Glossary
B-7
MAC (media access control)
The data link layer sublayer responsible for scheduling,
transmitting, and receiving data on a shared medium local area
network.
mask
Specified a subset of a larger set of data to be included for
comparison and analysis. For example, in switch filtering, a mask
might be configured to include only the first four address bits as
the basis for filtering decisions.
Mbps (megabits per second)
1 million bits per second.
MIB (management information base)
A collection of objects unique to a specific device that can be
accessed via a network management protocol. The ELS10-26 has its
own MIB.
multicast
Packets destined for more than one address.
multicast (broadcast) storm
Excessive multicast packet traffic, typically generated by a faulty
device. Multicast storms can cause severe network performance
problems.
network
Interconnected computer systems, terminals, and data
communication facilities. A network must have at least three
endpoints and may have any number of links and nodes.
node
Any device connected to a communication network, for example a
computer, workstation, printer, server, concentrator, bridge, and
switch.