Return a dictionary containing a summary of the Dot11
        elements fields

def network_stats(self):
        """Return a dictionary containing a summary of the Dot11
        elements fields
        """
        summary = {}
        crypto = set()
        akmsuite_types = {
            0x00: "Reserved",
            0x01: "802.1X",
            0x02: "PSK"
        }
        p = self.payload
        while isinstance(p, Dot11Elt):
            if p.ID == 0:
                summary["ssid"] = plain_str(p.info)
            elif p.ID == 3:
                summary["channel"] = ord(p.info)
            elif isinstance(p, Dot11EltCountry):
                summary["country"] = plain_str(p.country_string[:2])
                country_descriptor_types = {
                    b"I": "Indoor",
                    b"O": "Outdoor",
                    b"X": "Non-country",
                    b"\xff": "Ignored"
                }
                summary["country_desc_type"] = country_descriptor_types.get(
                    p.country_string[-1:]
                )
            elif isinstance(p, Dot11EltRates):
                summary["rates"] = p.rates
            elif isinstance(p, Dot11EltRSN):
                if p.akm_suites:
                    auth = akmsuite_types.get(p.akm_suites[0].suite)
                    crypto.add("WPA2/%s" % auth)
                else:
                    crypto.add("WPA2")
            elif p.ID == 221:
                if isinstance(p, Dot11EltMicrosoftWPA) or \
                        p.info.startswith(b'\x00P\xf2\x01\x01\x00'):
                    if p.akm_suites:
                        auth = akmsuite_types.get(p.akm_suites[0].suite)
                        crypto.add("WPA/%s" % auth)
                    else:
                        crypto.add("WPA")
            p = p.payload
        if not crypto:
            if self.cap.privacy:
                crypto.add("WEP")
            else:
                crypto.add("OPN")
        summary["crypto"] = crypto
        return summary