HP StorageWorks Fabric OS 5.0.0 Features Overview (AA-RW1NA-TE, May 2005)

Glossary30
credit As it applies to Fibre Channel technology, the number of receive buffers available to
transmit frames between ports.
deskew Related to the HP Trunking feature. The time difference between traffic traveling over
each ISL other than the shortest ISL in the group and traffic traveling over that
shortest ISL. The deskew number corresponds to nanoseconds divided by 10. The
firmware automatically sets the minimum deskew value of the shortest ISL to 15.
DH-CHAP Diffie-Hellman Challenge-Handshake Authentication Protocol. An implementation of
CHAP using Diffie-Hellman encryption. See also CHAP.
digital certificate An electronic document issued by a CA (certificate authority) to an entity,
containing the public key and identity of the entity. Entities in a secure fabric are
authenticated based on these certificates.
director An HP StorageWorks Core Switch 2/64 or SAN Director 2/128 switch.
DLS Dynamic load-sharing. Dynamic distribution of traffic over available paths. Allows
for recomputing of routes when an Fx_Port or E_Port changes status.
domain ID A unique identifier for all switches in a fabric, used in routing frames. Usually
automatically assigned by the principal switch but can be assigned manually. The
domain ID for an HP StorageWorks switch can be any integer between 1 and
239.
embedded port An embedded port (or domain controller) communicates and get updates from
other switches' embedded ports. The well-known address is fffcdd, where dd =
domain number.
enabled zone
configuration
The currently enabled configuration of zones. Only one configuration can be
enabled at a time.
E_Port Expansion port. A standard Fibre Channel mechanism that enables switches to
network with each other, creating an ISL. See also ISL.
Ethernet Popular protocols for LANs.
EX_Port A type of E_Port that connects an FC router to an edge fabric. EX_Ports limit the
scope of fabric services scope but provide device connectivity using FC-NAT.
fabric A collection of Fibre Channel switches and devices, such as hosts and storage. Also
referred to as a switched fabric.
Fabric Manager An optionally licensed HP software product. Fabric Manager is a GUI that allows
for fabric-wide administration and management. Switches can be treated as groups,
and actions such as firmware downloads can be performed simultaneously.