Brocade TurboIron 24X Series Configuration Guide User Manual
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Brocade TurboIron 24X Series Configuration Guide
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Virtual Switch Redundancy Protocol (VSRP)
VRID IP address
A gateway address you are backing up. Configuring
an IP address provides VRRP-E Layer 3 redundancy in
addition to VSRP LAyer 2 redundancy.
The VRID IP address must be in the same subnet as a
real IP address configured on the VSRP interface, but
cannot be the same as a real IP address configured
on the interface.
NOTE: This parameter is valid only on Layer 3
Switches.
None
Backup priority
A numeric value that determines a backup
preferability for becoming the master for the VRID.
During negotiation, the device with the highest priority
becomes the master.
In VSRP, all devices are backups and have the same
priority by default.
If two or more backups are tied with the highest
priority, the backup with the highest IP address
becomes the master for the VRID.
100 for all backups
Preference of
timer source
When you save a backup configuration, the software
can save the configured VSRP timer values or the
VSRP timer values received from the master.
Saving the current timer values instead of the
configured ones helps ensure consistent timer usage
for all the VRID devices.
NOTE: The backup always gets its timer scale value
from the master.
Configured timer
values are saved
Time-to-Live
(TTL)
The maximum number of hops a VSRP hello packet
can traverse before being dropped. You can specify
from 1 – 255.
2
Hello interval
The amount of time between hello messages from the
master to the backups for a given VRID.
The interval can be from 1 – 84 seconds.
One second
Dead interval
The amount of time a backup waits for a hello
message from the master for the VRID before
determining that the master is no longer active.
If the master does not send a hello message before
the dead interval expires, the backups negotiate
(compare priorities) to select a new master for the
VRID.
Three times the hello
Interval
Backup hello
state and
interval
The amount of time between hello messages from a
backup to the master.
The message interval can be from 60 – 3600
seconds.
You must enable the backup to send the messages.
The messages are disabled by default on backups.
The current master sends hello messages by default.
Disabled
60 seconds when
enabled
TABLE 55
VSRP parameters (Continued)
Parameter
Description
Default
See page...