Cabletron Systems 9032578-05 manual Creating a Service Class Definition

Service Class Definition

Creating a Service Class Definition

To create a service class definition, enter the following command in Configure mode:

Creates a service class definition.

atm define service <string> [srv-cat cbr ubr rt- vbr nrt-vbr] [pcr] [pcr-kbits] [scr] [scr-kbits] [mbs] [encap routed-llc routed-vcmux] [oam on off]

The following is a description of the parameters used to create a service class definition:

service <string> Specifies a name for the service class definition. The maximum length is 32 characters.

srv-cat	Defines the service category for the service class definition:
	cbr	Constant Bit Rate provides a guaranteed constant bandwidth
		specified by the Peak Cell Rate (PCR). This service category requires
		only the PCR value. The Sustainable Cell Rate (SCR) and Maximum
		Burst Size (MBS) values are ignored. This service category is intended
		for applications that require constant cell rate guarantees such as
		uncompressed voice or video transmission.
	ubr	Unspecified Bit Rate is strictly best effort and runs at the available
		bandwidth. Users may limit the bandwidth by specifying a PCR
		value. The SCR and MBS are ignored. This service class is intended
		for applications that do not require specific traffic guarantees. UBR is
		the default.
	rt-vbr	Real-Time Variable Bit Rate provides a guaranteed constant
		bandwidth (specified by the SCR), but also provides for peak
		bandwidth requirements (specified by the PCR). This service
		category requires the PCR, SCR, and MBS options and is intended for
		applications that can accommodate bursty real-time traffic such as
		compressed voice or video.
	nrt-vbrNon Real-Time Variable Bit Rate provides a guaranteed constant
		bandwidth (specified by the SCR), but also provides for peak
		bandwidth requirements (specified by the PCR). This service
		category requires the PCR, SCR, and MBS options and is intended for
		applications that can accommodate bursty traffic with no need for
		real-time guarantees.
pcr	Specifies the Peak Cell Rate, which defines the maximum cell transmission
	rate. The default is 176603 cells/sec. This parameter is valid for CBR, rtVBR,
	and nrtVBR service categories. This parameter is optional for UBR.

pcr-kbitsSpecifies the Peak Cell Rate, which defines the maximum cell transmission rate, expressed in kbits/sec. The default is 149759 kbits/sec (176603

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