F5 load balancer

Useful F5 BIG-IP CLI Commands

Bigtop – shows quick summary of stats for virtual and real servers

B interface – display interface information and stats. Can see volumes and any error conditions

B vlan show – display vlan information and stats

B route – display routing table

b conn server/client show – display connections to the ip address ‘ip-addr’

b version – display F5 OS, Linux OS, and hardware platform information

b platform – display hardware information including serial number

b node - display node(server) stats. Entering ‘b node’ will display all nodes

b virtual show – display virtual-server (b virtual  shows all)

b pool - display pool-name

b load – replaces the running config with the config in the stored config file (bigip.conf). This can be invokved at times to reset the existing config if some odd conditions are occurring. It is disruptive.

b load myconfig.conf – replace the running config with the config in myconfig.conf

b config install - restore a backed up config. Move the .ucs file (tftpdir/pub) from DMS to F5

b failover show – display failover status of the device. Useful to understand if failover occurred and when

b config synch show – display config synchronization status. Useful to know if config synch has occurred.

bigstart list  -lists all bigip services

bigstart restart - restarts the specific service (e.g,. bigstart restart httpd ). This can be useful if there is a specific issue –e.g., if http is an issue then ‘bigstart restart httpd’ will restart just the http service.

bigstart restart – stop and restart ALL F5 functions/processes (does NOTperform a Linux/system reboot)

reboot – reboot entire BIGIP system

LTM Log files – located in var/log with a prefix of ‘ltm’. Files are a ring that is overwritten –e.g.,. ltm.1.gz

GTM Log files – located in var/log with a prefix of ‘gtm’. Files are a ring that is overwritten – e.g., gtm.1.gz

Configuration Files

/config/bigip.conf	main configuration file containing objects for local application traffice such as pools, virtuals servers, pools etc.
/config/bigip.license	system licenses
/config/bigip_base.conf	networking components (bigpipe base load) not sync`d for HA setups.
/config/bigip_local.conf	stores virtuals servers for GTM
/config/bigip_sys.conf	stores the Linux/UNIX configuration objects
/etc/alertd/alert.conf	defines custom SNMP OID`s.