[mpls-linux-general] Can you help me? (I'm trying to see if my pc works well with MPLS on linux befo
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[mpls-linux-general] Can you help me? (I'm trying to see if my pc works well with MPLS on linux before set another pc)
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From: <e7...@ti...> - 2003-03-18 10:02:01
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I' ve looked the URL that you've indicated to me. Before starting to ins= tall UML kernel, patching it and try to use it for my scope (test my pc and see if it works well with MPLS on Linux) i would know if you (or someone that you know) has just used UML kernel to test networking (in particular= MPLS), if there are any problems with it and , in this case, which kind of problems there are. Could you help me?Thanks in advance >-- Messaggio Originale -- >Date: Tue, 11 Mar 2003 10:36:44 -0600 >From: "James R. Leu" <jl...@mi...> >To: e7...@ti... >Subject: Re: [mpls-linux-general] mpls-linux speed test. >Reply-To: jl...@mi... > > >Look into using user-mode-linux: >http://sf.net/projects/user-mode-linux/ > > >On Tue, Mar 11, 2003 at 11:23:28AM +0100, e7...@ti... wrote: >> Can i test my pc without use another pc? In which way? I'd like to tes= t >> my pc before set another personal computer with mpls features >> >-- Messaggio Originale -- >> >Date: Mon, 10 Mar 2003 12:37:50 -0600 >> >From: "James R. Leu" <jl...@mi...> >> >To: e7...@ti... >> >Subject: Re: [mpls-linux-general] mpls-linux speed test. >> >Reply-To: jl...@mi... >> > >> > >> >mpls-linux/utils/README >> > >> >On Mon, Mar 10, 2003 at 05:06:38PM +0100, e7...@ti... wrote: >> >> i haven't found the example you say >> >> Can you specify better where it is? >> >> Thanks >> >> >-- Messaggio Originale -- >> >> >Date: Mon, 10 Mar 2003 10:28:27 -0600 >> >> >From: "James R. Leu" <jl...@mi...> >> >> >To: e7...@ti... >> >> >Subject: Re: [mpls-linux-general] mpls-linux speed test. >> >> >Reply-To: jl...@mi... >> >> > >> >> > >> >> >To verify that you have a MPLS kernel look in /proc/net/ you shoul= d >> >> >see some mpls_* files. You can follow the examples in the mpls-li= nux >> >> >READMEs to test it out for yourself. >> >> > >> >> >The RSVP-TE for mpls-linux homepage is: >> >> >http://dsmpls.atlantis.rug.ac.be/ >> >> > >> >> >On Mon, Mar 10, 2003 at 01:51:44PM +0100, e7...@ti... wrote: >> >> >> Excuse me if i ask always you but how can i see if my mpls-kern= el >> work >> >> >> correctly? I've downloaded klinux-kernel-2.4.20 with the patch mpls >> >-linux >> >> >> -1.172.tar. I've compiled the new kernel with the patch. I've to= >choose >> >> >> between RSVP-TE and LDP (CR-LDP). I would choose RSVP because, from >> >the >> >> >> documents i've read, it supports Traffic Engineering and QoS (in= stead >> >> LDP >> >> >> doesn't support them). I've to test MPLS QoS and then i would do= >this >> >> choice. >> >> >> Is it correct? >> >> >> Thanks >> >> >> >> >> >> >-- Messaggio Originale -- >> >> >> >From: "James R. Leu" <jl...@mi...> >> >> >> >To: Radu Dragos <dr...@ee...> >> >> >> >Cc: mpl...@li... >> >> >> >Subject: Re: [mpls-linux-general] mpls-linux speed test. >> >> >> >Reply-To: jl...@mi... >> >> >> >Date: Fri, 7 Mar 2003 12:53:37 -0600 >> >> >> > >> >> >> > >> >> >> >These are cool results, I would very interested to see the resu= lts >> >with >> >> >> >GigE interfaces. I would be nice to see if these same results cam >> >be >> >> >> >achived by others. Also I think testing with traffic on _many_= >LSPs >> >> >> >would be interesting. >> >> >> > >> >> >> >At some point I would like to concetrate on LER speed as well :-/ >> >> >> > >> >> >> >Laters >> >> >> > >> >> >> >On Fri, Feb 28, 2003 at 12:26:57PM +0000, Radu Dragos wrote: >> >> >> >> Hi all. >> >> >> >> >> >> >> >> Read this if you are interestet in some mpls-linux forwarding= >speed >> >> > >> >> >> issues. >> >> >> >> >> >> >> >> Based on a discution with Jim on the IRC channel: #mpls@irc.f= reenode.net >> >> >> >> I run the following test using a DataQualityAnalizer(DQA): >> >> >> >> >> >> >> >> The idea is to stress a MPLS enabled Linux box (AMD 850MHZ, 256M >> >RAM, >> >> >> RH7.3, >> >> >> > >> >> >> >> linux-2.4.19) in order to verify the capability of the mpls-l= inux >> >> >> >> >> >> implementation to forward large bandwidths of traffic. >> >> >> >> >> >> >> >> This is the framework I used: >> >> >> >> >> >> >> >> 192.168.254.7 192.168.254.25 >> >> >> >> eth1 ------------------------> analyzer interface (AI) >> >> >> >> ^ >> >> >> >> mpls-linux | fwd DQA >> >> >> >> | >> >> >> >> eth0 <------------------------ traffic generator interface= >(TGI) >> >> >> >> 192.168.100.2 192.168.100.1 >> >> >> >> >> >> >> >> All the interfaces are 100Mbps Ethernet. >> >> >> >> >> >> >> >> 1. Small packets (IP only no MPLS labels) >> >> >> >> TGI sends TCP/IP traffic src=3D192.168.100.1 dst=3D192.168.2= 54.25 >> >> >> >> packet size 64 Bytes >> >> >> >> transmitted data rate: 76Mbps >> >> >> >> At this rate, ~150000 packets/s the linux machine is flooded and >> >CPU >> >> >> >> >> >> >> overloaded >> >> >> >> AI gets only ~174 packets/s >> >> >> >> 2. Large packets (IP only no MPLS labels) >> >> >> >> TGI sends TCP/IP traffic src=3D192.168.100.1 dst=3D192.168.25= 4.25 >> >> >> >> packet size 1500 Bytes >> >> >> >> transmitted data rate: ~98Mbps >> >> >> >> At this rate ~8200 packets/s the linux machine behaves well >> >> >> >> AI gets all the packets at the same rate TGI is transmitting.= >> >> >> >> >> >> >> >> 3. Large packets MPLS enabled >> >> >> >> TGI sends TCP/IP traffic src=3D192.168.100.1 dst=3D192.168.2= 54.25(MPLS >> >> >label >> >> >> >16) >> >> >> >> packet size 1500 Bytes >> >> >> >> transmitted data rate: ~98Mbps >> >> >> >> All the MPLS packets received at eth0 were forwarded to AI. No >> packet >> >> >> was >> >> >> >lost >> >> >> >> as you can see from /proc/net/mpls* : >> >> >> >> >> >> >> >> 0x40004000 718224/1064407968/0 gen 16 0 1 POP FWD(0x00000002)= >> >> >> >> eth0 0 6 >> >> >> >> eth1 0 28 >> >> >> >> 0x00000002 718224/1061535072/0 2 PUSH(gen 16) SET(eth1,192.16= 8.254.25) >> >> >> >> >> >> >> >> No significant CPU load was observed. >> >> >> >> The mpls for linux implementation is able to forward packets at >> FastEthernet >> >> >> > >> >> >> >> speeds. >> >> >> >> >> >> >> >> I poses Gbit Ethernet interfaces for PS. Unfortunately I only= >have >> >> one >> >> >> >Gbit >> >> >> >> interface on DQA. Therefore, for the moment I can not run tes= ts >> at >> >> Gbit >> >> >> > >> >> >> >> speed. >> >> >> >> >> >> >> >> It remains now to analise the results in order to establish the >> delay >> >> >> >> >> >> >> introduced by the MPLS forwarding plane. >> >> >> >> >> >> >> >> Also, it remains the issue of variable size packets. >> >> >> >> >> >> >> >> All the comments or suggestions are wellcome. >> >> >> >> >> >> >> >> Radu >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------- >> >> >> >> This sf.net email is sponsored by:ThinkGeek >> >> >> >> Welcome to geek heaven. >> >> >> >> http://thinkgeek.com/sf >> >> >> >> _______________________________________________ >> >> >> >> mpls-linux-general mailing list >> >> >> >> mpl...@li... >> >> >> >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-gener= al >> >> >> > >> >> >> >-- >> >> >> >James R. Leu >> >> >> > >> >> >> > >> >> >> >------------------------------------------------------- >> >> >> >This SF.net email is sponsored by: Etnus, makers of TotalView, The >> >debugger >> >> >> > >> >> >> >for complex code. Debugging C/C++ programs can leave you feelin= g >> lost >> >> >and >> >> >> > >> >> >> >disoriented. TotalView can help you find your way. Available on= >major >> >> >UNIX >> >> >> > >> >> >> >and Linux platforms. Try it free. www.etnus.com >> >> >> >_______________________________________________ >> >> >> >mpls-linux-general mailing list >> >> >> >mpl...@li... >> >> >> >https://lists.sourceforge.net/lists/listinfo/mpls-linux-general= >> >> >> >> >> >> >> >> >> ________________________________________________________________= __ >> >> >> Tiscali ADSL, fino a 9 MESI GRATIS sull'offerta Tiscali ADSL Lig= ht >> Mega! >> >> >> Tiscali ADSL non teme confronti! Abbonati subito. >> >> >> http://point.tiscali.it/adsl/index.shtml >> >> >> >> >> >> >> >> > >> >> >-- >> >> >James R. Leu >> >> >> >> >> >> __________________________________________________________________ >> >> Tiscali ADSL, fino a 9 MESI GRATIS sull'offerta Tiscali ADSL Light Mega! >> >> Tiscali ADSL non teme confronti! Abbonati subito. >> >> http://point.tiscali.it/adsl/index.shtml >> >> >> >> >> > >> >-- >> >James R. Leu >> >> >> __________________________________________________________________ >> Tiscali ADSL, fino a 9 MESI GRATIS sull'offerta Tiscali ADSL Light Meg= a! >> Tiscali ADSL non teme confronti! Abbonati subito. >> http://point.tiscali.it/adsl/index.shtml >> >> > >-- >James R. Leu __________________________________________________________________ Tiscali ADSL, fino a 9 MESI GRATIS sull'offerta Tiscali ADSL Light Mega! Tiscali ADSL non teme confronti! Abbonati subito. http://point.tiscali.it/adsl/index.shtml |
