Configuration to change reference from SyncE to PTP on 7210 SAS-D ETR

About this task

The following are the configuration steps to change reference from SyncE to PTP. This procedure is required only on 7210 SAS-D ETR nodes.

Procedure

Run the following commands to configure standalone PTP as a reference.
```
configure >system >ptp >no shutdown

config> system> sync-if-timing> begin
ptp
no shutdown
exit
ref-order ptp [Must be configured]

config> system> sync-if-timing> commit
```
After the preceding commands are run, the frequency and time are provided by PTP only.

Run the following commands to change the reference to syncE.

config> system> sync-if-timing> begin
ptp
shutdown
exit

config> system> sync-if-timing> commit

config> system> sync-if-timing> begin
ref1
source-port 1/1/10
no shutdown
exit

ref2
source-port 1/1/11
no shutdown
exit

ref-order ref1 ref2   --------> Or, the ref-order you want [But Must be configured]
    
    revert    ---------------------> If you want ref-order you have setup to take 
effect

ql-selection -------------------> Optional, if we need Quality to be considered. 

config> system> sync-if-timing> commit

After the preceding commands are run, the frequency is provided by SyncE and TOD is provided by PTP [configure>system>ptp>no shutdown]. This is called PTP Hybrid mode.

Run the following commands to revert to standalone PTP from SyncE.

config> system> sync-if-timing> begin
ref1
source-port 1/1/10   --------------------> Not Required if port is already 
                                           configured, but in admin down state
shutdown
exit

ref2
source-port 1/1/11   --------------------> Not Required if port is already 
                                           configured, but in admin down state
shutdown
exit

config> system> sync-if-timing> commit 

config> system> sync-if-timing> begin
ptp
no shutdown
exit

ref-order ptp [Must be configured] 

config> system> sync-if-timing> commit

Now the frequency and time are provide by PTP (config>system>ptp>no shutdown) only. This is standalone PTP mode.