System Management


Table 13.1. System Management Monitoring Commands
Information to Monitor Command Example
Versions of software running on the router. show version
 user@host>  show version brief  Model: m160 JUNOS Base OS boot [5.4R1] JUNOS Base OS Software Suite [5.4R1] JUNOS Kernel Software Suite [5.4R1] JUNOS Routing Software Suite [5.4R1] JUNOS Packet Forwarding Engine Support [5.4R1] JUNOS Crypto Software Suite [5.4R1] Juniper Networks Online Documentation Files [5.4R1] 
JUNOS software extensions. show system software
 user@host>  show system software  Information for jbase: Comment: JUNOS Base OS Software Suite [5.4R1] ... 
Current time and how long the router has been operational. show system uptime
 user@host>  show system uptime  Current time:      1998-10-13 19:45:47 UTC System booted:     1998-10-12 20:51:41 UTC (22:54:06 ago) Protocols started: 1998-10-13 19:33:45 UTC (00:12:02 ago) Last configured:   1998-10-13 19:33:45 UTC (00:12:02 ago) by abc 12:45PM  up 22:54, 2 users, load averages: 0.07, 0.02, 0.01 
Current running system configuration. show configuration
 user@host>  show configuration  system {     host-name my-host;     domain-name juniper.net;     backup-router 192.1.1.254;     time-zone America/Los_Angeles; ... 
Verify the syntax of a configuration file. test configuration
 user@host>  test configuration terminal  [Type ^D to end input] system {   host-name my-name;   ok computer;   login; } terminal:3:(8) syntax error: ok   [edit system]     'ok computer;'       syntax error terminal:4:(11) statement must contain additional statements: ;   [edit system login]     'login ;'       statement must contain additional statements configuration syntax failed 
Users currently logged in to the router. show system users
 user@host>  show system users  7:30PM  up 4 days,  2:26, 2 users, load averages: 0.07, 0.02, 0.01 USER     TTY FROM              LOGIN@  IDLE WHAT root     d0  -              Fri05PM 4days -csh (csh) boojum   p0  berry.juniper.net 7:30PM     - cli 
Login permissions for the current user. show cli authorization
 root@host>  show cli authorization  Current user: 'root' login: 'boojum' class '(root)' Permissions:   admin       -- Can view user accounts   admin-control-- Can modify user accounts   clear       -- Can clear learned network information   configure   -- Can enter configuration mode ... 
Log files and their contents and recent user logins. show log
 user@host>  show log  total 57518 -rw-r--r--  1 root  bin      211663 Oct  1 19:44 dcd -rw-r--r--  1 root  bin      999947 Oct  1 19:41 dcd.0 -rw-r--r--  1 root  bin      999994 Oct  1 17:48 dcd.1 -rw-r--r--  1 root  bin      238815 Oct  1 19:44 rpd -rw-r--r--  1 root  bin     1049098 Oct  1 18:00 rpd.0 -rw-r--r--  1 root  bin     1061095 Oct  1 12:13 rpd.1 -rw-r--r--  1 root  bin     1052026 Oct  1 06:08 rpd.2 
Monitor the contents of log files. monitor
 user@host>  monitor start system-log  *** system-log*** Jul 20 15:07:34 hang sshd[5845]: log: Generating 768 bit RSA key. Jul 20 15:07:35 hang sshd[5845]: log: RSA key generation complete. Jul 20 15:07:35 hang sshd[5845]: log: Connection from 204.69.248.180 port 912 Jul 20 15:07:37 hang sshd[5845]: log: RSA authentication for root accepted. Jul 20 15:07:37 hang sshd[5845]: log: ROOT LOGIN as 'root' from trip.jcmax.com Jul 20 15:07:37 hang sshd[5847]: log: executing remote command as root: scp -t / tmp Jul 20 15:07:37 hang sshd[5845]: log: Closing connection to 204.69.248.180 
Recent CLI history. show cli history
 user@host>  show cli history  11:14:14 -- show arp   11:22:10 -- show cli authorization   11:27:12 -- show cli history 
Check host reachability and network connectivity. ping
 user@host>  ping boojum  PING boojum.juniper.net (192.156.169.254): 56 data bytes 64 bytes from 192.156.169.254: icmp_seq=0 ttl=253 time=1.028 ms 64 bytes from 192.156.169.254: icmp_seq=5 ttl=253 time=1.044 ms ^C [abort] 
Check the reachability of a remote ATM node. ping atm
