Step 2: Verify Router Connection

Action

To determine that the routers are connected, enter the following command from the ingress and transit routers:

user@host> ping host

Sample Output

user@R1> ping 10.0.0.3 count 3    

PING 10.0.0.3 (10.0.0.3): 56 data bytes

64 bytes from 10.0.0.3: icmp_seq=0 ttl=254 time=0.859 ms

64 bytes from 10.0.0.3: icmp_seq=1 ttl=254 time=0.746 ms

64 bytes from 10.0.0.3: icmp_seq=2 ttl=254 time=0.776 ms

--- 10.0.0.3 ping statistics ---

3 packets transmitted, 3 packets received, 0% packet loss

round-trip min/avg/max/stddev = 0.746/0.794/0.859/0.048 ms

user@R3> ping 10.0.0.6 count 3 

PING 10.0.0.6 (10.0.0.6): 56 data bytes

64 bytes from 10.0.0.6: icmp_seq=0 ttl=255 time=0.968 ms

64 bytes from 10.0.0.6: icmp_seq=1 ttl=255 time=3.221 ms

64 bytes from 10.0.0.6: icmp_seq=2 ttl=255 time=0.749 ms

--- 10.0.0.6 ping statistics ---

3 packets transmitted, 3 packets received, 0% packet loss

round-trip min/avg/max/stddev = 0.749/1.646/3.221/1.117 ms

What It Means

The sample output shows that ingress router R1 is receiving packets from transit router R3, and that the transit router is receiving packets from the egress router. Therefore, the routers in the LSP are connected.