多选题What are two purposes of the 224.0.1.40 address in Auto-RP?（）AConfigured mapping agents listen to this address.BMapping agents select RP for a group based on highest IP address of all the group's C-RPs.CRP mapping agent advertises complete list of grou
题目
多选题
What are two purposes of the 224.0.1.40 address in Auto-RP?（）
A
Configured mapping agents listen to this address.
B
Mapping agents select RP for a group based on highest IP address of all the group's C-RPs.
C
RP mapping agent advertises complete list of group-to-RP mappings.
D
All configured PIM-SM routers listen to this address and learn the correct RP to use for each known group.