A.在系統(tǒng)視圖下配置ssm-policy acl-number,配置SSM組地址范圍 B.在系統(tǒng)視圖下配置ssm-policy advance-acl-number,配置SSM組地址范圍 C.在PIM視圖下配置ssm-policy acl-number,配置SSM組地址范圍 D.在PIM視圖下配置ssm-policy advanced-acl-number,配置SSM組播地址