试题详情

如图所示的PIM—SM组播网络:R3为RP,所有路由器运行OSPF,且每条链路的Cost值相等,R1配置了永远不发起SPT切换,则Receiver1接收组播数据流的稳定路径是以下哪一项?

ASource1-R1-R4-Receiver1

BSource1-R1-R2-R4-Receiver1

CSource1-R1-R2-R3-R4-Receiver1

DSource1-R1-R3-R4-Receiver1