Subject: Re: Why is LRO off by default on ixgbe?

From: Stephen Hemminger <[email-masked]>
Date: Wed, 23 Sep 2009 09:53:56 -0700

On Wed, 23 Sep 2009 09:29:59 -0700
Ben Greear <[email-masked]> wrote:

> I just noticed that enabling LRO on ixgbe lets me reach about 9Gbps receive on two
> NICs concurrently in an NFS test, where I was only getting about 6Gbps w/out it (1500 MTU).
> 
> Why is LRO disabled by default?
> 
> Thanks,
> Ben

LRO is turned off if bridging or routing because of End to End requirements.