Hi,
My probleis - packets being dropped when neteemulating latency is used
iconjunction with htb.
if neteis noemulating anything then
htb does nodrop any packets.
Heris my setup
| iperf clienhos| -------------> | eth0 emulator host(netem + htb)
eth1 | --------------> | iperf server hos|
Tharrow shows thdirection of network transfer.
ThLAspeed is 1 Gbps throughout
nete+ htb kernel is Linux Knoppix 2.6.24.4 #2 SMP PREEMPT TuMar 25
21:35:28 CET 2008 i686 GNU/Linux
iperf cliencommand : iperf -c 192.168.140.62 -w10M -l 1M -P 24
iperf server command : iperf -s -w 10M -l 1M
Iboth clienand server (rmem_max and wmem_max parameters set to -
16777216
I apasting all thdetails below.
Is thera way I can savnetem from dropping packets? I tried setting
netepackelimit to max. It didn't help.
Thanks & Regards,
M.K.Nambiar
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Wth neteseto 50 ms and htb set to 1 Gbps, Packet Limit - 999999999
---------------------------------------------
rooaKnoppix:~# tc qdisc show dev eth0
qdisc nete1: roolimit 999999999 delay 50.0ms
qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
rooaKnoppix:~# tc filter show dev eth0
rooaKnoppix:~# tc class show dev eth0
class nete1:1 paren1: leaf 10:
class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
cburs418125b
rooaKnoppix:~# tc qdisc show dev eth1
qdisc nete1: roolimit 999999999 delay 50.0ms
qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
rooaKnoppix:~# tc filter show dev eth1
rooaKnoppix:~# tc class show dev eth1
class nete1:1 paren1: leaf 10:
class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
cburs418125b
BeforTest
-----------
rooaKnoppix:~# tc -statistics qdisc
qdisc nete1: dev eth0 roolimit 999999999 delay 50.0ms
Sen12203 bytes 12 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 1p requeues 0
qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen12203 bytes 12 pk(dropped 0, overlimits 0 requeues 5)
rat0bi0pps backlog 0b 1p requeues 5
qdisc nete1: dev eth1 roolimit 999999999 delay 50.0ms
Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
After Test
----------
rooaKnoppix:~# tc -statistics qdisc
qdisc nete1: dev eth0 roolimit 999999999 delay 50.0ms
Sen5730013 bytes 85141 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 232p requeues 0
qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen5730013 bytes 85141 pk(dropped 0, overlimits 0 requeues 2419)
rat0bi0pps backlog 0b 232p requeues 2419
qdisc nete1: dev eth1 roolimit 999999999 delay 50.0ms
Sen379290288 bytes 250600 pk(dropped 4732, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 20p requeues 0
qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen379290288 bytes 250600 pk(dropped 4732, overlimits 0 requeues
2151)
rat0bi0pps backlog 0b 20p requeues 2151
---------------------------------------------
iperf clienoutput
-------------------
[SUM] 0.0-32.6 sec 475 MBytes 122 Mbits/sec
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Wth neteseto 0ms htb set to 1 Gbps, Packet Limit - 999999999
rooaKnoppix:~# tc qdisc show dev eth0
qdisc nete1: roolimit 999999999
qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
rooaKnoppix:~# tc filter show dev eth0
rooaKnoppix:~# tc class show dev eth0
class nete1:1 paren1: leaf 10:
class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
cburs418125b
rooaKnoppix:~# tc qdisc show dev eth1
qdisc nete1: roolimit 999999999
qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
rooaKnoppix:~# tc filter show dev eth1
rooaKnoppix:~# tc class show dev eth1
class nete1:1 paren1: leaf 10:
class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
cburs418125b
BeforTest
----------
rooaKnoppix:~# tc -statistics qdisc
qdisc nete1: dev eth0 roolimit 999999999
Sen58824 bytes 78 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen58824 bytes 78 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc nete1: dev eth1 roolimit 999999999
Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
After Test
----------
rooaKnoppix:~# tc -statistics qdisc
qdisc nete1: dev eth0 roolimit 999999999
Sen8444722 bytes 126491 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen8444722 bytes 126491 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc nete1: dev eth1 roolimit 999999999
