[CentOS] centos 6 and super jumbo frames

[Gordon Messmer]

On 11/09/2015 08:34 AM, Steve Clark wrote:
>
> Has anyone using CentOS 6 been able to successfully set an mtu larger 
> than 9710
> on an interface. 

Maximum frame size varies from implementation to implementation:
http://pages.uoregon.edu/joe/jumbo-clean-gear.html

It's also worth noting that that due to offloading features in modern 
NICs, there's often very little benefit to large frames. Since you 
*really* need all of the devices on any network segment to use the same 
MTU, the best option might be to eliminate jumbo frames (and test the 
impact of doing so in terms of throughput and CPU utilization).