SMC Networks 6152PL2 FICHE, Management Manual

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Glossary-5
Glossary
one-way hash function, meaning that it takes a message and converts it into a fixed
string of digits, also called a message digest.
Multicast Switching
A process whereby the switch filters incoming multicast frames for services for
which no attached host has registered, or forwards them to all ports contained within
the designated multicast VLAN group.
Multicast VLAN Registration
A method of using a single network-wide multicast VLAN to transmit common
services, such as such as television channels or video-on-demand, across a
service-provider’s network. MVR simplifies the configuration of multicast services by
using a common VLAN for distribution, while still preserving security and data
isolation for subscribers residing in both the MVR VLAN and other standard or
private VLAN groups.
Multiple Spanning Tree Protocol
MSTP can provide an independent spanning tree for different VLANs. It simplifies
network management, provides for even faster convergence than RSTP by limiting
the size of each region, and prevents VLAN members from being segmented from
the rest of the group.
Network Time Protocol
NTP provides the mechanisms to synchronize time across the network. The time
servers operate in a hierarchical-master-slave configuration in order to synchronize
local clocks within the subnet and to national time standards via wire or radio.
Out-of-Band Management
Management of the network from a station not attached to the network.
Port Authentication
See IEEE 802.1X.
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 high-speed logical link that combines several lower-speed physical
links.