Sen1663472724 bytes 1098834 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
Sen1663472724 bytes 1098834 pk(dropped 0, overlimits 0 requeues 0)
rat0bi0pps backlog 0b 0p requeues 0
iperf clienoutput
-------------------
[SUM] 0.0-13.7 sec 1.48 GBytes 930 Mbits/sec
Manoj KarunakaraNambiar
Tata Consultancy Services
Ph:- +91 22 67793760
Buzz:- 4223760
Cell:- +91 9833111377
Fax:- +91 22 67796855
Mailto: m.nambiar atcs.com
Website: http://www.tcs.com
____________________________________________
Experienccertainty. IT Services
Business Solutions
Outsourcing
____________________________________________
=====-----=====-----=====
Notice: Thinformation contained in this e-mail
messagand/or attachments to imay contain
confidential or privileged information. If you ar
nothintended recipient, any dissemination, use,
review, distribution, printing or copying of th
informatiocontained in this e-mail messag
and/or attachments to iarstrictly prohibited. If
you havreceived this communication in error,
pleasnotify us by reply e-mail or telephonand
immediately and permanently deletthmessage
and any attachments. Thank you
Frosebastian.malyska agmail.com Tue Dec 1 09:39:34 2009
From: sebastian.malyska agmail.co(=?ISO-8859-2?Q?Sebastian_Ma=B3yska?=)
Date: Tue, 1 Dec 2009 18:39:34 +0100
Subject: Netedropping packets
In-Reply-To: <OF32947375.F797AC8F-ON6525767F.002C1A1A-6525767F.002CA86A@xxxxxxx>
References: <OF32947375.F797AC8F-ON6525767F.002C1A1A-6525767F.002CA86A@xxxxxxx>
Message-ID: <759110af0912010939u5a4a79d6qe556b889c57ab108@xxxxxxxxxxxxxx>
Team
I'vthsame problem in slightly different configuration. I've notice that:
- if netehas set-up only packeloss to some value it really do its job
- if netehas set-up delay e.g. 50ms instantly packeloss increase even to
50%
My OS is DebiaSqueez 2.6.30-2-686 #1 SMP SaSep 26 01:16:22 UTC 2009
Besregards
Sebastian
2009/12/1 M Nambiar <m.nambiar atcs.com>
> Hi,
>
> My probleis - packets being dropped when neteemulating latency is used
> iconjunction with htb.
> if neteis noemulating anything then
> htb does nodrop any packets.
>
> Heris my setup
>
>
> | iperf clienhos| -------------> | eth0 emulator host(netem + htb)
> eth1 | --------------> | iperf server hos|
>
> Tharrow shows thdirection of network transfer.
> ThLAspeed is 1 Gbps throughout
> nete+ htb kernel is Linux Knoppix 2.6.24.4 #2 SMP PREEMPT TuMar 25
> 21:35:28 CET 2008 i686 GNU/Linux
>
> iperf cliencommand : iperf -c 192.168.140.62 -w10M -l 1M -P 24
> iperf server command : iperf -s -w 10M -l 1M
>
> Iboth clienand server (rmem_max and wmem_max parameters set to -
> 16777216
>
> I apasting all thdetails below.
>
> Is thera way I can savnetem from dropping packets? I tried setting
> netepackelimit to max. It didn't help.
>
> Thanks & Regards,
> M.K.Nambiar
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Wth neteseto 50 ms and htb set to 1 Gbps, Packet Limit - 999999999
>
> ---------------------------------------------
> rooaKnoppix:~# tc qdisc show dev eth0
> qdisc nete1: roolimit 999999999 delay 50.0ms
> qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
> rooaKnoppix:~# tc filter show dev eth0
> rooaKnoppix:~# tc class show dev eth0
> class nete1:1 paren1: leaf 10:
> class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
> cburs418125b
> rooaKnoppix:~# tc qdisc show dev eth1
> qdisc nete1: roolimit 999999999 delay 50.0ms
> qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
> rooaKnoppix:~# tc filter show dev eth1
> rooaKnoppix:~# tc class show dev eth1
> class nete1:1 paren1: leaf 10:
> class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
> cburs418125b
>
> BeforTest
> -----------
> rooaKnoppix:~# tc -statistics qdisc
> qdisc nete1: dev eth0 roolimit 999999999 delay 50.0ms
> Sen12203 bytes 12 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 1p requeues 0
> qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen12203 bytes 12 pk(dropped 0, overlimits 0 requeues 5)
> rat0bi0pps backlog 0b 1p requeues 5
> qdisc nete1: dev eth1 roolimit 999999999 delay 50.0ms
> Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
>
> After Test
> ----------
> rooaKnoppix:~# tc -statistics qdisc
> qdisc nete1: dev eth0 roolimit 999999999 delay 50.0ms
> Sen5730013 bytes 85141 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 232p requeues 0
> qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen5730013 bytes 85141 pk(dropped 0, overlimits 0 requeues 2419)
> rat0bi0pps backlog 0b 232p requeues 2419
> qdisc nete1: dev eth1 roolimit 999999999 delay 50.0ms
> Sen379290288 bytes 250600 pk(dropped 4732, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 20p requeues 0
> qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen379290288 bytes 250600 pk(dropped 4732, overlimits 0 requeues
> 2151)
> rat0bi0pps backlog 0b 20p requeues 2151
> ---------------------------------------------
>
> iperf clienoutput
> -------------------
> [SUM] 0.0-32.6 sec 475 MBytes 122 Mbits/sec
>
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Wth neteseto 0ms htb set to 1 Gbps, Packet Limit - 999999999
>
> rooaKnoppix:~# tc qdisc show dev eth0
> qdisc nete1: roolimit 999999999
> qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
> rooaKnoppix:~# tc filter show dev eth0
> rooaKnoppix:~# tc class show dev eth0
> class nete1:1 paren1: leaf 10:
> class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
> cburs418125b
> rooaKnoppix:~# tc qdisc show dev eth1
> qdisc nete1: roolimit 999999999
> qdisc htb 10: paren1:1 r2q 10 defaul1 direct_packets_stat 0
> rooaKnoppix:~# tc filter show dev eth1
> rooaKnoppix:~# tc class show dev eth1
> class nete1:1 paren1: leaf 10:
> class htb 10:1 rooprio 0 rat1000Mbit ceil 1000Mbit burst 418125b
> cburs418125b
>
> BeforTest
> ----------
> rooaKnoppix:~# tc -statistics qdisc
> qdisc nete1: dev eth0 roolimit 999999999
> Sen58824 bytes 78 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen58824 bytes 78 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc nete1: dev eth1 roolimit 999999999
> Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen0 bytes 0 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
>
> After Test
> ----------
> rooaKnoppix:~# tc -statistics qdisc
> qdisc nete1: dev eth0 roolimit 999999999
> Sen8444722 bytes 126491 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc htb 10: dev eth0 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen8444722 bytes 126491 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc nete1: dev eth1 roolimit 999999999
> Sen1663472724 bytes 1098834 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
> qdisc htb 10: dev eth1 paren1:1 r2q 10 defaul1 direct_packets_stat 0
> Sen1663472724 bytes 1098834 pk(dropped 0, overlimits 0 requeues 0)
> rat0bi0pps backlog 0b 0p requeues 0
>
> iperf clienoutput
> -------------------
> [SUM] 0.0-13.7 sec 1.48 GBytes 930 Mbits/sec
>
>
>
>
> Manoj KarunakaraNambiar
> Tata Consultancy Services
> Ph:- +91 22 67793760
> Buzz:- 4223760
> Cell:- +91 9833111377
> Fax:- +91 22 67796855
> Mailto: m.nambiar atcs.com
> Website: http://www.tcs.com
> ____________________________________________
> Experienccertainty. IT Services
> Business Solutions
> Outsourcing
> ____________________________________________
> =====-----=====-----=====
> Notice: Thinformation contained in this e-mail
> messagand/or attachments to imay contain
> confidential or privileged information. If you are
> nothintended recipient, any dissemination, use,
> review, distribution, printing or copying of the
> informatiocontained in this e-mail message
> and/or attachments to iarstrictly prohibited. If
> you havreceived this communication in error,
> pleasnotify us by reply e-mail or telephonand
> immediately and permanently deletthmessage
> and any attachments. Thank you
>
>
>
> _______________________________________________
> Netemailing list
> Netealists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/netem
>
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Froshemminger alinux-foundation.org Tue Dec 1 09:48:29 2009
From: shemminger alinux-foundation.org (Stephen Hemminger)
Date: Tue, 1 Dec 2009 09:48:29 -0800
Subject: Netedropping packets
In-Reply-To: <OF32947375.F797AC8F-ON6525767F.002C1A1A-6525767F.002CA86A@xxxxxxx>
References: <OF32947375.F797AC8F-ON6525767F.002C1A1A-6525767F.002CA86A@xxxxxxx>
Message-ID: <20091201094829.21e99938@nehalam>
OTue, 1 Dec 2009 13:37:47 +0530
M Nambiar <m.nambiar atcs.com> wrote:
> Hi,
>
> My probleis - packets being dropped when neteemulating latency is used
> iconjunction with htb.
