In BGP routing， what does the rule of synchronization mean？（）
- A、A BGP router can only advertise an EBGP learned route， provided that the route is an IGP route in the routing table.
- B、A BGP router can only advertise an IBGP learned route， provided that the route is an IGP route in the routing table.
- C、A BGP router can only advertise an IBGP learned route， provided that the route is an IGP route that is not in the routing table.
- D、A BGP router can only advertise an EBGP learned route， provided that the route is a metric of 0 in the BGP table.
正确答案:B
答案解析:有
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