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From: "Bas Rijniersce" <bas@brijn.nu>
To: lartc@vger.kernel.org
Subject: [LARTC] Limiting Citrix printing traffic, so ensure interactive sessions
Date: Mon, 20 May 2002 09:23:08 +0000	[thread overview]
Message-ID: <marc-lartc-102188660824086@msgid-missing> (raw)

LS,

Spent a lot of this weekend reading about shaping and traffic control.
The Howto is very extensive... :-) I hope to use this list to see if
what I want is possible.

The situation:
- A central (big) Citrix cluster located in Frankfurt (all servers in
one subnet)
- The office in Rotterdam connected to Franfurt with a 2Mbit line
- The office in Bergen (Norway) connected to *Rotterdam* with a 128 line

Normal citrix session uses max 20k/s, printing is not limited! The
problem is obvious, one user sent a big print job... Away is the
interactive performance..

What i'm thinking of:

[Citrix cluster] -- [Linux proxy-arp shaper]-- Router to RTD -- Router
to Brg

What is probably very easy to do is bring all the printers in a separate
subnet in Bergen and use iptables to mark the packets for this subnet (I
build a proxy-arp firewall before, so these are familiair techniques).
It seems that Citrix traffic uses dynamic port numbers so identifying
them this way seems impossible. If someone knows a way to use the u32
filter to select Citrix normal and Citrix printing traffic???

The behaviour that I would like to get:
- If no other traffic, printing or interactive get 100%
- If other traffic, printing gets the rest

I don't know if this is possible, acceptable would also be, let printing
never exceed 30% of the total bandwidth

Thank you very much for your help!
Bas Rijniersce

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             reply	other threads:[~2002-05-20  9:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-20  9:23 Bas Rijniersce [this message]
2002-05-20  9:48 ` [LARTC] Limiting Citrix printing traffic, so ensure interactive sessions Stef Coene
2002-05-20  9:58 ` Bas Rijniersce
2002-05-20 10:45 ` Stef Coene
2002-05-20 12:29 ` Thomas Graf
2002-05-20 12:40 ` Stef Coene

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