Using the Basic Monitoring Method ! 85
Chapter 11: Understanding the Method and Tools for Monitoring Router Components
The request support information command is a combination of the following CLI
operational mode commands:
! show version detail—Display the current time and information about how long
the router, router software, and routing protocols have been running.
! show version detail—Display version information for the JUNOS software
packages and the software for each software process.
! show system core-dumps—This is a hidden command used specifically by JTAC
for troubleshooting router problems.
! show chassis hardware—Display a list of all the components installed in the
router chassis. The output includes the component name, version, part number,
serial number, and a brief description.
! show system processes extensive—Display exhaustive system processes that
are running on the router and have controlling terminal information. This
option is equivalent to the UNIX
top –bSId1 infinity command.
! show pfe statistics error—Display statistics about the Packet Forwarding Engine
errors.
! show chassis routing-engine—Display information about the Routing Engine.
! show chassis environment—Display environmental information about the router
chassis, including the temperature and information about the fans, power
supplies, and Routing Engine.
! show chassis firmware—Display the version levels of the firmware running on
the SCB, SFM, SSB, FEB, and FPCs.
! show chassis fpc detail—Display detailed status information for all FPCs or for a
specified FPC.
! show system boot messages—Display initial messages generated by the system
kernel upon boot. This is the contents of the
/var/run/dmesg.boot file.
! show system storage—Display statistics about the amount of free disk space in
the router’s file systems. Values are displayed in 1024-byte (1-KB) blocks. This
command is equivalent to the UNIX
df –k command.
! show system virtual-memory—Display the usage of JUNOS kernel memory, listed
first by size of allocation and then by type of usage.
! show system buffer—Display information about the buffer pool that the Routing
Engine uses for local traffic, which is the routing and management traffic that is
exchanged between the Routing Engine and the Packet Forwarding Engine
within the router, as well as the routing and management traffic from IP (that is,
from OSPF, BGP, SNMP, pings, and so on).
! show system statistics—Display system statistics for all protocols.