The network topology is shown in the following figure. There are three ASes and all of them use OSPF for intra-AS routing. Hot potato routing is used for inter-AS routing. Please answer the following questions:

1. Complete the flow table for 2d
2. 2d knows which interface to forward the packets toward X by learning from two protocols. What are the two protocols? (OSPF, iBGP, or eBGP)
3. 2c knows which interface to forward the packets toward X by learning from one protocol. What is the protocol? (OSPF, iBGP, or eBGP)

AS3 3b AS1 1b 3a c, 1a 10 AS2 2b 3d x 1d 112 152 AS3,X AS1, AS3,X 20201 2632c Port 2 Port 3 OSPF link weights Port ! Flow table for 2d Destination Port X 2d