KTI KGS-3120, Руководство по эксплуатации

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router overrides a lower priority VRRP router. A higher priority will
increase the probability that this router will become the Master
router of the group. A lower priority will increase the probability that
this router will become the backup router. VRRP routers that are
assigned the same priority value will elect the highest physical IP
address as the Master router. The default value is 100.
Advertisement Interval(1-255) Enter a time interval value, in seconds, for sending VRRP message
packets. This value must be consistent with all routers participating
within the same VRRP group and is used to troubleshoot incorrectly
configured routers. The default is 1 second.
Preempt Mode This entry will determine the behavior of backup routers within the
VRRP group by controlling whether a higher priority backup router
will preempt a lower priority Master router. A True entry, along with
having the backup router
’
s priority set higher than the masters
priority, will set the backup router as the Master router. A False
entry will disable the backup router from becoming the Master
router. This setting must be consistent with all routers participating
within the same VRRP group. The default setting is True.
Critical IP Address Enter the IP address of the physical device that will provide the
most direct route to the Internet or other critical network connec-
tions from this virtual router. This must be a real IP address of a
real device on the network. If the connection from the virtual router
to this IP address fails, a new Master will be elected from the
backup routers participating in the VRRP group. If the connection
to the backup fails, this backup router cannot assume the Master
router role. Different critical IP addresses may be assigned to
different routers participating in the VRRP group, and can therefore
define multiple routes to the Internet or other critical network
connections.
Checking Critical IP Use the pull-down menu to enable or disable the Critical IP address
entered above.
Auth. Type Specifies the type of authentication used. The Auth. Type must be
consistent with all routers participating within the VRRP group. The
choices are:
None - Selecting this parameter indicates that VRRP protocol
exchanges will not be authenticated.
Simple - Selecting this parameter will require the user to set a
simple password in the Auth. Data field for comparing VRRP
message packets received by a router. If the two passwords are not
exactly the same, the packet will be dropped.
IP - Selecting this parameter will require the user to set a MD5
message digest for authentication in comparing VRRP messages
received by the router. If the two values are inconsistent, the packet
will be dropped.
Auth. Data This field is only valid if the user selects Simple or IP in the Auth.
Type field. Simple will require the user to enter an alphanumeric
string of no more than eight characters to identify VRRP packets
received by a router. IP will require the user to enter a MD5
message digest for authentication in comparing VRRP messages
received by the router
Click [Apply] to implement changes made.