Frame Relay has a method of prioritization based on the data-link connection identifier (DLCI) the traffic will be using. Use the command frame-relay interface-queue priority from map class configuration mode to assign a priority to a DLCI.
You can configure Enhanced Interior Gateway Routing Protocol (EIGRP) to use only a portion of a link's bandwidth, and the percentage is flexible. Using the ip bandwidth-percentage eigrp command, you can allow EIGRP to use a small amount, such as up to 10% of total bandwidth, or a large amount, such as 120%, for subinterface configurations.
You can use Inverse-ARP to auto-configure Frame Relay routers to discover the other end of the network.
You can establish a Frame Relay DLCI-to-network-address mapping using the frame-relay map command. Adding the option broadcast to the end of the command allows broadcast traffic to be forwarded across some links that would otherwise restrict the traffic.
You can configure TCP header compression on a Frame Relay link, but to ensure it is effective, use the command show frame-relay ip tcp header compression. TCP header compression is most effective on packets with a small payload in relation to their header size, such as a Telnet packet or a Voice over IP (VoIP) stream.