 user@host>  ping atm vci 0.128 interface at-5  /3/0 53 byte oam cell received on (vpi=0 vci=128): seq=1 53 byte oam cell received on (vpi=0 vci=128): seq=2 ^C[abort] --- atmping statistics --- 2 cells transmitted, 2cells received, 0% cell loss 
Check the reachability of a remote VPN node. ping vpn-interface
 user@vpnhost>  ping vpn-interface fe-1/1/0.1 192.168.197.94 local   192.168.197.93 count 3  PING 192.168.197.94 (192.168.197.94): 56 data bytes 64 bytes from 192.168.197.94: icmp_seq=0 ttl=255 time=0.866 ms 64 bytes from 192.168.197.94: icmp_seq=1 ttl=255 time=0.728 ms 64 bytes from 192.168.197.94: icmp_seq=2 ttl=255 time=0.753 ms --- 192.168.197.94 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.728/0.782/0.866/0.060 ms 
Determine the route to a network system. traceroute
 user@host>  traceroute venus  traceroute to venus.juniper.net (192.156.169.254), 30 hops max, 40 byte packets  1  alice (192.168.1.254)  2.370 ms  2.853 ms  0.367 ms  2  snark (192.168.255.250)  0.778 ms  2.937 ms  0.446 ms  3  boojum (192.156.169.254)  7.737 ms  89.905 ms  0.834 ms 
Network connection information. show system connections
 user@host>  show system connections  Active Internet connections (including servers) Proto Recv-Q Send-Q  Local Address          Foreign Address        (state) tcp        0      2  192.168.4.16.513       208.197.169.254.894    ESTABLISHED tcp        0      0  192.168.4.16.513       208.197.169.195.945    ESTABLISHED tcp        0      0  *.23                   *.* LISTEN tcp        0      0  *.22                   *.* LISTEN tcp        0      0  *.513                  *.* LISTEN tcp  0  0 *.514   *.* LISTEN tcp  0  0 *.21    *.* LISTEN udp  0  0 192.168.4.16.1634208.197.169.249.2049 udp  0  0 192.168.4.16.1627208.197.169.254.2049 udp  0  0 192.168.4.16.1371208.197.169.195.2049 
Open secure shell connections between the local router and a remote system. ssh
 user@host>  ssh berry  Host key not found from the list of known hosts. Are you sure you want to continue connecting (yes/no)? yes Host 'berry' added to the list of known hosts. boojun@berry's password: Last login: Sun Jun 21 10:43:42 1998 from junos-router % ... % exit user@host> 
Open a telnet session to a remote system. telnet
 user@host>  telnet 192.154.1.254  Trying 192.154.169.254... Connected to berry.juniper.net. Escape character is '^]'. ttypa login: <Control>] telnet> quit Connection closed. user@host> 
NTP peers and their state. show ntp associations
 user@host>  show ntp associations  remote           refid      st t when poll reach   delay   offset    disp ============================================================================== *wolfe-gw.junipe tick.ucla.edu    2 u   43   64  377     1.86    0.319    0.08 
NTP peer variables . show ntp status
 user@host>  show ntp status  status=06f4 leap_none, sync_ntp, 15 events, event_peer/strat_chg system="FreeBSD", leap=00, stratum=4, rootdelay=7.90, rootdispersion=22.99, peer=23732, refid=olive-oyl.juniper.net, reftime=b97c36cf.bed61000  Wed, Aug 12 1998 15:44:15.745, poll=7, clock=b97c3715.ba307000  Wed, Aug 12 1998 15:45:25.727, phase=-0.283, freq=-23633.96, error=0.695 
FPC information show pfe fpc
 user@host>  show pfe fpc 1  FPC 1 status:   Slot:                 Present   State:                Online   Last State Change:    2000-01-10 18:12:27 UTC   Uptime:               1d 03:31   Failures:             0   Pending:              0 PFE listener statistics: ... PFE IPC statistics: ... PFE socket-buffer mbuf depth: ... PFE socket-buffer bytes pending transmit: ... 
Packet Forwarding Engine information. show pfe terse
 user@host>  show pfe terse  Slot Type Slot    State   Flags Uptime   0  SFM  Present Online  0x0bf 01:25:42   2  SFM  Present Online  0x0bf 01:25:40   0  FPC  Present Online  0x102 01:25:57   1  FPC  Present Online  0x102 01:25:55   2  FPC  Present Online  0x102 01:25:53 
Packet Forwarding Engine next -hop information. show pfe next-hop
 user@host>  show pfe next-hop  SFM 0 Nexthop Info:    ID      Type      Interface   Protocol         Encap  Next Hop Addr    MTU ... 
