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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 10 Manage the Node
NTP-G87 Change Node Timing Parameters
NTP-G87 Change Node Timing Parameters
Caution The following procedure might be service affecting and should be performed during a scheduled
maintenance window.
Step 1 Complete the “DLP-G46 Log into CTC” task on page 2-25. If you are already logged in, continue with
Step 2.
Step 2 Complete the “NTP-G103 Back Up the Database” procedure on page 13-2.
Step 3 Click the Provisioning > Timing > General tabs.
Step 4 In the General Timing section, change any of the following information:
• Timing Mode
Note Because mixed timing can cause timing loops, Cisco does not recommend using the
Mixed Timing option. Use this mode with care.
• SSM Message Set
• Quality of RES
• Revertive
• Revertive Time
See the “NTP-G53 Set Up Timing” task on page 6-4 for field descriptions.
Step 5 In the Reference Lists area, you can change the following information:
Note Reference lists define up to three timing references for the node and up to six BITS Out
references. BITS Out references define the timing references used by equipment that can be
attached to the node’s BITS Out pins on the backplane. If you attach equipment to BITS Out
pins, you normally attach it to a node with Line mode because equipment near the external
timing reference can be directly wired to the reference.
• NE Reference
• BITS 1 Out
• BITS 2 Out
Purpose This procedure changes the timing parameters for the ONS 15454. To
switch the timing reference, see the “NTP-G112 Change the Node Timing
Reference” procedure on page 13-17.
Tools/Equipment None
Prerequisite Procedures NTP-G53 Set Up Timing, page 6-4
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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