edge switch 2/32 product manager user guide

Glossary–4 edge switch 2/32 product manager user guide
Glossary
channel path identifier
In a channel subsystem, a value assigned to each installed channel path of the system that
uniquely identifies that path to the system.
channel wrap test
A diagnostic procedure that checks S/390 host-to-Switch connectivity by returning the output
of the host as input. The test is host-initiated, and transmits Fibre Channel frames to a Switch
port. A Switch port enabled for channel wrapping echoes the frame back to the host.
class of Fibre Channel service
Defines the level of connection dedication, acknowledgment, and other characteristics of a
connection.
Class F Fibre Channel service
Used by Switches to communicate across interswitch links (ISLs) to configure, control, and
coordinate a multiswitch fabric.
Class 2 Fibre Channel service
Provides a connectionless (not dedicated) service with notification of delivery or nondelivery
between two N_Ports. In-order delivery of frames is not guaranteed.
Class 3 Fibre Channel service
Provides a connectionless (not dedicated) service without notification of delivery or
nondelivery between two N_Ports. Also known as datagram.
community profile
Information that specifies which management objects are available to what management
domain or SNMP community name.
concurrent firmware upgrade
The CTP card provides two nonvolatile memory regions. Because two firmware versions can
be stored on the card, firmware is upgraded without disrupting Switch operation. Note that the
CTP card on this Switch is an internal component and not a FRU.
concurrent maintenance
Ability to perform maintenance tasks, such as removal or replacement of field-replaceable
units, while a hardware product is operating.