Route Metrics - Cabletron Systems SmartCell 6A000 User Manual

ATM Routing
4.2.3

Route Metrics

Route metrics are assigned to routes using a metric tag (one of the input parameters for
specifies a particular pair of incoming and outgoing metrics contained within a list of metrics. Metrics are created using
the command. Each metric pair specifies a set of values that describe a route's Service Category, cell
add PNNIMetric
rates, bandwidth, and administrative weight. Locally, metric values determine the behavior of the link, while
network-wide, PNNI's Generic Call Admission Control (GCAC) assesses metrics when establishing calls.
In the following example, a metric pair is created (with metric tag of nine) that specifies CBR as the Service Category,
administrative weight of 200, Max Cell Rate of 1000 cells per second, and an Available Cell Rate of 750 cells per
second.
First, we create the outgoing member of the metric pair:
SmartCell ZX # add pnnimetrics
MetricsTag(1)
TrafficDirection(Outgoing)
ServiceCategory(UBR)
GCAC_CLP(2)
AdminWeight(5040)
MaxCellRate(-1)
AvailableCellRate(-1)
MaximumCellTransferDelay(-1)
CellDelayVariation(-1)
CellLossRatioForCLP=0(-1)
CellLossRatioForCLP=0+1(-1)
CellRateMargin(-1)
VarianceFactor(-1)
Next, we create the incoming member of the metric pair:
SmartCell ZX # add pnnimetrics
MetricsTag(1)
TrafficDirection(Outgoing)
ServiceCategory(UBR)
GCAC_CLP(2)
AdminWeight(5040)
MaxCellRate(-1)
AvailableCellRate(-1)
MaximumCellTransferDelay(-1)
CellDelayVariation(-1)
CellLossRatioForCLP=0(-1)
CellLossRatioForCLP=0+1(-1)
CellRateMargin(-1)
VarianceFactor(-1)
SmartCell ZX #
4-6 SmartCell 6A000 User Guide
: 9
: < 1st pair member, we accept the default
: cbr
:
: 200
: 1000
: 750
:
:
:
:
:
:
: 9
< 2nd pair member, we set as incoming
: incoming
: cbr
:
: 200
: 1000
: 750
:
:
:
:
:
:
Switch Administration
). The metric tag
add ATMRoute