CM-IP-MIB :: cmIpv6InterfaceMTU

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCM-IP-MIBcmIpv6InterfaceMTU

cmIpv6InterfaceMTU

Module: CM-IP-MIB

OID (symbolic): CM-IP-MIB::cmIpv6InterfaceMTU

OID (numeric): 1.3.6.1.4.1.2544.1.12.11.1.6.1.1

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: This object describe the MTU for ipv6 address interface.

What is cmIpv6InterfaceMTU?

This read-write object sets the maximum transmission unit for IPv6 traffic on this interface, per its description. Admins tune this to prevent IPv6 packet fragmentation issues, especially relevant since IPv6 relies on path MTU discovery rather than in-network fragmentation. For example, if IPv6 traffic to a peer is being silently dropped due to an oversized MTU, an admin would lower this value to match the smallest MTU on the path.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.6.1.1
snmpwalk -v2c -c public <target> CM-IP-MIB::cmIpv6InterfaceMTU

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.6.1.1.1
snmpget -v2c -c public <target> CM-IP-MIB::cmIpv6InterfaceMTU.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.2544.1.12.11.1.6.1.1.1 i <value>

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OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.2544advaMIBADVA-MIB
1.3.6.1.4.1.2544.1productsADVA-MIB
1.3.6.1.4.1.2544.1.12fsp150cmADVA-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2544.1.12.11cmIPMIBCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1cmIpObjectsCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.6cmIpv6InterfaceTableCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.6.1cmIpv6InterfaceEntryCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.6.1.1cmIpv6InterfaceMTUCM-IP-MIB