Add a VLAN to a PTP boundary clock instance as a clock port. You can configure the clock port as slave-only port or master-only port.
| boundary | Boundary clock instance. |
| vlan_name | Name of the specific VLAN to be added to or deleted from the PTP clock instance. |
| one-step | 1-step protocol mode (default). |
| two-step | 2-step protocol mode. |
| slave-only | Force clock port to be slave. |
| master-only | Force clock port to be master. |
The default configuration of clock port is master or slave mode.
Use this command to add a VLAN to a PTP boundary clock instance as a clock port. You can configure the clock port as slave-only port, or master-only port. The slave-only clock port has the PTP port state forced to slave. The slave port does not respond to signaling messages from other slaves, and Sync/DelayResponse event messages are not generated by the slave-only ports.
The master-only clock port has the PTP port state forced to master. The master port generates Sync/DelayResponse event messages to downstream slave clocks.
The default configuration of clock port is master or slave mode. In this mode, the clock port state is based on the Best Master Clock (BMC) algorithm running on the port. The BMC algorithm decides the clock port state transition to master or slave depending on the event messages received on the clock port from the associated unicast master(s)/slave(s).
The VLAN should be tagged.
Loopback-mode should be enabled on the VLAN.
IPv4 address should be configured and IP forwarding must be enabled on the VLAN.
The VLAN should not have front panel ports added.
The following example adds a vlan 'lpbk-gm' as a slave clock port to boundary clock:
configure network-clock ptp boundary add vlan lpbk-gm one-step slave-only
The following example adds a vlan 'lpbk-ord' as a master clock port to boundary clock in two-step protocol mode:
configure network-clock ptp boundary add vlan lpbk-ord two-step master-only
The following example adds a vlan 'lpbk-transit' as a clock port to boundary clock whose master/slave state is decided by BMCA:
configure network-clock ptp boundary add vlan lpbk-transit one-step
This command was first available in ExtremeXOS 15.1.
This command is available on the cell site routers (E4G-200 and E4G-400).
Note
PTP commands can be used only with the Network Timing feature pack.
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