SCB information show pfe scb
 user@host>  show pfe scb  SCB status:   Slot:                 Present   State:                Online   Last State Change:    1999-02-05 11:02:36 UTC   Uptime:               1d 02:31   Failures:             0   Pending:              0 PFE listener statistics: ... PFE IPC statistics: ... 
SFM information show pfe sfm
 user@host>  show pfe sfm 1  SFM 1 status:   Slot:                 Offline   State:                Init   Last State Change:    2000-03-01 07:45:55 UTC   Downtime:             17:47:29   Failures:             167   Pending:              0 PFE listener statistics: ... PFE IPC statistics: ... 
System memory and buffer usage information. show system buffers
 user@host>  show system buffers  853 mbufs in use:         2 mbufs allocated to packet headers         37 mbufs allocated to protocol control blocks         28 mbufs allocated to socket names and addresses         2 mbufs allocated to socket send data         400 mbufs allocated to pfe refill data         384 mbufs allocated to fxp data 784/944 mbuf clusters in use 1994 Kbytes allocated to network (83% in use) 0 requests for memory denied 0 requests for memory delayed 0 calls to protocol drain routines 
Software processes running on the router. show system processes
 user@host>  show system processes brief  last pid:   543;  load averages:  0.00,  0.00,  0.00    18:29:47 37 processes:  1 running, 36 sleeping Mem: 25M Active, 3976K Inact, 19M Wired, 8346K Buf, 202M Free Swap: 528M Total, 64K Used, 528M Free 
Systemwide protocol- related statistics. show system statistics
 user@host>  show system statistics  ip: ... icmp: ... tcp: ... udp: ... igmp: ... arp: ... clnl: ... esis: ... 
Statistics about amount of free disk space in the router's file systems. show system storage
 user@host>  show system storage  Filesystem                             1K-blocks     Used    Avail Capacity  Mon /dev/wd1s1a                                65687    28888    31545 48%    / devfs                                         16       16        0 100%    dut devfs                                         16       16        0 100%    /d/ 
Routing, routing protocol, and interface tasks that are currently running. show task
 user@host>  show task summary  Pri Task Name                           Pro  Port So Flags  10 IF  15 LABEL  15 ISO  15 INET                                           7  20 Aggregate  20 RT  30 ICMP                                  1        9  39 ISIS I/O                                      12  40 IS-IS                                         10  40 BGP RT Background                                <LowPrio>  40 BGP.0.0.0.0+179                           179 15 <Accept LowPrio>  50 BGP_69.192.168.201.234+179                179 17 <LowPrio>  50 BGP_70.192.168.201.233+179                179 16 <LowPrio>  50 BGP_Group_69_153                                 <LowPrio>  50 BGP_Group_70_153                                 <LowPrio>  50 ASPaths  60 KRT                                 255        1  60 Redirect  70 MGMT.local                                    14 <LowPrio>  70 MGMT_Listen./var/run/rpd_mgmt                 13 <Accept LowPrio>  70 SNMP Subagent./var/run/sub_rpd.sock            8 <LowPrio> 
State and checksum value for files in a file system. show system audit
 user@host>  show system audit root-only  #          user: root #       machine: my-host #          tree: / date: Fri Feb 11 21:21:46 2000 # . /set type=file uid=0 gid=0 mode=0755 nlink=1 .               type=dir nlink=23 size=1024 time=950252640.0     .cshrc      uid=3 gid=7 mode=0644 size=177 time=939182975.0 \                 md5digest=f414e06fea6bd646244b98e13d6e6226     .kernel.jkernel.backup \                 mode=0744 size=1934552 time=944688902.0 \                 md5digest=2c343cf0bd9fea8f04f78604feed7aa4 ... 
