Displaying the NetRef Node Synchronization Information (CTP Menu)
To display the configured NetRef node synchronization details using the CTP Menu:
- From the Main Menu, select 2) Node Synchronization
- Select 8) Query Node Sync Status to view NetRef node details.
The Slave Node Sync query displays the IP address of that primary node to which it is locked. The query output also displays the IP addresses of all the configured primaries along with their priorities. When a switchover of the primary nodes occurs, the client node sync query displays the IP address of the switched primary node. In the following example, the client node is locked to the primary (10.216.118.73).
Node Synchronization Info ========================= Reference in use: Slave of 10.216.118.86 NetRef State: Maintain (last adj -0.217 ppm) NetRef Masters: 10.216.118.73 Priority 1 10.216.118.86 Priority 2 10.216.118.90 Priority 3 10.216.118.88 Priority 4When the primary (10.216.118.73) goes down, the client node locks to the next highest priority primary (10.216.118.86) as illustrated in the following example:
Please select a number from the following list: ------------------------------------- 0) Back to Previous Menu 1) 1st Priority, Reference 0: Disabled 2) 2nd Priority, Reference 1: Disabled 3) 3rd Priority, Reference 2: Disabled 4) 4th Priority, Reference 3: Disabled 5) 5th Priority, Reference 4: Disabled 6) NetRef: Slave 7) 32 kHz Ref Output: NO 8) Query Node Sync Status 9) Measure Ref Inputs 10) Calibrate Node to Current Reference ------------ Your choice [6]: 8 Node Synchronization Info ========================= Reference in use: Slave of 10.216.118.86 NetRef State: Maintain (last adj -0.217 ppm) NetRef Masters: 10.216.118.73 Priority 1 10.216.118.86 Priority 2 10.216.118.90 Priority 3 10.216.118.88 Priority 4Table 1 describes the fields corresponding to the configured NetRef nodes and synchronization details displayed in the output.
Field Name |
Field Description |
|---|---|
Reference in use |
Displays the IP address of the NetRef primary node that is being referenced and used by the client or backup node. |
NetRef State |
Displays the NetRef state, such as Maintain, Aggressive, Starvation, or Wait. Also, this field displays the number of packets per minute, which when reached, causes the clocking algorithm to change, and which constrains the frequency adjustments to the adaptive clock. If all the four primary nodes goes down, the NetRef state remains in Starvation state and no switching will take place. When the NetRef state of the client node is Maintain and the primary goes down, the client node is unable to receive the packets within the last 20 seconds. Therefore, the NetRef state of the client node moves from Maintain state to Starvation state and switching takes place. When the NetRef state of the client node is Aggressive and the primary goes down, the client node is unable to receive the packets within the last 20 seconds. Therefore, the NetRef state of the client node transitions from Aggressive state to Starvation state and switching will take place. |
NetRef Masters |
|
Priority 1 |
Displays the IP address of the NetRef primary node assigned with priority 1. |
Priority 2 |
Displays the IP address of the NetRef primary node assigned with priority 2. |
Priority 3 |
Displays the IP address of the NetRef primary node assigned with priority 3. |
Priority 4 |
Displays the IP address of the NetRef primary node assigned with priority 4. |