Re: [LARTC] link redundancy...
That could be done with a simple shell script, just pinging and switching if host doesn't respond. Otherwise u could use something more complex such as BGP, but I really don't think your ADSL provider allows yo to ibgp peer with them :/ On Fri, 9 Apr 2004 16:19:03 -0300 "Cristiano Soares" <[EMAIL PROTECTED]> wrote: > Does anyone know how to make a link redundancy? I have two ADSL lines, and i want > the linux machine to be able to switch between the two lines everytime the first > ADSL line goes down. Thanks a lot. > > Cristiano > ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Re: [LARTC] link redundancy...
On Fri, Apr 09, 2004 at 04:19:03PM -0300, Cristiano Soares wrote: >Does anyone know how to make a link redundancy? I have two ADSL lines, and >i want the linux machine to be able to switch between the two lines >everytime the first ADSL line goes down. Thanks a lot. > >Cristiano You'll need BGP4 support for this. GNU Zebra[1] may help you here. [1] www.zebra.org -- Paolo Alexis Falcone [EMAIL PROTECTED] ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] HTB
Hello, I have problems with htb. The problem is that when I download any file via shaper with htb, the traffic is very dinamic, it jumps, for example: if i have set ceil = 128kbit the results that it jumps from 112kbps to 144kbps or smth like that maybe its not very bad, but when the traffic drops down to 40kbps or less and then after 1 or 2 seconds jumps to 144kbps, its bad :-( and it is often. Root class is 20Mbit There are about 7000 classes (on two interfaces) an example script: === #!/bin/sh TC="/sbin/tc" INT_IF="eth1" EXT_IF="eth0" $TC qdisc del dev $INT_IF root $TC qdisc del dev $EXT_IF root $TC qdisc add dev $INT_IF root handle 1: htb r2q 1 default 2000 # tried default r2q $TC qdisc add dev $EXT_IF root handle 1: htb r2q 1 default 2000 $TC class add dev $INT_IF parent 1: classid 1:1 htb quantum 6 rate 20Mbit ceil 20Mbit $TC class add dev $EXT_IF parent 1: classid 1:1 htb quantum 4 rate 20Mbit ceil 20Mbit $TC class add dev $INT_IF parent 1:1 classid 1:2000 htb quantum 1500 rate 1kbit ceil 5kbit $TC class add dev $EXT_IF parent 1:1 classid 1:2000 htb quantum 1500 rate 1kbit ceil 5kbit $TC qdisc add dev $INT_IF parent 1:2000 handle 2000: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2000 handle 2000: sfq perturb 10 $TC class add dev $INT_IF parent 1:1 classid 1:2001 htb quantum 6 rate 682kbit ceil 2048kbit # tried to let htb itself calculate quantum, the same $TC class add dev $EXT_IF parent 1:1 classid 1:2001 htb quantum 6 rate 682kbit ceil 2048kbit $TC qdisc add dev $INT_IF parent 1:2001 handle 2001: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2001 handle 2001: sfq perturb 10 $TC filter add dev $INT_IF protocol ip parent 1:0 prio 1 u32 match ip dst x.x.x.x flowid 1:2001 $TC filter add dev $EXT_IF protocol ip parent 1:0 prio 1 u32 match ip src x.x.x.x flowid 1:2001 $TC class add dev $INT_IF parent 1:1 classid 1:2002 htb quantum 1500 rate 42kbit ceil 128kbit $TC class add dev $EXT_IF parent 1:1 classid 1:2002 htb quantum 1500 rate 42kbit ceil 128kbit $TC qdisc add dev $INT_IF parent 1:2002 handle 2002: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2002 handle 2002: sfq perturb 10 $TC filter add dev $INT_IF protocol ip parent 1:0 prio 1 u32 match ip dst x.x.x.x flowid 1:2002 $TC filter add dev $EXT_IF protocol ip parent 1:0 prio 1 u32 match ip src x.x.x.x flowid 1:2002 linux 2.4.25 network cards: eepro100 HTB 3 Xeon 2.4GHz Maybe I need to tune kernel, HZ or smth? sorry for bad english -- Arturas ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Re: HTB
