ATM QoS Traffic Descriptor Profiles
394
Quality of Service Guide
3HE 11014 AAAC TQZZA Edition: 01
8.4.2.1.2 ATM QoS Policy Commands
atm-td-profile
Syntax [no] atm-td-profile traffic-desc-profile-id [create]
Context config>qos
Description This command is used to configure an ATM traffic descriptor profile as per ATM Forum Traffic
Management Specification Version 4.1.
Traffic descriptor profiles are used to:
• define traffic management capabilities for ATM PVCCs
• calculate the total bandwidth consumed on a given port by all ATM PVCCs. The
bandwidth taken by a PVCC is equal to:
• PIR for CBR PVCCs
• SIR for rt-vbr and nrt-vbr PVCCs
• MIR for UBR PVCC
• define ATM-level scheduling
The default traffic descriptor is preconfigured and non-modifiable. It cannot be deleted. All
other traffic descriptor profiles must be explicitly created before use. The create keyword
must follow each new profile configuration.
Any changes made to the existing profile, using any of the sub-commands, are applied
immediately to all objects where this profile is applied (a small traffic interruption in data traffic
will occur during the data plane reprogramming with the newly modified profile).
When many changes are required on a profile, it is recommended that the profile be copied
to a work area profile ID. That work-in-progress profile can be modified until complete and
then written over the original profile-id. Use the config>qos>copy command to maintain
profiles in this manner.
The weight assigned to each non-shaped PVCC in the Deficit Round Robin Scheduler
depends on the service category and traffic rates (see the traffic command for more details).
The no form of the command deletes a given traffic profile. The profile to be deleted must not
be associated with any object (for example a SAP). If this condition is not met, the command
will return an error.
Default 1 — the default traffic descriptor (UBR, no traffic, no shaping)
Parameters traffic-desc-profile-id — the index identifier for a traffic descriptor profile
Values 1 to 1000
create — keyword used to create an ATM traffic descriptor profile
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