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December 22nd, 2020 22:00

Dell OS10 changing MTU size on routed port has no effect

On dell routed interface I have configured mtu size as 9214 but still mtu is shown as 1532. So can we change mtu if the interface is routed/L3 interface ?

interface ethernet1/1/44:1

no shutdown

channel-group 100 mode active

no switchport

mtu 9214

 

show interface ethernet1/1/44:1

Ethernet 1/1/44:1 is up, line protocol is up

Port is part of Port-channel 100

Hardware is Eth, address is 0c:29:ef:c3:45:4c

    Current address is 0c:29:ef:c3:45:4c

Pluggable media present, SFP+ type is SFP+ 10GBASE-SR

    Wavelength is 850

    Receive power reading is -2.423763 dBm

Interface index is 63

Internet address is not set

Mode of IPv4 Address Assignment: not set

Interface IPv6 oper status: Disabled

MTU 1532 bytes, IP MTU 1500 bytes

3 Apprentice

 • 

73 Posts

December 23rd, 2020 06:00

Hi,

this interface is in L2 mode (no IP address assigned) and part of a port-channel.

Please adjust the MTU on the po100 and VLAN interface you are using for routing to 9216 (L2 MTU).

Regards,

Tim

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