keyToAddrReadyMap := map[keyString]addressSet{}
	addrReadyMapKeyToPorts := map[keyString][]v1.EndpointPort{}
	for port, addrs := range portToAddrReadyMap {
		key := keyString(hashAddresses(addrs))
		keyToAddrReadyMap[key] = addrs
		if port.Port > 0 { // avoid sentinels
			addrReadyMapKeyToPorts[key] = append(addrReadyMapKeyToPorts[key], port)
		} else {
			if _, found := addrReadyMapKeyToPorts[key]; !found {
				// Force it to be present in the map