[j-nsp] MX - DWDM no link
Luca Salvatore
Luca at ninefold.com
Wed Nov 7 06:44:45 EST 2012
Here is the full output from the working interfaces if you are interested:
MX10-1> show interfaces diagnostics optics xe-1/2/0
Physical interface: xe-1/2/0
Laser bias current : 22.118 mA
Laser output power : 1.4120 mW / 1.50 dBm
Module temperature : 28 degrees C / 83 degrees F
Laser rx power : 0.0230 mW / -16.38 dBm
Laser bias current high alarm : Off
Laser bias current low alarm : Off
Laser bias current high warning : Off
Laser bias current low warning : Off
Laser output power high alarm : Off
Laser output power low alarm : Off
Laser output power high warning : Off
Laser output power low warning : Off
Module temperature high alarm : Off
Module temperature low alarm : Off
Module temperature high warning : Off
Module temperature low warning : Off
Laser rx power high alarm : Off
Laser rx power low alarm : Off
Laser rx power high warning : Off
Laser rx power low warning : Off
Module not ready alarm : Off
Module power down alarm : Off
Tx data not ready alarm : Off
Tx not ready alarm : Off
Tx laser fault alarm : Off
Tx CDR loss of lock alarm : Off
Rx not ready alarm : Off
Rx loss of signal alarm : Off
Rx CDR loss of lock alarm : Off
Laser bias current high alarm threshold : 85.000 mA
Laser bias current low alarm threshold : 2.500 mA
Laser bias current high warning threshold : 72.000 mA
Laser bias current low warning threshold : 5.000 mA
Laser output power high alarm threshold : 3.1620 mW / 5.00 dBm
Laser output power low alarm threshold : 0.5010 mW / -3.00 dBm
Laser output power high warning threshold : 1.9950 mW / 3.00 dBm
Laser output power low warning threshold : 0.7940 mW / -1.00 dBm
Module temperature high alarm threshold : 73 degrees C / 163 degrees F
Module temperature low alarm threshold : -8 degrees C / 18 degrees F
Module temperature high warning threshold : 70 degrees C / 158 degrees F
Module temperature low warning threshold : -5 degrees C / 23 degrees F
Laser rx power high alarm threshold : 0.3981 mW / -4.00 dBm
Laser rx power low alarm threshold : 0.0012 mW / -29.21 dBm
Laser rx power high warning threshold : 0.2511 mW / -6.00 dBm
Laser rx power low warning threshold : 0.0019 mW / -27.21 dBm
Other one:
mx10-2> show interfaces diagnostics optics xe-1/2/0
Physical interface: xe-1/2/0
Laser bias current : 25.205 mA
Laser output power : 1.4110 mW / 1.50 dBm
Module temperature : 29 degrees C / 84 degrees F
Laser rx power : 0.0221 mW / -16.56 dBm
Laser bias current high alarm : Off
Laser bias current low alarm : Off
Laser bias current high warning : Off
Laser bias current low warning : Off
Laser output power high alarm : Off
Laser output power low alarm : Off
Laser output power high warning : Off
Laser output power low warning : Off
Module temperature high alarm : Off
Module temperature low alarm : Off
Module temperature high warning : Off
Module temperature low warning : Off
Laser rx power high alarm : Off
Laser rx power low alarm : Off
Laser rx power high warning : Off
Laser rx power low warning : Off
Module not ready alarm : Off
Module power down alarm : Off
Tx data not ready alarm : Off
Tx not ready alarm : Off
Tx laser fault alarm : Off
Tx CDR loss of lock alarm : Off
Rx not ready alarm : Off
Rx loss of signal alarm : Off
Rx CDR loss of lock alarm : Off
Laser bias current high alarm threshold : 85.000 mA
Laser bias current low alarm threshold : 2.500 mA
Laser bias current high warning threshold : 72.000 mA
Laser bias current low warning threshold : 5.000 mA
Laser output power high alarm threshold : 3.1620 mW / 5.00 dBm
Laser output power low alarm threshold : 0.5010 mW / -3.00 dBm
Laser output power high warning threshold : 1.9950 mW / 3.00 dBm
Laser output power low warning threshold : 0.7940 mW / -1.00 dBm
Module temperature high alarm threshold : 73 degrees C / 163 degrees F
Module temperature low alarm threshold : -8 degrees C / 18 degrees F
Module temperature high warning threshold : 70 degrees C / 158 degrees F
Module temperature low warning threshold : -5 degrees C / 23 degrees F
Laser rx power high alarm threshold : 0.3981 mW / -4.00 dBm
Laser rx power low alarm threshold : 0.0012 mW / -29.21 dBm
Laser rx power high warning threshold : 0.2511 mW / -6.00 dBm
Laser rx power low warning threshold : 0.0019 mW / -27.21 dBm
________________________________________
From: Julien Goodwin [jgoodwin at studio442.com.au]
Sent: Wednesday, 7 November 2012 10:42 PM
To: Luca Salvatore
Cc: Jeff Wheeler; juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] MX - DWDM no link
On 07/11/12 21:30, Luca Salvatore wrote:
> The fibre run is about 40Km point to point. There are other people already using it on their own frequencies at 10Gb so I know it works.
> While i'll admit my knowledge about DWDM stuff is not great, I do have plenty of experience in the routing and switching space - just not much with the long haul fiber stuff.
You'd also want to know the power loss (dB) to confirm loss rating.
With high power optics you also have the possibility of permanent damage
if you loop them back at short range, if you tried this earlier you may
already have destroyed them.
I presume this is all going into a passive mux or transponder-less
ROADM? If its going into a transponder you usually use SX or multimode
optics.
I'm also pretty sure that tunables only work on MIC ports on MX80 and
derivatives, not the fixed ports, here's one ref confirming:
http://labs.spritelink.net/juniper-mx-and-tunable-xfps
But this is apparently fixed in a JunOS new enough for the "real" MX10's.
...
> mx10-1> show interfaces diagnostics optics xe-1/2/0
> Physical interface: xe-1/2/0
> Laser bias current : 20.861 mA
> Laser output power : 1.4120 mW / 1.50 dBm
> Module temperature : 32 degrees C / 89 degrees F
> Laser rx power : 0.0000 mW / - Inf dBm
That's snipped right? IIRC you should see the wavelength listed here,
but I don't have a tunable to hand (yay! excuse to buy a lab toy, shame
I have no money for such)
--
Julien Goodwin
Studio442
"Blue Sky Solutioneering"
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