•
Verify the port is operational.
•
Verify that the configuration of the ports and interfaces within the context are correct.
•
If the configuration is correct and you have access to the device that you're attempting to ping, ping the
system from that device.
•
If there is still no response, it is likely that the packets are getting discarded by a network device. Use
the traceroute or traceroute6 and show ip static-route commands discussed in this chapter to further
troubleshoot the issue.
Using the traceroute or traceroute6 Command
The traceroute or traceroute6 command collects information on the route data will take to a specified host.
This is a useful troubleshooting command that can be used to identify the source of significant packet delays
or packet loss on the network. This command can also be used to identify bottle necks in the routing of data
over the network.
traceroute – IPv4
The traceroute command has the following syntax:
traceroute { host_name | host_ipv4_address } [ count packets ] [ df ] [ maxttl max_ttl ] [ minttl min_ttl
] [ port port_number ] [ size octet_count ] [ src { src_host_name | src_host_ipv4_address } ] [ timeout
seconds ] [ vrf vrf_nam ]
For complete information on the above command, see the Exec Mode Commands chapter of the Command
Line Interface Reference.
The following displays a sample output.
traceroute to 192.168.250.1 (192.168.250.1), 30 hops max, 40 byte packets
1 192.168.250.1 (192.168.250.1) 0.446 ms 0.235 ms 0.178 ms
traceroute6 – IPv6
The traceroute6 command has the following syntax:
traceroute6 { host_name | host_ipv6_address } [ count packets ] [ maxttl max_ttl ] [ port port_number
] [ size octet_count ] [ src { src_host_name | src_host_ipv6_address } ] [ timeout seconds ] [ vrf
vrf_nam ]
For complete information on the above commands, see the Exec Mode Commands chapter of the Command
Line Interface Reference.
The following displays a sample output.
traceroute6 to 2001:4A2B::1f3F (2001:4A2B::1f3F), 30 hops max, 40 byte packets
1 2001:4A2B::1f3F (2001:4A2B::1f3F) 0.446 ms 0.235 ms 0.178 ms
ASR 5500 System Administration Guide, StarOS Release 21.4
221
Troubleshooting
Using the traceroute or traceroute6 Command
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