Hi George,
You can try this style:
See if it works better.
dev eth0 {
egress {
class (<$high_prio>) if ip_src == 10.0.0.80;
class (<$htb_1>) if ip_src == 10.0.0.1;
class (<$htb_2>) if 1;
prio {
$high_prio = class { sfq; };
class {
htb (quantum 2ms) {
class (rate 100kbps, ceil 100kbps) {
$htb_1 = class (rate 80kbps, ceil 100kbps) {sfq;};
$htb_2 = class (rate 20kbps, ceil 100kbps) {sfq;};
}
}
}
}
}
}
- Jacob
> Message: 4
> Date: Thu, 17 Apr 2003 05:55:50 -0700 (PDT)
> From: George Spiliotis <gspiliot@xxxxxxxxx>
> To: lartc@xxxxxxxxxxxxxxx
> Subject: [LARTC] [tcng] Is there a bug in tcc or my code is wrong?
>
> Dear list members,
>
> I think there must be something wrong with my code or the
> tcng package has a small bug...
>
> First, the rules are simple: everything from 10.0.0.80 gets
> full priority whereas anything else gets a 80/20 rate
> depending if the packets are comming from 10.0.0.1 or not:
>
> # TCSIM input: file demo.tcc
> #define FLOW(n) TCP_PCK($ip_src=10.0.0.##n) \
> 0 x 960 /* 1000-header = 960 bytes
> */
>
> dev eth0 100kbps {
> egress {
> prio {
> class ( 1 ) \
> if ip_src == 10.0.0.80 { sfq; };
> class ( 2 ) if 1 {
> htb (quantum 2ms) {
> class (rate 100kbps, ceil 100kbps) {
> class (rate 80kbps, ceil 100kbps) \
> if ip_src == 10.0.0.1 {sfq;}
> class (rate 20kbps, ceil 100kbps) \
> if 1 {sfq;}
> }
> }
> }
> }
> }
> }
>
> every 0.05s until 1s send FLOW(80);
> every 0.05s until 6s send FLOW(1);
> every 0.05s until 7s send FLOW(2);
> time 3s;
> every 0.05s until 4s send FLOW(80);
> time 10s;
> end;
>
> If we graph the above with the command:
> tcsim demo.tcc | tcsim_filter src | tcsim_plot -a 20
> we see that both 10.0.0.1 and 10.0.0.2 get 50% despite the
> fact of the above "if" in the htb class. If we observe the
> output from tcc on the above source we can see that we get
> the "tc filter" command for the parent htb class and not on
> the htb qdisc! This results in the filters for the htb
> qdisc never to be consulted! Have a look:
>
> command: tcc demo-src.tcc
> ....
> tc qdisc add dev eth0 handle 1:0 root dsmark indices 4
> default_index 0
> tc qdisc add dev eth0 handle 2:0 parent 1:0 prio
> tc qdisc add dev eth0 handle 3:0 parent 2:1 sfq perturb 1
> tc qdisc add dev eth0 handle 4:0 parent 2:2 htb
> tc class add dev eth0 parent 4:0 classid 4:1 htb rate
> 12500bps ceil 12500bps quantum 25000
> tc class add dev eth0 parent 4:1 classid 4:2 htb rate
> 11250bps ceil 12500bps quantum 22500
> tc qdisc add dev eth0 handle 5:0 parent 4:2 sfq
> tc class add dev eth0 parent 4:1 classid 4:3 htb rate
> 1250bps ceil 12500bps quantum 2500
> tc qdisc add dev eth0 handle 6:0 parent 4:3 sfq
> tc filter add dev eth0 parent 4:1 protocol all prio 1 u32
> match u32 0xa000001 0xffffffff at 12 classid 4:2
> .... ^^^ oups! should be 4.0!!
>
> Is there something I am missing from the code in order to
> attach the filters to the htb qdisc and not the borrowing
> class?
>
> George.