Hello, I have problems with htb. The problem is that when I download any file via shaper with htb, the traffic is very dinamic, it jumps, for example: if i have set ceil = 128kbit the results that it jumps from 112kbps to 144kbps or smth like that maybe its not very bad, but when the traffic drops down to 40kbps or less and then after 1 or 2 seconds jumps to 144kbps, its bad :-( and it is often. Root class is 20Mbit There are about 7000 classes (on two interfaces) an example script: === #!/bin/sh TC="/sbin/tc" INT_IF="eth1" EXT_IF="eth0" $TC qdisc del dev $INT_IF root $TC qdisc del dev $EXT_IF root $TC qdisc add dev $INT_IF root handle 1: htb r2q 1 default 2000 # tried default r2q $TC qdisc add dev $EXT_IF root handle 1: htb r2q 1 default 2000 $TC class add dev $INT_IF parent 1: classid 1:1 htb quantum 6 rate 20Mbit ceil 20Mbit $TC class add dev $EXT_IF parent 1: classid 1:1 htb quantum 4 rate 20Mbit ceil 20Mbit $TC class add dev $INT_IF parent 1:1 classid 1:2000 htb quantum 1500 rate 1kbit ceil 5kbit $TC class add dev $EXT_IF parent 1:1 classid 1:2000 htb quantum 1500 rate 1kbit ceil 5kbit $TC qdisc add dev $INT_IF parent 1:2000 handle 2000: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2000 handle 2000: sfq perturb 10 $TC class add dev $INT_IF parent 1:1 classid 1:2001 htb quantum 6 rate 682kbit ceil 2048kbit # tried to let htb itself calculate quantum, the same $TC class add dev $EXT_IF parent 1:1 classid 1:2001 htb quantum 6 rate 682kbit ceil 2048kbit $TC qdisc add dev $INT_IF parent 1:2001 handle 2001: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2001 handle 2001: sfq perturb 10 $TC filter add dev $INT_IF protocol ip parent 1:0 prio 1 u32 match ip dst x.x.x.x flowid 1:2001 $TC filter add dev $EXT_IF protocol ip parent 1:0 prio 1 u32 match ip src x.x.x.x flowid 1:2001 $TC class add dev $INT_IF parent 1:1 classid 1:2002 htb quantum 1500 rate 42kbit ceil 128kbit $TC class add dev $EXT_IF parent 1:1 classid 1:2002 htb quantum 1500 rate 42kbit ceil 128kbit $TC qdisc add dev $INT_IF parent 1:2002 handle 2002: sfq perturb 10 $TC qdisc add dev $EXT_IF parent 1:2002 handle 2002: sfq perturb 10 $TC filter add dev $INT_IF protocol ip parent 1:0 prio 1 u32 match ip dst x.x.x.x flowid 1:2002 $TC filter add dev $EXT_IF protocol ip parent 1:0 prio 1 u32 match ip src x.x.x.x flowid 1:2002 linux 2.4.25 network cards: eepro100 HTB 3 Xeon 2.4GHz Maybe I need to tune kernel, HZ or smth? sorry for bad english -- Arturas ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Load Balancing w/ Proxies
Hello all. I have load balancing (DSL + Cable) ala nano HOWTO + some modifications. Works great. LAN | --- | LOAD | |BALANCER | --- | | Firewall Firewall | | Cable DSL Modem Modem | | Internet Internet I would like to be able to define proxies for certain applications so that I can force them to use a particular interface and thus control if they go out cable vs DSL. You think I could install some kind of proxy on the load balancing box and achieve this or will I need to make two proxy server boxes, one off each external interface on the load balancer? I'm using the load balancer for home office use. I want to specify, say for streaming video to use the cable modem, as it has a much higher download rate. I know I could create some static routes for certain ports (I have already done this using mangle) but I don't want to have to do this every time I configure a new application. By having 'proxies' any application that supports proxy server can be configured for a particular interface. It could be quite convenient. It doesn't need to be a true proxy like Squid, just something to relay the traffic. Any ideas are greatly appreciated, -Ron
[LARTC] Monitoring qdisks and classes.
