RFC 2233 (IF-MIB)

The following tables, groups, and variables are supported in this MIB.

Table/Group Supported Variables Comments

IfNumber

ifTable

ifIndex

The ifIndex for ports is calculated as ((slot * 1000) + port). For VLANs, the ifIndex starts from 1000001.

ifDescr

ifType

Only the following values are supported:

{other, ethernetCsmacd, softwareLoopback, propVirtual}

ifMtu

ifSpeed

ifPhysAddress

ifAdminStatus

The testing state is not supported.

ifOperStatus

ifLastChange

ifInOctets

Updated every time SNMP queries this counter.

ifInUcastPkts

Updated every time SNMP queries this counter.

IfInNUcastPkts(deprecated)

Though deprecated, this object returns a value if the system keeps a count. Updated every time SNMP queries this counter.

ifInDiscards

No count is kept of this object, so it always returns 0.

ifInErrors

Updated every time SNMP queries this counter.

ifInUnknownProtos

No count is kept of this object, so it always returns 0.

ifOutOctets

Updated every time SNMP queries this counter.

ifOutUcastPkts

Updated every time SNMP queries this counter.

IfOutNUcastPkts(deprecated)

Though deprecated, this object returns a value if the system keeps a count. Updated every time SNMP queries this counter.

ifOutDiscards

No count is kept of this object, so it always returns 0.

ifOutErrors

Updated every time SNMP queries this counter.

IfOutQLen(deprecated)

Though deprecated, this object will returns a value if the system keeps a count. Updated every time SNMP queries this counter.

IfSpecific

Not implemented. Always returns iso.org.dod.internet.

ifXTable

All objects

Only port interfaces return non-zero values for the counter objects in this table.

The object ifPromiscuousMode is supported as read-only.

ifCounterDiscontinuityTime is not implemented.

All the statistics counters in the ifXTable are updated every time SNMP queries them.

ifStackTable

Not supported

IfTestTable

Not supported

ifRcvAddressTable

All objects

ifRcvAddressTable is supported as read-only. Also, only entries for physical ports appear in it.

snmpTraps

linkDown

linkUp