Discussion:
Cogent Router dropping packets
(too old to reply)
Mike Fedyk
2008-04-17 20:04:31 UTC
Hi

Some of our VoIP customers are experiencing issues using our service and
i
only happens when routing through Cogent

Does anyone have a contact for them

Thank

Host Loss% Snt Last
Av
Best Wrst StDe
1. adsl-63-194-xxx-xxx.dsl.lsan03.pacbell.net 0.0% 6049 13.7
24.
8.4 72.2 11.
2. dist3-vlan60.irvnca.sbcglobal.net 2.0% 6049 19.0
23.
8.6 217.4 13.
3. bb1-p6-7.emhril.ameritech.net 0.0% 6049 31.7
43.
8.6 317.3 46.
4. ex2-p14-0.eqlaca.sbcglobal.net 0.0% 6049 19.8
44.
9.4 487.8 49.
5. te8-1.mpd01.lax05.atlas.cogentco.com 0.0% 6049 15.0
41.
9.5 675.9 53.
6. vl3491.ccr02.lax01.atlas.cogentco.com 3.3% 6049 34.3
29.
9.9 337.5 25.
7. te3-4.ccr01.lax04.atlas.cogentco.com 5.2% 6049 19.3
30.
10.4 275.1 23.
8. vl3805.na21.b002695-2.lax04.atlas.cogentco.com 5.1% 6049 35.0
27.
10.2 227.3 12.
9. PAETEC_Communications_Inc.demarc.cogentco.com 5.3% 6049 18.3
35.
9.8 252.4 33.
10. gi-4-0-1-3.core01.lsajca01.paetec.net 5.5% 6049 17.3
37.
13.3 1054. 43.
11. po-5-0-0.core01.anhmca01.paetec.net 5.5% 6049 30.7
37.
13.7 1042. 37.
12. gi-3-0-0.edge03.anhmca01.paetec.net 5.3% 6049 19.7
33.
12.9 385.1 20.
13. 74.10.xxx.xxx 5.9% 6049 23.8
35.
18.1 86.5 11.
14. 74.10.xxx.xxx 5.2% 6049 40.4
36.
18.0 91.1 11.
Mike Fedyk
2008-04-17 21:15:24 UTC
Thank you, the issue seems to be fixed now at Cogent

Does anyone know how often issues like this seem to crop up? I'm
wonderin
to see how hard I should push here for routing around cogent for
network
our customers connect from

Mik

-----Original Message----
From: owner-***@merit.edu [mailto:owner-***@merit.edu] On Behalf Of
Rya
Harde
Sent: Thursday, April 17, 2008 1:35 P
To: Mike Fedy
Cc: ***@merit.ed
Subject: Re: Cogent Router dropping packet


-----BEGIN PGP SIGNED MESSAGE----
Hash: SHA

Just spoke to cogent about another issue, said they only know about
issue
in Los Angeles. Nevertheless, 877.726.4386 or ***@cogentco.co

