单选题When configuring Multicast VPN （MVPN） over an MPLS core， both the Default and Data MDT isconfigured under which configuration mode？（）Arouter（config）#Brouter（config-if）#Crouter（config-vrf）#Drouter（config-router）#Erouter（config-router-af）#
单选题
When configuring Multicast VPN （MVPN） over an MPLS core， both the Default and Data MDT isconfigured under which configuration mode？（）
A
router（config）#
B
router（config-if）#
C
router（config-vrf）#
D
router（config-router）#
E
router（config-router-af）#
参考解析
解析：
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多选题In Multicast VPN （MVPN） implementations， which two of the following statements are regarding the DefaultMDT Group？（）AIt is used for PIM control trafficBIt is optionally configured for a high bandwidth multicast source to reduce multicast traffic replication to uninterested PE routersCWithin the VPF configuration in the PE router， multiple Default MDT groups are configured so each VPF can support multiple multicast sourcesDThere is a reduced multicast state in the MPLS core P routersEWhen multicast traffic exceeds a certain configured threshold， traffic from the Data MDT is switched to the Default MDT to conserve bandwidth
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