Re: Traffic Shaping not working with CBQ

[Raghuveer K <rvk@xxxxxxxxxxx>]

Thanks Stef, Let me incorporate and test with your valuable suggestions. 
I will get back to you soon.

Regards
-Raghu


Stef Coene wrote:

> On Thursday 30 October 2003 11:29, Raghuveer K wrote:
>  
>
> > Hi Stef/Martin,
> >
> > Iam resending this mail for the third time, I request you to please
> > respond ASAP.
> >    
> You mail ended twice in my "to read" folder.
>
>  
>
> > Iam stucked as my traffic control is not working, I just tried first
> > with incoming traffic shaping, below is the test setup and rules
> > applied. Your valuable suggestion will surely help me and make it right.
> >
> > Traffic Control is not taking place after applying the below rules. Here
> > follows the test setup:-
> > 1. The linux m/c 's eth0(100Mbits, WAN) is connected to 128 Kbits ADSL
> > and eth1 to the LAN.
> > 2.  I tried doing traffic control for incoming(at eth1).
> > 3.  In LAN, I connected 3 m/c's(all linux).
> > 4.  The ISP rate  taken is 97% of 128Kbits.
> > 5.  Bandwidth Monitoring is done by using IPTraf on each LAN m/c's.
> >
> > Here are the rules Iam applying to control incoming traffic at LAN
> > interface(eth1) for LAN users.
> > Here actual Isp rate = 128Kbit, rate taken = 97% of 128Kbit, eth1 ip is
> > 192.168.5.1
> >
> > /* root qdisc */
> > tc qdisc add dev eth1 root handle 1: cbq bandwidth 100Mbit avpkt 1000 cell
> > 8
> >
> > /* Parent Class */
> > tc class add dev eth1 parent 1:0 classid 1:1 cbq bandwidth 100Mbit rate
> > 124Kbit weight 12Kbit prio 3 allot 1514 cell 8 maxburst 10  avpkt 1000
> > bounded
> > /* Whether should I place the below filter for Parent class..???
> > tc filter add dev eth1 parent 1:0 protocol ip prio 3 u32 match ip src
> > 0/0 match ip dst 0/0 classid 1:1
> > */
> >    
> You can also add the other filters to the root qdisc 1:0.
>
>  
>
> > /* Child Classes */
> >
> > /* 1st LAN user<192.168.5.2> = 37Kbit */
> > tc class add dev eth1 parent 1:1 classid 1:2 cbq bandwidth 100Mbit rate
> > 37Kbit weight 3Kbit prio 3 allot 1514 cell 8 maxburst 10  avpkt 1000
> > tc filter add dev eth1 parent 1:1 protocol ip prio 3 u32 match ip src
> > 0/0 match ip dst 192.168.5.2 classid 1:2
> >
> > /* 2nd LAN user<192.168.5.3> = 24Kbit */
> > tc class add dev eth1 parent 1:1 classid 1:3 cbq bandwidth 100Mbit rate
> > 24Kbit weight 2Kbit prio 3 allot 1514 cell 8 maxburst 10  avpkt 1000
> > tc filter add dev eth1 parent 1:1 protocol ip prio 3 u32 match ip src
> > 0/0 match ip dst 192.168.5.3 classid 1:3
> >
> > /* 3rd LAN user<192.168.5.4> = 12Kbit */
> > tc class add dev eth1 parent 1:1 classid 1:4 cbq bandwidth 100Mbit rate
> > 12Kbit weight 1Kbit prio 3 allot 1514 cell 8 maxburst 10  avpkt 1000
> > tc filter add dev eth1 parent 1:1 protocol ip prio 3 u32 match ip src
> > 0/0 match ip dst 192.168.5.4 classid 1:4
> >
> > /* Default : Rest/Other traffic = 51Kbit*/
> > tc class add dev eth1 parent 1:1 classid 1:5 cbq bandwidth 100Mbit rate
> > 51Kbit weight 5Kbit prio 3 allot 1514 cell 8 maxburst 10  avpkt 1000
> > tc filter add dev eth1 parent 1:1 protocol ip prio 3 u32 match ip src
> > 0/0 match ip dst 0/0 classid 1:5
> >
> > I have few observations and queries, as follows:--
> > 1.In my test setup the ISP rate is fluctuating in the range of 21Kbits
> > to 131 Kbits for 128Kbits ADSL.
> > 2. I have not added any filter for the parent class. Is it required...?
> > What happens if I add...?
> >    
> Add all your filters to the root qdisc and put the traffic in the destination 
> class.  Like :
> tc filter add dev eth1 parent 1:0 protocol ip prio 3 u32 match ip src 0/0 
> match ip dst 0/0 classid 1:5
>
>  
>
> > 3. Is "iptraf " tool OK for monitoring the distribution of bandwidth on
> > each LAN m/c.
> >    
> Yes.
>
>  
>
> > 4. In case, if I shape outgoing traffic on eth0 interface, whether shall
> > I take outgoing and incoming ISP rate's in 30:70 ratio, i.e 30% if
> > 128Kbits for
> >   outgoing Qdisc(eth0) and 70% for incoming Qdisc(eth1). As 128 Kbits
> > rate being asyncronous(ADSL).
> >    
> What's the speed of your connection?  128kbits for download, but how much for 
> uploads?
>
>  
>
> > Can you pls guide me where am I going wrong..? Do I continue using CBQ
> > or try instead HTB rules.
> >    
> If you can, go for htb.  Much less confusing options.
> Als, check out with tc -s -d class show dev eth1 if the filters are working 
> and each class is processing packets.
>
> Stef
>
>  


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