Are there any tools like iptraf or top to display tc stats? I would like to see things like flowes(TCP or UDP connections) as well as simple per second stats. I'm trying to monitor my p2p uploads and network connections to see if things are getting into the right class. I used to use mrtg for this, with some perl scripts I wrote. This project of mine has long since bitrotten. __ Do you Yahoo!? Yahoo! Small Business $15K Web Design Giveaway http://promotions.yahoo.com/design_giveaway/ ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] link redundancy...
Does anyone know how to make a link redundancy? I have two ADSL lines, and i want the linux machine to be able to switch between the two lines everytime the first ADSL line goes down. Thanks a lot. Cristiano
Re: [LARTC] tcsim (was: Can I give more bandwidth to a specific URL)
On Tuesday 06 April 2004 17:29, Jason Boxman wrote: > On Tuesday 06 April 2004 05:17, Martin A. Brown wrote: > > > > If you are just starting out with traffic control under Linux, I strongly > > recommend learning and using tcng from the beginning. The control > > language offered by tcng (although technical) is much more like English > > or human language than the more arcane tc syntax. Here are some starting > > points for learning about tcng [4] [5]. (Lest there be any doubt, you > > will need tc, from iproute2, as well as tcng.) > > Speaking of TCNG, I read through the various guides and I still can't > figure out how I am supposed to be using tcsim. While I can get it to > output information and graph it, the output does not mean anything to me. > I was expecting output similar to what appears on the HTB author's Web > site, since that means a lot more to me. > > What is tcsim telling me exactly? Does no one use tcsim? > Thanks! > > > > > -Martin > > > > [0] http://lartc.org/ > > [1] http://www.docum.org/ > > [2] http://www.docum.org/stef.coene/qos/faq/cache/ > > [3] http://tldp.org/HOWTO/Traffic-Control-HOWTO/ > > [4] http://tldp.org/HOWTO/Traffic-Control-tcng-HTB-HOWTO/ > > [5] http://linux-ip.net/gl/tcng/ > ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Re:Multipath Masquerade
Donât mind my previous post â I figured out the issue, I wasnât properly setting broadcast addresses in the appropriate areas. I rewrote my script to take this into account and it works great now â ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Re: [LARTC] tc command failed on 2.4.21 kernel
On Thursday 08 April 2004 00:06, Reed Zhou wrote: > 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 Do you run a kernel with QOS support ? Stef -- [EMAIL PROTECTED] "Using Linux as bandwidth manager" http://www.docum.org/ ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Multipath IP Masquerade
Previously I attempted load balancing between 3 interfaces with limited bandwidth but a common gateway with much more bandwidth using QoS and teql. This had little to know luck because routes never seemed to come out right. Someone pointed me in the direction of http://www.ssi.bg/~ja/nano.txt to try and set up a multipath route instead. After setting this up it seems that all of the routes are always through eth0 instead of diving up between eth3 and eth1 as well. Could someone give me some direction why this is happening or what I could do to fix it? ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] controlling uplinks per ip
hi all, Newibe to tc and cbq i have a linux (rh9) machine having one ethernet (eth0-public ip) to internet and second int (eth1) private ip ,to which all my workstation connects. scenario: --|eth0--Linux Server---eth1|--192.168.2.11 i have used the following commands and my client 192.168.2.11 is limited it's downlink to 96Kbit and it works great. now i want 192.168.2.11 not to upload to outside world crossing 32Kbits. how do i do this?. script that works for only downloads. --- tc qdisc add dev eth1 root handle 10: cbq bandwidth 10Mbit avpkt 1000 tc class add dev eth1 parent 10:0 classid 10:1 cbq bandwidth 10Mbit rate 10Mbit allot 1514 weight 1Mbit prio 8 maxburst 20 avpkt 1000 tc class add dev eth1 parent 10:1 classid 10:100 cbq bandwidth 10Mbit rate 96kbit allot 1514 weight 10kbit prio 6 maxburst 20 avpkt 1000 bounded tc qdisc add dev eth1 parent 10:100 sfq quantum 1514b perturb 15 tc filter add dev eth1 parent 10:0 protocol ip prio 100 u32 match ip dst 192.168.2.11 flowid 10:100 tc -d qdisc - Thanks in ADv... Paras. ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
