Setting Backup Timers - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Configuring Backup WAN Connections
Configuring a Persistent Backup Connection
C a u t i o n
3-66
Make sure that your router is set with the correct time and date. From the
enable mode context, enter:
ProCurve# show clock
If you need to configure the router to receive time from an SNTP server, enter
the following command from the global configuration mode context:
Syntax: sntp server [<hostname>|<A.B.C.D>] [version <1-3 >]
If you want to manually set the clock, enter the following command from the
enable mode context:
Syntax: clock set <hh:mm:ss> <day> <month> <year>

Setting Backup Timers

You can alter the timers that control settings such as the delay between line
failure and backup initialization, between redial attempts, and before primary
line reestablishment.
The default settings are adequate for most applications. However, if both sides
of the connection are allowed to originate calls, you should randomize timers.
When the connection fails, both peers will try to call each other at the same
time, causing a call collision or contention. (This is the "busy" signal.)
Randomizing the timers minimizes the risk of routers calling each other at the
same time and receiving a busy signal. Enter:
ProCurve(config-ppp 1)# backup randomize-timers
You can view a complete list of backup commands by entering backup ? from
the logical interface configuration mode context. Refer to Table 3-10 for a list
of default backup settings and timers and the commands to alter them.