HP 3500YL - Manual (Page 353)

Virtual Router Redundancy Protocol (VRRP)
Configuring VRRP
Changing VR Advertisement Interval and Source IP Address
The advertisement interval is used in one of two ways, depending on whether
a VRRP router is operating as a Master or a Backup.
Syntax: advertise-interval < 1 - 255 >
■ When a VRRP router is operating as Master, this value
specifies the interval at which the router sends an
advertisement notifying the other VRRP routers on the
network or subnet that a Master is active.
■ When a VRRP router is operating as a Backup, it uses
this value to calculate a timeout interval ( 3 x advt­
interval).
The VR instance must be disabled (the default VR state) when
using this command.
(Range: 1 - 255 seconds; Default: 1 second)
For information on advertisements and advertisement inter­
vals, see “Function of the VRRP Advertisement” on page 6-9
Note: All VRRP routers belonging to the same VR must be
configured with the same advertisement interval. As required
in RFC 3768, if a locally configured advertisement interval
does not match the interval received in an inbound VRRP
packet, then the VR drops that packet.
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