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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 are displayed for PTP service.  
						

							 
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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 Clock identifier derived from the device interface.
PTP Domain Number of the domain used for PTP traffic. A single network can contain 
multiple separate domains. 
Priority 1 First value checked for clock selection. The clock with the lowest priority takes 
precedence. 
Priority 2 If two or more clocks have the same value in the Priority 1 field, the value in this 
field is used for clock selection. 
Port State Clock state according to the PTP engine:
Freerun—The slave clock is not locked to a master clock.
Holdover—The slave device is locked to a master device, but communication 
with the master is lost or the timestamps in the PTP packet are incorrect.
Acquiring—The slave device is receiving packets from a master and is trying 
to acquire a clock.
Freq locked—The slave device is locked to the master device with respect to 
frequency, but is not aligned with respect to phase.
Phase aligned—The slave device is locked to the master device with respect 
to both frequency and phase. 
PTP clock status syslog support—As part of the syslog support, Prime Network 
started supporting PTP clock status syslog besides the PTP inventory 
information. While receiving the syslog, Prime Network queries the device, and 
receives the PTP state information and updates in the respective PTP service. The 
service alarm supported for the PTP status information is PTP port clock state 
change alarm. Theses service alarms and the syslogs are correlated under the PTP 
service as clock service. For more information on PTP clock status update service 
alarm, refer Cisco Prime Network Supported Service Alarms.
PTP Interface List Table
Interface Name Interface identifier.
PTP Version Version of PTP used. The default value is 2, indicating PTPv2. 
Port Name Name of the PTP port clock.
Port Role PTP role of the clock: Master or Slave.  
						

							 
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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 
AddressesIP addresses of the clock source.
Delay Request 
Interval (log mean 
value)When the interface is in PTP master mode, the interval specified to member 
devices for delay request messages. The intervals use base 2 values, as follows: 
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 second, or 8 packets per second.
-4—1 packet every 1/16 seconds, or 16 packets per second.
-5—1 packet every 1/32 seconds, or 32 packets per second.
-6—1 packet every 1/64 seconds, or 64 packets per second. 
Announce Interval 
(log mean value)Interval value for PTP announcement packets: 
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 second, or 8 packets per second.
-4—1 packet every 1/16 seconds, or 16 packets per second.
-5—1 packet every 1/32 seconds, or 32 packets per second.
-6—1 packet every 1/64 seconds, or 64 packets per second. 
Announce Timeout Number of PTP announcement intervals before the session times out. Values are 
2-10. 
Table 26-19 PTP Service Properties (continued)
Field Description 
						

							 
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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 second, or 8 packets per second.
-4—1 packet every 1/16 seconds, or 16 packets per second.
-5—1 packet every 1/32 seconds, or 32 packets per second.
-6—1 packet every 1/64 seconds, or 64 packets per second. 
Sync Limit 
(nanoseconds)Maximum clock offset value, in nanoseconds, before PTP attempts to 
resynchronize. 
Interface Physical interface identifier, hyperlinked to the routing information for the 
interface. 
PTP Master Mode For an interface defined as a master device, the mode used for PTP clocking: 
Not Set—The master mode is not used.
Multicast—The interface uses multicast mode for PTP clocking.
Unicast—The interface uses unicast mode for PTP clocking. This mode 
allows a single destination.
Unicast with Negotiation—The interface uses unicast mode with negotiation 
for PTP clocking. This mode allows up to 128 destinations.
Clock Destination 
AddressesIP addresses of the clock destinations. This field contains IP addresses only when 
Master mode is enabled.
Domain Clocking domain.
Table 26-19 PTP Service Properties (continued)
Field Description 
						

							 
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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, right-click the virtual CEM, then choose Properties. 
The Virtual CEM Properties window is displayed. 
The information that is displayed in the Virtual CEM Properties window depends on whether or not the 
virtual CEM belongs to a group: 
If a CEM group is not configured on the virtual CEM, the Virtual CEM Properties window contains 
only the CEM interface name. 
If a CEM group is configured on the virtual CEM, the Virtual CEM Properties window contains the 
information described in Table 26-20. 
						

							 
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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 the CEM channel:
Framed—Specifies the channels used for the controller, such as 
Channels: (1-8), (10-14). The channels that are available 
depend on the type of controller: T1, E1, T3, or E3.
Unframed—Indicates that a single CEM channel is used for all 
T1/E1 timeslots. SAToP uses the unframed mode.
Pseudowire Name of the pseudowire configured on the CEM interface, 
hyperlinked to the pseudowire properties in logical inventory. 
Oper Status Operational status of the CEM interface:
Dormant—The interface is dormant.
Down—The interface is down.
Not Present—An interface component is missing.
Testing—The interface is in test mode.
Unknown—The interface has an unknown operational status.
Up—The interface is up.
Admin Status Administrative status of the CEM interface: 
Down—The CEM interface is administratively down.
Testing—The administrator is testing the CEM interface.
Unknown—The administrative status is unknown.
Up—The CEM interface is administratively up. 
						

