All MIBs › CM-IP-MIB › cmIpv6InterfaceMTU
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 OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.2544 | advaMIB | ADVA-MIB |
| 1.3.6.1.4.1.2544.1 | products | ADVA-MIB |
| 1.3.6.1.4.1.2544.1.12 | fsp150cm | ADVA-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2544.1.12.11 | cmIPMIB | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1 | cmIpObjects | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1.6 | cmIpv6InterfaceTable | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1.6.1 | cmIpv6InterfaceEntry | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1.6.1.1 | cmIpv6InterfaceMTU | CM-IP-MIB |