Problem: Lost connectivity to one or more network management domain stations

Purpose

Perform this procedure on a RHEL or Windows station to check the reachability of another station.

Steps
 
1 

Log in to the station.

2 

Open a console window.

3 

Enter the following:

ping station ↵

where station is the station hostname or IP address

4 

To interrupt the ping operation, press Ctrl+C.

5 

Review the output, which resembles the following when connectivity is good:

PING station: 56 data bytes
64 bytes from station (192.168.106.169): icmp_seq=1, time=1.0 ms
64 bytes from station (192.168.106.169): icmp_seq=2, time=0.3 ms
64 bytes from station (192.168.106.169): icmp_seq=3, time=0.2 ms
----station PING Statistics----
3 packets transmitted, 3 packets received, 0% packet loss
rtt (ms) min/avg/max = 0.2/0.7/1.0
6 

If the packets arrive out of order, if some packets are dropped, or if some packets take too long to complete the round trip, LAN congestion may be a problem. Contact your IT department or check the physical LAN connectivity.

7 

If you can ping the station, but are unable to connect to the station to perform a function, there may be a problem with access to a function on the station.

If the NFM-P deployment includes a firewall, the firewall log entries are in the /var/log/messages file on a RHEL station.

See Purpose for information about how to verify the following:

  • ports that need to be open across firewalls

  • routing configuration

End of steps