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Hello everybody,
I have a Linux router with an ethernet adapter and
a ADSL device.
My router has a GRE tunnel connected to a remote IP address. Using "tc" I have configured 3 different
classes:
1. 290kbit rate (used for Voip Services) 2. 180kbit rate (used for GRE tunnel) 3. 80kbit rate (for generic data traffic) For each class, using "iperf", I send some data
from a PC (connected attraverso eth0 device)
to a remote destination. The remote destination is the GRE tunnel terminator. The data traffic test is different for each
class:
1. 240kbit, 60byte packet size, UDP protocol 2. 200kbit, 250byte packet size, UDP protocol 3. 80kbit, 235byte packet size, UDP protocol In this way I got a lot of dropped packets on each
class, while my expected results was
a many drop packages only on the second class. Can someone help me?
Thank all you,
roberto
This is the class configuration script:
iptables -t mangle -A PREROUTING -m dscp --dscp 40 -j MARK --set-mark 100 iptables -t mangle -A PREROUTING -m dscp --dscp 40 -j ACCEPT iptables -t mangle -A PREROUTING -d 11.11.11.250 -j DSCP --set-dscp 16 iptables -t mangle -A PREROUTING -d 11.11.11.250 -j MARK --set-mark 200 iptables -t mangle -A PREROUTING -d 11.11.11.250 -j ACCEPT iptables -t mangle -A PREROUTING -j DSCP --set-dscp 0 iptables -t mangle -A PREROUTING -j MARK --set-mark 300 iptables -t mangle -A PREROUTING -j ACCEPT tc qdisc add dev atm0 root handle 1: cbq bandwidth
500Kbit avpkt 500
tc qdisc add dev tadsl0 root handle 1: cbq bandwidth 500Kbit avpkt 500 tc class add dev atm0 classid 1:1 parent 1: cbq
bandwidth 500Kbit rate 500Kbit avpkt 400 prio 1 allot 500
tc class add dev atm0 classid 1:2 parent 1:1 cbq
bandwidth 500Kbit rate 290Kbit avpkt 400 prio 1 allot 500 bounded isolated
tc filter add dev atm0 parent 1:0 protocol ip prio 1 handle 100 fw flowid 1:2 tc qdisc add dev atm0 parent 1:2 pfifo limit 10 tc class add dev atm0 classid 1:3 parent 1:1 cbq
bandwidth 500Kbit rate 180Kbit avpkt 400 prio 2 bounded isolated allot
500
tc filter add dev atm0 parent 1:0 protocol ip prio 2 handle 200 fw flowid 1:3 tc qdisc add dev atm0 parent 1:3 handle 20: sfq perturb 5 tc class add dev atm0 classid 1:4 parent 1:1 cbq
bandwidth 500Kbit rate 80Kbit avpkt 400 prio 3 bounded isolated allot
500
tc filter add dev atm0 parent 1:0 protocol ip prio 3 handle 300 fw flowid 1:4 tc qdisc add dev atm0 parent 1:4 handle 30: sfq perturb 5 |
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