FibroLAN Falcon-RX/812/G/A User Manual page 326

Falcon R-Class | User Guide
Power Over Ethernet is used to transmit electrical power, to remote devices over standard Ethernet
cable. It could for example be used for powering IP telephones, wireless LAN access points and other
equipment, where it would be difficult or expensive to connect the equipment to main power supply.
Policer
A policer can limit the bandwidth of received frames. It is located in front of the ingress queue.
POP3
POP3 is an acronym for Post Office Protocol version 3. It is a protocol for email clients to retrieve
email messages from a mail server.
POP3 is designed to delete mail on the server as soon as the user has downloaded it. However, some
implementations allow users or an administrator to specify that mail be saved for some period of
time. POP can be thought of as a "store-and-forward" service.
An alternative protocol is Internet Message Access Protocol (IMAP). IMAP provides the user with
more capabilities for retaining e-mail on the server and for organizing it in folders on the server.
IMAP can be thought of as a remote file server.
POP and IMAP deal with the receiving of e-mail and are not to be confused with the Simple Mail
Transfer Protocol (SMTP). You send e-mail with SMTP, and a mail handler receives it on your
recipient's behalf. Then the mail is read using POP or IMAP. IMAP4 and POP3 are the two most
prevalent Internet standard protocols for e-mail retrieval. Virtually all modern e-mail clients and
servers support both.
PPPoE
PPPoE is an acronym for Point-to-Point Protocol over Ethernet.
It is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet
frames. It is used mainly with ADSL services where individual users connect to the ADSL transceiver
(modem) over Ethernet and in plain Metro Ethernet networks (Wikipedia).
Private VLAN
In a private VLAN, PVLANs provide layer 2 isolation between ports within the same broadcast
domain. Isolated ports configured as part of PVLAN cannot communicate with each other. Member
ports of a PVLAN can communicate with each other.
PTP
PTP is an acronym for Precision TimeProtocol, a network protocol for synchronizing the clocks of
computer systems.
QCE
QCE is an acronym for QoS Control Entry. It describes QoS class associated with a particular QCE ID.
There are six QCE frame types: Ethernet Type, VLAN, UDP/TCP Port, DSCP, TOS, and Tag Priority.
and "High"
Frames can be classified by one of 4 different QoS classes: "Low", "Normal", "Medium",
for individual application.
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