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Beta Draft Confidential
4-12
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM Logical Ports on Frame-based Modules
About ATM Logical Port Functions
ILMI/OAM
Specifies the ILMI and OAM
parameters.
ILMI – Management Information
Base (MIB) that provides status
and communication information
to ATM UNI devices and
provides a port keep-alive
protocol.
OAM – Sets the alarm functions
that generate Operations,
Administration, and Maintenance
(OAM) alarms.
Note: The B-STDX 9000 does not
support ATM SVC signaling
functions.
UNI DCE/DTE
ATM CS
and IWU
cards
VPI Range
Sets the Optimum Trunk VPI.
ATM OPTimum
Cell Trunk
ATM-based
cards (see
Congestion
Control
Sets the threshold parameters
(mild, severe, and absolute) and
closed loop congestion controls
that determine how the switch
responds to congestion in the
network.
•
UNI
DCE/DTE
•
Interworking
for FR NNI
Frame-based
cards (see
Link
Management
Sets the DCE and DTE polling
timer and interval values.
Interworking for
FR NNI
All
Priority Frame
Specifies the service class type
that the logical port can support.
The valid values and their
corresponding definitions are
mono-class and multi-class.
When you configure the port for
mono-class operation, it only
supports VFR-NRT mode; when
configured for multi-class
operation, it can support constant
frame rate (CFR), VFR-RT,
VFR-NRT, and unspecified frame
rate (UFR) services.
All
Frame-based
cards (see
Table 4-4.
Add Logical Port Tabs (Continued)
Tab Name
Description
Logical Port
Type
Card Types
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