[多选] Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used betweenPE and CE in MPLS-VPN networks？（）
A . Site Of Origin SOO. B . SHAM links with OSPF C . BGP cost community D . BGP feature allow-as in E . RPF Reverse Path forwarding. F . Access-list Control in Distance Vector protocol like RIP and EIGRP.
课程组织的连续性
switchort port-security violation选择shutdown表示什么意思？
后生结核
课程组织的顺序性
印度的圣河是：（） 亚穆纳河。 恒河。 哥达瓦利河。 克里希纳河。
Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used betweenPE and CE in MPLS-VPN networks？（）
