多项选择题
Which two functions can be configured on the ERX Edge Router to support MBGP? （）(Choose two.)
A. address-family ipv4 unicast B. address-family vpnv4 unicast C. address-family ipv4 multicast D. address-family vpnv4 multicast
单项选择题 What is one function of MBGP?（）
单项选择题 A BGP router is configured with bgp dampening 8 300 1500 20 route-map 1 .What does the value of 20 represent?（）
单项选择题 BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）
