[CentOS] centos 6 and super jumbo frames

Mon Nov 9 19:51:24 UTC 2015
John R Pierce <pierce at hogranch.com>

On 11/9/2015 9:57 AM, Steve Clark wrote:
> The real issue relates to doing pcap on an interface that is
> hooked to a span port. The super jumbo frames cause 
> rx_long_length_errors: 2701813
> which show up in our monitoring software and the customer thinks there 
> are error on his
> network.
> So I wanted to increase the mtu on the interface so these errors would 
> not be reported.

9K or so is the upper limit for MTU on most NIC cards, and many are less 
than that.   this is a hardware thing, has nothign to do with software.

john r pierce, recycling bits in santa cruz