[LARTC] prio fighting

[Nikolai Vladychevski <niko@isl.net.mx>]

Hi,

I have done this setup to give the machine 192.168.1.4 (masqueraded over
dialup) the highest priority:

#! /bin/bash
WHAT="add"
iptables -A PREROUTING -i eth0 -s 192.168.1.1 -t mangle -j MARK
--set-mark 1
iptables -A PREROUTING -i eth0 -s 192.168.1.4 -t mangle -j MARK
--set-mark 4
tc qdisc $WHAT dev ppp0 root handle 1: prio bands 3 priomap 0 1 2
tc qdisc $WHAT dev ppp0 parent 1:1 handle 2: pfifo limit 1024
tc qdisc $WHAT dev ppp0 parent 1:2 handle 3: pfifo limit 1024
tc qdisc $WHAT dev ppp0 parent 1:3 handle 4: pfifo limit 1024
tc filter add dev ppp0 protocol ip parent 1:0 prio 0 handle 4 fw classid
1:2
tc filter add dev ppp0 protocol ip parent 1:0 prio 2 handle 1 fw classid
1:3


and it is working because form the stats I can see the packets are
flowing:

[root@qis /root]# tc -s -r qdisc show dev ppp0
qdisc pfifo 4: limit 1024p
 Sent 42374 bytes 804 pkts (dropped 0, overlimits 0) 

 qdisc pfifo 3: limit 1024p
 Sent 16535 bytes 381 pkts (dropped 0, overlimits 0) 

 qdisc pfifo 2: limit 1024p
 Sent 589 bytes 10 pkts (dropped 0, overlimits 0) 

 qdisc prio 1: bands 3 priomap  0 1 2 2 1 2 0 0 1 1 1 1 1 1 1 1
 Sent 59498 bytes 1195 pkts (dropped 0, overlimits 0) 


There is just 1 problem, the prioritization is not working. When I start
downloading FTP on on the machine 192.168.1.1 , wait 20-30 secs and
start another FTP session on 192.168.1.4 it does not gets the full
bandwidth as it should get.  What could be wrong? One workstation is
linux (.1) , other is Win98 (.4), I don't know if this could  be the
issue.


Thanks in advance

Nikolai

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