3com S7906E 설치 설명서

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You can configure the VF tracking function when VRRP works in either the standard protocol mode 
or the load balancing mode; however, the VF tracking function is effective only when VRRP works 
in the load balancing mode. 
Do not configure VF tracking on an IP address owner. 
By default, the weight of a VF is 255, and its lower limit of failure is 10. 
If the weight of a VF is higher than or equal to the lower limit of failure, the priority of the VF is 
always 255 and does not change with the weight value. Therefore, in case of an uplink failure, only 
when the weight of the VF owner decreases a properly specified value and becomes lower than the 
lower limit of failure, can another VF takes over the VF owner's work and becomes the AVF. 
 
Configuring VRRP Packet Attributes 
Configuration prerequisites 
Before configuring the relevant attributes of VRRP packets, you should first create a VRRP group and 
configure a virtual IPv6 address. 
Configuration procedure 
Follow these steps to configure VRRP packet attributes: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
 
Enter the specified interface 
view 
interface interface-type 
interface-number
 
— 
Configure the authentication 
mode and authentication key 
when the VRRP groups send or 
receive VRRP packets  
vrrp ipv6 vrid virtual-router-id 
authentication-mode simple
 
key 
Optional 
Authentication is not performed 
by default. 
Configure the time interval for 
the Master in the VRRP group 
to send VRRP advertisement 
vrrp ipv6 vrid virtual-router-id 
timer
 advertise adver-interval 
Optional 
100 centiseconds by default 
 
You may configure different authentication modes and authentication keys for the VRRP groups on an 
interface. However, the members of the same VRRP group must use the same authentication mode 
and authentication key. 
Excessive traffic or different timer setting on routers can cause the Backup timer to time out abnormally 
and change the state. To solve this problem, you can prolong the time interval to send VRRP packets. 
Displaying and Maintaining VRRP for IPv6 
To do… 
Use the command… 
Remarks 
Display VRRP group status 
display vrrp ipv6 verbose ] interface 
interface-type interface-number [ vrid 
virtual-router-id ] ] 
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