多项选择题
Which two steps are required for a Kompella Layer 2 VPN?（）
A. Configure a site id for each ce. B. Configure a VPN label for each VPN. C. Configure a MP-bgp session to each pe. D. Configure an Extended LDP Session to each pe.
单项选择题 Which LSA is flooded across area boundaries?（）
单项选择题 What is the address range associated with the link-local scope?（）
单项选择题 What defines a BGP confederation?（）
