extreme 670,620. LLDP everywhere but links dont show up
 
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Stefano Gamberini, Employee

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latest version for EMC. Tomorrow I will debug what's going on
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Stefano Gamberini, Employee

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TO debug: tcpdump snmp to Cisco and extreme ( version 1 and 2), look in a network cache for LLDP details of switches, flex views for LLDP
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Ilya Semenov

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Hi, Stefano,

which CISCO do you have? Does it have IOS or IOS-XE?
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Bin, Employee

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Hello llya,

This symptom which your reported looks like the following article. 

LLDP/EDP Links between some devices are not seen in Maps
https://gtacknowledge.extremenetworks.com/articles/Solution/LLDP-EDP-Links-between-some-devices-are-...

What is your Netsight SW version ?


Best regards,
Bin
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Ilya Semenov

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Hi, Bin,

I have 7.1.1.9. I'll check your recommendation tomorrow.

Thanks.
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Stefano Gamberini, Employee

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It could be that after update something change on switch MIB so you should clear the CISCO switch from cache. 

Anyway try to check if LLDP enable all over.

- Go to Administratotion/Diagnostic
- Set level Advanced
- go to Network Monitor Cache
- delete Cache. 

this fix my issue

CORE SWITCH: Cisco 6500 here version 12.2(33)
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Ilya Semenov

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It didn't help.
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daniel.griffis

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Did you resolve your issue, I have had this issue in the past and was able to resolve. The easiest of the 2 instances I did the following.

Depending on your topagraphy, one switch not sending lldp could cause all devices connected to it not to show the link in maps. 

Log into your Cisco switches and into Enable mode.

Type : "show LLDP neighbors" hit enter.

If your do not get a correct list of the links on your cisco switch, clear LLDP  by turning LLDP off and on again.

Also check the LLDP times.
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Ilya Semenov

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Hi, daniel,

I haven't solved the issue yet. I'll try to do as you've said.

The problem is in CLI all the switches show correct information. Ciscos see Extremes, Extremes see Ciscos. 

Netsight sees links between Extremes only(

Thanks
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Francois Scheun

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Hi All

I'm having the same issue on HP switches. Has anyone come up with a solution yet? I have the HP MIB's imported and running XMC 8.1.2.x. Any info will be appreciated.

Regards.