ATM QoS Policy Command Reference
706 Quality of Service Guide
service-category
Syntax service-category service-category
Context config>qos>atm-td-profile
Description This command is used to configure an ATM service category attribute of an ATM traffic descriptor
profile per ATM Forum Traffic Management Specification Version 4.1.
The router supports the ATM service categories on ATM-capable MDAs listed in Table 52.
Changing the service category of a profile will reset all traffic attributes to their defaults (see the traffic
command) and will cause reprogramming of the data path (with a small impact on user traffic) and a
reset of VC statistics for all VCs using this traffic descriptor profile.
Default ubr
shaping
Syntax [no] shaping
Context config>qos>atm-td-profile
Description This command enables cell level shaping when the ATM traffic descriptor profile is applied to an ATM
SAP queue. Shaping is only applied in the egress queue of the ATM SAP. Shaping cannot be enabled
on an ATM SAP with the UBR service category.
The no form of this command disables shaping.
Default The default is determined by the service category. Table 53 lists which defaults apply for shaping
depending on the service category.
Table 52: ATM Service Categories
Service Category Description
CBR Constant Bit Rate
rt-VBR real time Variable Bit Rate
nrt-VBR non-real time Variable Bit Rate
UBR Unspecified Bit Rate without Minimum Desired Cell Rate (defined by
specifying service category to be ubr, and MIR of 0)
UBR (with MIR) Unspecified Bit Rate with non-zero Minimum Desired Cell Rate
(defined by specifying service category to be ubr, and MIR > 0)
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