All MIBs › CISCO-TS-STACK-MIB › ciscoTsPortCfgMaxTransmitUnit
ciscoTsPortCfgMaxTransmitUnit
Module: CISCO-TS-STACK-MIB
OID (symbolic): CISCO-TS-STACK-MIB::ciscoTsPortCfgMaxTransmitUnit
OID (numeric): 1.3.6.1.4.1.9.5.32.4.1.1.11
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: MTU size. The valid values for this object are 1500, 4472, 8144 and 17800. The value specified cannot exceed the vtpVlanMTU (see Cisco VTP MIB) for the TrBRF that this port is a member of. Set requests for invalid values will be rejected with a 'badValue' error.
What is ciscoTsPortCfgMaxTransmitUnit?
This read-write INTEGER sets this port's MTU, restricted by the agent to exactly 1500, 4472, 8144, or 17800 bytes, and the description states it can't exceed the vtpVlanMTU configured for the port's TrBRF in the Cisco VTP MIB, any other value is rejected with a badValue error. An admin enabling large-frame Token Ring transfers would set this to 17800 to match end-station capability, but only after confirming the TrBRF-wide MTU ceiling in the VTP MIB permits it. Setting an unsupported value like 9000 here would simply be refused by the agent rather than silently rounded.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.5.32.4.1.1.11 snmpwalk -v2c -c public <target> CISCO-TS-STACK-MIB::ciscoTsPortCfgMaxTransmitUnit
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.5.32.4.1.1.11.1 snmpget -v2c -c public <target> CISCO-TS-STACK-MIB::ciscoTsPortCfgMaxTransmitUnit.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.9.5.32.4.1.1.11.1 i <value>
Start monitoring Cisco stackable terminal server (async port aggregation, legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-TS-STACK-MIB::ciscoTsPortCfgMaxTransmitUnit OID value, configure state conditions and alerts, and monitor any Cisco stackable terminal server (async port aggregation, legacy) from a single console.
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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.5 | workgroup | CISCO-ES-STACK-MIB |
| 1.3.6.1.4.1.9.5.32 | tsStack | CISCO-STACK-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.5.32.4 | ciscoTsPort | CISCO-TS-STACK-MIB |
| 1.3.6.1.4.1.9.5.32.4.1 | ciscoTsPortCfgTable | CISCO-TS-STACK-MIB |
| 1.3.6.1.4.1.9.5.32.4.1.1 | ciscoTsPortCfgEntry | CISCO-TS-STACK-MIB |
| 1.3.6.1.4.1.9.5.32.4.1.1.11 | ciscoTsPortCfgMaxTransmitUnit | CISCO-TS-STACK-MIB |