-Original Message-
From: Holemans Wim [mailto:wim.holem...@ua.ac.be]
Sent: 10 May, 2010 23:13
To: Matthew White (MAWHI); cisco-nsp@puck.nether.net
Subject: RE: [c-nsp] 3750-E + CVR-X2-SFP10G + SFP-10G-SR =
disappearing media
We have a similar setup but with X2 interfaces, so no X2 to
SFP+ convertors and that works just fine. Have you checked
the transceiver parameters ?
Hi Wim,
Thanks for your reply.
It appears that all of the values are withing normal operating parameters:
#show int ten2/0/2 trans det
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
- -- -- - - -
Te2/0/2 44.275.070.0 0.0 -5.0
High Alarm High Warn Low Warn Low Alarm
VoltageThreshold Threshold Threshold Threshold
Port (Volts)(Volts) (Volts)(Volts)(Volts)
- ----- - - -
Te2/0/23.29 3.633.463.13 2.97
OpticalHigh Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
- - -- - - -
Te2/0/2 -2.5 1.7-1.3-7.3 -11.3
OpticalHigh Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
---- -- - - -
Te2/0/2 -2.9 2.0-1.0-9.9 -13.9
Maybe they are not within limit causing a shutdown of the
interface ? (temperature, input power, output power). The
first batch of (non-cisco) X2 transceivers we got, all gave
wrong information about thresholds e.d. After replacing them,
everything was fine.
sh int te1/0/1 transc detail
should give you this info. We are running version 122-50.SE2.
Wim Holemans
Network/Security Manager
University of Antwerp
-Original Message-
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of
Matthew White (MAWHI)
Sent: dinsdag 11 mei 2010 0:03
To: cisco-nsp@puck.nether.net
Subject: [c-nsp] 3750-E + CVR-X2-SFP10G + SFP-10G-SR =
disappearing media
Greetings,
I have an open TAC case about this but I figured I'd ask here as well.
I recently installed 10 3750-Es in 5 2-member stacks. Each
stack has 2 uplinks to a 6509-VSS. I'm using X2 to SFP+
converters and 10G SFP+ modules on both ends of the links
between the stacks and the VSS. In each stack I'm using
interface Ten1/0/1 and Ten2/0/1. There is currently no real
traffic on any of the links. The plan is to do a forklift
upgrade of our existing production network and I've set the
3750/VSS up in a test environment. With the exception of two
hosts talking iperf to each other, the network is quiet.
The problem I'm seeing is this: after about 6 to 8 hours a
10G interface on the 3750 side will go down. Saying 'show int
Ten2/0/1' will show the media type as Not Present:
Full-duplex, 10Gb/s, link type is auto, media type is Not Present
as opposed to:
Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
I am seeing this behavior on three individual switches and in
each case it is ten2/0/1 that fails. I've replaced the X2
converter, the SFP+ module and moved the converter to
Ten2/0/2 but the symptoms persist. I RMA'd one of the
switches and just installed the replacement, hopefully this
will solve the problem.
I also checked software compatibilty and the switches are
running (C3750E-UNIVERSALK9-M), Version 12.2(53)SE2
Has anyone seen this before?
-mtw
___
cisco-nsp mailing list cisco-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
___
cisco-nsp mailing list cisco-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