							 
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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 component is missing.
Testing—The interface is in test mode.
Unknown—The interface has an unknown operational status.
Up—The interface is up.
Idle Pattern Eight-bit hexadecimal number that is transmitted on a T1 or E1 line 
when missing packets are detected on the pseudowire (PW) circuit. 
Type Type of CEM group. This is always DS0 Bundle. 
Idle CAS Pattern When CAS is used, the 8-bit hexadecimal signal that is sent when 
the CEM interface is identified as idle.
Bundle Location Associated card and slot for the virtual CEM, using the virtual CEM 
port 24; for example virtual-cem/8/3/24:0. 
Dejitter Size of the dejitter buffer in milliseconds (ms). The range is 4 to 500 
ms with a default of 4 ms. 
RTP Hdr Compression Whether RTP header compression is enabled or disabled. 
RT P  E n a b l e d W h e t h e r  RT P  c o m p r e s s ion is enabled or disabled. 
Admin Status Administrative status of the CEM interface: 
Down—The CEM interface is administratively down.
Testing—The administrator is testing the CEM interface.
Unknown—The administrative status is unknown.
Up—The CEM interface is administratively up.
ID DS0 bundle CEM group identifier.
Payload Size Size of the payload for packets on the CEM interface. The range is 
32 to 1312 bytes.  
						

							 
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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 physical 
inventory.
Recovered Clock Mode Recovered clock mode: 
Adaptive—The devices do not have a common clock 
source. The recovered clock is derived from packet arrival. 
Differential—The edge devices have a common clock 
source, and the recovered clock is derived from timing 
information in packets and the related difference from the 
common clock. 
Synchronous—A GPS or BITS clock source externally 
synchronizes both end devices. This method is extremely 
accurate, but is rarely available for all network devices.
Virtual CEM Tab
CEM Interface Name Virtual CEM interface associated with the clock. 
Recovered Clock Entries TabThis tab appears if recovered entries exist.
Transfer Type
In-band—The clocking information is sent over the same 
pseudowire as the bearer traffic. 
Out-of-band—The clocking information is sent over a 
dedicated pseudowire between the sending and receiving 
SPAs. 
						

							 
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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 SyncE, Ethernet links are synchronized by timing their bit clocks from high-quality, 
stratum-1-traceable clock signals in the same manner as SONET/SDH. Operations messages maintain 
SyncE links, and ensure a node always derives timing from the most reliable source. 
For configuring SyncE, see Configuring Clock, page 26-55. To view SyncE properties, choose Logical 
Inventory > Clock > SyncE. (See Figure 26-23.) Clock ID Clock identifier, if known. 
Clock Mode Clock mode of the recovered clock: 
Adaptive—The recovered clock was obtained using ACR. 
Primary—The recovered clock was obtained from a clock 
with the highest priority. 
Secondary—The recovered clock was obtained from a 
clock with a lower priority than the primary clock.
Clock Status Status of the clock:
Acquiring—The clock is obtaining clocking information. 
Acquired—The clock has obtained the required clocking 
information.
Holdover—The current primary clock is invalid and a 
holdover timer has started to check whether or not the clock 
becomes valid within the specified holdover time.
CEM Group CEM group associated with the clock.
CEM Group ID Identifier of the CEM group associated with the clock.
CEM Interface Name Virtual CEM interface associated with the clock. 
Frequency Offset Offset to the clock frequency, in Hz. 
Table 26-22 Pseudowire Clock Recovery Properties (continued)
Field Description 
						

							 
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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. 
Clock Mode Whether the clock is enabled or disabled for the Quality Level (QL) 
function: QL-Enabled or QL-Disabled. 
ESMC Ethernet Synchronization Message Channel (ESMC) status: Enabled or 
Disabled. 
SSM Option Synchronization Status Message (SSM) option being used: 
ITU-T Option I 
ITU-T Option II Generation 1
ITU-T Option II Generation 2
Hold-off (global) Length of time (in milliseconds) to wait before issuing a protection 
response to a failure event. 
Wait-to-restore  (global) Length of time (in seconds) to wait after a failure is fixed before the span 
returns to its original state.
Revertive Whether the network clock is to use revertive mode: Yes or No.