Appendices C
Jabber
A frame greater than the maximum legal size (greater than 1518 bytes) with a good or bad frame check sequence. In general, you should not see jabbers. The most likely causes of jabbers are a faulty NIC/driver or perhaps a cabling problem.
Jitter
Variability in latency, or delay. If a network provides varying levels of latency (i.e., different waiting times) for different packets or cells, it introduces jitter, which is particularly disruptive to audio communications because it can cause audible pops and clicks.
LAN (Local Area Network)
A physical network technology used over short distances (up to a few thousand meters) to connect many workstations and network devices using a communication standard (Token Ring or Ethernet, for example).
Late Collision
A collision that occurs after the first 64 bytes in a frame. In
Layer
One of seven levels in the Open Systems Interconnection (OSI) reference model. See OSI.
Link Pulse
A
Manufacturer Prefix
The standard partial address used to identify a particular manufacturer. The prefix of the address is predefined uniquely for each manufacturer, while the remainder of the address uniquely identifies the station.
Master Browser
The Master Browser maintains the browse list, a list of all servers in the master browser’s domain or workgroup.
MBPS
Millions of bits per second. See BPS.
Multicast
Packets that are directed to a group of nodes rather than to a single node or all nodes. This is contrasted to a broadcast packet, which is directed to all nodes.