/Rya
Hi
=2
Some of our VoIP customers are experiencing issues using our service=2
and it only happens when routing through Cogent
=2
Does anyone have a contact for them
=2
Thank
=2
Host Loss% Snt Las
Av
Best Wrst StDe
1. adsl-63-194-xxx-xxx.dsl.lsan03.pacbell.net 0.0% 6049 13.
24.
8.4 72.2 11.
2. dist3-vlan60.irvnca.sbcglobal.net 2.0% 6049 19.
23.
8.6 217.4 13.
3. bb1-p6-7.emhril.ameritech.net 0.0% 6049 31.
43.
8.6 317.3 46.
4. ex2-p14-0.eqlaca.sbcglobal.net 0.0% 6049 19.
44.
9.4 487.8 49.
5. te8-1.mpd01.lax05.atlas.cogentco.com 0.0% 6049 15.
41.
9.5 675.9 53.
6. vl3491.ccr02.lax01.atlas.cogentco.com 3.3% 6049 34.
29.
9.9 337.5 25.
7. te3-4.ccr01.lax04.atlas.cogentco.com 5.2% 6049 19.
30.
10.4 275.1 23.
8. vl3805.na21.b002695-2.lax04.atlas.cogentco.com 5.1% 6049 35.
27.
10.2 227.3 12.
9. PAETEC_Communications_Inc.demarc.cogentco.com 5.3% 6049 18.
35.
9.8 252.4 33.
10. gi-4-0-1-3.core01.lsajca01.paetec.net 5.5% 6049 17.
37.
13.3 1054. 43.
11. po-5-0-0.core01.anhmca01.paetec.net 5.5% 6049 30.
37.
13.7 1042. 37.
12. gi-3-0-0.edge03.anhmca01.paetec.net 5.3% 6049 19.
33.
12.9 385.1 20.
13. 74.10.xxx.xxx 5.9% 6049 23.
35.
18.1 86.5 11.
14. 74.10.xxx.xxx 5.2% 6049 40.
36.
18.0 91.1 11.
=2
- -
Ryan M. Harden, BS, KC9IHX Office: 217-265-519
CITES - Network Engineering Cell: 630-363-036
2130 Digital Computer Lab Fax: 217-244-708
1304 W. Springfield email: ***@uiuc.ed
Urbana, IL 61801 =0

University of Illinois at Urbana/Champaig
University of Illinois - ICC
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David Coulson
2008-04-17 23:59:59 UTC
Cogent frequently have routing and packet loss issues. I can't imagine
VoIP over their network is all that appealing to most people. Last time
I used Cogent I had a problem approx. every month, and I purchased
transit from them

Good luck :-
Post by Mike Fedyk
Thank you, the issue seems to be fixed now at Cogent
Does anyone know how often issues like this seem to crop up? I'm wonderin
to see how hard I should push here for routing around cogent for network
our customers connect from
Paul Stewart
2008-04-18 00:33:34 UTC
Same here... frequent packet loss. We had Cogent GigE service for abou
9 months if I recall - more than one major outage per month and packe
loss issues at least once a week

You get what you pay for (within reason)...

--
Paul Stewar
Senior Network Administrato
Nexico
5 King St. E., Millbrook, ON, LOA 1G
Phone: 705-932-412
Web: http://www.nexicom.ne
Nexicom. Connected. Naturally


-----Original Message----
From: owner-***@merit.edu [mailto:owner-***@merit.edu] On Behalf O
David Coulso
Sent: Thursday, April 17, 2008 8:00 P
To: Mike Fedy
Cc: 'Ryan Harden'; ***@merit.ed
Subject: Re: Cogent Router dropping packet

Cogent frequently have routing and packet loss issues. I can't imagine
VoIP over their network is all that appealing to most people. Last time
I used Cogent I had a problem approx. every month, and I purchased
transit from them

Good luck :-
Post by Mike Fedyk
Thank you, the issue seems to be fixed now at Cogent
Does anyone know how often issues like this seem to crop up? I'
wonderin
Post by Mike Fedyk
to see how hard I should push here for routing around cogent fo
network
Post by Mike Fedyk
our customers connect from
-------------------------------------------------------------------------
--

"The information transmitted is intended only for the person or entity to
which it is addressed and contains confidential and/or privileged material
. If you received this in error, please contact the sender immediately and
then destroy this transmission, including all attachments, without copying,
distributing or disclosing same. Thank you.

