Traceroute - Cisco Nexus 1000V Troubleshooting Manual

Traceroute

S e n d d o c u m e n t c o m m e n t s t o n e x u s 1 k - d o c f e e d b a c k @ c i s c o . c o m .
The ping allows you to ping a port or end device. By specifying the IPv4 address, you can send a series
of frames to a target destination. Once these frames reach the target, they are looped back to the source
and a time-stamp is taken. Ping helps you to verify the connectivity and latency to destination.
Traceroute
Use traceroute to:
•
•
Traceroute identifies the path taken on a hop-by-hop basis and includes a timestamp at each hop in both
directions. You can use traceroute to test the connectivity of ports along the path between the generating
switch and the switch closest to the destination.
Use the traceroute CLI command to access this feature.
If the destination cannot be reached, the path discovery starts, which traces the path up to the point of
failure.
Monitoring Processes and CPUs
There are features in the CLI for monitoring switch processes and CPU status and utilization.
This section contains the following topics:
•
•
•
Identifying the Processes Running and their States
Use the show processes command to identify the processes that are running and the status of each
process. (See
•
•
•
•
•
•
Process states are:
•
•
•
•
Cisco Nexus 1000V Troubleshooting Guide, Release 4.2(1)SV2(2.1)
2-2
Trace the route followed by data traffic.
Compute inter-switch (hop-to-hop) latency.
Identifying the Processes Running and their States, page 2-2
Displaying CPU Utilization, page 2-3
Displaying CPU and Memory Information, page 2-4
Example 2-1.) The command output includes:
PID = process ID.
State = process state.
PC = current program counter in hex format.
Start_cnt = how many times a process has been started (or restarted).
TTY = terminal that controls the process. A "-" usually means a daemon not running on any
particular TTY.
Process = name of the process.
D = uninterruptible sleep (usually I/O).
R = runnable (on run queue).
S = sleeping.
T = traced or stopped.
Chapter 2 Tools Used in Troubleshooting
OL-28795-01