multicast rate

[Bernhard Schmidt]

On Fri, Mar 12, 2010 at 05:07:09PM +0800, jiani1012 wrote:
> Hi,all
> 
> Based on Freebsd8.0,the multicast frames are transmited at a fixed rate 1Mbps. I want to change the fixed rate to self-adaptive rate like unicast. 
> 
> I change the multicast path to unicast in if_ath.c of ath code,but still fail.Should I change the rate control algorithm? What changes I must do? Can you give me some advise,ideas? 

ifconfig <iface> mcastrate <rate> isn't an option?

-- 
Bernhard