User manual

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McDATA Sphereon™ 4500 Fabric Switch Product Manager User Manual
Glossary
O
offline sequence Sequence sent by the transmitting port to indicate that it is attempting
to initialize a link and has detected a problem in doing so.
offline state When the switch is in the offline state, all the installed ports are
offline. The ports transmit an OLS (offline sequence) and they cannot
accept a login for connection from an attached device. Contrast with
online state.
OLS See offline sequence.
online state When the switch is in the online state, all of the unblocked ports are
allowed to login to the fabric and begin communicating. Devices can
connect to the switch if the port is not blocked and can communicate
with another attached device if both devices are in the same zone or if
the default zone is enabled. Contrast with offline state.
Open Systems
Management Server
An optional feature that can be enabled on the director or switch
through the Product manager application. When enabled, host
control and management of the director or switch are provided
through an open systems interconnection (OSI) device attached to a
director or switch port.
OpenTrunking OpenTrunking is a licensed optional feature that enables load balanc-
ing of traffic flows. OpenTrunking monitors the average speed of
data traffic through a flow. In the event of traffic congestion, or if traf-
fic on an ISL is disproportionate, a traffic flow is rerouted to a less
congested ISL. See also interswitch link.
operating state
(switch)
The operating states are described as follows:
Online - when the switch is set online, an attached device can log
in to the switch if the port is not blocked. Attached devices can
communicate with each other if they are configured in the same
zone.
Offline - when the switch is set offline, all ports are set offline.
The switch transmits the offline sequence (OLS) to attached
devices, and the devices cannot log in to the switch.
operating state (port) Can be beaconing, invalid attachment, link incidents, link resets,
LIPS, no light, not operational, online, offline, segmented E_Port, port
failure, or testing.