Specifications

Configuration Views Switch Resource Management Configuration View
Device Management Page 68 Cisco LightStream 1010
Peak to Peak CDV
The default peak-to-peak Cell Delay Variation
(CDV) for the service category. It applies only to
cbr and vbr-rt service categories. Specifying a
value of 16777215 signifies that this parameter
should not be checked during connection setup.
The units are measured in microseconds.
QOS CLR
The default QOS Cell Loss Ratio (CLR) for the
service category Specifying a value of 0 signifies
that this parameter should not be checked during
connection setup. The units of this object are
negative powers of ten.
Queued Cells
This table contains Resource Management
information on the cells in the output queues of a
shared-memory switch. Rows are indexed by
priority and cross-referenced by Cell Limit and
Cell Count.
Priority
The cell priority. Possible values are p1, p2, p3,
and p4.
Cell Limit
Configured limit on the number of cells on all
output queues of the switch at any time of a
particular priority.
Cell Count
The number of all cells on all output queues of
the switch at any time of a particular priority. In
addition to the tables, this view also provides the
following information.
Over Subscription Factor
The Over Subscription Factor (OSF) is used on
switch startup/OIR to determine the maximum
sizes of VBR-NRT and ABR/UBR queues. In
general, the larger the value of the OSF specified,
the larger the queues are made at startup.
SCR Margin Factor
The Sustained Cell Rate Margin Factor (SCRMF)
is used in Connection Admission Control (CAC) of
VBR connections to vary the weight given to the
difference between Sustained Cell Rate (SCR) and
Peak Cell Rate (PCR) specified in the traffic
contract.
ABR Congestion Notify
The ABR congestion notification object
determines the type of congestion notification
used on ABR connections in the switch. This
notification can be done either via relative-rate or
Explicit Forward Congestion Indication marking
in ATM cells or both. Possible values are: Relative
Rate, EFCI, and EFCI and Rel Rate.