Troubleshooting; Using The Traceroute Or Traceroute6 Command; Traceroute - Ipv4 Syntax - Cisco ASR 5000 Administration Manual

Using the traceroute or traceroute6 Command

For complete descriptions of the above commands, see the Exec Mode Commands chapter of the Command
Line Interface Reference.
The following displays a sample of a successful ping (IPV4) response.
PING 192.168.250.1 (192.168.250.1): 56 data bytes
64 bytes from 192.168.250.1: icmp_seq=0 ttl=255 time=0.4 ms
64 bytes from 192.168.250.1: icmp_seq=1 ttl=255 time=0.2 ms
64 bytes from 192.168.250.1: icmp_seq=2 ttl=255 time=0.2 ms
64 bytes from 192.168.250.1: icmp_seq=3 ttl=255 time=0.2 ms
64 bytes from 192.168.250.1: icmp_seq=4 ttl=255 time=0.2 ms
--- 192.168.250.1 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.2/0.2/0.4 ms

Troubleshooting

If no response is received from the target follow these troubleshooting procedures:
• Verify that the correct IP address was entered.
• Attempt to ping a different device on the same network. If the ping was successful then it is likely that
• 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
• If there is still no response, it is likely that the packets are getting discarded by a network device. Use
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 Syntax
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 a complete description of 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
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your system configuration is correct. Verify that the device you are attempting to ping is powered and
functioning properly.
system from that device.
the traceroute or traceroute6 and show ip static-route commands discussed in this chapter to further
troubleshoot the issue.
192.168.250.1 (192.168.250.1) 0.446 ms 0.235 ms 0.178 ms
Troubleshooting