FibroLAN Falcon-RX/812/G/A User Manual page 321

Falcon R-Class | User Guide
message. Fast-leave processing ensures optimal bandwidth management for all hosts on a switched
network, even when multiple multicast groups are in use simultaneously. This processing applies to
MLD and MLD.
HTTP
HTTP is an acronym for 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, when you enter a URL in your
browser, this 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.
HTTPS
HTTPS is an acronym for Hypertext Transfer Protocol over Secure Socket Layer. It is used to indicate
a secure HTTP connection.
HTTPS provide authentication and encrypted communication and is widely used on the World Wide
Web for security-sensitive communication such as payment transactions and corporate logons.
HTTPS is really just the use of Netscape's Secure Socket Layer (SSL) as a sublayer under its regular
HTTP application layering. (HTTPS uses port 443 instead of HTTP port 80 in its interactions with the
lower layer, TCP/IP.) SSL uses a 40-bit key size for the RC4 stream encryption algorithm, which is
considered an adequate degree of encryption for commercial exchange.
ICMP
ICMP is an acronym for Internet Control Message Protocol. It is a protocol that generated the error
response, diagnostic or routing purposes. ICMP messages generally contain information about
routing difficulties or simple exchanges such as time-stamp or echo transactions. For example, the
PING command uses ICMP to test an Internet connection.
IEEE 802.1X
IEEE 802.1X is an IEEE standard for port-based Network Access Control. It provides authentication to
devices attached to a LAN port, establishing a point-to-point connection or preventing access from
that port if authentication fails. With 802.1X, access to all switch ports can be centrally controlled
from a server, which means that authorized users can use the same credentials for authentication
from any point within the network.
MLD
MLD is an acronym for Internet Group Management Protocol. It is a communications protocol used
to manage the membership of Internet Protocol multicast groups. MLD is used by IP hosts and
321