From: Phillip Susi <psusi@cfl.rr.com>
To: Jesper Dangaard Brouer <hawk@comx.dk>
Cc: Stephen Hemminger <shemminger@osdl.org>,
Jamal Hadi Salim <hadi@cyberus.ca>,
netdev@vger.kernel.org, lartc@mailman.ds9a.nl,
russell-tcatm@stuart.id.au, hawk@diku.dk,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL
Date: Wed, 14 Jun 2006 10:27:13 -0400 [thread overview]
Message-ID: <44901CC1.60403@cfl.rr.com> (raw)
In-Reply-To: <1150278004.26181.35.camel@localhost.localdomain>
Jesper Dangaard Brouer wrote:
> The Linux traffic's control engine inaccurately calculates
> transmission times for packets sent over ADSL links. For
> some packet sizes the error rises to over 50%. This occurs
> because ADSL uses ATM as its link layer transport, and ATM
> transmits packets in fixed sized 53 byte cells.
>
I could have sworn that DSL uses its own framing protocol that is
similar to the frame/superframe structure of HDSL ( T1 ) lines and over
that you can run ATM or ethernet. Or is it typically ethernet -> ATM ->
HDSL?
In any case, why does the kernel care about the exact time that the IP
packet has been received and reassembled on the headend?
next prev parent reply other threads:[~2006-06-14 14:28 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-14 9:40 [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL Jesper Dangaard Brouer
2006-06-14 12:06 ` jamal
2006-06-14 12:55 ` Jesper Dangaard Brouer
2006-06-15 12:57 ` jamal
2006-06-15 13:16 ` jamal
2006-06-20 1:04 ` [LARTC] " Patrick McHardy
2006-06-20 1:04 ` Patrick McHardy
2006-06-20 14:59 ` jamal
2006-06-20 15:16 ` [LARTC] " Patrick McHardy
2006-06-20 15:16 ` Patrick McHardy
2006-06-21 12:21 ` Krzysztof Matusik
2006-06-21 12:54 ` Patrick McHardy
2006-06-21 14:33 ` Krzysztof Matusik
2006-06-14 15:32 ` [LARTC] " Andy Furniss
2006-06-14 15:32 ` Andy Furniss
2006-06-20 0:54 ` [LARTC] " Patrick McHardy
2006-06-20 0:54 ` Patrick McHardy
2006-06-20 14:56 ` jamal
2006-06-20 15:09 ` [LARTC] " Patrick McHardy
2006-06-20 15:09 ` Patrick McHardy
2006-06-22 18:41 ` jamal
2006-06-23 14:32 ` Patrick McHardy
2006-06-24 14:39 ` jamal
2006-06-26 11:21 ` Patrick McHardy
2006-06-27 13:01 ` jamal
2006-07-02 4:23 ` Patrick McHardy
2006-07-02 13:59 ` jamal
[not found] ` <1150287983.3246.27.camel@ras.pc.brisbane.lube>
[not found] ` <1150292693.5197.1.camel@jzny2>
[not found] ` <1150843471.17455.2.camel@ras.pc.brisbane.lube>
[not found] ` <15653CE98281AD4FBD7F70BCEE3666E53CD54A@comxexch01.comx.local>
[not found] ` <1151000966.5392.34.camel@jzny2>
2006-06-23 12:37 ` [LARTC] " Russell Stuart
2006-06-23 12:37 ` Russell Stuart
2006-06-23 15:21 ` Patrick McHardy
2006-06-26 0:45 ` [LARTC] " Russell Stuart
2006-06-26 0:45 ` Russell Stuart
2006-06-26 11:10 ` Patrick McHardy
2006-06-27 6:19 ` [LARTC] " Russell Stuart
2006-06-27 6:19 ` Russell Stuart
2006-06-27 17:18 ` Patrick McHardy
2006-07-04 13:29 ` Patrick McHardy
2006-07-04 19:29 ` jamal
2006-07-04 23:53 ` Patrick McHardy
2006-07-06 0:39 ` [LARTC] " Russell Stuart
2006-07-06 0:39 ` Russell Stuart
2006-07-07 8:00 ` Patrick McHardy
2006-07-10 8:44 ` [LARTC] " Russell Stuart
2006-07-10 8:44 ` Russell Stuart
2006-06-24 14:13 ` jamal
2006-06-26 4:23 ` [LARTC] " Russell Stuart
2006-06-26 4:23 ` Russell Stuart
2006-07-18 2:06 ` [LARTC] " Russell Stuart
2006-07-18 2:06 ` Russell Stuart
2006-07-18 13:35 ` jamal
2006-07-18 21:46 ` Andy Furniss
2006-07-19 1:02 ` Russell Stuart
2006-07-19 14:42 ` Andy Furniss
2006-07-19 14:54 ` Patrick McHardy
2006-07-19 20:26 ` [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL (RTAB BUG) Jesper Dangaard Brouer
2006-07-19 21:00 ` Alexey Kuznetsov
2006-07-20 5:47 ` [LARTC] Re: [PATCH 0/2] NET: Accurate packet scheduling for Russell Stuart
2006-07-20 5:47 ` [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL (RTAB BUG) Russell Stuart
2006-07-20 23:49 ` Alexey Kuznetsov
2006-07-19 14:50 ` [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL Patrick McHardy
2006-07-20 4:56 ` [LARTC] " Russell Stuart
2006-07-20 4:56 ` Russell Stuart
2006-07-30 23:06 ` [LARTC] " Russell Stuart
2006-07-30 23:06 ` Russell Stuart
2006-08-08 22:01 ` Russell Stuart
2006-08-09 11:33 ` jamal
2006-09-04 10:37 ` Russell Stuart
2006-06-14 14:27 ` Phillip Susi [this message]
2006-06-14 15:08 ` Jesper Dangaard Brouer
2006-06-20 5:35 ` Chris Wedgwood
2006-06-20 7:33 ` Jesper Dangaard Brouer
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