Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 21 Feb 2008 17:53:55 +0100 (CET)
From:      Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To:        Jim Flowers <jflowers@ezo.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ipfw pipe show
Message-ID:  <20080221173851.D2250@wojtek.tensor.gdynia.pl>
In-Reply-To: <20080221155416.M53150@ezo.net>
References:  <20080221155416.M53150@ezo.net>

next in thread | previous in thread | raw e-mail | index | archive | help
> answer but there is one thing that is still a puzzle.
>
> I have a pipe configured as:
>
> ipfw pipe 2 config bw 768Kbit/s queue 20Kbytes
>
> When I use `ipfw -s 4 pipe 2 show, one bucket is shown:
>
> 00002: 768.000 Kbit/s    0 ms  20 KB 1 queues (1 buckets) droptail
>    mask: 0x00 0x00000000/0x0000 -> 0x00000000/0x0000
> BKT Prot ___Source IP/port____ ____Dest. IP/port____ Tot_pkt/bytes Pkt/Byte Drp
>  0 tcp     12.###.##.77/80      88.###.##.175/2200  10565  8421549  0    0 103
>
> I understand that there is only one bucket but how are the source and
> destination ip addresses and ports chosen to be displayed from all that are

yes. use queues through this pipe for implementing smart traffic control 
(best of a kind i must say).

>
> While I'm at it this pipe has a 768 Kbps bw limit and is currently running at

what kind of traffic is it? single or lots of tcp connections? looks like 
a single connection

> less than 250 Kbps.  Why are packets still being dropped at the rate of about
> 1%, fairly consistently?

turn off the pipe and check the traffic again. it looks like your pipe is 
setup correctly.

are other rules ok?



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080221173851.D2250>