Method Less

ptp/protocol/types.go:279–279

Less reports whether p sorts before q. Port identities sort first by clock identity, then their port numbers.

(q PortIdentity)

// String formats PortIdentity same way ptp4l pmc client does
func (p PortIdentity) String() string {
	return fmt.Sprintf("%s-%d", p.ClockIdentity, p.PortNumber)
}

// Compare returns an integer comparing two port identities. The result will be 0 if p == q, -1 if p < q, and +1 if p > q.