CDP Topology not discovered on Cisco Nexus devices
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Mark Mahacek February 6, 2019 at 12:47 AM
I don't know when this got fixed or how, but topology maps appear to be bringing in CDP from my Nexus switches now.
Mark Mahacek December 20, 2017 at 5:42 PM
Found possible issue - Some devices are not reporting all OIDs listed by Enlinkd documentation. Specifically on one of our core switches: cdpInterfaceName .1.3.6.1.4.1.9.9.23.1.1.1.1.6
Mark Mahacek December 12, 2017 at 10:27 PM
Take a look at nodes "snelling-mdf-2851" and "snelling-mdf-3750". Enlinkd shows CDP info of the specific ports that are connected to each other, with links to the associated interface, but they are not linked on the topology map.
Markus von Rüden December 7, 2017 at 1:18 PM
I imported the database and when looking at the node Cooper_ITS-MDF-2960X-5 I can see links beeing detected by enlinkd:
can you please take a look at this?
Mark Mahacek November 29, 2017 at 4:57 PM
Notes on the attached BrokenTopolgy.png image.
All of the Cooper switches (IDF) shown should connect to each of the 9500s (MDF) in the middle. Looking at the Enlinkd CDP table for each device, the two 9500 switches show all the IDF switches with links to their matching interfaces. From the IDF switch side, Enlinkd CDP table shows links to the MDF switches, and shows the remote site interface, however there is no link to the remote site interface. The topology links are missing since Enlinkd is not able to match the specific interfaces on each site. Running "show cdp neighbor" on the switches returns the proper switch/port info for the far side, and OpenNMS is collecting SNMP data on all the associated interfaces.
Starting with the upgrade from 20.x to 21.0.0, my topology map is not listing all nodes. When going to the detailed link info for a node, there are lots of records in the bridge mapping and CDP device tables, and I can match devices showing the reciprocal links to each other. However, the topology map only shows two connected devices, even with the detail level cranked up to five. This issue persists with version 21.0.1.
I tried removing all my nodes and importing from requisition. The links show up in the details, but are still missing from topology view.