IGMP Snooping
Listening to IGMP Query and IGMP Report packets transferred between IP Multicast routers and IP Multicast host groups to identify IP Multicast group members.
IGMP Query
On each subnetwork, one
IP Multicast Filtering
It is a feature to allow or deny the Client to add the specified multicast group.
Multicast Switching
A process whereby the switch filters incoming multicast frames for services which no attached host has registered, or forwards them to all ports contained within the designated multicast group.
Layer 2
Data Link layer in the ISO
Link Aggregation
See Port Trunk.
Management Information Base (MIB)
An acronym for Management Information Base. It is a set of database objects that contains information about a specific device.
MD5 Message-Digest Algorithm
An algorithm that is used to create digital signatures. It is intended for use with 32 bit machines and is safer than the MD4 algorithm, which has been broken. MD5 is a
Network Time Protocol (NTP)
NTP provides the mechanisms to synchronize time across the network. The time servers operate in a
Port Mirroring
A method whereby data on a target port is mirrored to a monitor port for troubleshooting with a logic analyzer or RMON probe. This allows data on the target port to be studied unobstructively.
Port Trunk
Defines a network link aggregation and trunking method which specifies how to create a single
Remote Authentication Dial-in User Service (RADIUS)
RADIUS is a logon authentication protocol that uses software running on a central server to control access to
Remote Monitoring (RMON)
RMON provides comprehensive network monitoring capabilities. It eliminates the polling required
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