Specifications

Chapter 6
6-8
To configure gateway fail-safe in BIG/db
To enable gateway fail-safe in BIG/db, you need to change the settings of
three specific BIG/db database keys using the bigpipe db command. The
keys set the following values:
• The IP address of the router
• The ping interval
• The timeout period
To set the IP address of the router, type the following entry, where
<gateway IP> is the IP address, or host name, of the router you want to
ping:
b db set Local.Bigip.GatewayPinger.Ipaddr=<gateway IP>
To set the ping interval, type the following entry, where <seconds> is the
number of seconds you want the BIG-IP to wait before pinging the router:
b db set Local.Bigip.GatewayPinger.Pinginterval=<seconds>
To set the timeout, type the following entry, where <seconds> is the number
of seconds you want the BIG-IP to wait before marking the router down:
b db set Local.Bigip.GatewayPinger.Timeout=<seconds>
After you make these changes, you must restart bigd to activate the gateway
pinger:
bigstart reinit bigd
For more information about BIG/db and using bigpipe db, see Chapter 9,
BIG/db Configuration Keys.
To enable gateway fail-safe from the command line
You can toggle Gateway fail-safe monitoring on or off from the command
line using the bigpipe gateway command.
For example, arm the gateway fail-safe using the following command:
b global gateway failsafe arm
To disarm fail-safe on the gateway, enter the following command:
b global gateway failsafe disarm
To see the current fail-safe status for the gateway, enter the following
command:
b global gateway failsafe show
Finding gateway fail-safe messages
The destination for gateway fail-safe messages is set in the standard syslog
configuration (/etc/syslog.conf), which directs these messages to the file
/var/log/bigd. Each message is also written to the BIG-IP console
(/dev/console).