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9-18
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 9 Configuring Resource Management
Configuring Physical Interfaces
Note The atm output-queue command affects all connections, including those already established.
This command is not applicable for subinterface level configuration. For other restrictions, refer to the
ATM Switch Router Command Reference publication.
If the interface status is up, the force parameter is required before the request is completed. If the request
is forced, output on the interface is briefly disabled, cells on the output queue are discarded, and the
queue size is changed to the new limit. Any impact on existing connections by the implicit change in
guaranteed maximum CTD and peak-to-peak CDV is not considered before making the change.
Subsequent setup of switched virtual channel (SVC) connections will be affected.
Note The queue must be momentarily disabled to change the threshold.
Example
The following example shows how to configure the CBR ATM output queue maximum size to
30,000 cells:
Switch(config)# interface atm 3/0/0
Switch(config-if)# atm output-queue force cbr max-size 30000
Displaying the Output Queue Maximum Configuration (Catalyst 8510 MSR and LightStream 1010)
To display the output queue maximum size configuration, use the following user EXEC command:
Example
The following example displays the interface output queue maximum size configuration with FC-PCQ
installed:
Switch> show atm interface resource atm 3/0/0
Resource Management configuration:
Output queues:
Max sizes(explicit cfg): 30000 cbr, none vbr-rt, none vbr-nrt, none abr-ubr
Max sizes(installed): 30208 cbr, 256 vbr-rt, 4096 vbr-nrt, 12032 abr-ubr
Efci threshold: 25% cbr, 25% vbr-rt, 25% vbr-nrt, 25% abr, 25% ubr
Discard threshold: 87% cbr, 87% vbr-rt, 87% vbr-nrt, 87% abr, 87% ubr
Abr-relative-rate threshold: 25% abr
Pacing: disabled 0 Kbps rate configured, 0 Kbps rate installed
Service Categories supported: cbr,vbr-rt,vbr-nrt,abr,ubr
Link Distance: 0 kilometers
Controlled Link sharing:
Max aggregate guaranteed services: none RX, none TX
Max bandwidth: none cbr RX, none cbr TX, none vbr RX, none vbr TX,
none abr RX, none abr TX, none ubr RX, none ubr TX
Min bandwidth: none cbr RX, none cbr TX, none vbr RX, none vbr TX,
none abr RX, none abr TX, none ubr RX, none ubr TX
Best effort connection limit: disabled 0 max connections
Max traffic parameters by service (rate in Kbps, tolerance in cell-times):
Peak-cell-rate RX: none cbr, none vbr, none abr, none ubr
Peak-cell-rate TX: none cbr, none vbr, none abr, none ubr
Command Purpose
show atm interface resource atm
card/subcard/port
Displays the output queue maximum size
configuration.