Owner's Manual

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- Active —Mark this item active or inactive in the configuration.
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Interface Name —Fast Ethernet or Gigabit Ethernet interface to configure this VRRP Group.
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Inet Address —Inet Address to configure this VRRP Group. If no Inet address set exists, you can
enter one with a text field.
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Priority —Router's priority for being elected to be the master router in the VRRP group. A larger
value indicates a higher priority for being elected (1 - 255) Default is 100 (for backup routers)
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Accept Data —Select from the pick list.
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Authentication Key —The authentication password. For simple authentication, it can be 1
through 8 characters long. For Message Digest 5 (MD5) authentication, it can be 1 through
16 characters long.
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Authentication Type —On Fast Ethernet or Gigabit Ethernet interfaces only, enable VRRP
authentication and specify the authentication scheme for the VRRP group. If you enable
authentication, you must specify a password by specifying an authentication key.
default–Disable authentication.
simple–Use a simple password. The password is included in the transmitted packet, making
this method of authentication relatively insecure.
md5–Use the MD5 algorithm to create an encoded checksum of the packet. The encoded
checksum is included in the transmitted packet. The receiving routing platform uses
the authentication key to verify the packet, discarding it if the digest does not match.
This algorithm provides a more secure authentication scheme.
- Preempt —When configuring VRRP on Fast Ethernet and Gigabit Ethernet interfaces, configure
whether a backup router can preempt a master router:
Preempt –Allow the master router to be preempted.
No Preempt–Prohibit the preemption of the master router.
default–If you omit this statement, the backup router can preempt a master router.
- Preempt Hold Time —Hold-time before a higher-priority backup router preempts the master
router. This field is only enabled if you select
Preempt . (0 - 3600 seconds).
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Fast Interval —On Fast Ethernet and Gigabit Ethernet interfaces only, configure the interval, in
milliseconds, between VRRP advertisement packets. All routers in the VRRP group must use
the same advertisement interval. (100 - 999 milliseconds).
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Advertisement Interval —On Fast Ethernet and Gigabit Ethernet interfaces only, configure the
interval between VRRP advertisement packets. All routers in the VRRP group must use the
same advertisement interval. (1 - 255 seconds).
NOTE:
Fast Interval and Advertisement Interval are mutually exclusive. Only one of these values can be
configured at one time. The user interface warns if you try to configure both values.