problem is fixed. tix-2 was on speed auto/duplex auto. it's now fixed by ix europe - looks now good ,-)
-steven
-----Original Message----- From: Glogger Steven Sent: Tuesday, March 07, 2006 9:27 AM To: 'swinog@swinog.ch' Subject: RE: [swinog] Cablecom Routing/Peering changes?
duplex problems on switch? let fredy check what results he gets when he pings cablecom directly...
-steven
-----Original Message----- From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of Mike
Kellenberger
Sent: Tuesday, March 07, 2006 9:25 AM To: swinog@swinog.ch Subject: [swinog] Cablecom Routing/Peering changes?
Hi all
Our office is connected via VPN through Cablecom Highspeed (62.2.230.80) to Init7 (82.197.163.110). Last Thursday, we
had a short
interruption and since then throughput is really bad.
Fredy Kuenzler said, the interruption was due to peering changes of Cablecom to Init7.
I'm trying to find out where the problem is, maybe someone here can help me out.
A trace shows this:
Tracing route to r1escape.cpe.init7.net [82.197.163.110] over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.10.1 2 7 ms 7 ms 7 ms 62-2-80-229.business.cablecom.ch [62.2.80.229] 3 12 ms 11 ms 11 ms 10.219.224.1 4 13 ms 13 ms 13 ms
tengig-11-0.blxOTF001.gw.cablecom.net
[62.2.33.5 ] 5 14 ms 13 ms 13 ms
tengig-11-0.blxOTF001.gw.cablecom.net
[62.2.33.5 ] 6 16 ms 15 ms 37 ms 194.42.48.10 7 15 ms 15 ms 17 ms r9.core.init7.net [213.144.128.9] 8 19 ms 17 ms 16 ms r1escape.cpe.init7.net [82.197.163.110]
Pings up to 62.2.33.5 are fine, pinging 194.42.48.10 (TIX)
and further
reveal sporadic timeouts...
Any help is appreciated!
Regards,
Mike
-- Mike Kellenberger
mike.kellenberger@escapenet.ch
Escapenet - the Web Company Tel +41
52 235 0700
http://www.escapenet.ch Fax +41
52 235 0701
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Glogger Steven schrieb:
problem is fixed. tix-2 was on speed auto/duplex auto. it's now fixed by ix europe - looks now good ,-)
This would explain the mentioned peering problem between Cablecom and Init7. We recently moved traffic from Init7 to Cablecom over TIX-2.
Regards, Fredy
Glogger Steven schrieb:
problem is fixed. tix-2 was on speed auto/duplex auto.
BTW this is a common issue. If you happen to run some Cisco 29xx|35xx switches, check duplex problems with entering
#sh int | inc CRC
or
#sh int | inc error
if it shows more than just a couple of errors, then you most likely have a duplex / speed mismatch.
Rule of thumb: - Cisco Switch - any Switch: usually set to Speed 100 / Full Duplex - Cisco Switch - Cisco Router: always set both sides to Speed 100 / Full Duplex - Cisco Switch - Host: usually better to use Speed auto / Duplex auto
So don't be surprised if you have bad performance with Duplex mismatch. Another possibility is to check the LED status of the Ciscos - if you see yellow blinking (instead of green), then something is wrong.
HTH F.
-
Fredy Kuenzler -
Glogger Steven