Hi
I have flat structure of traffic control - 8 children can borrow from a
parent.
Problem: The rest bandwidth is not divided to children how I expect.
The ISP line is 64kbit/s,therefore, I'm working with 56kbit/s.
(the config is in the end of the mail)
I set up a test environment -
1\ 3 PCs, each of them in different subclass
2\ minimal bandwidth (RATE)
PC1 - 4kbit/s class 1:10
PC2 - 4kbit/s class 1:40
PC3 - 15kbit/s class 1:80
maximal bandwith (CEIL) 56kbit/s
3\ all of the PCs download the same big file from ISP ftp server by Windows
Commander.
I supposed "the rest of bandwidth is divided to the PCs in ratio of their
RATE values". But it isn't.
Calculation
========
the rest: 56 - 4 - 4 - 15 = 33 kbit/s
desired PC1 bw: 4 + 33/(4+4+15) * 4 = 9,74 kbit/s < real
PC1 bw: 12 kbit/s
desired PC2 bw: 4 + 33/(4+4+15) * 4 = 9,74 kbit/s < real
PC2 bw: 12 kbit/s
desired PC3 bw: 15 + 33/(4+4+15) * 15 = 36,52 kbit/s > real
PC3 bw: 29.6 kbit/s
Please,can anybody tell me what's wrong in the calculation or setting?
Thanks
Lumir Unzeitig
---[ eth0: configured classes ]---------------------------
class htb 1:1 root prio 0 rate 56Kbit ceil 56Kbit burst 2Kb cburst 1670b
Sent 1912117995 bytes 2263853 pkts (dropped 0, overlimits 0)
rate 292bps 1pps
lended: 1072525 borrowed: 0 giants: 0 injects: 0
tokens: 227657 ctokens: 184572
class htb 1:10 parent 1:1 leaf 100: prio 0 rate 4Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 26382511 bytes 303604 pkts (dropped 0, overlimits 364)
rate 107bps
lended: 300541 borrowed: 3063 giants: 0 injects: 0
tokens: 3161600 ctokens: 182743
class htb 1:20 parent 1:1 leaf 200: prio 0 rate 9Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 394142012 bytes 400328 pkts (dropped 0, overlimits 10743)
lended: 138359 borrowed: 261969 giants: 0 injects: 0
tokens: 1236764 ctokens: 184572
class htb 1:40 parent 1:1 leaf 400: prio 0 rate 4Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 5245504 bytes 4490 pkts (dropped 0, overlimits 67)
lended: 1627 borrowed: 2863 giants: 0 injects: 0
tokens: 3174400 ctokens: 183658
class htb 1:50 parent 1:1 leaf 500: prio 0 rate 6Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 186581247 bytes 273327 pkts (dropped 0, overlimits 3118)
lended: 144824 borrowed: 128503 giants: 0 injects: 0
tokens: 2116266 ctokens: 183658
class htb 1:60 parent 1:1 leaf 600: prio 0 rate 9Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 71911357 bytes 143754 pkts (dropped 0, overlimits 2096)
rate 3bps
lended: 104774 borrowed: 38980 giants: 0 injects: 0
tokens: 1190802 ctokens: 184572
class htb 1:70 parent 1:1 leaf 700: prio 0 rate 4Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 18277641 bytes 22099 pkts (dropped 0, overlimits 537)
lended: 5879 borrowed: 16220 giants: 0 injects: 0
tokens: 2436096 ctokens: 184572
class htb 1:80 parent 1:1 leaf 800: prio 0 rate 15Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 1176861863 bytes 1057644 pkts (dropped 0, overlimits 19241)
rate 285bps 1pps
lended: 471653 borrowed: 585991 giants: 0 injects: 0
tokens: 849920 ctokens: 184572
class htb 1:90 parent 1:1 leaf 900: prio 0 rate 6Kbit ceil 56Kbit burst 2Kb
cburst 1670b
Sent 32715860 bytes 58607 pkts (dropped 0, overlimits 2741)
lended: 23671 borrowed: 34936 giants: 0 injects: 0
tokens: 2116266 ctokens: 183658
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