All MIBs › TIMETRA-PORT-MIB › tmnxPortEtherMTU
tmnxPortEtherMTU
Module: TIMETRA-PORT-MIB
OID (symbolic): TIMETRA-PORT-MIB::tmnxPortEtherMTU
OID (numeric): 1.3.6.1.4.1.6527.3.1.2.2.4.4.1.1
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-write
Description:
The size of the largest packet which can be sent/received on the Ethernet physical interface, specified in octets. For interfaces that are used for transmitting network datagrams, this is the size of the largest network datagram that can be sent on the interface.
Setting tmnxPortEtherMTU to a value of zero (0), causes the agent to recalculate the default MTU size which can vary based on the current setting of tmnxPortMode and tmnxPortEncapType variables. Some typical default values are: 1514 with mode access and encap-type null 1518 with mode access and encap-type dot1q 1518 with mode access and encap-type mpls 9198 with mode network
What is tmnxPortEtherMTU?
This object specifies the maximum transmission unit (MTU) size in bytes for an Ethernet physical interface, determining the largest packet that can be sent or received on that port. An operator can read the current MTU or write a new value to change packet size limits; setting it to zero triggers automatic recalculation based on the port's mode and encapsulation type. This is critical for ensuring compatible packet sizes across network links.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.6527.3.1.2.2.4.4.1.1 snmpwalk -v2c -c public <target> TIMETRA-PORT-MIB::tmnxPortEtherMTU
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.6527.3.1.2.2.4.4.1.1.1 snmpget -v2c -c public <target> TIMETRA-PORT-MIB::tmnxPortEtherMTU.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.6527.3.1.2.2.4.4.1.1.1 i <value>
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | BIANCA-BRICK-PPP-MIB |
| 1.3.6 | dod | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1 | internet | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4 | private | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4.1 | enterprises | ANIROOT-MIB |
| 1.3.6.1.4.1.6527 | timetra | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3 | timetraProducts | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1 | tmnxSRMIB | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1.2 | tmnxSRObjs | ALCATEL-IND1-TIMETRA-GLOBAL-MIB |
| 1.3.6.1.4.1.6527.3.1.2.2 | tmnxHwObjs | ALCATEL-IND1-TIMETRA-CHASSIS-MIB |
| 1.3.6.1.4.1.6527.3.1.2.2.4 | tmnxPortObjs | ALCATEL-IND1-TIMETRA-PORT-MIB |
| 1.3.6.1.4.1.6527.3.1.2.2.4.4 | tmnxPortEtherTable | ALCATEL-IND1-TIMETRA-PORT-MIB |
| 1.3.6.1.4.1.6527.3.1.2.2.4.4.1 | tmnxPortEtherEntry | ALCATEL-IND1-TIMETRA-PORT-MIB |
| 1.3.6.1.4.1.6527.3.1.2.2.4.4.1.1 | tmnxPortEtherMTU | TIMETRA-PORT-MIB |