vrrp6 vrid timer advertise
Function
The vrrp6 vrid timer advertise command sets the interval at which the master sends VRRP6 Advertisement packets.
The undo vrrp6 vrid timer advertise command restores the default interval at which the master sends VRRP6 Advertisement packets.
By default, the master sends VRRP6 Advertisement packets every 2 second.
Format
vrrp6 vrid virtual-router-id timer advertise advertise-interval
undo vrrp6 vrid virtual-router-id timer advertise
Parameters
| Parameter | Description | Value |
|---|---|---|
| vrid virtual-router-id | Specifies the VRID of a VRRP6 group. | The value is an integer that ranges from 1 to 255. |
| advertise advertise-interval | Specifies the interval at which the master sends VRRP6 Advertisement packets. | The value is an integer that ranges from 100 to 4095, in centiseconds. |
Usage Guidelines
The master in a VRRP6 backup group needs to send VRRP6 packets indicating that the master router works in the normal state to the backup router. If the backup router does not receive VRRP6 packets after a specified period (usually, three times the interval for sending VRRP6 packets) from the master router, the backup router becomes the master router. The vrrp6 vrid timer advertise command sets the interval at which the master sends VRRP6 Advertisement packets.
PrerequisitesThe vrrp6 vrid virtual-ip command has been executed on an interface to create a VRRP6 group.
PrecautionsIf a longer interval is used, backups in the same VRRP6 group cannot detect the fault on the master in a timely manner, causing packet loss. If a shorter interval is used, system resources are occupied. In addition, when the network traffic is heavy or the network is unstable, backups may not receive packets after the Master_Down_Interval timer expires. As a result, the VRRP6 group status is incorrectly switched. Set the interval based on actual networking.
For VRRP for IPv4, you can set the same interval for sending VRRP Advertisement packets for members in a VRRP group to avoid coexistence of multiple master devices in a VRRP group.
For VRRP for IPv6, even though you set different intervals for sending VRRP Advertisement packets for members in a VRRP6 group, there is only one master in a VRRP6 group.
