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Huge packet loss on specific destinations

oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Huge packet loss on specific destinations

Hello,
I have a huge packet loss (40%+) on specific destinations during afternoon times. Problem arises from 1-3pm every day and disappears at 8-9pm. Packet loss happens on routes through RETN LINX server, I've tested many other routes and no problems there, only with RETN route. I've opened CS ticket with the same question, but still got no answer. I'm attaching graphs from monitoring software so you can see where and when problem occurs. Would be nice to get some reply from tech stuff with suggestions how to fix/avoid this problem.
121 REPLIES
Plusnet Staff
Plusnet Staff
Posts: 6,346
Thanks: 31
Fixes: 5
Registered: ‎26-11-2011

Re: Huge packet loss on specific destinations

Hi oruvin,
I've taken a look over your connection and can't see anything from our end and from our suppliers systems that would indicate a problem.
You mention that the issue only happens on RETN route, is that right? You don't have any other issues with different routes?
Chris Pettitt
Cloud Environments Engineer
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

Hi,
Yes, as I mentioned, problems only occur on RETN route (packet loss starts between ae2.ptw-cr01.plus.net and linx-224.retn.net routers as you can see on the graphs attached), for example, try to trace ya.ru server from your workplace. I believe it isn't problem with PlusNET itself or with "last mile" suppliers, the problem is with connection to the RETN LINX router. I'm not sure what could be done, maybe need to change routing tables to avoid RETN LINX server, or need to contact RETN itself and see what can they say.
jim:quote
Community Gaffer
Community Gaffer
Posts: 5,282
Thanks: 610
Fixes: 5
Registered: ‎04-04-2007

Re: Huge packet loss on specific destinations

Are you seeing packet loss right now?
Kelly Dorset
Broadband Service Manager
Community Gaffer
Community Gaffer
Posts: 5,282
Thanks: 610
Fixes: 5
Registered: ‎04-04-2007

Re: Huge packet loss on specific destinations

This is what I'm currently seeing:
HopIP             Hostname                                 last [ms]min [ms]max [ms]ava. [ms]var. [ms]total Lossperc. 			RTTL	ASN     
1  10.3.5.253    10.3.5.253                              0        0      0      0                          0                          255 AS65534
2  10.0.3.5      10.0.3.5                                0        0      0      0        0        0        0                          64  AS1   
3  84.93.216.88  vlan380.pbs-cr01.plus.net                1        1      1      0        1        0        0                          254 AS6871 
4  84.93.216.95  gi6-8.ptp-cr01.plus.net                  1        1      5      1        1        0        0                          253 AS6871 
5  84.93.224.49  gi1-22.pcl-gw01.plus.net                8        8      21      10      4        0        0                          252 AS6871 
6  195.166.129.40 ae3.pcl-cr01.plus.net                    8        8      44      10      8        0        0                          60  AS6871 
7  195.166.129.0  ae1.ptw-cr01.plus.net                    8        8      42      11      9        0        0                          60  AS6871 
8  195.66.224.193 linx-224.retn.net                        106      102    163    109      14      0        0                              AS10026
9  87.245.233.237 ae6-10.RT.EQX.FKT.DE.retn.net            124      119    133    124      3        0        0                          58  AS9002 
10 87.245.246.150 GW-IntecTradeInc.retn.net                124      117    125    122      2        0        0                          57  AS9002 
11 176.122.240.130unused-176.122.240.130.intectradeinc.com 125      117    125    121      2        0        0                          56  AS59513
12 176.122.240.253176.122.240.253                          122      119    123    121      1        0        0                          56         

Kelly Dorset
Broadband Service Manager
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

Yes. This /tracert done 10 secs ago:
C:\Users\Oruvin>tracert ya.ru
Tracing route to ya.ru [87.250.250.203]
over a maximum of 30 hops:
  1    1 ms    <1 ms    <1 ms  RT-N66U [192.168.10.1]
  2    15 ms    15 ms    15 ms  lo0-central10.ptw-ag01.plus.net [195.166.128.195]
  3    15 ms    15 ms    15 ms  link-b-central10.ptw-gw02.plus.net [212.159.2.146]
  4    15 ms    15 ms    17 ms  xe-4-2-0.ptw-cr02.plus.net [212.159.0.242]
  5    15 ms    16 ms    15 ms  ae2.ptw-cr01.plus.net [195.166.129.4]
  6    *        *      87 ms  linx-224.retn.net [195.66.224.193]
  7    *      94 ms    *    ae2-9.RT.TC2.AMS.NL.retn.net [87.245.233.97]
  8    93 ms    93 ms    *    GW-Yandex.retn.net [87.245.246.14]
  9    96 ms    *      94 ms  tulip-ae1-0.yndx.net [87.250.239.46]
10    *      96 ms    *    www.yandex.ru [87.250.250.203]
11    *        *      91 ms  www.yandex.ru [87.250.250.203]
Trace complete.
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

