In firewall hot standby networking, which of the following protocols can be used to implement a switchover of a VRRP group?

C

Principles of the VGMP protocol:

• VGMP status (active/standby).

•  If the status of the VGMP group on an firewall is Active, all VRRP groups in this VGMP group are in Active state. In this case, all packets pass through the firewall and the firewall becomes the active device. The status of the VGMP group on the other firewall is Standby, and this firewall becomes the standby device.

• The priority VGMP group is dynamically adjusted base don the status of the member VRRP groups, triggering an active/standby switchover of the two firewalls.

• VGMP hello packet.

• The active VGMP group regularly sends hello packets to the standby VGMP group to inform the latter of its own running status, including the priority and the status of VRRP members. The implementation is similar to that of VRRP.

• The two firewalls use hello packets to Exchange their status information.

• The default interval for sending VGMP helle packets is 1s. If the standby firewall does not receive any hello packet from the active firewall winthin three hello packet intervals, the standby firewall considers that the active firewall fails, and switches to the Active state.

https://forum.huawei.com/enterprise/en/hot-standby-protocol-system/thread/591522-867

Hi, friend!

The answer is C