Using The Ping Command; Using The Traceroute Command - Cisco CRS-1 - Carrier Routing System Router Getting Started Manual

Chapter 9 Troubleshooting the Cisco IOS XR Software
Table 9-1 Common show Commands in Cisco IOS XR Software (continued)
Command
show tech-support
show tracebacks
show user [group | tasks | all]
show version

Using the ping Command

Use the ping command to diagnose network connectivity. Enter a hostname or an IP address as an
argument to this command.
The ping command sends an echo request packet to an address, then awaits a reply. Ping output can help
you evaluate path-to-host reliability, delays over the path, and whether the host can be reached or is
functioning.
Each exclamation point (!) indicates receipt of a reply. A period (.) indicates the network server timed
out while waiting for a reply. Other characters may appear in the ping output display, depending on the
protocol type.
Examples
In the following example, a successful ping attempt is shown:
RP/0/RP0/CPU0:router# ping 10.233.233.233
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.233.233.233, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/7 ms
In the following example, an unsuccessful ping attempt is shown:
RP/0/RP0/CPU0:router# ping 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

Using the traceroute Command

Use the traceroute command to discover the routes that packets take when traveling to their destination.
Enter a hostname or an IP address as an argument to this command.
Description
Collects a large amount of system information for troubleshooting purposes. The
output should be provided to technical support representatives when a problem is
reported. Because of the impact it can have on a running system, it is reserved for
users assigned to the cisco-support task ID.
Allows you to get a dump of all the unsolicited debug messages that contained
traceback information (that is, a list of program counters back from the line of code
generating the message) along with the dynamic link library (DLL) information
necessary to decode the traceback.
Displays the username for the current logged-in user. Use this command to also
display the groups and associated task IDs assigned to the account.
Displays basic system information.
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Basic Troubleshooting Commands
9-3