Mike Fedyk
2008-04-17 21:58:39 UTC
I spoke too soon

Host Loss% Snt Last
Av
Best Wrst StDe
1. adsl-63-194-XXX-XXX.dsl.lsan03.pacbell.net 0.0% 109 9.2
19.
8.4 57.9 11.
2. dist3-vlan60.irvnca.sbcglobal.net 0.9% 109 8.4
16.
8.3 45.6 9.
3. bb1-p6-7.emhril.ameritech.net 0.0% 109 8.6
36.
8.5 256.6 44.
4. ex2-p14-0.eqlaca.sbcglobal.net 0.0% 109 10.3
39.
9.3 209.3 46.
5. te8-1.mpd01.lax05.atlas.cogentco.com 0.0% 108 32.4
34.
9.3 238.6 45.
6. vl3491.ccr02.lax01.atlas.cogentco.com 3.7% 108 17.0
23.
12.9 98.9 13.
7. te3-4.ccr01.lax04.atlas.cogentco.com 17.6% 108 39.1
28.
16.4 198.9 22.
8. vl3805.na21.b002695-2.lax04.atlas.cogentco.com 12.0% 108 34.1
27.
17.0 68.7 11.
9. PAETEC_Communications_Inc.demarc.cogentco.com 10.2% 108 22.4
35.
17.0 168.7 27.
10. gi-4-0-1-3.core01.lsajca01.paetec.net 18.5% 108 21.2
34.
21.0 188.6 20.
11. po-5-0-0.core01.anhmca01.paetec.net 10.3% 108 35.7
33.
20.5 232.7 23.
12. gi-3-0-0.edge03.anhmca01.paetec.net 13.0% 108 21.0
31.
20.2 157.9 16.
13. 74.10.xxx.xxx 11.1% 108 25.7
33.
25.2 55.2 8.
14. 74.10.xxx.xxx 15.7% 108 26.7
35.
25.0 70.8 11.

-----Original Message----
From: Mike Fedyk=2
Sent: Thursday, April 17, 2008 2:15 P
To: Ryan Harde
Cc: ***@merit.ed
Subject: RE: Cogent Router dropping packet

Thank you, the issue seems to be fixed now at Cogent
Ryan Harden
2008-04-17 20:35:22 UTC
-----BEGIN PGP SIGNED MESSAGE----
Hash: SHA

Just spoke to cogent about another issue, said they only know abou
issues in Los Angeles. Nevertheless, 877.726.4386 or ***@cogentco.co

/Rya
Hi
Some of our VoIP customers are experiencing issues using our service and i
only happens when routing through Cogent
Does anyone have a contact for them
Thank
Host Loss% Snt Last Av
Best Wrst StDe
1. adsl-63-194-xxx-xxx.dsl.lsan03.pacbell.net 0.0% 6049 13.7 24.
8.4 72.2 11.
2. dist3-vlan60.irvnca.sbcglobal.net 2.0% 6049 19.0 23.
8.6 217.4 13.
3. bb1-p6-7.emhril.ameritech.net 0.0% 6049 31.7 43.
8.6 317.3 46.
4. ex2-p14-0.eqlaca.sbcglobal.net 0.0% 6049 19.8 44.
9.4 487.8 49.
5. te8-1.mpd01.lax05.atlas.cogentco.com 0.0% 6049 15.0 41.
9.5 675.9 53.
6. vl3491.ccr02.lax01.atlas.cogentco.com 3.3% 6049 34.3 29.
9.9 337.5 25.
7. te3-4.ccr01.lax04.atlas.cogentco.com 5.2% 6049 19.3 30.
10.4 275.1 23.
8. vl3805.na21.b002695-2.lax04.atlas.cogentco.com 5.1% 6049 35.0 27.
10.2 227.3 12.
9. PAETEC_Communications_Inc.demarc.cogentco.com 5.3% 6049 18.3 35.
9.8 252.4 33.
10. gi-4-0-1-3.core01.lsajca01.paetec.net 5.5% 6049 17.3 37.
13.3 1054. 43.
11. po-5-0-0.core01.anhmca01.paetec.net 5.5% 6049 30.7 37.
13.7 1042. 37.
12. gi-3-0-0.edge03.anhmca01.paetec.net 5.3% 6049 19.7 33.
12.9 385.1 20.
13. 74.10.xxx.xxx 5.9% 6049 23.8 35.
18.1 86.5 11.
14. 74.10.xxx.xxx 5.2% 6049 40.4 36.
18.0 91.1 11.
- -
Ryan M. Harden, BS, KC9IHX Office: 217-265-519
CITES - Network Engineering Cell: 630-363-036
2130 Digital Computer Lab Fax: 217-244-708
1304 W. Springfield email: ***@uiuc.ed
Urbana, IL 61801

University of Illinois at Urbana/Champaig
University of Illinois - ICC
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