You are a network operator who wants to add a second ISP connection and remove the default route to the existing ISP. You decide to deploy the BGP protocol in the network. What two statements are correct in this scenario? (Choose two.)
A.
IBGP updates the next-hop attribute to ensure reachability within an AS.
B.
IBGP peers advertise routes received from EBGP peers to other IBGP peers.
C.
IBGP peers advertise routes received from IBGP peers to other IBGP peers.
D.
EBGP peers advertise routes received from IBGP peers to other EBGP peers.
The rules are as simple as follows:
1. IBGP peers advertise routes received from EBGP peers to other IBGP peers.
2. EBGP peers advertise routes learned from IBGP or EBGP peers to other EBGP peers.
https://community.juniper.net/discussion/understanding-how-ibgpebgp-behaves-in-junos
An IBGP peer will not advertise routes learned from an IBGP peer to another IBGP peer. That is why IBGP requires either a full mesh or route reflectors.
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