load balancing / sharing internet connection query

nospam wrote:

> Could someone please tell me how, or point to appropriate fm, to load
> balance between several people sharing the same internet connection
> (I wish to share with my flatmates), so that each machine gets a slice
> of whatever bandwidth is available, and no one gets to hog the lot?

Yes, read the Advanced Routing Howto on www.tldp.org:

http://www.tldp.org/HOWTO/Adv-Routin...rtc.qdisc.html

Do NOT expect to grep this in one reading !

It's quite complicated, but it can be done...

> also could I have two connections, and share those amongst multiple
> clients?

Again, TLDP is your friend:

http://www.tldp.org/HOWTO/Adv-Routin...ple-links.html

and:

http://www.tldp.org/HOWTO/Adv-Routin...loadshare.html

> regards max

Received and accepted ;-)

--
Jeroen Geilman

On KNode, thankfully...

> Do NOT expect to grep this in one reading !

Would you, by chance, mean "grok"?

steve

Could someone please tell me how, or point to appropriate fm, to load
balance between several people sharing the same internet connection
(I wish to share with my flatmates), so that each machine gets a slice
of whatever bandwidth is available, and no one gets to hog the lot?

also could I have two connections, and share those amongst multiple
clients?

regards max

On Sat, 09 Aug 2003 03:39:51 +1200, max barwell wrote:

> Could someone please tell me how, or point to appropriate fm, to load
> balance between several people sharing the same internet connection (I
> wish to share with my flatmates), so that each machine gets a slice of
> whatever bandwidth is available, and no one gets to hog the lot?
>
> also could I have two connections, and share those amongst multiple
> clients?
>
> regards max


After going through the tc man page etc, you need a plan. The easiest
would be to create a class that takes up the full upload bandwidth. Then,
attach stochastic fairness queuing to it. SFQ does some magic so one
stream ( the one dl-ing iso's, say) does not drown out your shoutcast
stream.



#!/bin/bash
TC=/sbin/tc
EXT=ppp0
MAXRATE="160kbit"
BW="bandwidth $MAXRATE"
AVPKT="avpkt 1200"
ALLOT="allot 1400"

# Delete any old stuff hanging around - deleting the

# root removes all the sub qdiscs and classes

$TC qdisc del dev $EXT root 2> /dev/null >/dev/null

$TC qdisc add dev $EXT root handle 1:0 cbq $AVPKT $BW


# A root CLASS set to bandwidth we are capable of..

$TC class add dev $EXT parent 1:0 classid 1:1 cbq rate $MAXRATE $ALLOT
prio 5 $AVPKT $BW bounded isolated

###############################################
# Q U E U E D I S C IP L I N E S #
###############################################
#
# perturb : seconds to wait before changing
# hash function
# quantum values : 1492 1 packet
# 2984 2 packets
# 4476 3 packets
# 5968 4 packets
# 7460 5 packets

$TC qdisc add dev $EXT parent 1:1 sfq perturb 10 quantum 1492




You can also specify a ratio based distribution of bandwidth, which the
lartc.org has an example of.


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