QoS ATM Traffic Descriptor Profiles
Quality of Service Guide 707
traffic
Syntax traffic [sir sir-val [pir pir-val] [mir mir-val] [mbs mbs-val] [cdvt cdvt-val]
no traffic
Context config>qos>atm-td-profile
Description This command is used to configure traffic attributes of an ATM traffic profile as per ATM Forum
Traffic Management Specification Version 4.1.
The traffic parameters of a traffic descriptor that are configurable depends on the service category of
this traffic descriptor profile (see the service-category command).
Table 54 defines which traffic descriptor parameters are applicable for what service category and what
are configuration rules between the parameters. Y indicates the parameter can be configured for a
given service category and will be defaulted if not provided, an N/A indicates the parameter cannot be
configured for a given service category (an error will be returned). If an applicable parameter is not
specified, the current value will be preserved.
Table 53: Default Shaping Values
Applicable Service
Category
Default Shaping
Value
Comments
UBR disabled Shaping cannot be enabled
CBR enabled Shaping cannot be disabled
when the profile is applied to
ATM SAP on ATM MDA
rt-VBR enabled Shaping cannot be disabled
when applied to ATM SAP
on ATM MDA
nrt-VBR enabled
Table 54: Traffic Descriptor Parameter Support by Service Category
Service Category SIR PIR MBS MIR CDVT
CBR N/A Y N/A N/A Y
rt-VBR Y Y (must be
>=SIR)
YN/AY
Nrt-VBR Y Y (must be
>=SIR)
YN/AY
UBR N/A Y N/A N/A N/A
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