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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter23 Configuring the ATM Traffic-Shaping Carrier Module
Configuring Maximum Thresholds
Note Any changes to the traffic-shaping configuration take effect upon saving the configurations to NVRAM
and reloading the switch, or upon performing an OIR on the port adapter in subcard 0 of the ATM
TSCAM.
Example
The following example shows how to enable VBR traffic shapin g:
Switch# configure terminal
Switch(config)# interface atm 4/0/0
Switch(config-if)# atm traffic shaping enable vbr
Switch(config-if)# end
Switch# copy system:running-config nvram:startup-config
Configuring Maximum Thresholds
The ATM TSCAM supports maximum thresholds for traffic class and for VCs. This section describes
how to configure these thresholds.

Configuring Maximum Thresholds for Traffic Classes

To configure traffic class thresholds, perform the following steps, beginning in privileged EXEC mode:
Note Prior to changing the traffic class maximum threshold configuration, you must disable the interface using
the shutdown command. You do not have to disable the interface when configuring per-VC maximum
thresholds.
Command Purpose
Step1 Switch# show atm vc atm slot/subslot/port Verifies that the VCs on the interface are in a
down state.
Step2 Switch# configure terminal
Switch(config)#
Enters interface global configuration mode.
Step3 Switch(config)# interface atm slot/subslot/port
Switch(config-if)#
Enters interface configuration mode.
Step4 Switch(config-if)# shutdown Disables the interface.
Step5 Switch(config-if)# atm traffic shaping
thresholds class {best-effort | vbr} maximum
percent
Sets traffic-shaping thresholds on an interface.
Step6 Switch(config-if)# no shutdown Enables the interface.