IP over Frame Relay
Frame Relay still has a place as a backbone technology for the following reasons:
- It can support a variety of existing physical interfaces
- Usually frame relay can be implemented to existing equipment as a simple software upgrade
- It is very simple and light to implement and has a very small protocol overhead
- It allows easy configuration of logical network topology, policy routing etc.
- It works well as an interface to ATM backbones
Frame relay does not have the real-time properties of ATM
QoS can to some extent be implemented in frame relay, based on largely the same traffic parameters as ATM