similar to: Divisor

Hello I have 2 class-B networks (172.22.0.0/16 and 172.23.0.0/16, over 130k of ip''s) and need to setup traffic tbf shapers with 64kb/s for each ip from 172.22.0.0/16 and 128kb/s for each ip from 172.23.0.0/16 just read lartc and don''t understand how to use u32 for decreasing number of rules and hashing

$TC filter add dev imq0 parent 1:0 prio 5 protocol ip u32 $TC filter add dev imq0 parent 1:0 prio 5 handle 2: protocol ip u32 divisor 256 for ((j=0; j<=7; j++)) do for ((i=0; i<=255; i++)) do q=`printf "%x\n" $i` $TC filter add dev imq0 protocol ip parent 1:0 u32 ht 2:$q: match ip src 10.0.$j.$i flowid 1:10 echo "$q 10.0.${j}.$i" done done $TC

Hi i have 2 class C 80.97.103.0/24 and 81.180.12.0/24 but i dont konw how to set hashing tables for HTB tc add dev eth0 parent 1: prio 0 handle 1: protocol ip u32 divisor 256 tc add dev eth0 parent 1: prio 0 protocol ip u32 match src 80.97.103.0/24 hashkey mask 0x000000FF at 12 link 1: but i want 2 hashkey for 80.97.103.0/24 and for 81.180.12.0/24 can somebody help me ?

Hi all, I am a newbie and I have not played a lot with tc utility. I have red maybe everything that has to do with massive filtering (maybe not everything). If you can help me on this I would appriciate that very much. I use tc utility with iproute2-ss040831. I want to limit bandwidth for the 192.168.0.0/16 subnet using this script. tc qdisc del dev eth0 root tc qdisc add dev eth0 root

Hello I have a server with a dsl connection on eth1 and local interface eth0. Because of the NAT i cannot direct traffic to IMQ device in PREROUTING chain but have to use INPUT and FORWARD. So i use rules. iptables -t mangle -A INPUT -i eth1 -j IMQ --todev 0 iptables -t mangle -A FORWARD -i eth1 -j IMQ --todev 0 And now the strange thing: FORWARD traffic gets directed nicely to the IMQ, but

Hi I''m doing traffic shaping with tc on ''10.0.0.0/30'' and ''10.0.0.28/30''. I want to delete part of shaping rules on the fly. (see my configuration at the end of this mail) I wan''t to delete the shaping for ''10.0.0.0/30'' on the fly while still keeping the shaping for part ''10.0.0.28/30'' running. When I for

Hi I have been playing with tc. I''m using htb and sfq. I tried to setup shaping of every ip address within a /20. I found that there must be an upper limit of about 2096 on the number of rules (classes, qdiscs or filters). I was testing a /20 which gives 4096 classes, qdiscs and filters. I''m using hashkey to optimize processing of frames. When executing the script below - it

I forgot to ask a few more. Is there a relation between the hashtable ID /(parent,handle) so that if I used 2: for a hash table I could or couldn''t use 2: for a (parent,handle)ID? I also noticed that you type the hashtables like 2:2: can you have more levels with this? like 2:2:2:1: ? and I guess the same question with the parent/handles. thanks again. -- When dealing with a slow

Hello everyone: As it is known, when you limit uplink bandwidth it usually gets downlink bandwidth to a lower value. I just want to know what is the optimal configuration for eth1 and imq0 according to some variables of tc(HTB), txqueuelen, mtu, etc. to make these packet flows less independent on an ethernet based network. Thank you in advance. -Diego

Hey all, I had asked a question a little while ago about CPU usage being outrageous while using tc and a cbq qdisc. Ed was very kind and offered a few suggestions. One of these was to look at hashing. So after pounding away at it for about a week, I have a general understanding of how it works and have tried to implement it. Unfortunately, and quite obviously since I''m posting here, it

Hi all! :) I see that this is partially covered in the mailing list archive but at the moment I can''t find a straight & working answer. I have an imq device with dynamically attacched classes/qdiscs/filters. There is a hashing filter that maps the last octet of an user''s IP address to a class (and associated qdisc). The "empty" filter looks like this: filter

Hello, Is there a function in R with which we could find the greatest common divisor directly? Or is there a funciton, which could help us to find the remainder of a division directly? Best wishes! Thank you! Your truly, Qing -- View this message in context: http://r.789695.n4.nabble.com/greatest-common-divisor-tp2326262p2326262.html Sent from the R help mailing list archive at

Hi all, my IMQ device works OK (thanks to Andy Furniss), but now I''ve problems to attach the traffic in the qdisc''s. This is my conf: ----------------------------------------------------------------------- INET | |eth0 300Kbps ROUTER (NAT) |eth1 | LAN ----------------------------------------------------------------------- MAX=300 tc qdisc add dev imq0 root handle 1: htb

Hi, I am trying to put together a hashing filter based on example provided in LARTC how-to document. I want to link two hashing filters together where first one will use 3rd octet of an IP address as hashkey and second one will use 4th octet as hash key. How do I tell mask the address so that u32 filter uses 3rd octet as hashkey? Venkatesh K _______________________________________________

Hi folks, I`ve a problem to use HTB and SFQ. The first script, below, to show a simple configuration, does work fine...!!! But, in the second example, does not work, becouse i put more code to clasify the traffic by protocol, http and ftp in this case. Somebody can tell me the errors? Thx, in advance.- NOTICE: IMQ device is to asociate with ETH1 my external iface. SCRIPT que funciona:

Hi All, I''m trying to create a contended section of bandwidth using IMQ. I have the imq0 device up and running, with traffic passing through it. Firstly, I need to throttle the entire device imq0 to 2mbit/s. I would then like to add throttle rules for individual IP addresses, allowing them to pass up to 512kbit/s each, as long as imq0 has not reached its 2mbit/s. The configuration

Hi I try setup imq pseudo device for shaping I''m work such script #!/bin/sh TC=/sbin/tc /sbin/modprobe imq numdevs=1 /sbin/ip link set imq0 up $TC qdisc add dev imq0 handle 1: root htb default 1 $TC class add dev imq0 parent 1: classid 1:1 htb rate 10mbit # client1 tunnel tunnel $TC class add dev imq0 parent 1: classid 1:2 htb rate 256kbit $TC filter add dev imq0 protocol ip parent 1:0

Hello, I''ve just recently started to use IMQ and I got puzzled after seeing the imq usage example on the linuximq.net site: It was something like this: tc qdisc add dev imq0 handle 1: root htb default 1 tc class add dev imq0 parent 1: classid 1:1 htb rate 1mbit tc qdisc add dev imq0 parent 1:1 handle 10: htb default 5 tc class add dev imq0 parent 10: classid 10:1 htb rate 256kbit

hi stef oone more pb while shaping incoming traffic with imq .this one tc qdisc add dev imq0 root handle 1: htb default 20 tc class add dev imq0 parent 1: classid 1:1 htb rate 2mbit burst 15k tc class add dev imq0 parent 1:1 classid 1:10 htb rate 1mbit tc class add dev imq0 parent 1:1 classid 1:20 htb rate 1mbit tc qdisc add dev imq0 parent 1:10 handle 10: pfifo tc qdisc add dev imq0 parent

Hello to all people there . Can i guarantee ICMP respond time no metter how loaded is internet line . i have typical NATed enviroiment like External IP |linux router| LAN - 192.168.0.0/24 i have example setup with IMQ but is it possible to be done also if i attache htb to eth0 and eth1 for example . if i start shaper ping i better that without shaper but it''s not guarantted i mean