Step 8: Ping the SONET Interface

Action

To ping the local interface and verify the loopback connection, use the following JUNOS CLI operational mode command:

user@host> ping interface so-fpc/pic/port local-IP-address bypass-routing count 
1000 rapid

Sample Output

user@host# ping interface so-2/2/0 10.0.2.1 bypass-routing count 1000 rapid 

PING 10.0.2.1 (10.0.2.1): 56 data bytes

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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

--- 10.0.2.1 ping statistics ---

1000 packets transmitted, 1000 packets received, 0% packet loss

round-trip min/avg/max/stddev = 0.374/0.446/9.744/0.754 ms

What It Means

This command sends 1000 ping packets out of the interface to the local IP address. The ping should complete successfully with no packet loss. If there is any persistent packet loss, open a case with the Juniper Networks Technical Assistance Center (JTAC) at support@juniper.net, or at 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States).