Re: [LARTC] Weighted packet shaping?

[Andy Furniss <andy.furniss@dsl.pipex.com>]

Mark Williams (MWP) wrote:
> Ok.
> 
> My Linux (which is connected to the ADLS modem) box runs HTTP, FTP, etc services and also runs bittorrent, edonkey,
> etc.
> I have two other PCs (both windows) which connect to the internet via the Linux
> box (MASQ).
> 
> Now, i want data like SSH, ICMP, DNS from any source to ppp0 to get top priority.
> I want the two windows PCs to get 2nd priority.
> I want services to get 3rd, and the rest (torrents, etc) to get the lowest
> priority.
> 
> I have this setup atm using HTB and SFQ.
> 
> Now this is what happens:
> I have bittorrent going as fast as possible outbound.
> I then use my linux box to send FTP data over the same link.
> 
> Im finding that packet shaping is splitting the outbound bandwidth (256kbit)
> equally between the two.
> 
> This is not what im after...  want the windows box to take more bandwidth off
> bittorrent than 50% like it is atm.
> 
> Does this explain my problem better?

Yes, you can do this with htb.

You'll need to back off a bit from 256kbit to allow for overheads - this 
is tweakable with patch Ed posted to the list - you could also shape 
incoming, but you would need IMQ which involves patching/doing new kernel.

For now try making a parent with rate and ceil 220kbit.
Have 4 child/leaf classes like - (assuming 1 is highest priority)

class 1 rate 120 ceil 220 prio 0
class 2 rate 50 ceil 220 prio 1
class 3 rate 25 ceil 220 prio 2
class 4 rate 25 ceil 220 prio 3

There are other tweaks you can try, it depends how much you care about 
latency. You could also share the windows boxes bandwidth by IP.

I don't do it quite like the above - so if it doesn't work, say and I'll 
think again.

Andy.

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