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DGS-3312SR
Инструкция по эксплуатации Страница: 177

D-Link DGS-3312SR Инструкция по эксплуатации онлайн [177/290] 12494

DGS-3312SR Stackable Gigabit Layer 3 Switch

Interval (1-255)

and is used to troubleshoot incorrectly configured routers. The default is 1 second.

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 grou

Preempt Mode

aster

router. A True entry, along with having the backup router’s priority set higher than the

s participating within the same VRRP group. The default

setting is True.

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 M

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 router

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 connections 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

s backup

s may be

refore

participating in the VRRP group. If the connection to the backup fails, thi

router cannot assume the Master router role. Different critical IP addresse

assigned to different routers participating in the VRRP group, and can the

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.

164

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