Cisco Systems 78-16845-01 manual Oos

Chapter 3 Building the Network

3.10.1 Synchronization Settings for the ONS 15310, ONS 15327, ONS 15454 SONET, and ONS 15600 SONET

Step 1	Select an ONS 15310, ONS 15327, ONS 15454 SONET, or ONS 15600 SONET NE and choose
	Configuration > NE Explorer.
Step 2	In the node property pane, click the Timing tab. Fields shown depend on the NE that is selected.
Step 3	In the General Timing section of the General subtab, enter the following information:
	•	Timing Mode—Set to External.
	•	SSM Message Set—Set to Generation 1.

•Revertive—Not relevant for internal timing; the default setting (checked) is sufficient.

•Reversion Time—The default setting is sufficient.

• Quality of RES—Set to RES=DUS.

Step 4 In the BITS Facilities section of the General subtab, enter the following information:

•	In State—Set BITS 1 and BITS 2 to	OOS.
•	Out State—Set BITS 1 and BITS 2 to	OOS.

•Coding—Not relevant for internal timing. The default (B8ZS) is sufficient.

•Framing—Not relevant for internal timing. The default (ESF) is sufficient.

•Sync Messaging—Checked.

•AIS Threshold—Not available.

•LBO—Not relevant.

Step 5 In the Reference List subtab, enter the following information:

•NE References

–Ref-1—Set to Internal Clock.

–Ref-2—Set to Internal Clock.

–Ref-3—Set to Internal Clock.

	• BITS 1 Out/BITS 2 Out—Set to None.
Step 6	Click Apply.
Step 7	In the Domain Explorer tree, select the node that will be timed from the node that was set up in
	Steps 1 through 6 and choose Configuration > NE Explorer.
Step 8	In the Timing tab, enter the same information that was entered in Step 3, except for the following:

•In the General Timing section of the General subtab, set the Timing Mode field to Line.

•In the NE References section of the Reference List subtab:

–Ref-1—Set to the OC-N trunk (span) card (non-DWDM node) or OSC card (DWDM) with the closest connection to the node.

–Ref-2—Set to the OC-N trunk (span) card (non-DWDM node) or OSC card (DWDM) with the next closest connection to the node.

–Ref-3—Set to Internal Clock.

Step 9 Click Apply.

Step 10 Repeat Steps 3 through 9 at each node that will be timed by the node.

Cisco Transport Manager Release 6.0 User Guide

78-16845-01 3-59