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Glossary – Dell PowerVault 56F (16P Fibre Channel Switch) User Manual

Page 41

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Glossary

1

The following list defines or identifies
technical terms, abbreviations, and acro-
nyms used in Dell™ user documents.


A fabric software facility that supports
multicast group management.


The FC Arbitrated Loop (FC-AL) is a stan-
dard defined on top of the FC-PH
standard. It defines the arbitration on a
loop where several FC nodes share a com-
mon medium.


In Class 2 service, the fabric and destina-
tion N_Port provide connectionless
service with notification of delivery or non-
delivery between the two N_Ports.


Class 3 service provides connectionless
service without notification of delivery be-
tween N_Ports. The transmission and
routing of Class 3 frames is the same as
for Class 2 frames.


A class of service used for interswitch
control traffic. It provides connectionless
service with notification of delivery or non-
delivery between two E_Ports.


An SNMP community is a relationship be-
tween an SNMP agent and a set of SNMP
managers that defines authentication, ac-
cess control, and proxy characteristics.


Credit, applied to a switch, is a numeric
value that represents the maximum num-
ber of receive buffers provided by an
F_Port or FL_Port to its attached N_Port
or NL_Port respectively such that the
N_Port or NL_Port may transmit frames
without overrunning the F_Port or
NL_Port.


The domain number uniquely identifies
the switch in a fabric. This switch domain
ID is normally automatically assigned by
the switch and may be any value between
0 and 31. This number may also be as-
signed manually.

!"# $!$"

#

E_D_TOV (Error-Detect Time-Out Value)
defines the time the switch waits for an
expected response before declaring an er-
ror condition. The error detect time out
value is adjustable in 1 ms increments
from two seconds up to 10 seconds.


A port is designated an E_Port when it is
used as an interswitch expansion port to
connect to the E_Port of another switch
to build a larger switch fabric.

%
The name applied to a network resulting
from the interconnection of switches and
devices by interswitch links (ISLs). A fab-
ric is an active, intelligent, nonshared
interconnect scheme for nodes.

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