Operation

Logging in with the console

Log into the EGM60 using the console. Login is root and password is root. The password can be changed using the passwd command.

If you want to be able to access the device through a unique hostname, this can be set with the command hostname.

Remote log in

EGM60 has a telnet server and when EGM60 is connected to the network it can be reached using telnet. The EGM60 comes configured with the IP address 192.168.1.239.

EGM60 also has a SSH server, but this has first to be started using the command startserver –d. Please keep in mind that establishing a SSH connection might take several minutes. However, when the session is set up, communication is normal.

Set up IP address

The EGM60 comes configured with the fixed IP address 192.168.1.239. You can change the IP address using the command ipconfig. EGM60 can be set to use dhcp instead with the command ipconfig -d.

Start the PTP engine

The PTP engine will start automatically at power-on. It will start in it’s default mode which is Multicast, UDP, E2E, 1-step, 1 sync/s. The PTP engine can be stopped with ptp2 stop

Restart the PTP engine with the command ptp2 start.

Set up PTP operation

Change from default settings such as 1-step/2-step, Multicast/Unicast, L2/L3, P2P/E2E. See the command reference on page 11 or [2].

Monitor GPS status

Use the command gps for a health check of the GPS receiver.

Monitor PTP status

There are many commands that are useful to monitor the status and quality of the PTP connection. See the command reference on page 11.

Port status

The command ptp2 p s will tell you what status the port is. You would expect this to be PTP2_STATE_MASTER if the EGM60 is the only or best clock on the network and PTP2_STATE_PASSIVE if there is a better clock on the network.

Monitoring PTP messages

Turn on debugging mode using the command ptp2 e d on. Now, there are a number of different outputs that you can enable to monitor and debug your system. You can get a list of all outputs by typing ptp2 e v.

The command ptp2 e v 8 will output all PTP messages sent and received by the EGM60. Please be aware that with a high message rate, there will be much output, and in extreme situations, this might affect the performance of the EGM60. Turn off the output by repeating the ptp2 e v 8 command or ptp2 e d off.