This object reports the computed smooth round-trip time for packets exchanged with this specific EIGRP neighbor. EIGRP uses this value to calculate retransmission timers for reliable packets sent to that neighbor, so an admin seeing an unusually high value for one neighbor compared to its peers would expect that neighbor's reliable EIGRP exchanges, like updates and queries, to tolerate longer round-trip delays before considering a retransmission necessary, a useful diagnostic when that same neighbor also shows unusual query and reply timing behavior. A neighbor reached over a satellite link might show this value in the hundreds of milliseconds compared to single-digit milliseconds for a directly-connected LAN neighbor, and an admin would use that expected difference to distinguish abnormally high latency from normal for this link type.