Which two statements are true about IBGP neighbor relationships?（）
- A The BGP split - horizon rule specifies that routes learned via EBGP are never propagated to other IBGP peers.
- B The BGP split horizon rule specifies that routes learned via IBGP are never propagated to other IBGP peers.
- C A full - mesh IBGP requires that neighbor relationships be established between a ll BGP enabled routers in the autonomous system.
- D IBGP neighbors must be in different autonomous systems.
- E An EGP or static routing is required between IBGP neighbors.