Cisco CRS-1 - Carrier Routing System Router Troubleshooting Manual page 134

Verifying and Troubleshooting Up Fabric Planes
Command or Action
Step 7
Clean and reconnect the fiber-optic connectors for the
out of service link.
Review these reminders and warnings before
inspecting or handling your fiber-optic connection:
Warning Because invisible radiation may be
emitted from the aperture of the port when
no fiber cable is connected, avoid
exposure to radiation and do not stare into
open apertures. Statement 125
Class 1M laser radiation when open. Do
Warning
not view directly with optical instruments.
Statement 281
Laser radiation. Do not view directly with
Warning
optical instruments. Class 1M laser
product. Statement 283
For diverging beams, viewing the laser
Warning
output with certain optical instruments
within a distance of 100 mm may pose an
eye hazard. For collimated beams, viewing
the laser output with certain optical
instruments designed for use at a distance
may pose an eye hazard. Statement 282
Examples
The following example shows how to display the link state of a fiber port. The output displays link ports
that are operationally down, excluding those that are administratively down and those that are
completely disconnected.
RP/0/RP0/CPU0:router(admin)# show controllers fabric link port s2rx all statistics
Wed May
Total racks: 1
Rack 0:
UCE
Cells
--------------------------------------------------------------------------------
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
4-124
2 16:29:49.102 EST EDT
SFE Port
PE
R/S/M/A/P Data Cells
Cells
0/SM0/SP/0/0
Purpose
Perform this step if you have placed a link out of service on
a Cisco CRS-1 Multishelf System.
You must clean the fabric fiber-optic connectors with the
specially designed Cisco kit (CRS-FIBER-CLN-KIT=) and
you must use the procedure in the Cisco CRS-1 Carrier
Routing System Fiber-Optic Cleaning Guide. This
document is available on the Maintain and Operate
documentation site:
http://www.cisco.com/en/US/products/ps5763/prod_maint
enance_guides_list.html.
If you do not use the specified kit and procedure,
Caution
the optical connectors will not be cleaned
properly and interruption of the signal will
continue to happen.
If cleaning and reconnecting the optical fibers does not
resolve the down link, you might need to replace the optical
fibers. However, contact Cisco Technical Support first to
discuss further troubleshooting options.
For Cisco Technical Support contact information, see the
"Obtaining Documentation and Submitting a Service
Request" section on page viii
In In
Idle Cells
9149278 5437189623455
Chapter 4 Troubleshooting Router Switch Fabric
in the Preface.
CE
Cells
0
OL-21483-02