Dell PowerVault 50F (Fibre Channel Switch) - Manual (Page 47)

2 Dell PowerVault 56F 16-Port Fibre Channel Switch User’s Guide
DELL CONFIDENTIAL - Preliminary 4/11/00
FILE LOCATION: S:\SYSTEMS\Labrador\Ug\89TMRgl0.fm
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The F_Port is the fabric access port used
to connect an N_Port.
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Fibre-Channel shortest path first.
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Gigabit interface converter. A removable
serial transceiver module designed to pro-
vide gigabaud capability for Fibre Channel
and other protocols that use the same
physical layer.
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A port is designated as a G_Port when it
has not assumed a specific function. A
G_Port is a generic switch port that can
operate either as an E_Port or an F_Port.
A port is defined as a G_Port, for example,
when it is not connected or has not yet
assumed a specific function in the fabric.
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ISL is a fiber link between two switches.
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A loop is a configuration of devices (for
example, JBODs) connected to the fabric
via an FL_Port interface card.
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Multicast is used when multiple copies of
data are to be sent to designated multiple
destinations.
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The N_Port is the designation of an equip-
ment port connected to the fabric.
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The NL_Port is the designation of an
equipment port connected to the fabric in
a loop configuration via an FL_Port.
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The POST is a series of self-tests which
run each time the unit is booted or reset.
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R_A_TOV (Resource Allocation Time Out
Value) used to time out operations that
depend on the maximum possible time
that a frame could be delayed in a fabric
and still be delivered. The value of
R_A_TOV is adjustable in 1-microsecond
increments over a range from 10 to
120 seconds.
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ISL is online but not operational between
switches because of overlapping domain
ID or nonidentical parameters such as
E_O_TOVs.
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SNMP is a TCP/IP protocol that generally
uses the User Datagram Protocol (UDP)
to exchange messages between a man-
agement information base and a
management client residing on a network.
Because SNMP does not rely on the un-
derlying communication protocols, it can
be made available over other protocols,
such as UDP/IP.
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The original standard for SNMP is now re-
ferred to as SNMPv1.
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A trap is a mechanism for SNMP agents
to notify the SNMP management station
of significant events.
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Unicast routing provides one or more
optimal path(s) between any of two
switches that make up the fabric. This is
for a single copy of the data to be sent to
designated destinations.
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A port is designated as a U_Port when it
has not assumed a specific function. A
U_Port is a generic port that can operate
either as an E_Port, an F_Port, or an
FL_Port. A port is defined as a U_Port, for
example, when it is not connected or has
not yet assumed a specific function in the
fabric.
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A WWN uniquely identifies a switch on
local and global networks.