help, a children can not borrow from a parent?

[lihpc@xxxxxxxxxx]



Hi ;

MY script:

tc-htb3 qdisc del dev eth2 root
ipchains -F

tc-htb3 qdisc add dev eth2 root handle 10: htb default 20  r2q 40

tc-htb3 class add dev eth2 parent 10: classid 10:1 htb rate 50Mbit   burst
2000

tc-htb3 class add dev eth2 parent 10:1 classid 10:100 htb rate 12mbit ceil
50mbit prio 1
tc-htb3 class add dev eth2 parent 10:1 classid 10:20 htb rate 38mbit ceil
50Mbit prio 8

ipchains -A fw -s 10.1.1.1  -m 100
ipchains -A fw -s 0.0.0.0 -d 0.0.0.0 -j ACCEPT

tc-htb3 filter add dev eth2 protocol ip parent 10:0 prio 1 handle 100  fw
classid 10:100

WHEN i send packets at 20mbit from 10.1.1.1 ,
#tc -s -d qdisc show dev eth2
qdisc htb 10:
 Sent 246602122 bytes 487287 pkts (dropped 323938, overlimits 1850710)

#tc -s -d class show dev eth2
class htb 10:1 root prio 0 rate 50Mbit ceil 50Mbit burst 1985b/8 mpu 0b
cburst 67121b/8 mpu 0b quantum 0 level 7
 Sent 246602122 bytes 487287 pkts (dropped 0, overlimits 0)
 rate 8bps

class htb 10:100 parent 10:1 prio 1 rate 12Mbit ceil 50Mbit burst 17325b/8
mpu 0b cburst 67121b/8 mpu 0b quantum 39321 level 0
 Sent 246552164 bytes 486503 pkts (dropped 323938, overlimits 0)

class htb 10:20 parent 10:1 prio 1 rate 38Mbit ceil 50Mbit burst 51396b/8
mpu 0b cburst 67121b/8 mpu 0b quantum 124518 level 0
 Sent 49958 bytes 784 pkts (dropped 0, overlimits 0)
 rate 8bps


 a class 10:100 can not borrow from a parent 10:0 ,WHY?

regards,

haipe

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