All MIBs › CM-IP-MIB › ipManagementTunnelMTU
ipManagementTunnelMTU
Module: CM-IP-MIB
OID (symbolic): CM-IP-MIB::ipManagementTunnelMTU
OID (numeric): 1.3.6.1.4.1.2544.1.12.11.1.5.1.5
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: This provides the MTU of the Management Tunnel.
What is ipManagementTunnelMTU?
This read-write object sets the maximum transmission unit for traffic carried over this Management Tunnel, per its description. Admins tune this to avoid fragmentation of management traffic, especially important since a tunnel may add encapsulation overhead compared to the underlying interface's MTU. For example, if adding VLAN tagging pushes the tunnel's effective payload past the underlying link's MTU, an admin would lower this value to prevent packet fragmentation or drops.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.5.1.5 snmpwalk -v2c -c public <target> CM-IP-MIB::ipManagementTunnelMTU
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.5.1.5.1 snmpget -v2c -c public <target> CM-IP-MIB::ipManagementTunnelMTU.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.2544.1.12.11.1.5.1.5.1 i <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> ipManagementTunnelMTU.1
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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 |
| 1.3.6.1.4.1.2544.1.12.11.1.5 | ipManagementTunnelTable | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1.5.1 | ipManagementTunnelEntry | CM-IP-MIB |
| 1.3.6.1.4.1.2544.1.12.11.1.5.1.5 | ipManagementTunnelMTU | CM-IP-MIB |