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  Network Clock Service Overview
To monitor PTP service: 
Step 1In the Vision client, right-click the required device, then choose Inventory. 
Step 2In the Inventory window, choose Logical Inventory > Clock > PTP Service. The PTP service 
properties are displayed in the content pane as shown in Figure 26-20.
Figure 26-20 PTP Service Properties 
Table 26-19 describes the properties that...

 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Network Clock Service Overview
Table 26-19 PTP Service Properties
Field Description
PTP Mode Mode of PTP operation: 
Boundary—Boundary clock mode.
E2E Transparent—End-to-end transparent clock mode.
Ordinary—Ordinary clock mode.
P2P Transparent—Peer-to-peer transparent clock mode.
Unknown—The clock mode is unknown.
NoteCisco MWR-2941 routers support Ordinary mode only. 
PTP Clock ID...

 
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PTP Slave Mode For an interface defined as a slave device, the mode used for PTP clocking: 
Not Set—The slave mode is not used.
Multicast—The interface uses multicast mode for PTP clocking.
Unicast—The interface uses unicast mode for PTP clocking. 
Unicast with Negotiation—The interface uses unicast mode with negotiation 
for PTP clocking. 
Clock Source...

 
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  Network Clock Service Overview
Sync Interval (log 
mean value)Interval for sending PTP synchronization messages:
4—1 packet every 16 seconds.
3—1 packet every 8 seconds.
2—1 packet every 4 seconds.
1—1 packet every 2 seconds.
0—1 packet every second.
-1—1 packet every 1/2 second, or 2 packets per second.
-2—1 packet every 1/4 second, or 4 packets per second.
-3—1 packet every 1/8...

 
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  Network Clock Service Overview
Viewing Pseudowire Clock Recovery Properties 
To view pseudowire clock recovery properties:
Step 1Choose Logical Inventory > Clock > Pseudowire Clock Recovery. The Vision client displays the 
Virtual CEM information by default. See Figure 26-21. 
Figure 26-21 Pseudowire Clock Recovery - Virtual CEM Tab
Step 2
To view more information about a virtual CEM,...

 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Network Clock Service Overview
Step 3To view additional CEM group properties, double-click the required CEM group. 
Table 26-21 describes the information displayed in the CEM Group Properties window. 
Table 26-20 Virtual CEM Group Properties
Field Description
CEM Interface Name CEM interface name. 
CEM Group Table
CEM Group Name of the virtual CEM group.
Framing Framing mode used for...

 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Network Clock Service Overview
Step 4To view recovered clock entries, click the Recovered Clock Entries tab. See Figure 26-22. 
If no recovered clock entries exist, this tab is not displayed. 
Table 26-21 CEM Group Properties
Field Description
Oper Status Operational status of the CEM interface:
Dormant—The interface is dormant.
Down—The interface is down.
Not Present—An interface...

 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Network Clock Service Overview
Figure 26-22 Pseudowire Clock Recovery - Recovered Clock Entries Tab 
Table 26-22 describes the information displayed for pseudowire clock recovery. 
Table 26-22 Pseudowire Clock Recovery Properties
Field Description
Recovered Clock Source Interface (slot/subslot) in which clock recovery occurred.
Click the hyperlinked entry to view its properties in...

 
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  Network Clock Service Overview
Viewing SyncE Properties 
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. 
Synchronous Ethernet (SyncE), a recently adopted standard, provides the required synchronization at the 
physical level. 
In...

 
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Chapter 26      Managing Mobile Transport Over Pseudowire (MToP) Networks
  Network Clock Service Overview
Figure 26-23 SyncE Properties in Logical Inventory 
Table 26-23 describes the information that is displayed for SyncE. 
Table 26-23 SyncE Properties
Field Description
Synchronous Mode Status of the automatic synchronization selection process: Enabled or 
Disable. 
Equipment Clock Ethernet Equipment Clock (EEC) options: EEC-Option I or 
EEC-Option II....