articles:portvlanid

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How to map port name from ifTable to a dot1QVLAN ID

THe following steps can be used to map an ifIndex to a dot1QVLAN ID. This helps with ISP customers of Trisul who also want to see the VLAN ID in the same table as the interface names.

  1. Retrieve the full dot1dBasePortTable (.1.3.6.1.2.1.17.1.4 ) - snmpwalk .17.1.4
  2. Lookup the ifIndex in the column dot1dBasePortIfIndex (.1.3.6.1.2.1.17.1.4.1.2) and locate the table index dot1dBasePort(.1.3.6.1.2.1.17.1.4.1.1)
  3. Retrieve the full dot1qPortVlanTable(.1.3.6.1.2.1.17.7.1.4.5) snmpwalk 17.1.4.1.1
  4. Lookup the dot1dBasePort from step 2 as the index and get the dot1qPvid (.1.3.6.1.2.1.17.7.1.4.5.1.1).
  5. This is the VLANID for the ifIndex
articles/portvlanid.1619005043.txt.gz · Last modified: 2021/04/21 17:07 by veera