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  Network Clock Service Overview
SyncE Interfaces Table
Interface Name Name of the Gigabit or 10Gigabit interface associated with SyncE.
If SyncE is not associated with a Gigabit or 10 Gigabit interface, this 
field contains Internal. 
Interface Hyperlinked entry to the interface routing information in the Routing 
Entity Controller window. For more information, see Viewing Routing 
Entities, page 17-32. 
This field does not apply for Internal interfaces.
Mode Whether the interface is enabled or disabled for the QL function: 
QL-Enabled or QL-Disabled. 
Timing Port Priority Value used for selecting a SyncE interface for clocking if more than one 
interface is configured. Values are from 1 to 250, with 1 being the 
highest priority. 
QL Tx Actual Actual type of outgoing quality level information, depending on the 
globally configured SSM option:
ITU-T Option I—Available values are QL-PRC, QL-SSU-A, 
QL-SSU-B, QL-SEC, and QL-DNU.
ITU-T Option II Generation 1—Available values are QL-PRS, 
QL-STU, QL-ST2, QL-SMC, QL-ST4, and QL-DUS.
ITU-T Option II Generation 2—Available values are QL-PRS, 
QL-STU, QL-ST2, QL-TNC, QL-ST3, QL-SMC, QL-ST4, and 
QL-DUS.
QL  Tx  Configured Configured type of outgoing quality level information, depending on the 
globally configured SSM option. 
See QL Tx Actual for the available values.
QL Rx Actual Actual type of incoming quality level information, depending on the 
globally configured SSM option. 
See QL Tx Actual for the available values.
QL Rx Configured Configured type of incoming quality level information, depending on 
the globally configured SSM option. 
See QL Tx Actual for the available values.
Hold-Off Timer (msecs) Length of time (in milliseconds) to wait after a clock source goes down 
before removing the source. 
Wait-to-Restore (secs) Length of time (in seconds) to wait after a failure is fixed before the 
interface returns to its original state.
Table 26-23 SyncE Properties (continued)
Field Description 
						

							 
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  Network Clock Service Overview
Applying a Network Clock Service Overlay
A service overlay allows you to isolate the parts of a network that are being used by a particular service. 
This information can then be used for troubleshooting. For example, the overlay can highlight 
configuration or design problems when bottlenecks occur and all the site interlinks use the same link.
To apply a network clock overlay:
Step 1In the Vision client, display the network map on which you want to apply an overlay. 
Step 2From the main toolbar, click Choose Overlay Type and choose Network Clock.
The Select Network Clock Service Overlay dialog box is displayed. 
Step 3Do one of the following:
Choose a search category, enter a search string, then click Go to narrow the search results to a range 
of network clock services or a specific network clock service. Search categories include:
–Description
–Name
The search condition is “contains.” Search strings are case-insensitive. For example, if you choose 
the Name category and enter “net,” the Vision client displays VPNs “net” and “NET” in the names 
whether net appears at the beginning, middle, or at the end of the name: for example, Ethernet. 
Choose Show All to display all network clock services. 
Step 4Select the network clock service overlay that you want to apply to the map. 
The elements and links used by the selected network clock are highlighted in the map, and the overlay 
name is displayed in the title of the window. (See Figure 26-24.)  ESMC  Tx Whether ESMC is enabled for outgoing QL information on the interface: 
Enabled, Disabled, or NA (Not Available). 
ESMC Rx Whether ESMC is enabled for incoming QL information on the 
interface: Enabled, Disabled, or NA (Not Available). 
SSM Tx Whether SSM is enabled for outgoing QL information on the interface: 
Enabled, Disabled, or NA (Not Available). 
SSM Rx Whether SSM is enabled for incoming QL information on the interface: 
Enabled, Disabled, or NA (Not Available). 
Table 26-23 SyncE Properties (continued)
Field Description 
						

							 
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  Viewing CEM and Virtual CEM Properties
Figure 26-24 Network Clock Service Overlay Example
In addition, the elements configured for clocking service display a clock service icon as in the following 
example: 
NoteAn overlay is a snapshot taken at a specific point in time and does not reflect changes that occur in the 
service. As a result, the information in an overlay can become stale. To update the overlay, click Refresh 
Overlay in the main toolbar.
Viewing CEM and Virtual CEM Properties 
The following topics describe how to view CEM and virtual CEM properties and interfaces:
Viewing CEM Interfaces, page 26-50
Viewing Virtual CEMs, page 26-50
Viewing CEM Groups, page 26-50 
						

