HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual page 163

Glossary
segment
A fabric segments when one or more switches cannot join the fabric because of various
reasons. The switch or switches remain as separate fabrics.
segmented E_Port
See segmented expansion port.
segmented expansion port
Segmented E_Port. E_Port that has ceased to function as an E_Port within a multiswitch fabric
due to an incompatibility between the fabrics that it joins. See also fabric loop port; fabric port;
generic port; hub port; node loop port; node port.
serial crossbar assembly
SBAR. The assembly is responsible for Fibre Channel frame transmission from any Director
or Switch port to any other Director or Switch port. Connections are established without
software intervention.
serial port
A full-duplex channel that sends and receives data at the same time. It consists of three wires:
two that move data one bit at a time in opposite directions, and a third wire that is a common
signal ground wire.
server
A computer that provides shared resources, such as files and printers, to the network. Used
primarily to store data, providing access to shared resources. Usually contains a network
operating system.
shared mode
If a Director or Switch is in shared mode, all devices on the loop share the 100MB bandwidth
available on the loop. In shared mode, only one end device can communicate with another
device through the fabric loop port (FL_Port) on the Director or Switch.
simple mail transfer protocol
SMTP. A transmission control protocol/Internet protocol (TCP/IP) protocol that allows the
user to create, send, and receive text messages. SMTP protocols specify how messages are
passed across a link from one system to another. They do not specify how the mail application
accepts, presents, or stores the mail.
simple network management protocol
SNMP. A transmission control protocol/Internet protocol (TCP/IP)-derived protocol governing
network management and monitoring of network devices.
simple network management protocol community
SNMP community. Also known as SNMP community string. SNMP community is a cluster of
managed products (in SNMP terminology, hosts) to which the server or managed product
running the SNMP agent belongs.
embedded web server user guide Glossary–33