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From: "Michael T. Babcock" <mbabcock@fibrespeed.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Shaping incoming traffic?
Date: Sun, 18 Nov 2001 23:50:57 +0000	[thread overview]
Message-ID: <marc-lartc-100694028702680@msgid-missing> (raw)
In-Reply-To: <marc-lartc-100608970116427@msgid-missing>

On Mon, Nov 19, 2001 at 12:21:19AM +1100, Manfred Bartz wrote:
> 
> I would like to differentiate incoming traffic streams to guarantee
> minimum bandwidth to some services.  However, as per the
> Adv-Routing-HOWTO it appears that only outgoing traffic can be shaped.
> Is this correct or is there a way of shaping incoming traffic?

"Shaping" of incoming traffic would only (if anything) have an effect 
on applications that received that traffic and/or CPU usage, it 
wouldn't change whether or not packets got to you.  The problem is that 
by the time the packet is in the shaping routine, it has already 
inherently passed your network interface.  At that point, it had 
already passed your ISP's router and any limitations they have on your 
incoming traffic (like speed caps, etc.).  If your interface was fully 
congested or your incoming bandwidth is saturated at the ISP link, the 
ISP would be dropping/queuing packets, not you.  If you are 
experiencing incoming network congestion (packets are out of order 
during high usage times is a good indicator), then ask your ISP if they 
will shape the traffic to you based on your preferences.

-- 
Michael T. Babcock
CTO, FibreSpeed Ltd.

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/2.4Routing/

  parent reply	other threads:[~2001-11-18 23:50 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-11-18 13:21 [LARTC] Shaping incoming traffic? Manfred Bartz
2001-11-18 13:48 ` Martin Devera
2001-11-18 14:17 ` Manfred Bartz
2001-11-18 23:50 ` Michael T. Babcock [this message]
2001-11-19 10:42 ` Fredrik Björk
2001-11-19 11:07 ` devik
2001-11-20  7:12 ` Kristian Hoffmann
2001-11-20  9:12 ` Martin Devera

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