Dear Jawwad
Pls find attached output of 'show int trans'
Date: Mon, 24 Jan 2011 15:12:44 +0500
Subject: Re: [c-nsp] %SFF8472-5-THRESHOLD_VIOLATION: Te0/2: Rx power low
warning; Operating value: -12.5 dBm, Threshold value -9.9 dBm
From: [email protected]
To: [email protected]
CC: [email protected]
Hi Farooq
Trying changing fiber cable. This error is normally generated when signal loss
level exceeds the operating value For e.g. if point A sends a signal of 2 dbm,
when it reaches point B signal is -12.5dBm("show interface tengig0/x trans
detail" output will give you details) i.e. loss of 10.5 dbm. Warning threshold
value in this case is -9.9 dBm and Operating threshold would be around -13dBm.
If this signal is less then -13dBm, Tengig port would go into errdisabled
mode(if error recovery is not configured). Signal loss needs to be controlled
here.
Hope it helps
Regards
Jawwad Paracha
IBM
On Mon, Jan 24, 2011 at 3:03 PM, Farooq Razzaque <[email protected]> wrote:
yes correct. This link is connected between core and Distribution switch.
> Subject: Re: [c-nsp] %SFF8472-5-THRESHOLD_VIOLATION: Te0/2: Rx power low
> warning; Operating value: -12.5 dBm, Threshold value -9.9 dBm
> From: [email protected]
> Date: Mon, 24 Jan 2011 09:52:58 +0000
> CC: [email protected]; [email protected]
> To: [email protected]
>
> I am going to take a guess in that he will not be using fibre from a service
> provider.
>
> He states that the issue is on a fibre link between a core switch and this
> 3560...
>
>
> On 24 Jan 2011, at 08:09, Muhammad Jawwad Paracha wrote:
>
> > Hi Farooq
> >
> > I have gone through similar problem with one of our customer in recent days.
> > This issue is related to fiber service provider, get OTDR report from
> > service provider also attach "show interface tengig0/x trans detail" output
> > from both device.
> >
> > Regards
> >
> > Jawwad Paracha
> >
> > IBM
> >
> > On Mon, Jan 24, 2011 at 12:41 PM, Farooq Razzaque
> > <[email protected]>wrote:
> >
> >>
> >> Hi All
> >>
> >> I am receiving the following errors on aggregation switch
> >> (WS-C3560E-12SD-E) which is connected with Core switch (Cat. 6513)
> >>
> >> %SFF8472-5-THRESHOLD_VIOLATION: Te0/2: Rx power low warning; Operating
> >> value: -12.5 dBm, Threshold value -9.9 dBm
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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> >>
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>
sh interfaces tenGigabitEthernet 0/1 transceiver detail
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)
--------- ------------------ ---------- --------- --------- ---------
Te0/1 27.0 74.0 70.0 0.0 -4.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
--------- --------------- ---------- --------- --------- ---------
Te0/1 0.00 0.00 0.00 0.00 0.00
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ----------------- ---------- --------- --------- ---------
Te0/1 -2.2 3.0 -1.0 -7.3 -11.3
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Te0/1 -3.2 3.0 -1.0 -9.9 -13.9
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