Kelly,
As I see you have no packet loss, BUT you have different PlusNET router (ae1.ptw-cr01.plus.net) connected to the RETN network, my route is going through ae2.ptw-cr01.plus.net router. Maybe there is problem with PlusNET router (ae2.ptw-cr01.plus.net)?
Community Gaffer
Community Gaffer
Posts: 5,282
Thanks: 610
Fixes: 5
Registered: ‎04-04-2007

Re: Huge packet loss on specific destinations

Yeah, that's what I'm wondering.  Disconnect and reconnect and see if you end up with a different route through our network?
www.yandex.ru

HopIP            Hostname                    last [ms]min [ms]max [ms]ava. [ms]var. [ms]total Lossperc. LossLatitudeLongitudeRTTLASN   
1  10.3.5.253    10.3.5.253                  0        0      0      0                          0                          255 AS65534
2  10.0.3.5      10.0.3.5                    0        0      1      0        0                  0                          64  AS59513
3  84.93.216.88  vlan380.pbs-cr01.plus.net    0        0      6      1        1                  0                          254 AS6871 
4  84.93.216.95  gi6-8.ptp-cr01.plus.net      3        1      14      2        3                  0                          253 AS6871 
5  84.93.224.49  gi1-22.pcl-gw01.plus.net    8        8      8      8        0                  0                          252 AS6871 
6  195.166.129.40 ae3.pcl-cr01.plus.net        8        8      22      9        3                  0                          60  AS6871 
7  195.166.129.0  ae1.ptw-cr01.plus.net        8        8      9      8        0                  0                          60  AS6871 
8  195.66.224.193 linx-224.retn.net            105      101    136    107      7                  0                              AS10026
9  87.245.233.97  ae2-9.RT.TC2.AMS.NL.retn.net 113      108    118    111      2        1        0                          58  AS9002 
10 87.245.246.14  GW-Yandex.retn.net          110      109    112    111      1                  0                          57  AS9002 
11 87.250.239.46  tulip-ae1-0.yndx.net        114      110    114    112      1                  0                          53  AS13238
12 87.250.250.3  www.yandex.ru ;               113      109    115    112      1        1        0                          52  AS13238
13 87.250.250.3  www.yandex.ru ;               111      111    111    111                        0                                     
Kelly Dorset
Broadband Service Manager
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

That was the first thing I've tried to do. Problem with this destination is going on for at least a week, tried to obtain different IP subnet to see if routing table changes, but looks that I'm really unlucky (have had more than 3 different IPs), routing didn't change.
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

Sorry to reanimate this topic, but problem still occurs. Try to tracert packets to ya.ru right now and see it yourself. Is it possible to get alternative route somehow to avoid linx-224.retn.net router?
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

50% packet loss, can't even open a webpage, lovely service..
Community Gaffer
Community Gaffer
Posts: 17,674
Thanks: 661
Fixes: 165
Registered: ‎05-04-2007

Re: Huge packet loss on specific destinations

The URL you're tracing to has huge packet loss for me too. Is it still only RETN traffic you're seeing this on?
What do traces to other URLs look like?
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Staff
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: ‎18-07-2007

Re: Huge packet loss on specific destinations

Also have you been rebooting the router a lot over the past hour or so? It seems there's been a few drops in connection:
<img src="http://community.plus.net/visualradius/generated/image13886815344503.png"/>
oruvin
Grafter
Posts: 30
Registered: ‎26-11-2013

Re: Huge packet loss on specific destinations

Hi,
Yes, I've been trying to get a different IP to see if I get different route (routes were different, but all of them had same issues with linx-224.retn.net router), that's why you see many reconnects.
As I mentioned in early posts, problem ONLY occurs within RETN network (RETN LINX), with all other routes (that I'm using) there is absolutely no problem.
pwatson
Rising Star
Posts: 2,468
Thanks: 8
Fixes: 1
Registered: ‎26-11-2012

Re: Huge packet loss on specific destinations

So it could be a RETN problem then...  Have you approached them about the problem?