[j-nsp] MX - DWDM no link
Luca Salvatore
Luca at ninefold.com
Wed Nov 7 05:30:39 EST 2012
Well thanks for the info.
p.s. i'm not trolling, i have done lots of troubleshooting - but was posting from my iphone so didn't have the info handy. It is all included below.
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.
Anyway here are some of the steps I have taken:
We have tried to reverse the Tx/Rx already with no luck.
Changed / removed the wavelength frequencies
Reboot routers
offline / online FPC.
So the is tunable 10Gb optic supported in MX10 or not?
I have attached some outputs from some show commands and interface diagnostics
mx10-1> show chassis fpc pic-status
Slot 0 Online
PIC 0 Online 4x 10GE XFP
Slot 1 Online
PIC 0 Online 10x 1GE(LAN) SFP
PIC 1 Online 10x 1GE(LAN) SFP
PIC 2 Online 1x 10GE XFP
PIC 3 Online 1x 10GE XFP
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
mx10-1> show chassis hardware
<snip>
FPC 1 BUILTIN BUILTIN MPC BUILTIN
MIC 0 REV 26 750-028392 CAAM5167 3D 20x 1GE(LAN) SFP
PIC 0 BUILTIN BUILTIN 10x 1GE(LAN) SFP
Xcvr 9 REV 02 740-011613 AA0945ST7PM SFP-SX
PIC 1 BUILTIN BUILTIN 10x 1GE(LAN) SFP
MIC 1 REV 21 750-028380 CAAN6158 3D 2x 10GE XFP
PIC 2 BUILTIN BUILTIN 1x 10GE XFP
Xcvr 0 REV 03 740-031585 FC0691140180 XFP-10G-T-DWDM-ZR
Here is the MX at the other end:
MX10-2> show interfaces diagnostics optics xe-1/2/0
Physical interface: xe-1/2/0
Laser bias current : 22.166 mA
Laser output power : 1.4120 mW / 1.50 dBm
Module temperature : 28 degrees C / 83 degrees F
Laser rx power : 0.0000 mW / - Inf dBm
MX10-2>show chassis hardware
Hardware inventory:
<snip>
MIC 0 REV 26 750-028392 CAAM6764 3D 20x 1GE(LAN) SFP
PIC 0 BUILTIN BUILTIN 10x 1GE(LAN) SFP
Xcvr 9 REV 02 740-011613 PN174MT SFP-SX
PIC 1 BUILTIN BUILTIN 10x 1GE(LAN) SFP
Xcvr 0 REV 02 740-011613 PN23ZW4 SFP-SX
MIC 1 REV 21 750-028380 CAAN6147 3D 2x 10GE XFP
PIC 2 BUILTIN BUILTIN 1x 10GE XFP
Xcvr 0 REV 03 740-031585 FC0994260069 XFP-10G-T-DWDM-ZR
PIC 3 BUILTIN BUILTIN 1x 10GE XFP
Fan Tray Fan Tray
MX10-2> show chassis fpc pic-status
Slot 0 Online
PIC 0 Online 4x 10GE XFP
Slot 1 Online
PIC 0 Online 10x 1GE(LAN) SFP
PIC 1 Online 10x 1GE(LAN) SFP
PIC 2 Online 1x 10GE XFP
PIC 3 Online 1x 10GE XFP
________________________________________
From: Jeff Wheeler [jsw at inconcepts.biz]
Sent: Wednesday, 7 November 2012 7:08 PM
To: Luca Salvatore
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] MX - DWDM no link
On Wed, Nov 7, 2012 at 2:37 AM, Luca Salvatore <Luca at ninefold.com> wrote:
> This might seem silly but when I look into the XPF in the router I don't see any red lights coming from inside the XPF. Normally when you look into a XFP or SFP you can see the red laser inside it. I'm not seeing that with the XFP in the MX. Should I be able to see a light?
>
> Any suggestions? I have configured the wavelengths on each side and the interface is just configured as a simple inet interface.
<SwedeMike> don't look into laser with remaining good eye!
The light coming from that XFP is not within the visible spectrum.
You can't see it BUT IT CAN DAMAGE YOUR EYE. Do not look into it!
To be honest, I'm not sure your post isn't a troll! However, there
are plenty of things that could be wrong with your installation. The
Tx/Rx fibers could be reversed. You may be using the wrong wavelength
for the underlying DWDM system. The fiber span may not be good enough
for 10G -- are there other 10G waves working on it? 1G/2.5G waves?
You might need amplification or chromatic dispersion correction
equipment. Your XFPs could be bad. Maybe it's vendor fiber and it is
not patched correctly? Perhaps you have in-building cross-connects
which are not completed or are of poor quality?
Who really knows? You have done zero basic troubleshooting steps.
The reason why is (assuming you aren't a troll) you don't understand
what you are doing. I think your project will be more successful if
you find a local contractor to help you. This may sound rude, but you
are not even working SAFELY at this point, let alone effectively. Get
yourself some assistance so you can get the job done without damaging
your eyesight or delaying your work. You probably need someone local
to you, because there is a very big knowledge gap between what you've
got (in this specific context) and what you might need to troubleshoot
quickly and SAFELY. The mailing list can hand-hold you through it if
you post more information and do a bunch of troubleshooting steps, but
I wouldn't want to be on the phone with my dark fiber vendor going,
"well, some guys on juniper-nsp told me to rent a light meter and I
used it and can't see any signal from my other POP..." :-/
$0.02. Again, I apologize if my response seems rude, but you are
going to harm your eyes!
--
Jeff S Wheeler <jsw at inconcepts.biz>
Sr Network Operator / Innovative Network Concepts
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