Monday, December 09, 2002, 11:16:24 PM, you wrote: SSp> Morten Isaksen wrote: >> We are running with an 8 Mbit WAN link and are using wrr to shape the >> traffic between 800 users. This works fine and all the bandwith are en >> use most of the time. SSp> Sorry to break in to the thread like this, but... SSp> 1. Is it one single 8/8Mb link? Yes it's a one single 8Mbit/s link SSp> 2. Hows the tc configuration? (Like the example in the wrr-package?) We are doing both, the ingress and egress shapings. Egress is done by HTB and SFQ attached to the leaf classes, but i am not sure whether i have set it up correctly. I have written a perl script which takes the the values (rate, IPs) from the database, so the example below is taken from script and the variables are changed to normal strings: The traffic is shaped for 'Local' and 'Foreign' connections. Foreign is 4 times as small as Local (i.e. if Local is 256kbit, then Foreign is 64, but both together cant exceed Local traffic) I left the ingress shaping out cause it is not actual. And i have added comments just right now # add root class /sbin/tc qdisc add dev eth2 root handle 1: htb # client 1 (this client has 256kbit/s) # # Maximum 256K for everything /sbin/tc class add dev eth2 parent 1: classid 1:1 htb rate 256kbit ceil 256kbit # 192kbit for Local (and Local can borrow from the parent and have max # 256 if Foreign is not used) /sbin/tc class add dev eth2 parent 1:1 classid 1:2 htb rate 192kbit ceil 256kbit # 64Kbit fro Foreign (and cant borrow) /sbin/tc class add dev eth2 parent 1:1 classid 1:3 htb rate 64kbit ceil 64kbit # Now add SFQ qdiscs for Local and Foreign Classes # Local /sbin/tc qdisc add dev eth2 parent 1:2 handle 1500: sfq perturb 10 # Foreign /sbin/tc qdisc add dev eth2 parent 1:3 handle 1501: sfq perturb 10 # Filters # for flowid 1:2 # and for flowid 1:3 # # ... # Repeated for all 250 clients. Rates and parent ID's are changing. SSp> 3. Are there any latency-problems? No, I havent noticed any. SSp> 4. What measures has been taken to ensure low latency? none. P.Krumins ____________________________________________________________ Reìistrç un lieto savu Apollo e-pastu www.e-apollo.lv www.apollo.lv _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
