[LARTC] leaky bucket on bursty multicast

[Andy Furniss]

Oivind wrote:
> On 3/1/06, Andy Furniss <andy.furniss at dsl.pipex.com> wrote:
> 
>>Oivind wrote:
>>
>>>Hi all,
>>>I have an average 2mbit multicast stream that once in a while bursts
>>>high (up to 20mbit/s) in short periods (about 200ms). Could anyone
>>>please help me with directions using tc for configuing leaky bucket
>>>shaping to this stream? I have a 5mbit/s ceiling.
>>>
>>>My system is running gentoo linux 2.6.14, and I have compiled in all
>>>QoS modules.
>>
>>I suppose it depends what you want to do with the burst ie. propogate it
>>,smooth it without loss or drop packets to maintain  a rate.
> 
> 
> I would like to smooth the bursts out at the ceiling bandwidth without
> any packet drops (unless an unacceptable lengthy burst of course).

Sorry for not replying earlier, I lost this one.

What you want should be OK with htb/tbf/hfsc ratelimiting at 5meg - just 
choose a leaf queue/buffer length that can absorb the burst.

Andy.