Hostname lookup using DNS. show host
 user@host>  show host snark  snark.boojum.net has address 192.168.1.254 user@host> show host 192.168.1.254 Name: snark.boojum.net Address: 192.168.1.254 Aliases: 
Contents of the ARP table. show arp
 user@host>  show arp  MAC Address       Address         Name                     Flags 00:00:0c:06:2c:0d 192.168.1.2     firewall.my.net 
Zero the contents of the ARP table. clear arp
 user@host>  clear arp  user@host> 
Restart a JUNOS software process. restart
 user@host>  restart interfaces  interfaces process terminated interfaces process restarted user@host> 
Install software bundles or packages onto the router. request system software add
 user@host>  request system software add 5.4R1-signed.tgz  Initializing... Using /packages/jbase-5.4R1 ... 
Remove software bundles or packages from the router. request system software delete
 user@host>  request system software delete 5.4R1-signed.tgz  
Roll back to previously installed version. request system software rollback
 user@host>  request system software rollback  
Check candidate software compatibility against the current configuration. request system software validate
 user@host>  request system software validate 5.3R1.tgz  Checking compatibility with configuration Initializing... Using /packages/jbase-5.4R1 ... 
Stop the routing software. request system halt
 user@host>  request system halt  Halt the system ? [yes,no] (no) yes *** FINAL System shutdown message from root@lab8 *** System going down IMMEDIATELY Terminated ... syncing disks... 11 8 done The operating system has halted. Please press any key to reboot. 
Reboot the routing software. request system reboot
 user@host>  request system reboot  Reboot the system ? [yes,no] (no) user@host> user@host> request system reboot at 2300 message "Maintenance time!" Reboot the system ? [yes,no] (no) yes shutdown: [pid 186] *** System shutdown message from root@berry.network.net *** System going down at 23:00 
Display pending system halts or reboots. show system reboot
 user@host>  show system reboot  reboot requested by root at Wed Feb 10 17:40:46 1999 [process id 17885] 
Clear a pending system halt or reboot. clear system reboot
 user@host>  clear system reboot  reboot requested by root at Sat Dec 12 19:37:34 1998 [process id 17855] Terminating... 
Back up the file systems on the router. request system snapshot
 user@host>  request system snapsho  t umount: /altroot: not currently mounted Copying / to /altroot.. (this may take a few minutes) umount: /altconfig: not currently mounted Copying /config to /altconfig.. (this may take a few minutes) The following filesystems were archived: / /config 
Copy a file to another location on the router or to another system on the network. file copy
 user@host>  copy /var/tmp/rpd.core.4 berry:/c/junipero/tmp  ...transferring.file......           0 KB    0.3 kB/s  ETA: 00:00:00  100% 
List files and directories on the router. file list
 user@host>  file list /var/tmp  dcd.core rpd.core snmpd.core 
Rename a file on the router. file rename
 user@host>  file rename /var/tmp/dcd.core /var/tmp/dcd.core.99  0413 user@host>  file list /var/tmp  dcd.core.990413 rpd.core snmpd.core 
Display the contents of a file. file show
 user@host>  file show /var/log/messages  Apr 13 21:00:08 romney /kernel: so-1/1/2: loopback suspected; going to standby. Apr 13 21:00:40 romney /kernel: so-1/1/2: loopback suspected; going to standby. Apr 13 21:02:48 romney last message repeated 4 times Apr 13 21:07:04 romney last message repeated 8 times Apr 13 21:07:13 romney /kernel: so-1/1/0: Clearing SONET alarm(s) RDI-P Apr 13 21:07:29 romney /kernel: so-1/1/0: Asserting SONET alarm(s) RDI-P Apr 13 21:07:36 romney /kernel: so-1/1/2: loopback suspected; going to standby. Apr 13 21:08:08 romney /kernel: so-1/1/2: loopback suspected; going to standby. ... 
Delete a file on the router. file delete
 user@host>  file delete /var/tmp/snmpd.core  user@host> file list /var/tmp dcd.core rpd.core 
Send messages to users currently logged in to the router. request message
 user@host>  request message message   "   Maintenance window in 10 minutes   "   user boojum  Message from user@host on ttyp0 at 20:27 ... Maintenance window in 10 minutes EOF 
Display boot messages. show system boot-messages
 user@host>  show system boot-messages  Copyright (c) 1992-1998 FreeBSD Inc. Copyright (c) 1996-2000 Juniper Networks, Inc. All rights reserved. ... 
Collect system information before contacting customer support. request support information
 user@host>  request support information  save filename  Wrote 1143 lines of output to 'filename' user@host> 


Juniper Networks Field Guide and Reference
Juniper Networks Field Guide and Reference
ISBN: 0321122445
EAN: 2147483647
Year: 2002
Pages: 185

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