similar to: tc bandwidth utilization

Hi, i''m running a Bridge/iptables firewall, with no tc filters configured CPU utilization barely reaches 1%, i had to rate limit one particular server outgoing traffic and setup a HTB scheme like this iptables -F PREROUTING -t mangle iptables -A PREROUTING -t mangle -p tcp -s 99.99.99.99 -j MARK --set-mark 2 tc qdisc del dev eth0 root tc qdisc add dev eth0 root handle 10: htb default

Hi all I am conducting the experiments comparing IP router forwarding delay and MPLS LSR forwarding delay, it is obvious in theory MPLS in Core should be faster than IP, but for small netork (only have several core routers), result show it is not, this is why I want emulate a large IP routing table in one core router. can I do it and how ? right now I use static routing table (by using command :

Hi, I have a problem with ''tc filter'' on a 2.4.22 kernel from Slackware 9.1 distribution. The tc command binary is from htb3.6-020525.tgz (http://luxik.cdi.cz/~devik/qos/htb) I''m trying the following command sequence: tc qdisc add dev eth0 root handle 1: htb default 1 r2q 1 tc class add dev eth0 parent 1: classid 1:1 htb rate 1200kbit ceil 1200kbit tc class add dev

Hi, I have a rather simple problem I have to solve, well I thought it would be simple, I''ve run into a problem. I think I must be missing something fundamental. I am trying to build a Linux router that simply throttles everything down to certain bandwidths. That is, no priority queuing ...etc, just slow all traffic down to the specified rates, which are 64,128,256,512 kbit. We want

Hi, I want work out a GUI interface for htb and now here comes to the part about adding and removing classes and filters. Here is an example script. TC="tc" DEV="dev eth1" echo "Add root qdisc, default traffic go to 1:30" $TC qdisc add $DEV root handle 1: htb default 30 echo "Divide the traffic into different classes and levels" # -------- level 1

Dear List, I am a tc newbie, and I''ve been working through the LARTC HOWTO to try to understand how qdiscs, classes, and filters fit together. I was confused by the example in section 9.5.5.1 (see excerpt below). I thought that classes were could only be attached to qdiscs (classful ones). In the example, however, classes are being attached to other classes. Can anybody explain to me

tc qdisc add dev eth0 root sfq perturb 10 I want to set perturb to 8 then i used this tc qdisc add dev eth0 root sfq perturb 8 system give me the following message RTNETLINK file exists I delete the rule by this :"tc qdisc del dev eth0 root sfq perturb 10" please tell me how can i delete the rule by another way and where is "RTNETLINK file"

Hi, I am trying to do both ingress and egress bandwidth management on a bridge. eth0 is the WAN interface. IPTraf shows that the following script is running successfully and it limits bandwidth both ways to 256 KB However when I want to see the statistics using tc - it only shows me stats for htb class and not for ingress class. The tc output is as follows: tc -s -d class show dev eth0 class

Hello, I am trying to get the TC command to work on our debian box to limit traffic in and out to 12 Meg. The command I am using is: tc qdisc add dev eth0 root tbf rate 12000kbit latency 25ms burst 1600 tc qdisc add dev eth1 root tbf rate 12000kbit latency 25ms burst 1600 The problem I am having is that the bandwidth exceeds the 12 Meg by almost 5 Meg. Any help is appreciated.

The docs[1][2] suggest it''s 1024, but tc says something else: # tc qdisc add dev eth0 root tbf rate 1kbps latency 50ms burst 1500 # tc -s qdisc ls dev eth0 qdisc tbf 8009: rate 8000bit burst 1499b lat 48.8ms ^^^^^^^ Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 If 1k were 1024, then I would have 8192bit above.

Hi, Can anyone point me out where the script below is wrong? All I want is that host 172.31.1.1 can only use 10 megabit. If I run this script on the in-between router nothing happens (the host uses still the full 100 mbit, tested with iperf) , so i assume that something must be wrong.... #!/bin/sh # LAN1 NIC tc qdisc del dev eth0 root tc qdisc add dev eth0 root handle 1: htb tc class add dev

Hello.. I have a linux box and I want to make priority on traffic generated by my LAN''s computers.. I don''t have a guaranted bandwidth, so I wanna use sfq... I want to make traffic to port 80 , 443 , 25 & 110 PRIORITY 1 Traffic src or dest 192.168.0.2 to make priority 2 And the rest to put it in proiority 3.. I did the following : tc qdisc add dev eth0 root handle 1:

Correct me if I''m wrong, I just want to help my friend who needs a tc solution with fairness to hosts on a 512K/s DSL line, but few of them should be restricted to 64K/s I thought about htb + esfq (sfq with ip based fairness, not connection) parent class with CEIL=500Kbit (no RULE? see *1) and attached esfq to this parent class, now child class with CEIL=64Kbit and RULE=10.0.0.1

I want to implement a snmp-agent to measure the bandwidth traffic per flow in a linux router. Is there any way to use tc in bash scripts in order to measure the bandwidth? In my first thought, the agent would fire repeatedly tc commands that would return the rate /flow. Is that speculation correct? Do you propose an alternative way to measure the bandwith through an agent. I found somewhere

hi, all i run the following scripts : tc qdisc add dev eth0 handle ffff: ingress tc filter add dev eth0 parent ffff: protocol ip \ pref 4 u32 match ip dst 10.0.0.1 flowid :1 my question is : can i know how many packets are matched by this filter? if i can , what should i do to get this counter value, then. thanks :) _________________________________________________________________ MSN

Hello , I have installed Tc and have problems running basic tc commands for PRIO qdisc . I tried tc qdisc add dev eth0 handle 1 root prio Result : Invalid argument tc qdisc add dev eth0 root handle 1: prio Result : Invalid argument What could be the problem.? Regards Andre --------------------------------- With Yahoo! Mail you can get a bigger mailbox -- choose a size that fits

I have an htb qdisc setup and it is shaping my traffic wonderfully but I''ve just recently started taking a look at the output from the command tc -s class ls dev eth? Looking at the "rate" line I thought to myself..."cool I can use this to graph throughput avg.es without having to worry about the "Sent bytes" rolling over or being lost when the htb qdisc is

Hi guys, I''m new to TC HTB traffic shaping.... I installed it at my first try on my Bearing Leaf Router/Firewall I use the tc -s class show dev eth? To see my output All looks dandy and nice, but it''s figures, of which at current momment looks like French to me, I would like to see exactly what these figures looks like in a GRAPH style... I know I can use MRTG, I do have

Hi everybody! I''ve been trying with htb and tc filter. It seemed to work fine, but after testing with ethloop I''ve realized that traffic is not being distributed through the leaves as I thought. When sending packets to 1:10 and 1:11 at the same time, there''s no bandwidth sharing. There''s no traffic through 1:11 until traffic through 1:10 has finished. Though

Hi, Will TC work on 2.4.21 kernel without any patches? If it does, why tc command failed? For example, # tc qdisc show dev eth0 RTNETLINK answers: Invalid argument Dump terminated Thank you for your help! Reed --------------------------------- Do you Yahoo!? Yahoo! Small Business $15K Web Design Giveaway - Enter today