cntp Peers Reach

1.3.6.1.4.1.9.9.168.1.2.1.1.21

A shift register of used to determine the reachability status of the peer, with bits entering from the least significant (rightmost) end. A peer is considered reachable if at least one bit in this register is set to one i.e, if the value of this object is non-zero. The data in the shift register would be populated by the NTP protocol procedures.