Interlogix NS3552-8P-2S-V2, User Manual

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Networking connection
NS3552-8P-2S-V2 User Manual 497
Ethernet Type Ethernet Type, or EtherType, is a field in the Ethernet MAC
header, defined by the Ethernet networking standard. It is used
to indicate which protocol is being transported in an Ethernet
frame.
F
FTP
File Transfer Protocol. It is a transfer protocol that uses the
Transmission Control Protocol (TCP) and provides file writing
and reading. It also provides directory service and security
features.
Fast Leave IGMP snooping Fast Leave processing allows the switch to
remove an interface from the forwarding-table entry without
first sending out group specific queries to the interface. The
VLAN interface is pruned from the multicast tree for the
multicast group specified in the original leave message. Fast-
leave processing ensures optimal bandwidth management for
all hosts on a switched network, even when multiple multicast
groups are in use simultaneously.
H
HTTP
Hypertext Transfer Protocol. It is a protocol that used to
transfer or convey information on the World Wide Web
(WWW).
HTTP defines how messages are formatted and transmitted,
and what actions web servers and browsers should take in
response to various commands. For example, entering a URL
in a browser actually sends an HTTP command to the web
server directing it to fetch and transmit the requested web
page. The other main standard that controls how the World
Wide Web works is HTML, which covers how web pages are
formatted and displayed.
Any web server machine contains, in addition to the web page
files it can serve, an HTTP daemon, a program that is
designed to wait for HTTP requests and handle them when
they arrive. The web browser is an HTTP client, sending
requests to server machines. An HTTP client initiates a request
by establishing a Transmission Control Protocol (TCP)
connection to a particular port on a remote host (port 80 by
default). An HTTP server listening on that port waits for the
client to send a request message.