BinTec RS353j User Manual page 494

19 Local Services
480
Field
Advertisement send in-
terval
Master down trials
Pre-empt mode (go
back into master state)
Description
Determine how often a BRRP advertisement packet is sent if
the virtual router is defined as master. Only the current master
sends via multicast BRRP advertisements, which also contain
the ID and the priority of the master.
Possible values are whole numbers between
value is indicated in seconds and the default value is 1.
An advertisement timer based on the sending interval for ad-
vertisements runs in the router and an advertisement packet is
sent when the timer expires.
Define the number of BRRP advertisements that must fail be-
fore the backup router with the lowest priority assumes that the
master is inactive and takes over the role of master.
A master down timer based on the Master down trials para-
meter runs in the router; when this timer expires, the backup as-
sumes that the master is not reachable if no advertisement has
been received.
The effective master down interval is the time calculated from
the number of expected but omitted BRRP advertisements, the
advertisement interval and the skew time, which adds a minim-
um period depending on the priority. The higher the priority, the
shorter the time added. Consequently, a backup router with a
higher priority responds more quickly than a router with lower
priority).
Possible values are whole numbers between
default value is .
Define whether a backup router with higher priority has priority
over a master router with low priority.
Pre-empt mode is used to prevent unnecessary switching.
The function is enabled with
er priority always has priority. This means that when the actual
master router is accessible once more, it is always enabled. If
the function is not enabled, the currently enabled backup router
continues to be enabled even when the actual master router is
accessible once more, although the priority of the master router
is higher than the priority of the backup router which is currently
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