17-3
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 17 Configuring Dynamic Subscriber Services
Applying Traffic Shaping Parameters Using RADIUS Profiles
Configuration Commands for DBS
This section describes the following commands used to configure dynamic bandwidth selection (DBS):
• dbs enable Command, page 17-3
• default dbs enable Command, page 17-4
dbs enable Command
To enable dynamic bandwidth selection QoS and apply the traffic shaping parameters retrieved from
RADIUS to the ATM virtual circuit (VC) class, AT M V C, AT M PVC r a n g e , o r AT M P V C w i t h i n a P V C
range, use the dbs enable command in the appropriate configuration mode. To disable dynamic
bandwidth selection, use the no form of the command. By default, DBS is disabled.
dbs enable
no dbs enable
dbs enable Command History
Configuration Modes
You can configure the dbs enable command in the following configuration modes:
• ATM VC class
• ATM V C
• ATM P V C r a ng e
• ATM PVC-in-range
Usage Guidelines for the dbs enable Command
When changing ATM QoS values dynamically on a VC, the connection might be disrupted for a short
duration (typically milliseconds).
The no dbs enable command configured in any configuration mode (for example, PVC) overrides the
dbs enable command configured in any configuration mode (for example, VC class). For more
information, see the
“Usage Guidelines for the default dbs enable Command” section on page 17-5.
Both the dbs enable and no dbs enable commands are nvgenned, that is, they are saved in the running
configuration and appear, when configured, in the output of the show running-config command. If you
use the default setting of DBS (no dbs enable) without explicitly configuring it, the no dbs enable
command does not appear in the show
running-config output.
Cisco IOS Release Description
Release 12.2(16)BX The dbs enable command was introduced on the PRE2.
Release 12.2(28)SB This command was integrated in Cisco IOS Release 12.2(28)SB for the
PRE2.