MTU setting won't take on TX2

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

I am attempting to set MTU size to 9000 on a TX2 and the following works:

sudo ifconfig eth0 mtu 9000 up

but when I change my /etc/network/interfaces.d/myconfig to:

auto eth0
iface eth0 inet static
  address 192.168.10.81
  netmask 255.255.255.0
  gateway 192.168.10.1
  mtu 9000

ifconfig before the command:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.81  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 00:04:4b:8d:34:a2  txqueuelen 1000  (Ethernet)
        RX packets 1255  bytes 178127 (178.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 683  bytes 187108 (187.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 40

and after:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
        inet 192.168.10.81  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 00:04:4b:8d:34:a2  txqueuelen 1000  (Ethernet)
        RX packets 1522  bytes 211713 (211.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 826  bytes 225817 (225.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 40

it just refuses to take the mtu 9000 in the interfaces file. I confirmed it is loading the interfaces file by changing the static IP back and forth and rebooting, but it won’t take the 9000. any thoughts?

2

This topic might help.

3

Thanks! That seems super silly but I suppose it is a solution.

4

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