Filter
Top Products
3-64
Cisco Transport Manager Release 6.0 User Guide
78-16845-01
Chapter 3 Building the Network
3.11 How Do I Synchronize the Network for MGX Voice Gateway Devices?
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 7 and choose Configuration > NE Explorer.
Step 8 In the Timing tab, complete the following:
• In the General Timing section of the General subtab:
–
Timing Mode—Set to Line.
–
Revertive—Not applicable for internal timing; the default setting is sufficient.
–
Reversion Time—Not applicable for internal timing; the default setting is sufficient.
• In the NE References section of the Reference List subtab:
–
Ref-1—Set to the STM-N trunk card with the closest connection to the node.
–
Ref-2—Set to the STM-N trunk card with the next closest connection to the node.
–
Ref-3—Set to Internal Clock.
Step 9 Click Apply.
Step 10 Repeat Steps 7 through 9 for each node that will be timed by the node.
3.11 How Do I Synchronize the Network for MGX Voice
Gateway Devices?
The CTM server and managed nodes must be synchronized with the same date and time. If the CTM
server and managed nodes do not have the same date and time, there might be inconsistencies in
retrieving time-sensitive data.
3.11.1 Viewing Clocking Sources
CTM supports manual clock configuration. This configures both a primary and secondary clock source,
which are distributed throughout the network. The secondary clock source takes over if the primary
clock source fails. You can configure a network setup with one master clock source, and a secondary to
ensure network clock stability.
On Cisco MGX 8850 (PXM45) switches, clock source configuration is done on a PXM45 card, and clock
sourcing information is passed to other nodes over AXSM lines.
Clock synchronization is done directly on the Cisco MGX 8880 using the CLI.
These topics are used to manage and configure clocking sources:
• 3.11.1.1 Configuring Global Clocking
• 3.11.1.2 Displaying the List of Available Clock Sources
• 3.11.1.3 Displaying the List of Manual Clock Sources
• 3.11.1.4 Creating a Manual Clock Source