Dlp-B195 Verify Timing In A Reduced Ring; Dlp-B196 Delete A Blsr From A Single Node - Cisco ONS 15327 Procedure Manual

NTP-B213 Remove a BLSR Node

DLP-B195 Verify Timing in a Reduced Ring

Purpose
Tools/Equipment
Prerequisite Procedures None
Required/As Needed
Onsite/Remote
Security Level
Step 1 In node view, click the Provisioning > Timing tabs.
Identify the type of timing (Line, External, Mixed) in the Timing Mode field.
Step 2
Scroll down to the Reference Lists and observe the NE Reference fields to see the timing references
Step 3
provisioned for that node.
If the removed node was the only BITS timing source, perform the following:
Step 4
a.
b.
If the removed node was not the only BITS timing source, provision the adjacent nodes to line timing
Step 5
using SONET links (east and west) as timing sources, traceable to the node with external BITS timing.
See the
Return to your originating procedure (NTP).
Step 6

DLP-B196 Delete a BLSR from a Single Node

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
In node view, display the node that was removed from the BLSR.
Step 1
Cisco ONS 15327 Procedure Guide, R4.0
13-12
Use this task to verify timing in the ring where you removed a node.
None
As needed
Onsite or remote
Provisioning or higher
Look for another node on the ring that can be used as a BITS source and set that node's Timing Mode
to External. Choose that node as the primary timing source for all other nodes in the ring. See the
"DLP-B157 Change the Node Timing Source" task on page
If no node in the reduced ring can be used as a BITS source, choose one node to be your internal
timing source. Set that node's Timing Mode to External, set the BITS 1 and 2 State field to OOS,
and set the NE Reference to Internal Clock. Then, choose line timing for all other nodes in the ring.
This forces the first node to be their primary timing source. See the
Timing Source" task on page
Internal timing conforms to Stratum 3 requirements and is not considered optimal.
Note
"NTP-B28 Set Up Timing" procedure on page
Use this task to delete a BLSR from a node after you remove the node from
the BLSR.
None
DLP-B60 Log into CTC, page 2-23
As needed
Onsite or remote
Provisioning or higher
9-15.
3-16.
Chapter 13 Add and Remove Nodes
9-15.
"DLP-B157 Change the Node
March 2003