The customer's two MSR routers MSR-1 and MSR-2 are interconnected back-to-back through their respective S0/0 interfaces. The frame relay protocol started and encapsulated between the S0/0 interfaces of two MSR routers, where MSR-1 is the frame relay DCE side, and MSR-2 is the frame relay DTE side.
In order to save resources, frame relay sub-interfaces are configured on both routers, which are configured as follows:
MSR-1:
interface Serial0/0.40 p2p
fr dlci 222
ip address 30.2.2.2 255.255.255.252
MSR-2:
interface Serial0/0.100 p2p
fr dlci 222
ip address 30.2.2.1 255.255.255.252
Based on this configuration, you can guess ______. (Multiple choice)