Layer 2 Map Troubleshooting

Layer 2 Map Troubleshooting

Make sure DB Query is enabled under Settings->System Settings->General.
Once it is enabled, click on the support icon on the top right corner->DB Query, execute the below queries one by one, make sure all pages are selected at the bottom center of the page and save the output in .csv format and send it to OpManager support.
  • Get the MAPID from LAYER2CONFIGURATION table (Select MAPID from LAYER2CONFIGURATION WHERE MAPNAME=<'MAPNAME'>
  • Select * from LAYER2CONFIGURATION
  • Select * from LAYER2SUBNETCONFIGURATION WHERE MAPID=<MAPID>
  • Select * from LAYER2DEVICEPROPS WHERE MAPID=<MAPID>
  • Select * from LAYER2MAPPING WHERE MAPID=<MAPID>
  • Select * from LAYER2ROUTINGTABLE  WHERE MAPID=<MAPID>
  • Select * from ROUTERINTERFACETABLE WHERE MAPID=<MAPID>
  • Select * from ROUTERARPCACHE WHERE MAPID=<MAPID>
  • Select * from SWITCHARPCACHE WHERE MAPID=<MAPID>
  • Select * from DTPFDBTABLE WHERE MAPID=<MAPID>
  • Select * from CDPCACHE WHERE MAPID=<MAPID>
  • Select * from LLDPCACHE WHERE MAPID=<MAPID>
  • And, screen shot for the Discovery Page and Map page.
  • Debug enabled logs folder
  • MibBrowser output of the below oids for the devices which are not showing proper connection details in map.
Please click on Settings->Tools -> Mib Browser, select the seed device and its SNMP community, copy and paste the below OID's one by one, click on GET and send us the screenshot of the output.
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List of OIDs used for Layer2 Discovery :

BRIDGE-MIB :
  • .1.3.6.1.2.1.17.4.3.1.1 
  • .1.3.6.1.2.1.17.4.3.1.2 
  • .1.3.6.1.2.1.17.4.3.1.3 
  • .1.3.6.1.2.1.17.1.4.1.1
  • .1.3.6.1.2.1.17.1.4.1.2 
RFC1213.MIB (NetToMediaTable) 
  • .1.3.6.1.2.1.4.22.1.1 
  • .1.3.6.1.2.1.4.22.1.2 
  • .1.3.6.1.2.1.4.22.1.3 
  • .1.3.6.1.2.1.4.22.1.4
RFC1213 (IPRouteTable) 
  • .1.3.6.1.2.1.4.21.1.1 
  • .1.3.6.1.2.1.4.21.1.2 
  • .1.3.6.1.2.1.4.21.1.7 
  • .1.3.6.1.2.1.4.21.1.8 
  • .1.3.6.1.2.1.4.21.1.11
CISCO-CDP.MIB (CDP) - MIB files attached
  • .1.3.6.1.4.1.9.9.23.1.2.1.1.4 
  • .1.3.6.1.4.1.9.9.23.1.2.1.1.7 
  • .1.3.6.1.4.1.9.9.23.1.2.1.1.9 
LLDP.MIB(LLDP)
  • .1.0.8802.1.1.2.1.4.1.1.4
  • .1.0.8802.1.1.2.1.4.1.1.5
  • .1.0.8802.1.1.2.1.4.1.1.8
  • .1.0.8802.1.1.2.1.4.1.1.9
  • .1.0.8802.1.1.2.1.4.1.1.12
  • .1.0.8802.1.1.2.1.4.2.1.2
  • .1.0.8802.1.1.2.1.4.2.1.3
IF-MIB :
  • ifIndex - .1.3.6.1.2.1.2.2.1.1
  • ifName - .1.3.6.1.2.1.31.1.1.1.1
Router Discovery Algorithm:
 WebNms algorithm used:
  • "ipForwarding" of the device must be set to 1 - .1.3.6.1.2.1.4.1.0
  • Object must have two or more interfaces. - .1.3.6.1.2.1.4.20.1.1
Switch Discovery Algorithm:
  • Bridge mib OIDs should respond.

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