Hello, I am going to sit for the CCNA exam within a week. But I am really confused about a frame-relay concept.
I am following the CCNA ICND2 Official exam certification guide of Wendell Odom. In chapter 14, figure 14-4 ("A Partially Meashed Network with One Ip Subnet Per VC") uses point to point subinterfaces.
Interface Serial 0/0/0 of Router "Atlanta" has been configured with 3 subinterface each with different Ip address & different DLCI number.
Router "Charlotte", "Nashville" and "Boston" has been configured with the same DLCI number.
Can anyone please clear the concept for me? As I am using Packet Tracer, I am unable to configure One single interface of a Frame Relay Cloud with same DLCI number for different VC. It is showing "The DLCI number is already in use".
As the figure 14-4 shows Router "Atlanta" is using the DLCI no 51 for all three point to point links, connected to 3 subinterface of its Serial 0/0/0.
As the router's Serial 0/0/0 WAN interface is connected to a single interface of a Frame Relay switch within a Frame Relay Cloud, How can I use same DLCI numbers for 3 different VCs in the same interface of a Frame Relay Cloud?