The IPv6 link-local address can be generated through stateless automatic configuration.

When deploying BGP/MPLS IP VPN, when two VPNs have a common site, the common site must not use overlapping address spaces with other sites of the two VPNs.

Which of the following expressions can only match BGP routing entries that pass through AS200 and then AS300?

QinQ technology is a technology that expands the VLAN space. It achieves the function of expanding the VLAV space by adding a layer of 802.10 Tag on the basis of the 802.1Q tag message.
Which of the following statements about QINQ is wrong?

Which of the following statements about VLAN aggregation are correct? (Multiple questions)