Platforms: AX platform
Versions: 5.7.0 and above
The new firmware release introduces support for an increased Ethernet MTU. An increased MTU value of up to 9600 bytes is now supported across ePTP, WLR driver modes. TDD and TDD-PTP driver mode will support MTU 9600 in the next release.
Device Configuration
To configure MTU 9600 on the device, set the value of 9600 in the dedicated field within the Ethernet port settings of Network configuration. After applying the changes, reboot the device for the new MTU setting to take effect.
GUI >> Configuration >> Network >> Ethernet port
Configure in CLI:
config set networkBridgeMTU “9600”
config commit
Reboot the device to take effect.
cnMaestro Template
{
"device_props": {
"networkBridgeMTU": "9600"
}
}
SNMP MIB Object
networkBridgeMTU OBJECT-TYPE
SYNTAX Integer32 (576..9608)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Device Bridge MTU size
For 802.11n devices maximum value is 1700 and default is 1500"
::= { networkBridge 6 }
Get
$ snmpget -v2c -c public123 169.254.1.1 .1.3.6.1.4.1.17713.21.3.4.7.6.0
Set
$ snmpset -v2c -c private123 169.254.1.1 .1.3.6.1.4.1.17713.21.3.4.7.6.0 i 9600
Compatibility consideration
Increasing MTU sizes requires proper configuration and support across all network devices and components within a network segment. Incompatible or misconfigured MTU settings can lead to fragmentation, packet loss, or interoperability issues.