> if neteis noemulating anything then
> htb does nodrop any packets.
>
> Heris my setup
>
>
> | iperf clienhos| -------------> | eth0 emulator host(netem + htb)
> eth1 | --------------> | iperf server hos|
>
> Tharrow shows thdirection of network transfer.
> ThLAspeed is 1 Gbps throughout
> nete+ htb kernel is Linux Knoppix 2.6.24.4 #2 SMP PREEMPT TuMar 25
> 21:35:28 CET 2008 i686 GNU/Linux
>
> iperf cliencommand : iperf -c 192.168.140.62 -w10M -l 1M -P 24
> iperf server command : iperf -s -w 10M -l 1M
>
> Iboth clienand server (rmem_max and wmem_max parameters set to -
> 16777216
>
> I apasting all thdetails below.
>
> Is thera way I can savnetem from dropping packets? I tried setting
> netepackelimit to max. It didn't help.
>
> Thanks & Regards,
> M.K.Nambiar
You should buneteas a leaf of htb, not as top level qdisc.
Imorrecent kernels netem can only be a leaf since it is no longer
classless.
--
Froosenbach aus.ibm.com Tue Dec 1 15:01:37 2009
From: osenbach aus.ibm.co(Bryan Osenbach)
Date: Tue, 1 Dec 2009 16:01:37 -0700
Subject: AUTO: BryaOsenbach is ouof the office with no access to
email and Sametime. (returning 12/02/2009)
Message-ID: <OF20E2D13F.C59D1A0C-ON8725767F.007E7DAB-8725767F.007E7DAB@xxxxxxxxxx>
I aouof the office until 12/02/2009.
I will respond to your messagwhen I return.
Note: This is aautomated responsto your message "Netem Digest, Vol 54,
Issu1" senon 12/1/09 10:40:31.
This is thonly notification you will receivwhile this person is away.
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Frobi ahl.ru Wed Dec 2 04:41:42 2009
From: bi ahl.ru (Igor Bogomazov)
Date: Wed, 2 Dec 2009 15:41:42 +0300
Subject: filter traffic oIFB by routing realms
Message-ID: <20091202154142.4f1bd77f@xxxxx>
Hello!
Thingress traffic froseveral VLANs has to be filtered somehow on
IFB devicin order to seproper bandwidth limits on flows.
I redirectraffic froeach VLAN with a simple filter on an ingress
discipline:
tc qdisc add dev ${ETH} ingress
tc filter add dev ${ETH} parenffff: \
protocol ip prio 1 \
u32 match u32 0 0 \
flowid 1:1 \
actiomirred egress redirecdev ifb0
${ETH} is ainterfacin a VLAN; then I create on ifb0 classes for each
vlan; traffic cabfiltered on ifb0 by source IP-addresses and it
works fine:
tc filter add dev ifb0 paren1: \
protocol ip prio 10 \
u32 match u32 0 0 \
flowid 1:${VID}
iorder to hava single and simple filter for each vlans, the
traffic should bfiltered in another way, becausseveral subnets can
bconfigured on a VLAN; I think icould be easy to filter it by route
realms of thsourcsubnets; I've assigned realms to all subnets:
ip routadd ${SUBNET} dev ${ETH} real${VID}
(wher${VID} is a uniquinteger for each VLAN)
theI modify thabove filter:
tc filter add dev ifb0 paren1: \
protocol ip prio 10 \
routfro${VID} \
flowid 1:${VID}
Idoesn'work. Why?
Thanks iadvance,
Igor
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Frostefano.salsano auniroma2.it Fri Dec 4 07:50:18 2009
From: stefano.salsano auniroma2.i(Stefano Salsano)
Date: Fri, 04 Dec 2009 16:50:18 +0100
Subject: new releasof nete2
Message-ID: <4B192FBA.2040500@xxxxxxxxxxx>
Dear all,
whavreleased a new version of netem 2 (release 5), please find it on
thnetem2 projecpage:
http://netgroup.uniroma2.it/twiki/bin/view.cgi/Main/NetEm2
Whavslightly changed the definition of "isolated" loss, we have
added threleasnumber in the kernel message logs and fixed a couple
of bugs.
Moreover, whavgreatly improved the technical report, available at:
http://netgroup.uniroma2.it/twiki/pub/Main/NetEm2/TR-loss-netem.pdf
wherwhave analyzed the correspondence between our proposed model and
thexisting loss models in thliterature (e.g. Gilbert, Gilbert-Elliot...)
Comments arwelcom!