[LARTC] Bandwidth limiting for each computer in subnet
Dear members I'm new to this list and also new to tc command. I have a subnet with over 30 pc which have ip addresses from 172.16.1.1/16 range.I want that each computer in my subnet can work with internet with maximum 6k for download and maximum 6k for upload.when i run the following tc commands from my bridge the first pc works well but the second pc can not work with 6k and it has an almost dead connection with internet.I think somethings goes wrong because i want that each computer has 6k bandwith no all computer have 6 bandwith togeather...! can any one help me -- tc qdisc del dev eth0 root 2>/dev/null tc qdisc del dev eth1 root 2>/dev/null tc qdisc add dev eth0 root handle 10: cbq bandwidth 100Mbit avpkt 1000 cell 8tc qdisc add dev eth1 root handle 11: cbq bandwidth 100Mbit avpkt 1000 cell 8 tc class add dev eth0 parent 10:0 classid 10:3 cbq \ allot 1514 cell 8 maxburst 20 avpkt 1000 prio 3 \ bandwidth 48Kbit rate 48Kbit weight 1Kbit boundedtc qdisc add dev eth0 parent 10:3 sfq quantum 48Kbittc filter dev eth0 parent 10:0 protocol ip prio 1 u32 flowid 10:3 \ match ip src 172.16.1.1/16 Do you Yahoo!? Yahoo! Small Business $15K Web Design Giveaway - Enter today
Re: [LARTC] Squid + shaping question
Teodor Yantchev wrote: Hi folks, So, I have a pretty simple setup - a linux router machine running as a firewall/router for a small neighborhood LAN (approx 20 machines). I also have squid running on the box in non-transparent mode, and also I have set up NAT for TCP/UDP ports above 1024 for all clients and SSH/POP/SMTP/CVS NAT'd for selected ones based on MAC filtering. No hosts whatsoever can access ports 80 and 443 without going through squid. The uplink to the internet is 512kbit/s downstream and 64kbit/s upstream cable modem connected on eth1 (LAN on eth0, no DMZ). When the LAN started to grow from a few well known friends of mine to more people I didn't know so well 'social shaping' stopped working for us - bulk downloaders started to saturate the link so badly that I even couldn't use acceptably ssh from outside. So - the usual solution - www.lartc.org. I did a lot of reading on the topic (This really got me interested in) and finally ended up installing a self-modified version of wondershaper on the external interface. This did solve the problem of me having usable ssh from my office to the router machine, and the ingress qdisc partially solved the problem of the downlink being fairly distributed between all incoming connections - but as most of you know this is a half-baked bread. What I think should be done is shaping the internal interface - BUT - the squid in-between causes trouble. So the question is - How to differentiate between traffic served from squid's cache and traffic squid got directly from the internet ? Shaping/policing all web traffic negates the benefits of having a caching proxy pretty much. After lots of googling and reading(at one point I was ready to completely forget squid) a came up with the following alternatives, both found on the FAQ section of www.docum.org - 'SQUID zero penalty for HIT traffic patch' by a fellow bulgarian Marin Stavrev, and a patch giving you the ability to 'use ACL lists to put packets in classes' by a guy named Patrick. I'd like to ask you for your experiences with those, which one is better, any other alternatives you know of and of course general recipes/recommendations for solving my problem. You could shape on just the internet link using IMQ with the NAT patch to control traffic from the inet to squid. You can already shape up traffic - 64K for 20 machines isn't nice, but you can still do it if interactive traffic is less. Given the other answers - I may be missing something, I've never used squid, but can shape local destined bittorrent OK. Andy. ___ LARTC mailing list / [EMAIL PROTECTED] http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
