Subject: Re: [PATCH 1/2]: [NET_SCHED]: Make all rate based scheduler work with TSO.

From: Patrick McHardy <[email-masked]>
Date: Tue, 04 Sep 2007 18:23:26 +0200

Bill Fink wrote:
> On Sat, 1 Sep 2007, Jesper Dangaard Brouer wrote:
>
>>On Sat, 1 Sep 2007, Patrick McHardy wrote:
>>
>>>
>>>It still won't work properly with TSO (TBF for example already drops
>>>oversized packets during ->enqueue), but its a good cleanup anyway.
>>
>>Then lets call it a cleanup of the L2T macros.  In the next step we will 
>>fix the different schedulers, to use the ability to lookup larger sized 
>>packets. (I did notice the TBF scheduler would drop oversized packets).
> 
> 
> Hmmm.  I guess this is also why TBF doesn't seem to work with 9000 byte
> jumbo frames.
> 
> [root@lang4 ~]# tc qdisc add dev eth2 root tbf rate 2gbit buffer 5000000 limit 18000

Yes, you need to specify the MTU on the command line for
jumbo frames.