Cisco ONS 15310-MA SDH Procedure Manual page 101

Chapter 3 Turn Up a Node
If you check the gateway network element (GNE) for the ONS 15310-MA SDH proxy server, end
ONS 15310 network elements (ENEs) must reference the gateway ONS 15310 for NTP/SNTP
timing. For more information about the proxy server feature, refer to the "Management Network
Connectivity" chapter of the Cisco ONS 15310-MA SDH Reference Manual.
Note
If you reference another ONS 15310-MA SDH for the NTP/SNTP server, make sure the second ONS
Caution
15310 references an NTP/SNTP server and not the first ONS 15310 (that is, do not create an NTP/SNTP
timing loop by having two ONS 15310s reference each other).
Date—If the Use NTP/SNTP Server check box is not checked, type the current date in the format
•
mm/dd/yyyy, for example, September 24, 2004 is 09/24/2004.
Time—If the Use NTP/SNTP Server check box is not checked, type the current time in the format
•
hh:mm:ss, for example, 11:24:58. The ONS 15310-MA SDH uses a 24-hour clock, so 10:00 PM is
entered as 22:00:00.
Time Zone—Click the field and choose a city within your time zone from the drop-down list. The
•
menu displays the 80 World Time Zones from –11 through 0 (GMT) to +14. Continental United
States time zones are GMT-05:00 (Eastern), GMT-06:00 (Central), GMT-07:00 (Mountain), and
GMT-08:00 (Pacific).
Use Daylight Savings Time—Check this check box if the time zone that you chose is using Daylight
•
Savings Time.
Note
• Insert AIS-V on VC4 SD-P—Check this check box if you want AIS-Vs inserted on VC low-order
path circuits carried byVC3s when the VC3 crosses its SD-P BER threshold. On protected circuits,
traffic will be switched. If the switch cannot be performed, or if circuits are not protected, traffic
will be dropped when the VC3 SD-P BER threshold is reached.
SD-P BER—If you selected Insert AIS-V, you can choose the SD-P BER level from the SD-P BER
•
drop-down list.
Click Apply.
Step 4
In the confirmation dialog box, click Yes.
Step 5
78-19416-01
server, it synchronizes its date and time with the server's date and time and the SNTP-FAIL
alarm is cleared. For each retry and resynchronization, the node checks the availability of the
primary NTP/SNTP server first, followed by the secondary NTP/SNTP server. The node
synchronizes its date and time every hour.
You will not be able to identify which NTP/SNTP server is being used for
Note
synchronization.
In ONS 15310 Software Release 9.0 and later, you can configure an IPv6 address for an
NTP/SNTP server, in addition to an IPv4 address.
The ONS 15310-MA SDH clock is not running on battery backup, if power is lost the date
and time must be reset.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
Before You Begin
3-5