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filtering rule
FTP
host
ICMP
IGMP
IGMP Snooping
GigaX Series L2 Managed Switch User Guide
A rule that specifies what kinds of data the a routing device will
accept and/or reject. Filtering rules are defined to operate on an
interface (or multiple interfaces) and in a particular direction
(upstream, downstream, or both).
File Transfer Protocol
A program used to transfer files between computers connected
to the Internet. Common uses include uploading new or updated
files to a web server, and downloading files from a web server.
A device (usually a computer) connected to a network.
Internet Control Message Protocol
An Internet protocol used to report errors and other
network-related information. The ping command makes use of
ICMP.
Internet Group Management Protocol
An Internet protocol that enables a computer to share information
about its membership in multicast groups with adjacent routers.
A multicast group of computers is one whose members have
designated as interested in receiving specific content from the
others. Multicasting to an IGMP group can be used to
simultaneously update the address books of a group of mobile
computer users or to send company newsletters to a distribution
list.
Snoop the IGMP packets on each port and associate the port
with a layer 2 muticast group.
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