ISSUE: Topology data is missing; whether IP, MAC, Hostname or VLAN data.
PURPOSE: Guide to walk through a methodical way of identifying the issue and resolving the problem
Products this Guide will address:
Phase 1: Configuring Devices for SNMP
Determine the SNMP version configuration for devices
Vendor SNMP Configuration Examples (may vary by model series)
Note: <communitystring> use your own community string. Do not use @ # in the community string.
Note: It is required to set the community string with any nonexisting or existing group name to be able for SNMPv1/v2c to work
Phase 2: Identify what information is present/missing from devices
Note: Regardless of the Solarwinds Products used for topology, they all reference the same data, so identifying what is missing vs present is key in resolving the issue quickly.
Order of Operations: Order of identifying the issue for devices. If anything is missing in the previous step, no data will be in the next.
Phase 3: Troubleshooting
Troubleshooting with Solarwinds Engineer's Toolset
Note: When Troubleshooting via this tool, we focus on the Switch and the Router to make sure all data is available.
Troubleshooting with User Device Tracker
Note: This is a striped down guide from the following KB: http://knowledgebase.solarwinds.com/kb/questions/4753/User+Device+Tracker+Compatibility+Checker
This tester is more to see if the pollers can get the data. Switch Port Mapper Troubleshooting is more comprehensive and walks through re-configurations.
Note: This is a successful scan of a working switch checking for Layer 2.
Example of Correctly Configured Layer 3
If you are see any Red Xs, please check the SNMP configuration, or go into the Toolset Troubleshooting area of this document.
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