363-206-285
Administration and Provisioning
Issue 3 June 2001
8-45
5. Status and alarm conditions can be present during the provisioning
operation but will clear once the last ring cross-connection for this DS1
service is completed. If they do not, the rtrv-alm; and rtrv-crs-vt1;
commands can be used to isolate the problem. See the TOP section of this
manual (Volume II).
6. Log in or remote log in to all the nodes and verify appropriate drop or pass-
through ring cross-connections.
7. Test both paths around the ring. Since DDM-2000 OC-3 uses non-revertive
path switching to minimize the number of hits on services, the initial path
selection is arbitrary. Use rtrv-state-path and sw-path-vt1
commands to test both ring paths around the ring network at the drop
nodes of the new service. The sw-path-vt1 command should be limited
to the addresses that are being tested. For the example, the commands
are sw-path-vt1:m1-1-2-3 and sw-path-vt1:m2-1-2-3.
The rtrv-state-path and sw-path-vt1 commands use a slightly
different VT1.5 ring channel designations from the cross-connect
designations because these commands need to identify which of the two
paths around the ring is currently active. If the ring path and selected VT1.5
channel are being received on main 1, the active ring channel designation
for the rtrv-state-path and sw-path-vt1 commands will be m1-1-
2-3, where the m1 is the path received on main 1. If the ring path and
selected VT1.5 channel are being received on main 2, the ring channel
designation for the rtrv-state-path and the sw-path-vt1 commands
will be m2-1-2-3, where the m2 is the path received on main 2. The
DDM-2000 OC-3 allows a per-path designation on the sw-path-vt
command. This assures that only the new DS1 service being provisioned
will be subject to protection switch hits. If this is not the first DS1 service
being added to the ring, it is strongly recommended that the pulling of
circuit packs or fibers to test the protection path not be done, since it would
subject existing DS1 services to protection switch hits.
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