When two BGP peers support different Hold Time, they will negotiate to support the shortest Hold Time interval they can support.

In VRRP, when the device status changes to Master, it will immediately send free ARP to refresh the MAC table entry of the downstream device, thereby directing user traffic to this device.

In the switching network shown in the figure, all switches run the STP protocol.

When the topology is stable, modifying the sending cycle of the configuration BPDU on which of the following switches can affect the sending cycle of the STD configuration BPDU?

As shown in the figure, SW1 and SW2 have just run RSTP and are now performing spanning tree calculation.

So, which of the following descriptions about the port synchronization process in the P/A mechanism are correct? (Multiple choice)

Which of the following descriptions about OSPF virtual connections is wrong?