System testing 7-9
6200 Packet-Optical Platform Installation, Commissioning, and Testing Procedures
Release 1.1 009-6200-201 Draft Issue 1
Copyright
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2014 Ciena
®
Corporation September 2014
Procedure 7-2 (continued)
Testing STM-1/4/16/64/OC-3/12/48/192 protection switching with traffic on 63xE1DS1 WP service
interface
Step Action
Testing all the E1/DS1 ports, both at the near and far end
5 Feed E1/DS1 traffic from the test set to the first E1/DS1 port in the I/O panel
and the remaining E1/DS1 ports in the I/O panel are connected in tandem so
that all the ports are sourced from the same test set.
6 Loopback all the E1/DS1 ports of the far end network element. The traffic
generated at the test set will be looped back to the test set. The E1/DS1 ports
of the near and far end are connected through the optical ports which will
transport the signal generated by the test set.
7 Verify ‘0’ bit errors at the E1/DS1(W/P) test set.
8 Record the data of 63xE1DS1 testing in Table 12-2 on page 12-4.
The result verifies that all the E1/DS1 ports function correctly.
Testing protection switching on the E1/DS1 ports
9 Determine the next step.
10 Connect the test set to a single E1/DS1(W/P) port in the I/O panel and loop
back it on the other node.
11 Generate a loss of signal condition (LOS) on the working path by
disconnecting the fiber.
Traffic switches from the working to the protection path within 60 ms.
12 Put fiber back on the working path.
Note: There should not be any switching between E1/DS1 work circuit pack
or E1/DS1 protect circuit pack.
After the WTR time expires, the traffic will switch from protection to the
working path.
If the protection type is Then go to
SNCP/UPSR/ step 10
1+1 MSP/APS step 13 on page 7-10
If the protection type is Then go to
revertive step 15 on page 7-10
non-revertive step 16 on page 7-10
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