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DPapi1
Beginner
2,195 Views

ixgbe SFP+ 82599ES mtu higher than 1500 ERROR

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Hello

I have an Intel server with Ubuntu 16.04.2

02:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)

02:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)

I am unable to set mtu to a value higher than 1500, the error I get is:

SIOCSIFMTU: Invalid argument

I have downloaded and installed driver 4.6.4 and 5.0.4 and both DO NOT WORK

I have kernel

4.8.0-49-generic # 52~16.04.1-Ubuntu SMP Thu Apr 20 10:55:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

I have tried issuing the following commands:

ethtool -K eno4 rx-vlan-filter off

ethtool -K eno3 rxvlan off

ethtool -K eno3 txvlan off

But still cannot set the mtu to a different value.

Can anybody help?

Thanks

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1 Solution
idata
Community Manager
478 Views

Hi Dadopap,

 

 

Have you tried enable the jumbo frame support?

 

 

As extracted from the websiteJumbo Frames support is enabled by changing the MTU to a value larger than the default of 1500. The maximum value for the MTU is 16110. Use the ip command to increase the MTU size. For example: ip link set dev ethx mtu 9000 The maximum MTU setting for Jumbo Frames is 9710. This value coincides with the maximum Jumbo Frames size of 9728. https://www.kernel.org/doc/Documentation/networking/ixgbe.txt

 

 

Thanks,

 

wb

 

View solution in original post

3 Replies
idata
Community Manager
478 Views

Hi Dadopap,

 

 

Thank you for the post. Let me check on this.

 

 

Rgds,

 

wb

 

idata
Community Manager
479 Views

Hi Dadopap,

 

 

Have you tried enable the jumbo frame support?

 

 

As extracted from the websiteJumbo Frames support is enabled by changing the MTU to a value larger than the default of 1500. The maximum value for the MTU is 16110. Use the ip command to increase the MTU size. For example: ip link set dev ethx mtu 9000 The maximum MTU setting for Jumbo Frames is 9710. This value coincides with the maximum Jumbo Frames size of 9728. https://www.kernel.org/doc/Documentation/networking/ixgbe.txt

 

 

Thanks,

 

wb

 

View solution in original post

idata
Community Manager
478 Views

Hi Dadopap,

 

 

Please feel free to update me if further assistance needed.

 

 

rgds,

 

wb

 

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