[LARTC] ssh and cs LAG

[LARTC] ssh and cs LAG

[Hariett Jones]

I have htb on 486 sx with 16mb ram. Slackware 9.1. Connection : dsl 1Mbit.

486 works as router and trafic shaper for network made of 12 pc's. it 
does the job quite well, but when i play Counter-Strike or connect to my 
486 via ssh (on lan), i get huge lag every 11-20 sec. when i connect to 
486 via ssh and run iptraf program i see all the trafic, and after a 
while when lag comes the kb/s stats reset. and iptraf shows that there 
is only 50% bandwith usage. What could be the problem ?

root@gecon:/home/bernard# cat /etc/rc.d/rc.htb
#!/bin/sh
HIGHSPEED="19 "
CLIENTS="01 05 07 11 12 13 15 18 63"
SLOW="20 21 22"
htb_start() {
 echo "tc qdisc add dev eth1 root handle 1: htb default 12"
 tc qdisc add dev eth1 root handle 1: htb default 12
 echo "tc qdisc add dev eth0 root handle 2: tbf rate 230kbit latency 
50ms burst 1540"
 tc qdisc add dev eth0 root handle 2: tbf rate 230kbit latency 50ms 
burst 1540
 echo "tc class add dev eth1 parent 1: classid 1:1 htb rate 1000kbit 
ceil 1000kbit"
 tc class add dev eth1 parent 1: classid 1:1 htb rate 1000kbit ceil 
1000kbit
#  tc class add dev eth1 parent 1: classid 1:2 htb rate 200kbit ceil 200kbit

 echo "Ustawianie klas"
 for IP in $HIGHSPEED; do
   echo "tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 
500kbit ceil 1000kbit"
   tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 500kbit 
ceil 1000kbit
#    tc class add dev eth1 parent 1:2 classid 1:2${IP} htb rate 20kbit 
ceil 20kbit
 done
 
 for IP in $CLIENTS; do
   echo "tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 
100kbit ceil 1000kbit"
   tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 100kbit 
ceil 1000kbit
#    tc class add dev eth1 parent 1:2 classid 1:2${IP} htb rate 20kbit 
ceil 20kbit
 done

 for IP in $SLOW; do
   echo "tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 
50kbit ceil 1000kbit"
   tc class add dev eth1 parent 1:1 classid 1:1${IP} htb rate 50kbit 
ceil 1000kbit
 done
 # dla niezakwalifikowanych gdzie indziej
 echo "tc class add dev eth1 parent 1:1 classid 1:100 htb rate 50kbit 
ceil 50kbit quantum 4"
 tc class add dev eth1 parent 1:1 classid 1:100 htb rate 50kbit ceil 
50kbit quantum 4
#  tc class add dev eth1 parent 1:2 classid 1:200 htb rate 10kbit ceil 
10kbit

 echo "Ustawianie filtrów i SFQ"
 for IP in $HIGHSPEED; do
   echo "tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match 
ip dst 192.168.0.1${IP} flowid 1:1${IP}"
   tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip dst 
192.168.0.1${IP} flowid 1:1${IP}
#    tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip 
src 192.168.0.1${IP} flowid 1:2${IP}
   echo "tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq 
perturb 10"
   tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq perturb 10
#    tc qdisc add dev eth1 parent 1:2${IP} handle 2${IP}:0 sfq perturb 10
 done

 for IP in $CLIENTS; do
   echo "tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match 
ip dst 192.168.0.1${IP} flowid 1:1${IP}"
   tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip dst 
192.168.0.1${IP} flowid 1:1${IP}
#    tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip 
src 192.168.0.1${IP} flowid 1:2${IP}
   echo "tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq 
perturb 10"
   tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq perturb 10
#    tc qdisc add dev eth1 parent 1:2${IP} handle 2${IP}:0 sfq perturb 10
 done
 for IP in $SLOW; do
   echo "tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match 
ip dst 192.168.0.1${IP} flowid 1:1${IP}"
   tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip dst 
192.168.0.1${IP} flowid 1:1${IP}
#    tc filter add dev eth1 protocol ip parent 1: prio 2 u32 match ip 
src 192.168.0.1${IP} flowid 1:2${IP}
   echo "tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq 
perturb 10"
   tc qdisc add dev eth1 parent 1:1${IP} handle 1${IP}:0 sfq perturb 10
 done
 echo "tc filter add dev eth1 protocol ip parent 1: prio 3 u32 match ip 
dst 192.168.0.0/24 flowid 1:100"
 tc filter add dev eth1 protocol ip parent 1: prio 3 u32 match ip dst 
192.168.0.0/24 flowid 1:100
#  tc filter add dev eth1 protocol ip parent 1: prio 3 u32 match ip src 
192.168.0.0/24 flowid 1:200
 echo "tc qdisc add dev eth1 parent 1:100 handle 100:0 sfq perturb 10"
#  tc qdisc add dev eth1 parent 1:200 handle 200:0 sfq perturb 10
}

htb_stop() {
 echo "tc qdisc del dev eth1 root"
 tc qdisc del dev eth1 root
 echo "tc qdisc del dev eth0 root"
 tc qdisc del dev eth0 root
}

case "$1" in
'start')
 htb_start
 ;;
'stop')
 htb_stop
 ;;
'restart')
 htb_stop
 htb_start
 ;;
*)
 echo "usage $0 start|stop|restart"



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