Looking at an SNMP walk over 1.3.6.1.4.1.9.9.289.1.1.5.1.3 (enterprise.cisco.ciscoMgmt.ciscoFcFeMIB.ciscoFcFeObjects.cffFcFeConfig.fcIfFLoginTable.fcIfFLoginEntry.fcIfNxPortNodeName) on a CISCO FC switch, I'm seeing results of the form:
'1.3.6.1.4.1.9.9.289.1.1.5.1.3.x.[23].y' => '0xWWN',
Through some walking, I've determined that x is the switch port identifier used, for example, in 1.3.6.1.4.1.9.9.289.1.1.2.1.1. My question is: what are the [23] and y?
A full walk shows that y is only used in the fcIfFLoginTable, but I'd still like to know its significance, as it appears unique.