HP P4459A manual Physical or logical layout of nodes on a network

HP P4459A 8-Port Fibre Loop Switch Installation & Opeartion Guide

Star

A configuration of computing devices within a LAN where each user is connected by links radiating out from a central connection point such as a hub.

Switch Port

A port on a device that can directly connect two devices together through switch connection. The P4459A is such a switch.

Topology

The physical or logical layout of nodes on a network.

WWN

Worldwide Name. It defaults to the lowest value MAC Address assigned to any port.

WW Port Name

Worldwide Port Name. To ensure global uniqueness, the MAC Address prepends 16 bits to create a 64-bit identifier. The first 4 bits are a Network Address Authority (NAA) controlling authority identifier. The next 12 bits are 0-padded. When NAA=1, it means that the WW Port Name follows IEEE 802.3A Universal LAN MAC addressing. Fibre Channel requires each port to assign an unchangeable WW Port Name. See MAC Address.

ULP

Upper Layer Protocol. The protocol that runs on top of Fibre Channel through the FC-4 layer. Well known ULPs that run over Fibre Channel are SCSI and IP.

Zoning

The ability to divide a SAN into a number of independent zones for binding targets to initiators. This allows a logical mapping of a physical configuration.

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