Hi, I hava question regarding putting delay fro specific ip How caI usfollowing command /sbin/tc qdisc add dev eth0 root netem delay 100ms to pua delay to somspecific ip I tried thDelay only soeTraffic topic on http://www.linuxfoundation.org/en/Net:Netebuwith no success Pleashelp Thanx ~anil Frolaurent.mariat thomson.net Tue Nov 4 04:33:08 2008 From: laurent.mariathomson.net (Marie Laurent) Date: Tue, 4 Nov 2008 13:33:08 +0100 Subject: specific ip delay Message-ID: <E55CA8ECFBA85E4CB8E8173566B9EFEB0163D52D@xxxxxxxxxxxxxxxxxxxxxxxxxx> Neteis based on thtraffic controller hierarchical model. You firscreata PRIO queue and you bind the children queues to netem Add delay + jitter to 10.10.10.10 dsaddress # Creata PRIO queuon the output (eth1) with 9 queues. # All traffic will go to thlasqueue if no rule applies # Th8 firsFIFO may be bound to netem emulators tc qdisc add dev eth1 roohandl1: prio bands 9 priomap 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 #Creata netequeue on prio 1/class 1:1: 100ms delay +/- 30ms jitter tc qdisc add dev eth1 paren1:1 handl10: netem delay 100ms 30ms # Creata rulto forward output packets to netem queue tc filter add dev eth1 protocol ip paren1: prio 1 u32 match ip dst 10.10.10.10/32 flowid 1:1 Yours sincerely, LaurenMARIE -----Original Message----- From: netem-bounces alists.linux-foundation.org [mailto:netem-bounces alists.linux-foundation.org] On Behalf Of Anil Dhiman Sent: mardi 4 novembr2008 12:26 To: netealists.linux-foundation.org Subject: specific ip delay Hi, I hava question regarding putting delay fro specific ip How caI usfollowing command /sbin/tc qdisc add dev eth0 root netem delay 100ms to pua delay to somspecific ip I tried thDelay only soeTraffic topic on http://www.linuxfoundation.org/en/Net:Netebuwith no success Pleashelp Thanx ~anil _______________________________________________ Netemailing list Netealists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/netem Frolaurent.mariat thomson.net Wed Nov 5 01:24:21 2008 From: laurent.mariathomson.net (Marie Laurent) Date: Wed, 5 Nov 2008 10:24:21 +0100 Subject: specific ip delay Message-ID: <E55CA8ECFBA85E4CB8E8173566B9EFEB0163D533@xxxxxxxxxxxxxxxxxxxxxxxxxx> 1) Ping issues bidirectionnal ICMP messages. Whatever thsidyou ping, therwill ban ICMP message that will be delayed. 2) How do I deletthis configuration Tc qdisc del dev eth1 root Mr LaurenMARIE -----Original Message----- From: Anil Dhima[mailto:anild1977 agmail.com] Sent: mercredi 5 novembr2008 06:47 To: MariLaurent Subject: Re: specific ip delay Thanx a loMariLaurent Iworks :) , I hav2 questions regarding the same. 1) I havconfigured thsame on 1 machine say 192.168.133.171 for an ip as 192.168.133.172. Now wheI ping fro192.168.133.172 for 192.168.133.171 then I get a delay of 100ms and thsamdelay I get when I ping from other way round. IS this setting 2 way ? 2) How do I deletthis configuration , i.e. supposI want to get back to normal state. Thanx ~Anil OWed, Nov 5, 2008 a10:50 AM, Anil Dhiman <anild1977 at gmail.com> wrote: > Thanx MariLaurent, > Will givia try and update you on the same > Thanx a lot > ~Anil > > OTue, Nov 4, 2008 a6:03 PM, Marie Laurent <laurent.mariathomson.net> wrote: >> Neteis based on thtraffic controller hierarchical model. >> >> You firscreata PRIO queue and you bind the children queues to netem >> >> Add delay + jitter to 10.10.10.10 