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Packet loss at Level3/Plusnet network interface

N/A

Packet loss at Level3/Plusnet network interface

- Like many other customers I can now surf Web sites other than the Plusnet portal.
- However, like other customers, I am experiencing packet loss >10%.
- The packet loss varies depending upon which Web sites I access.
- Packet loss only seems to occur when the packets are routed between the Plusnet and Level3 networks in Telehouse.
- A traceroute to demonstrate this is shown below. The first router between the Plusnet and Level3 networks has the IP addresses 213.166.3.153.
- Please repeat this experiment to see if you get a similar result. If you are running Windows, open a MS-DOS Prompt and type:
C:\WINDOWS>tracert www.google.com
- Linux users can use the traceroute program.
- To measure your packet loss you can type:
C:\WINDOWS>ping -n 50 213.166.3.153
- Now for the traceroute (recorded 21:20 03Nov2002):

C:\WINDOWS>tracert www.google.com

Tracing route to www.google.com [216.239.39.101]
over a maximum of 30 hops:

1 <10 ms 1 ms <10 ms 192.168.0.1
2 23 ms 24 ms 27 ms 105.core.plus.net [212.159.1.105]
3 26 ms 23 ms 21 ms dsl-gw2.core.telehouse.plus.net [212.159.1.194]
4 25 ms 24 ms 31 ms 82.core.plus.net [212.159.1.82]
5 114 ms 131 ms * 213.166.3.153
6 117 ms 120 ms 124 ms 213.232.64.54
7 * * 121 ms 212.113.3.25
8 112 ms 120 ms 134 ms 212.113.3.1
9 118 ms 124 ms * so-3-0-0.mp1.Amsterdam1.Level3.net [212.187.128.14]
10 * 144 ms 135 ms gige1-0.core1.Amsterdam1.Level3.net [213.244.165.13]
11 125 ms * 141 ms CW-Level3.level3.net [213.244.165.246]
12 142 ms 142 ms 150 ms bcr1-so-3-0-0.Amsterdam.cw.net [208.173.211.237]
13 209 ms 196 ms 199 ms dcr2-loopback.Washington.cw.net [206.24.226.100]
14 * 210 ms 207 ms bhr1-pos-10-0.Sterling1dc2.cw.net [206.24.238.166]
15 206 ms 213 ms 214 ms csr11-ve241.Sterling2dc3.cw.net [216.109.66.90]
16 231 ms * 198 ms 218-google-exodusdc.exodus.net [216.109.88.218]
17 200 ms 203 ms 201 ms dcbi2-1-1.net.google.com [216.239.47.54]
18 203 ms 199 ms 201 ms www.google.com [216.239.39.101]


- Here are some typical ping stats to 213.166.3.153:
Packets: Sent = 50, Received = 43, Lost = 7 (14% loss),
Approximate round trip times in milli-seconds:
Minimum = 91ms, Maximum = 275ms, Average = 98ms


Fredrik
1 REPLY
N/A

RE: Packet loss at Level3/Plusnet network interface

I raised a ticket about the packet loss yesterday, and received this response this morning:

Dear customer,

We did have a problem over night with one of our external network provides that resulted in some customers experiencing packet loss.this has now been addressed and should you have further problems then contact us again.
Regards,
Simon Tuxford

If you look at http://www.dslreports.com/badrouters/213.166.3.150, you will see that router 213.166.3.150 was noticed as 'lossy' in line quality tests run yesterday.