Xblue Networks X-50 Installation Manual page 247

NPT – Network Time Protocol
a packet switched network, using UDP packets via port 123 as the transport layer.
TABLE 13.1 Some Network Time Protocol
time-a.nist.gov
129.6.15.28
NIST, Gaithersburg, Maryland
time-b.nist.gov
129.6.15.29
NIST, Gaithersburg, Maryland
time-a.timefreq.bldrdoc.gov
132.163.4.101
NIST, Boulder, Colorado
time-b.timefreq.bldrdoc.gov
132.163.4.102
NIST, Boulder, Colorado
time-c.timefreq.bldrdoc.gov
132.163.4.103
NIST, Boulder, Colorado
utcnist.colorado.edu
128.138.140.44
University of Colorado, Boulder
P2P – Peer to Peer –
All computers have the ability share information with each other without logging into a server.
This protocol is very helpful with VoIP.
PPPoE – Point-to-Point Protocol over Ethernet –
"ATM", where the DSL modem encapsulates PPP packets inside ATM cells and send them over a WAN Connection.
–
PAP Password Authentication Protocol
tication, which must contain both the ID and password, to the local router when attempting to connect.
– A protocol that defines the ability to synchronize different computer systems over
Network Time Protocol
This transport protocol is used on telephone networks as
–
This requires the requesting device to send an un-encrypted authen-
XBLUE Networks
time.nist.gov
192.43.244.18
NCAR, Boulder, Colorado
nist1.dc.certifiedtime.com
216.200.93.8
Abovnet, North Virginia
nist1.dc.certifiedtime.com
216.200.93.8
Abovnet, North Virginia
nist1.dc.certifiedtime.com
216.200.93.8
Abovnet, North Virginia
nist1.nyc.certifiedtime.com
208.184.49.129
Abovnet, New York City
nist1.sjc.certifiedtime.com
207.126.103.202
Abovnet, San Jose, California
Glossary of Terms
249