ATM Option System Reference - Comtech EF Data

5.3.3 Service category
Values: SDM-9360, SDM-9380, 0 - 65534
SDM-9585:
SDM-9230: 0 - 1023
Default: 0
SE/PVC Configuration Parameters
Console SNMP Text-based Config
Service category atmpvcServiceCategory [atmpvc#] ServiceCategory
On the SDM-9230 only:
Set this parameter to the service category required by the ATM switch. To select the
correct category for your PVC connection you can refer to the ATM switch configuration,
or seek the advice of your ATM service provider.
Each service category is based on a combination of cell rate pacing, Quality of Service
(QoS) and traffic priority characteristics:
• CBR: Constant Bit Rate. Refer to “Constant Bit Rate (CBR)” on page 1-11 for a
description of the characteristics of this service category
• UBR: Unspecified Bit Rate. Refer to “Unspecified Bit Rate (UBR)” on page 1-12
• RT-VBR: Real-Time Variable Bit Rate. Refer to “Real-time Variable Bit Rate
(RT-VBR)” on page 1-12
• NRT-VBR: Non-Real-Time Variable Bit Rate. Refer to “Non-real-time Variable
Bit Rate (NRT-VBR)” on page 1-12.
The Service Categories are available for all PVC types except ATM-MULTIPLEX, in which
the NetPerformer unit is considered part of the ATM network side.
Each end of the connection can be configured differently as to Service category and the
various cell rates defined. Each PVC can also be configured differently, even on the same
NetPerformer unit.
NOTE: On the SDM-9360, SDM-9380 and SDM-9585:
• An AAL5 PVC is always set to UBR
• An AAL1 PVC is always set to CBR.
Values: CBR, RT-VBR, NRT-VBR, UBR
Default: UBR
Memotec Inc. 5-5