The value of tmnxPtpPeerPortState indicates the current state of the
PTP port used when communicating with the remote peer.
If tmnxPtpClockClockType is either 'ordinarySlave (1)' or
'ordinaryMaster (2)', the value of tmnxPtpPeerPortState is the same as
tmnxPtpClockPortState.
The value of this object corresponds to the
portDS.portState data set member defined in IEEE Std 1588-2008.