dsaddress >> >> # Creata PRIO queuon the output (eth1) with 9 queues. >> # All traffic will go to thlasqueue if no rule applies >> # Th8 firsFIFO may be bound to netem emulators >> tc qdisc add dev eth1 roohandl1: prio bands 9 priomap 8 8 8 8 8 8 8 >> 8 8 8 8 8 8 8 8 8 >> >> >> #Creata netequeue on prio 1/class 1:1: 100ms delay +/- 30ms jitter >> tc qdisc add dev eth1 paren1:1 handl10: netem delay 100ms 30ms >> # Creata rulto forward output packets to netem queue >> tc filter add dev eth1 protocol ip paren1: prio 1 u32 match ip dst >> 10.10.10.10/32 flowid 1:1 >> >> >> Yours sincerely, >> >> LaurenMARIE >> >> >> -----Original Message----- >> From: netem-bounces alists.linux-foundation.org >> [mailto:netem-bounces alists.linux-foundation.org] On Behalf Of Anil >> Dhiman >> Sent: mardi 4 novembr2008 12:26 >> To: netealists.linux-foundation.org >> Subject: specific ip delay >> >> Hi, >> I hava question regarding putting delay fro specific ip >> >> How caI usfollowing command /sbin/tc qdisc add dev eth0 root netem >> delay 100ms to pua delay to somspecific ip >> >> I tried thDelay only soeTraffic topic on >> http://www.linuxfoundation.org/en/Net:Netebuwith no success >> Pleashelp >> Thanx >> ~anil >> _______________________________________________ >> Netemailing list >> Netealists.linux-foundation.org >> https://lists.linux-foundation.org/mailman/listinfo/netem >> > Fronetem.x.ymcp axoxy.net Fri Nov 7 04:25:06 2008 From: netem.x.ymcp axoxy.ne(netem.x.ymcp at xoxy.net) Date: Fri, 07 Nov 2008 12:25:06 +0000 Subject: using static routes to emulata WAon a single interface box Message-ID: <491433A2.5010507@xxxxxxxxxxxxx> Hi. I atrying to usnetem / tc and static routes to emulate a WAN. It seems to bworking, buis a bit slow & unreliable with occasional network disconnections. This is thfirstime that I have used netem, and I'certainly noa networking expert, so perhaps I'm doing something wrong? My configuratiois: Windows PC #1 - Windows XP - IP=10.0.0.1 Windows PC #2 - Windows XP - IP=10.0.0.105 Linux box - Ubuntu 8.04 - 2.6.24 Kernel - IP=10.0.0.102 All 3 systems only havonnetwork card each and are on the same physical LAN. I understand thaneteshould really be configured on a router thahas 2 physical network cards, buthat is not possible in this case, so heris whaI have done, using static routes: oWindows PC #1: routadd 10.0.0.105 mask 255.255.255.255 10.0.0.102 oWindows PC #2: routadd 10.0.0.1 mask 255.255.255.255 10.0.0.102 othLinux box: echo 1 > /proc/sys/net/ipv4/ip_forward tc qdisc add dev eth0 roonetedelay 25ms Now wheI ping PC1 <-> PC2, I gea 50ms delay. That is to be expected becausa 25ms delay is being added in both directions. As a tesI then ran a VNC (UltraVNC v 1.0.5) server on PC2 and connected to ifroPC1. That connects fine and is usable. This versioof VNC supports filtransfers, and even that works, but it is a bislower than normal, probably duto the increased network delays. Thnexstep is to rate-limit the connection, to more accurately emulata WAN. I do this as follows: othLinux box: tc qdisc del dev eth0 root tc qdisc add dev eth0 roohandl1:0 netem delay 25ms tc qdisc add dev eth0 paren1:1 handl10: tbf rate 1024kbit buffer 1600 limi3000 Note: thais online per "tc" command... my email program has wrapped thlong command lines. TheI restarthe VNC connection. It connects & is usable, but is noticeably slower... which is