| COMMAND |
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Description |
Example |
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| Chassis Management |
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| show chassis alarm |
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Chassis alarm status |
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| show chassis craft-interface |
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Information currently on craft display |
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| show chassis environment |
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Environmental information & temperature |
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| show chassis routing-engine |
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Displays info about the RE, memory & CPU utilization |
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| show chassis hardware |
detail/frus/ext |
Hardware inventory +
serial numbers; frus shows fans; ext shows eeprom |
| show chassis fpc |
detail |
FPC and PIC status |
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| show chassis fpc pic-satus |
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Displays info for all PICs |
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| show chassis
mac-addresses |
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MAC address |
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| show chassis [feb | scb | ssb
| sfm slot] |
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PFE control board status |
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| System management |
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| show host |
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ns lookup |
show host www.cisco.com |
| show version |
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displays software running on the box |
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| show system software |
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displays installed packages |
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| show system uptime |
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uptime of the router |
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| show system processes |
extensive/summary |
Show the process table |
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| show system statistics |
ip, icmp,… |
Show protocol statistics |
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| show system users |
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Show users currently logged into the system |
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| request system reboot |
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Restarts the system |
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| request system halt |
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Stops the router and prepares it to be shut down |
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| request system reboot |
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Reboot the system |
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| request system snapshot |
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Save config in /altconfig
and software in /altroot before upgrade |
| request support information |
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show tech |
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| request system software add
<pkgname> |
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performs bsd pgkadd; always use jbundle (4->5 jinstall) |
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| restart <process> [
gracefully, immediately, soft] |
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Restart process |
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| Configuration |
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| configuration |
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enters configuration mode |
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| show |
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displays the current configuration |
show protocols ospf |
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| match item |
filters the output of the command |
show config | match firewall |
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| find item |
filters starting with the regular expression |
show config | find firewall |
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| save <file> |
save configuration as <file> |
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| edit |
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modifies configuration statements |
edit protocols ospf |
| set |
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sets configuration statements |
set chassis alarm sonet lo1 red |
| delete |
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removes configuration statements |
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| exit |
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exists edit mode and also config mode |
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| commit |
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save, validate and activate a complete config |
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| commit check |
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just check config do not apply |
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| commit confirmed x |
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activates config for a x
minutes and then ask for confirmation, x=10 default |
| commit and-quit |
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activates config and exists edit mode |
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| rollback 0 |
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deletes the new edited changes and returns to current config |
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| rollback |
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returns to the last commited config |
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| rollback +
commit |
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it will return to previously saved config. Only at the top
level! |
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| load merge
</var/home/user/config> |
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combines the current config and the new one |
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| load override
</var/home/user/config> |
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erases the candidate config and replaces it with
"luis" |
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| load merge terminal |
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copy and paste portions of the config, vanaf root config |
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| show | compare |
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compares the candidate config with the running config |
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| file list |
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displays all files on this user home directory |
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| file list /config |
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displays all files on the /config directory |
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| file show <file> |
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displays content of <file> |
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| Managing files |
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| start shell |
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| /config |
flashdisk |
contains active config and rollbacks 1,2 & 3 |
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| /var/db/config |
harddisk |
contains rollback files 4 through 49 |
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| /var/tmp |
harddisk |
contains core files generated by the daemons when they crash |
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| /var/log |
harddisk |
files generated by the logging and traceoptions |
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| /var/home |
harddisk |
contains subdirectory per user |
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| /altroot |
harddisk |
contains a copy of the root file structure form the flash
drive |
request system snapshot |
| /altconfig |
harddisk |
contains a copy of the /config file structure on the flash
drive |
request system snapshot |
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| Logs |
located in /var/log |
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| show log messages |
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shows all the logs, location is /var/log |
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| show log file-name |
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shows logs about an specific log file |
show log bgp-events.0 |
| show log cli |
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show logs about cli commands issued |
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| show log chassisd |
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show logs about chassis probs |
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| show log install |
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show logs releveant to an install JUNOS version |
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| show log debug |
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show daemon logs |
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| show log messages? |
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displays all the files with their dates of the collected logs |
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| show log inventory |
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shows logs about inventory |
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| monitor start file-name |
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monitors logs in real time |
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| monitor stop |
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stops monitoring |
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| Show interfaces |
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| show interfaces |
extensive |
shows all possible info about an interface |
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|
terse |
shows ip interface brief |
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|
description |
shows interfaces description |
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media |
Display media information |
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statistics |
Display statistics and detailed info |
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routing |
Display routing status |
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| monitor interface |
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monitors interface real-time statistics |
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| monitor traffic |
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prints packet headers to
your terminal screen for info sent/received by the RE |
| monitor start
<var/log/file> |
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prints logfile to your terminal screen |
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| show arp |
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shows ARP entries |
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| clear interfaces statistics so-2/0/1 |
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reset counters & statistics for this particular interface |
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| Routing |
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| show route |
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show ip route |
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| show route protocol [static,
isis…] |
|
show ip route for an specific protocol |
show route protocol static |
| show route x.x.x.x extensive |
|
extensive view of a route |
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| Firewall |
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| show firewall |
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show packet/byte counts for all policing filters |
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| show firewall log |
detail |
log in memory resident
buffer/kernel cache (detail: packet length) |
| clear firewall
[all|filter-name|counter-name] |
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clears counters |
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| show interfaces filters |
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displays all firewall filters on all interfaces |
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| show interfaces policers |
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displays all firewall policers on all interfaces |
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| show policer |
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displays all policers,
where it is used and no. packets processed |
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| Management |
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| ping |
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icmp echo-request/echo-response |
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| ping atm interface
<intf> vci <nr> |
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ping remote atm interface using oam cells |
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| traceroute |
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send udp 33434/ttl=1- receive icmp time-exceeded |
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send udp 33435/ttl=2 - receive icmp time-exceeded |
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… |
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send udp 33439/ttl=6 - receive icmp port unreachable |
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| set t3-options loopback local |
and delete |
sets loopback on PIC towards router |
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| set t3-options loopback
remote |
and delete |
sets loopback on PIC towards far-end |
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| set t3-options bert-period
120 |
|
Bit Error Rate Testing |
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| set t3-options bert-algorithm
all-ones-repeating |
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| set t3-options
bert-error-rate 0 |
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| test interface t3-1/2/0
t3-bert-start |
and stop |
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| show interfaces t3-1/2/0
extensive | find bert |
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| Policy |
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| test policy
<policy-name> 0/0 |
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Pass all routes (0/0) through the policy as test |
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