IP-MIB :: ipIfStatsOutFragFails

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsIP-MIBipIfStatsOutFragFails

ipIfStatsOutFragFails

Module: IP-MIB

OID (symbolic): IP-MIB::ipIfStatsOutFragFails

OID (numeric): 1.3.6.1.2.1.4.31.3.1.28

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of IP datagrams that have been discarded because they needed to be fragmented but could not be. This includes IPv4 packets that have the DF bit set and IPv6 packets that are being forwarded and exceed the outgoing link MTU.

When tracking interface statistics, the counter of the outgoing interface is incremented for an unsuccessfully fragmented datagram.

Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ipIfStatsDiscontinuityTime.

What is ipIfStatsOutFragFails?

The number of IP datagrams discarded on this specific interface because they needed fragmentation but couldn't be fragmented -- e.g. IPv4 packets with the Don't Fragment bit set, or forwarded IPv6 packets exceeding the outgoing link MTU.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.4.31.3.1.28
snmpwalk -v2c -c public <target> IP-MIB::ipIfStatsOutFragFails

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.4.31.3.1.28.1
snmpget -v2c -c public <target> IP-MIB::ipIfStatsOutFragFails.1

Start monitoring Vendor-neutral IETF standard, RFC 4293 (any IP-capable device) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IP-MIB::ipIfStatsOutFragFails OID value, configure state conditions and alerts, and monitor any Vendor-neutral IETF standard, RFC 4293 (any IP-capable device) from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.4ipCHECKPOINT-MIB-2
Numeric OIDNameModule
1.3.6.1.2.1.4.31ipTrafficStatsIP-MIB
1.3.6.1.2.1.4.31.3ipIfStatsTableIP-MIB
1.3.6.1.2.1.4.31.3.1ipIfStatsEntryIP-MIB
1.3.6.1.2.1.4.31.3.1.28ipIfStatsOutFragFailsIP-MIB