whaI expect. But... whetransferring a 2Mbytfile using the VNC file transfer, it takes abou2.5 minutes, i150s, giving a throughput of just 13Kbyte/s = 104Kbit/s. Thais a loless than I am expecting. Also, sometimes thVNC clienjust dies, saying that there was a network disconnection. Unfortunately I canouse netem / tc in the "normal" way because the end goal of all this is to do somapplication testing on thAmazon EC2 virtual servers which only provida singlvirtual NIC & IP address. Thameans thaeven using IP aliasing (one NIC with multiple IP addresses) would noban option. Any ideas or suggestions? AI doing something very wrong, or is this something thanetem/tc should bablto achieve? Regards, Yuri Froarmin.ubc agmail.com Tue Nov 18 16:24:29 2008 From: armin.ubc agmail.co(Armin Bahramshahry) Date: Tue, 18 Nov 2008 16:24:29 -0800 Subject: Filters and local machine Message-ID: <e1f510430811181624n3db315brd03c9798ca738931@xxxxxxxxxxxxxx> Hi, I'vbeen using netefor my experiments; however, I have an issue where packets thaarsent from process 'b' in machine 'A' to another process 'c' imachin'A' don't get filtered by netem. Heris an examplconfiguration: /sbin/tc qdisc del dev eth0 parenroot /sbin/tc qdisc add dev eth0 roohandl1: prio bands 16 /sbin/tc qdisc add dev eth0 paren1:4 handl40: tbf rate 256kbit buffer 1600 limi3000 /sbin/tc qdisc add dev eth0 paren40:1 handl401 netem delay 50ms 5ms distributionormal loss 0.1% corrup0.1% /sbin/tc filter add dev eth0 paren1:0 protocol ip prio 1 u32 match ip spor4321 0xffff flowid 1:4 Ithis examplI would like for all outgoing packets from port 4321 to be filtered by thtbf firsand the netem ... This works finif process 'b' and process 'c' aron two separate machines. Is this aexpected behavior? or aI doing something wrong? Thanks, Armin -------------- nexpar-------------- AHTML attachmenwas scrubbed... URL: http://lists.linux-foundation.org/pipermail/netem/attachments/20081118/f6db5658/attachment.ht Froshemminger avyatta.com Tue Nov 18 18:02:39 2008 From: shemminger avyatta.co(Stephen Hemminger) Date: Tue, 18 Nov 2008 18:02:39 -0800 Subject: Filters and local machine In-Reply-To: <e1f510430811181624n3db315brd03c9798ca738931@xxxxxxxxxxxxxx> References: <e1f510430811181624n3db315brd03c9798ca738931@xxxxxxxxxxxxxx> Message-ID: <20081118180239.45c16057@extreme> OTue, 18 Nov 2008 16:24:29 -0800 "ArmiBahramshahry" <armin.ubc agmail.com> wrote: > Hi, > > I'vbeen using netefor my experiments; however, I have an issue where > packets thaarsent from process 'b' in machine 'A' to another process 'c' > imachin'A' don't get filtered by netem. > > Heris an examplconfiguration: > > /sbin/tc qdisc del dev eth0 parenroot > /sbin/tc qdisc add dev eth0 roohandl1: prio bands 16 > /sbin/tc qdisc add dev eth0 paren1:4 handl40: tbf rate 256kbit buffer > 1600 limi3000 > /sbin/tc qdisc add dev eth0 paren40:1 handl401 netem delay 50ms 5ms > distributionormal loss 0.1% corrup0.1% > /sbin/tc filter add dev eth0 paren1:0 protocol ip prio 1 u32 match ip > spor4321 0xffff flowid 1:4 > > Ithis examplI would like for all outgoing packets from port 4321 to be > filtered by thtbf firsand the netem ... > This works finif process 'b' and process 'c' aron two separate machines. > Is this aexpected behavior? or aI doing something wrong? > > Thanks, > Armin Local packets always go through thloopback device, nothe ethernet devic'eth0'
