This read-create Integer32 (3-30) sets the keepalive interval for this specific Frame Relay over IP transport, used to detect whether the remote peer is still reachable. An admin shortens this to detect a failed FRoIP peer more quickly, or lengthens it to reduce keepalive overhead on a stable, low-bandwidth link. For example, a transport to a remote site with a low-bandwidth backhaul might have this keepalive interval lengthened to minimize the overhead keepalive traffic adds to the link.