							 
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Viewing CEM Interfaces 
To view CEM interfaces: 
Step 1In the Vision client, double-click the required device. 
Step 2In the Inventory window, choose Physical Inventory > Chassis >slot>subslot>interface. The CEM 
interface name is displayed in the content pane as shown in Figure 26-25.
Figure 26-25 CEM Interface 
Viewing Virtual CEMs 
To view virtual CEMs, choose Logical Inventory > Clock > Pseudowire Clock Recovery.
The virtual CEM interfaces are listed in the Virtual CEM tab. 
Viewing CEM Groups 
CEM groups can be configured on physical or virtual CEM interfaces. The underlying interface 
determines where you view CEM group properties in the Vision client: 
Viewing CEM Groups on Physical Interfaces, page 26-51
Viewing CEM Groups on Virtual CEM Interfaces, page 26-52 
						

							 
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Viewing CEM Groups on Physical Interfaces 
When you configure a CEM group on a physical interface, the CEM group properties are displayed in 
physical inventory for that interface. 
To view CEM groups configured on physical interfaces: 
Step 1In the Vision client, double-click the required device. 
Step 2In the Inventory window, choose Physical Inventory > Chassis >slot>subslot>interface. 
The CEM group information is displayed in the content pane with other interface properties 
(Figure 26-26).
Figure 26-26 CEM Group Information 
See Table 26-20 for a description of the properties displayed for CEM groups in the content pane.
Step 3To view additional information, double-click the required group. 
The CEM Group Properties window is displayed as shown in Figure 26-27.  
						

							 
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Figure 26-27 CEM Group Properties Window 
See Table 17-29 on page 17-60for the properties displayed in the Pseudowire table in the CEM Group 
Properties window.
Viewing CEM Groups on Virtual CEM Interfaces 
When you configure a CEM group on a virtual CEM, the CEM group information is displayed below the 
virtual CEM in logical inventory. 
To view CEM groups on virtual CEM interfaces: 
Step 1In the Vision client, right-click the required device, then choose Inventory. 
Step 2In the Inventory window, choose Logical Inventory > Clock > Pseudowire Clock Recovery.
Step 3In the Virtual CEM tab, right-click the CEM interface name and choose Properties. The CEM group 
properties are displayed in a separate window (Figure 26-28). If a pseudowire is configured on the CEM 
group for out-of-band clocking, the pseudowire VCID is also shown.  
						

							 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Configuring SONET
Figure 26-28 CEM Group Properties
Step 4
To view additional CEM group properties, double-click the required CEM group. 
Table 26-21 describes the information displayed in the CEM Group Properties window. 
Configuring SONET
The table below lists the SONET commands can be launched from the inventory by right-clicking a 
SONET port and selecting Commands > SONET. Your permissions determine whether you can run 
these commands (see Permissions for Vision Client NE-Related Operations, page B-4). To find out if a 
device supports these commands, see the Cisco Prime Network 4.3.2 Supported Cisco VNEs. 
Command Navigation Description
BER ThresholdRight-click on SONET port and 
select Commands > SONET > 
ShowPerformed from command launch point
Controller Data
TCA Threshold
SDH Counters Clear > SONETN/A; performed from command launch 
point 
						

							 
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BER ThresholdRight-click on SONET port and 
select Commands > SONET > 
ConfigureBER threshold:
sf-ber—Sets the signal failure BER 
threshold. Value in the range from 
3 to 9. The default value is 6
sd-ber—Sets the signal degrade 
BER threshold. Value in the range 
from 3 through 9. The default value 
is 3
Bit error rate: 3-9, or default. The 
default for sf-ber is 3, and the default 
for sd-ber is 9.
Line CountersRight-click on SONET port and 
select Commands > SONET > 
Show > PMLine type: farendline, 
farendline-history, line, or line-history
History interval: 1-96; to view all, enter 
0
Medium CountersN/A; performed from command launch 
point
Path type: farendpath, 
farendpath-history, path, path-history
Path CountersChannelized path index: 1-48 (for a 
particular channel) or 0 (for all 
channels)
History interval: 1-96; to view all, enter 
0
Section CountersRight-click on SONET port and 
select Commands > SONET > 
Show > PMSection type: section or section-history
History interval: 1-96; to view all, enter 
0
Tr a c e  D e t a i l sCard location (for example, 0/5/CPU0)
NoteThe device must be managed by 
Prime Network with device 
admin privileges. Command Navigation Description 
						

