15-14
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 15 Maintain the Node
NTP- D231 Initiate or Clear an External Switching Command
NTP-D231 Initiate or Clear an External Switching Command
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at the node where you want to initiate an
external switching command. If you are already logged in, continue with Step 4.
Step 2 As needed, complete the “DLP-D43 Initiate an Optical Protection Switch” task on page 17-34.
Step 3 As needed, complete the “DLP-D44 Initiate an Electrical Protection Switch” task on page 17-35.
Step 4 To prevent traffic on a working or protect card from switching to the other card in the pair, complete the
“DLP-D201 Apply a Lock-On” task on page 19-1.
Step 5 To switch traffic from a working or protect card to the other card in the pair to prevent revertive
switching, complete the “DLP-D202 Apply a Lockout” task on page 19-2.
Note A combination of lock-on and lockout is allowed in 1:1 and 1:N protection; for example, a
lock-on applied to the working card and a lockout on the protect card is permissible.
Step 6 To remove a lock-on or lockout and return a protection group to its usual switching method, complete
the “DLP-D203 Clear a Lock-On or Lockout” task on page 19-3.
Step 7 Complete the “DLP-D303 Initiate an MS-SPRing Force Ring Switch” task on page 20-3 as needed.
Step 8 Complete the “DLP-D194 Clear an MS-SPRing Force Ring Switch” task on page 18-82 as needed.
Step 9 Complete the “DLP-D197 Initiate an SNCP Force Switch” task on page 18-84 as needed.
Step 10 Complete the “DLP-D198 Clear an SNCP Force Switch” task on page 18-85 as needed.
Step 11 To lock out traffic on an MS-SPRing span, complete the “DLP-D299 Initiate an MS-SPRing Span
Lockout” task on page 19-84.
Step 12 Complete the “DLP-D300 Clear an MS-SPRing Span Lockout” task on page 20-1 as needed.
Stop. You have completed this procedure.
Purpose This procedure applies an external switching command (Force, Manual,
Lock On, and Lock Out) to optical cards, electrical cards, subnetwork
connection protection (SNCP) rings, and multiplex section-shared
protection rings (MS-SPRings).
Tools/Equipment None
Prerequisite Procedures NTP-D170 Create Protection Groups, page 4-10
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Maintenance or higher
To Next Page
Loading...
