Falcon
M-Class
| User Guide
464
PoE
P
ower
O
ver
E
thernet.
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
can limit the bandwidth of received frames. It is located in front
of the ingress queue.
POP3
P
ost
O
ffice
P
rotocol 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 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 (
). 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
P
oint-to-
P
oint
P
rotocol
o
ver
E
thernet.
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
, 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
P
recision
T
ime
P
rotocol, a network protocol for
synchronizing the clocks of computer systems.
Q
Summary of Contents for Falcon Gen-3 M-Class
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Page 107: ...Falcon M Class User Guide 107 Figure 4 57 DSCP Translation...
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Page 187: ...Falcon M Class User Guide 187 Figure 4 99 RADIUS Statistics for Server...
Page 197: ...Falcon M Class User Guide 197 4 11 6 SyncCenter Status Figure 4 104 Sync Center Status...
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Page 358: ...Falcon M Class User Guide 358 Figure 4 216 sFlow Configuration displays...
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