Cisco ONS 15310-MA SDH, Procedure Manual, Page: 274 / 632

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Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
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Chapter 14 Maintain the Node
Before You Begin
NTP-H108 Initiate or Clear an External Switching Command
Step 1
Complete the “DLP-H29 Log into CTC” task on page 16-43 at the node where you want to apply a
lock-on or lockout. If you are already logged in, continue with Step 3 .
Step 2
To initiate a Manual or Force switch in a 1+1 protection group, complete the “DLP-H179 Initiate an
Optical Protection Switch” task on page 17-69 .
Step 3 To prevent traffic on a working or protect port from switching to the other port in the pair, complete the
“DLP-H171 Apply a Lock-on” task on page 17-64 .
Step 4
To prevent traffic from switching to the protect port, complete the “DLP-H172 Apply a Lockout” task
on page 17-65 .
Step 5 To remove a lock-on or lockout and return a protection group to its usual switching method, complete
the
“DLP-H173 Clear a Lock-on or Lockout” task on page 17-65 .
Note A nonalarmed event (INHSWWKG or INHSWPR) is raised when a port is placed in a lock-on
or lockout state.
Step 6 As needed, complete the “DLP-H166 Initiate a Path Protection Force Switch on a Span” task on
page 17-58 .
Step 7
As needed, complete the “DLP-H167 Clear a Path Protection Force Switch” task on page 17-59 .
Note
Refer to the “Port Protection” chapter in the Cisco ONS 15310-MA SDH Reference Manual for
a description of protection switching and switch state priorities.
Stop. You have completed this procedure.
Purpose This procedure describes how to apply an external switching command
to an optical port, including Manual and Force switches, lock-ons, and
lockouts. Path protection Force switches are also included.
Tools/Equipment None
Prerequisite Procedures NTP-H142 Create Protection Groups for ONS 15310-MA SDH,
page 3-10
or
NTP-H31 Provision Path Protection Nodes, page 4-9
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Maintenance or higher