							 
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  Configuring Clock
Configuring Clock
With Ethernet equipment gradually replacing SONET and SDH equipment in service-provider networks, 
frequency synchronization is required to provide high-quality clock synchronization over Ethernet ports. 
SyncE and PTP are two widely used clock synchronization protocol used in ethernet based networks. 
Clocking configuration commands allows you to configure SyncE and PTP clock configuration on Cisco 
router. SyncE and PTP clocking configuration is predominantly used in RAN Backhaul (or MToP) 
network where TDM traffic carried from cell site router to central office via packet switched network.
These commands can be launched from the logical inventory by right-clicking on Clock node. Your 
permissions determine whether you can run these commands (see Permissions for Vision Client 
NE-Related Operations, page B-4). To find out if a device supports these commands, see the Cisco Prime 
Network 4.3.2 Supported Cisco VNEs.  Clock SourceRight-click on SONET port and 
select Commands > SONET > 
ConfigureClock source of sent signal on SONET 
ports:
internal—Controller will clock its 
sent data using internal clock.
line—Controller will clock its sent 
data using the clock recovered 
from the line’s receive data stream.
default—Cancels any clock source 
setting.
TCA ThresholdTCA threshold:
b1-tca—Threshold for B1 BER 
TCA, between 3-9 (default is 6).
b2-tca—Threshold for B2 BER 
TCA, between 3-9 (default is 6).
Bit error rate: Value from 3-9 (10 to the 
negative x), or default. Command Navigation Description 
						

							 
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Command Navigation Description
Create PTP 
Clock GlobalRight-click Clock node> Commands > 
Configuration
or
Right-click Clock node> Commands > 
Configuration > PTPIdentify the clock in the 
network with the highest 
priority. The clock with the 
highest priority is referred 
to as the master clock. All 
the other devices on the 
network synchronize their 
clocks with the master and 
are referred to as members. 
Constantly exchanged 
timing messages between 
master and members 
ensure continued 
synchronization. 
The PTP clock port 
commands are used to 
modify PTP on individual 
interfaces. Modify PTP 
Clock GlobalExpand Clock node> right-click PTP Service > 
Commands > Configuration
or
Right-click Clock node> Commands > 
Configuration > PTP
Delete PTP 
Clock GlobalExpand Clock node> right-click PTP Service > 
Commands > Configuration 
Create PTP 
Clock PortExpand Clock node> right-click PTP Service > 
Commands > Configuration
Show PTP 
Clock GlobalExpand Clock node> right-click PTP Service > 
Commands > Show
Modify PTP 
Clock Port 
Delete PTP 
Clock PortExpand Clock node> select PTP node> right-click on 
the selected PTP interface > Commands > 
Configuration 
Create PTP 
Interface
Modify PTP 
InterfacePhysical inventory > Chassis > Slot > Select an 
interface> Commands > Configuration > PTP
Create SyncE 
GlobalRight-click Clock node> Commands > 
ConfigurationConfigure clock properties 
at the global level such as 
hold-off time, wait to 
restore, force switch, and 
so on, that helps routers to 
synchronize to the best 
available clock source.
Configure SyncE at the 
interface level using the 
SyncE interface 
commands. Modify SyncE 
GlobalExpand Clock node> right-click SyncE
> 
Commands > Configuration
or
Right-click Clock node> Commands > 
Configuration
Create SyncE 
Interface
Modify SyncE 
InterfaceExpand Clock node> right-click SyncE> 
Commands > Configuration
or
Physical inventory > Chassis > Slot > Select an 
interface> Commands > Configuration > SyncE