OFri, 30 Oc2015 08:19:15 +0000 Ulf LindgreM <ulf.m.lindgren aericsson.com> wrote: > Hi, > > Havnoticed thasometimes packets which just shall be delayed are stuck or lost, i.e never sent out at all from Netem. > > Ialways happens on thsame interface which the delay is enabled on. > > I used ilikthis: > > tc qdisc add dev eth5.2209 roonetedelay 7ms 5ms 25% > > I sepackets stuck/losfor around 3-4 secs. on eth5 outgoing traffic. > Probleseen abouonce / 2 hours and then only for 3-4 seconds. > > I havWiresharks logs availablon both side of Netem PC which shows this problem? > > 10Gb/s Ethernecard and 64 biLiunx used: > > ?unam-a > Linux selillisa016 3.0.13-0.27-defaul#1 SMP Wed Feb 15 13:33:49 UTC 2012 (d73692b) x86_64 x86_64 x86_64 GNU/Linux? > > Is this kind of probleseen befor? > > Thanks /Ulf > > I was hoping someonelswould answer, .. You mightry looking athe queue length statistics with tc. Frorbarger aecdata.com Fri Nov 20 13:26:42 2015 From: rbarger aecdata.co(Richard Barger) Date: Fri, 20 Nov 2015 08:26:42 -0500 Subject: Jitter Control Message-ID: <001401d12397$198893b0$4c99bb10$@ecdata.com> Hello, Wneed to control Jitter withouPacket Re-ordering. Our Jitter requirements arin 1-2ms increments. Can you help mto understand how we caachievthis in NetEm without packet reordering ? Sincerely, Richard Barger, Director of Sales EasCoasDatacom, Inc. 245 Gus Hipp Blvd., STE 3 Rockledge, FL 32955 U.S.A. Tel: (321) 637-9922 Ext: 1 Fax: (321) 637-9980 Web: www.ecdata.com Frostephen anetworkplumber.org Sun Nov 22 20:04:19 2015 From: stepheanetworkplumber.org (Stephen Hemminger) Date: Sun, 22 Nov 2015 12:04:19 -0800 Subject: Jitter Control In-Reply-To: <0db84b10d56b453c9f73c9782b0b2027@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> References: <0db84b10d56b453c9f73c9782b0b2027@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> Message-ID: <20151122120419.4e374def@xeon-e3> OFri, 20 Nov 2015 13:26:42 +0000 Richard Barger <rbarger aecdata.com> wrote: > Hello, > > Wneed to control Jitter withouPacket Re-ordering. Our Jitter > requirements arin 1-2ms increments. Can you help mto understand how we > caachievthis in NetEm without packet reordering ? > > Sincerely, > > Richard Barger, Director of Sales > EasCoasDatacom, Inc. > 245 Gus Hipp Blvd., STE 3 > Rockledge, FL 32955 U.S.A. > Tel: (321) 637-9922 Ext: 1 > Fax: (321) 637-9980 > Web: www.ecdata.com > > > _______________________________________________ > Netemailing list > Netealists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/netem You need to replacthinternal time ordered fifo with a pure fifo. Thouof date web page has some details http://www.linuxfoundation.org/collaborate/workgroups/networking/netem#Packet_re-ordering Frojackson.menezes adexceldesigns.com Thu Nov 26 13:23:33 2015 From: jackson.menezes adexceldesigns.co(Jackson Preetham Menezes) Date: Thu, 26 Nov 2015 18:53:33 +0530 Subject: NetEquerries Message-ID: <430CFF3583611447A2950F7E826A30A1033656B3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> Hi, 1.By defaulwhich delay distribution is used by NetE? Is it normal or uniform? Ubuntu mapagand many webpages stating that normal distribution by default, But kernel functiotabledisin net/sched/sch_netem.c telling uniform distribution by default. I astill confused abouthis. 2.I tried to rufollowing command : tc qdisc add dev eth0 netedelay 100ms 10ms distribution uniform I got, No distributiodata for unifor(/usr/lib//tc//uniform.dist: No such file or directory) Segmentatiofault Any suggestions would bappreciated. -------------- nexpar-------------- AHTML attachmenwas scrubbed... URL: <http://lists.linuxfoundation.org/pipermail/netem/attachments/20151126/05db5e0c/attachment.html>
