McDATA 3000 Mirroring, Nport, NLport, Node number, Peripheral Component, Interconnect, Protocol

		Glossary
mirroring
	A fault tolerance method in which a backup data storage device
	maintains data identical to that on the primary device and can
	replace the primary if it fails.
N_port	N_port is a node port, or a port on a disk or computer. An N_port can
	only communicate with another N_port on another node, or to a
	switch.
NL_port	Node Loop port; a port supporting the Arbitrated Loop protocol.
node number	In UltraNet Edge 3000 networking, a node number is a number
	assigned to a specific UltraNet Edge 3000. Each node number must
	be unique within the network. Valid values are 00–FF
	(hexadecimal). The node number is an arbitrary assignment; you can
	use any numbering convention. The default is zero.
OSPF	Abbreviation for Open Shortest Path First, a routing protocol
	developed for IP networks based on the shortest path first or
	link-state algorithm. Routers use link-state algorithms to send
	routing information to all nodes in an internetwork by calculating the
	shortest path to each node based on a topography of the Internet
	constructed by each node. Each router sends that portion of the
	routing table (keeps track of routes to particular network
	destinations) that describes the state of its own links, and it also
	sends the complete routing structure (topography). The advantage of
	shortest path first algorithms is that they result in smaller more
	frequent updates everywhere. They converge quickly, thus
	preventing such problems as routing loops and Count-to-Infinity
	(when routers continuously increment the hop count to a particular
	network). This makes for a stable network. The disadvantage of
	shortest path first algorithms is that they require a lot of CPU power
	and memory. In the end, the advantages out weigh the disadvantages.
	OSPF Version 2 is defined in RFC 1583. It is rapidly replacing RIP
	on the Internet.
PCI	See Peripheral Component Interconnect.
Peripheral Component	A 32-bit local bus(or 64-bit local bus for ATM OC-12) that can
Interconnect	transfer data between the main microprocessor (the CPU) and
	peripherals at up to 132 Mbps.
peripheral device	A piece of equipment such as a printer, monitor, disk, or tape unit,
	that is not physically part of the computer.
protocol	A set of conventions governing the treatment and the formatting of
	data in electronic environments (between computers, computers and
	devices, or over computer networks).

Glossary

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