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LOSSARY
Glossary-4
Internet Group Management Protocol (IGMP)
A protocol through which hosts can register with their local router for multicast
services. If there is more than one multicast switch/router on a given subnetwork,
one of the devices is made the “querier” and assumes responsibility for keeping
track of group membership.
In-Band Management
Management of the network from a station attached directly to the network.
IP Multicast Filtering
A process whereby this switch can pass multicast traffic along to participating
hosts.
IP Precedence
The Type of Service (ToS) octet in the IPv4 header includes three precedence bits
defining eight different priority levels ranging from highest priority for network
control packets to lowest priority for routine traffic. The eight values are mapped
one-to-one to the Class of Service categories by default, but may be configured
differently to suit the requirements for specific network applications.
Layer 2
Data Link layer in the ISO 7-Layer Data Communications Protocol. This is related
directly to the hardware interface for network devices and passes on traffic based
on MAC addresses.
Link Aggregation
See Port Trunk.
Link Aggregation Control Protocol (LACP)
Allows ports to automatically negotiate a trunked link with LACP-configured ports
on another device.
Management Information Base (MIB)
An acronym for Management Information Base. It is a set of database objects that
contains information about a specific device.