24-Port Managed Gigabit Switch
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 P
ost 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.
Q
QCE
QCE is an acronym for Q
oS Control Entry. It describes QoS
class associated with a particular QCE ID.
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