[LARTC] What determines DROP versus delay ("BACKLOG")?

[LARTC] What determines DROP versus delay ("BACKLOG")?

[gypsy]

HTB:

class htb 1:40 parent 1:1 leaf 40: prio 3 rate 358Kbit ceil 529Kbit \
burst 6Kb cburst 2260b
 Sent 145871726 bytes 97293 pkts (dropped 69, overlimits 0)
 rate 56741bit 37pps backlog 23p
 lended: 77429 borrowed: 19841 giants: 0

I would like to increase "backlog" because I think that would decrease
"dropped".  23 packets of 1500 bytes each is only 34,500 bytes.  IMO,
there could be up to 64K bytes.

1) What determines backlog?
2) How can it be altered?
3) Am I on the right track here?

gypsy
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Re: [LARTC] What determines DROP versus delay ("BACKLOG")?

[Stef Coene]

On Saturday 06 November 2004 20:48, gypsy wrote:
> HTB:
>
> class htb 1:40 parent 1:1 leaf 40: prio 3 rate 358Kbit ceil 529Kbit \
> burst 6Kb cburst 2260b
>  Sent 145871726 bytes 97293 pkts (dropped 69, overlimits 0)
>  rate 56741bit 37pps backlog 23p
>  lended: 77429 borrowed: 19841 giants: 0
>
> I would like to increase "backlog" because I think that would decrease
> "dropped".  23 packets of 1500 bytes each is only 34,500 bytes.  IMO,
> there could be up to 64K bytes.
>
> 1) What determines backlog?
I'm not sure, but backlog means packets i nthe queue ready to send.  You need 
backlog so htb can work.  Backlogs means there are enough packets for htb to 
work.

> 2) How can it be altered?
I't can't.

> 3) Am I on the right track here?
I'm afraid not.

Stef

-- 
stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
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Re: [LARTC] What determines DROP versus delay ("BACKLOG")?

[Andy Furniss]

gypsy wrote:
> HTB:
> 
> class htb 1:40 parent 1:1 leaf 40: prio 3 rate 358Kbit ceil 529Kbit \
> burst 6Kb cburst 2260b
>  Sent 145871726 bytes 97293 pkts (dropped 69, overlimits 0)
>  rate 56741bit 37pps backlog 23p
>  lended: 77429 borrowed: 19841 giants: 0
> 
> I would like to increase "backlog" because I think that would decrease
> "dropped".  23 packets of 1500 bytes each is only 34,500 bytes.  IMO,
> there could be up to 64K bytes.
> 
> 1) What determines backlog?
> 2) How can it be altered?

If you add a queue say bfifo - you can choose the length.


> 3) Am I on the right track here?
> 
> gypsy
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
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> 


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