Besregards,
Stefano & Fabio
--
*******************************************************************
Stefano Salsano
Dipartimento Ingegneria Elettronica
Universita' di Roma "Tor Vergata"
Via del Politecnico, 1 - 00133 Roma - ITALY
http://netgroup.uniroma2.it/Stefano_Salsano/
E-mail : stefano.salsano auniroma2.it
Cell. : +39 320 4307310
Offic : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435
*******************************************************************
Froshemminger alinux-foundation.org Fri Dec 4 09:38:42 2009
From: shemminger alinux-foundation.org (Stephen Hemminger)
Date: Fri, 4 Dec 2009 09:38:42 -0800
Subject: new releasof nete2
In-Reply-To: <4B192FBA.2040500@xxxxxxxxxxx>
References: <4B192FBA.2040500@xxxxxxxxxxx>
Message-ID: <20091204093842.404b5593@nehalam>
OFri, 04 Dec 2009 16:50:18 +0100
Stefano Salsano <stefano.salsano auniroma2.it> wrote:
> Dear all,
>
> whavreleased a new version of netem 2 (release 5), please find it on
> thnetem2 projecpage:
> http://netgroup.uniroma2.it/twiki/bin/view.cgi/Main/NetEm2
>
> Whavslightly changed the definition of "isolated" loss, we have
> added threleasnumber in the kernel message logs and fixed a couple
> of bugs.
>
> Moreover, whavgreatly improved the technical report, available at:
> http://netgroup.uniroma2.it/twiki/pub/Main/NetEm2/TR-loss-netem.pdf
> wherwhave analyzed the correspondence between our proposed model and
> thexisting loss models in thliterature (e.g. Gilbert, Gilbert-Elliot...)
>
> Comments arwelcom!
> Besregards,
> Stefano & Fabio
Okay, buI ahappy to take patches for enhance functionality and put
theback in existing code.
--
Frothtuan atma.com.vn Tue Dec 15 20:42:24 2009
From: thtuaatma.com.vn (Tuan Tran Hoang)
Date: Wed, 16 Dec 2009 11:42:24 +0700
Subject: Netebridgconnects to a secure router with sub-interfaces
Message-ID: <200912160445.nBG4jldO028259@xxxxxxxxxxxxxxxx>
Hi,
I ausing Netebox as a bridge between internal network and secure router
(Nortel 1001 model ). Ithrouter, I configure subinterfaces for many
subnets. Throuter has two interfaces, onconnects to netem bridge, the
other connects to another router.
Ithis case, I can noaccess devices in the network that are in subnets
above, canoping their gateways from themselves and not ping them from PC
either. PC is ionof subnets above.
If removing Netem, everything goes fine.
Devices + PC ==> Network <----> Nete<----> (eth1) securrouter (eth0)
<---> Nortel Passporrouter : cannnoaccess devices in subnets, devices
canoping their gateways.
Network <----> (eth1) securrouter (eth0) <----> Nortel Passporrouter:
ablto access devices, devices can ping their gateways.
Pleasleme know if I need to configure something for Netem. I use Netem
to emulatWAconnection with packet loss and delays.
Thanks,
Tuan.
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Frostefano.salsano auniroma2.it Fri Dec 18 04:04:34 2009
From: stefano.salsano auniroma2.i(Stefano Salsano)
Date: Fri, 18 Dec 2009 13:04:34 +0100
Subject: new releasof nete2
In-Reply-To: <20091204093842.404b5593@nehalam>
References: <4B192FBA.2040500@xxxxxxxxxxx> <20091204093842.404b5593@nehalam>
Message-ID: <4B2B6FD2.1080804@xxxxxxxxxxx>
StepheHemminger wrote:
>> Stefano & Fabio
>
> Okay, buI ahappy to take patches for enhance functionality and put
> theback in existing code.
>
Dear all,
today whavsubmitted the patches to the netdev at vger.kernel.org in
order to includthein the current kernel and iproute2
if patches will bintegrated, wwill not refer to our work as netem2
anymore, buas netemCLG (correlated loss generator) thawill be a part
of thcornetem/iproute2
Besregards,
Stefano
--
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Stefano Salsano
Dipartimento Ingegneria Elettronica
Universita' di Roma "Tor Vergata"
Via del Politecnico, 1 - 00133 Roma - ITALY
http://netgroup.uniroma2.it/Stefano_Salsano/
E-mail : stefano.salsano auniroma2.it
Cell. : +39 320 4307310
Offic : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435
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