Cisco CRS-1 - Carrier Routing System Router Troubleshooting Guide

1-15
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
OL-21483-02
Chapter 1 General Troubleshooting
Verifying the System
Step 6
show environment
Example:
RP/0/RP0/CPU0:router(admin)# show environment
Displays display environmental monitor parameters for the
system.
Verify that the parameters are as expected.
Step 7
show context
Example:
RP/0/RP0/CPU0:router(admin)# show context
Displays core dump context information on fabric cards,
alarm modules, fan controllers, and service processors
(system-owned cards). See the “show context Command”
section on page 1-11 for more information on the show
context command output.
Step 8
exit
Example:
RP/0/RP0/CPU0:router(admin)# exit
Exits administration mode.
Step 9
show context
Example:
RP/0/RP0/CPU0:router# show context
Displays core dump context information on CPUs
responsible for routing and Cisco Express Forwarding
(CEF). See the “show context Command” section on
page 1-11 for more information on the show context
command output.
Step 10
show memory summary detail location all
Example:
RP/0/RP0/CPU0:router# show memory summary
detail location all
Displays information about the memory available on the
router after the system image decompresses and loads.
Verify that the expected memory is available or installed.
Ensure that all memory regions have adequate free space
available.
Step 11
show memory heap summary { job-id | all}
Example:
RP/0/RP0/CPU0:router# show memory heap summary
all
Displays a summary of the information about the heap
space. The output displays each process and the amount of
memory allocated for each process.
Verify if there are any processes using a large amount of
memory.
Step 12
top processes
Example:
RP/0/RP0/CPU0:router# top processes
To get a live update of process resource consumption, use
the top processes command and press ‘M’ to sort by
memory usage.
Verify that the resource consumption is as expected.
Step 13
show running-config
Example:
RP/0/RP0/CPU0:router# show running-config
Displays the contents of the currently running
configuration.
Verify that the contents of the current running configuration
are what is expected.
Command or Action Purpose

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English