EMC Connectrix B Series Hardware Reference Manual page 123

Nx_Port
OFC
OLS
OLTP
ON
OPN
Ordered Set
Originator
Out-of-Band
Oversubscription
OX_ID
A node port that can operate as either an N_Port or NL_Port.
O
Open fiber control. A method used to enable and disable laser
signaling for higher-intensity laser transceivers.
Primitive sequence offline.
Online transaction processing.
Offline notification. Refers to an ELS field that appears in
command output.
portlogdump
Open primitive signal. Applies only to an arbitrated loop; sent by an
L_Port that has won the arbitration process to open communication
with one or more ports on the loop.
A transmission word that uses 8b/10b mapping and begins with the
K28.5 character. Ordered sets occur outside of frames, and include the
following items:
• Frame delimiters mark frame boundaries and describe frame
contents.
• Primitive signals indicate events.
• Primitive sequences indicate or initiate port states.
Ordered sets are used to differentiate Fibre Channel control
information from data frames and to manage the transport of frames.
The Nx_Port that originated an exchange.
Transmission of management protocol outside of the Fibre Channel
network, usually over Ethernet.
A situation in which more nodes could potentially contend for a
resource than the resource could simultaneously support (typically
an ISL). Oversubscription could be a desirable attribute in fabric
topology, as long as it does not produce unacceptable levels of
congestion.
Originator ID. Refers to the exchange ID assigned by the originator
port.
Connectrix B Series XPath OS AP-7420B Hardware Reference Manual
Glossary
g-25