BinTec elmeg hybird 120, Справочное руководство

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Fig. 195:
WAN
->
ATM
->
Service Categories
->
New
The menu WAN->ATM->Service Categories->New consists of the following fields:
Fields in the Basic Parameters menu.
Field Description
Virtual Channel Con-
nection (VCC) Select the already configured ATM connection (displayed by the
combination of VPI and VCI) for which the service category is to
be defined.
ATM Service Category Select how the data traffic of the ATM connection is to be con-
trolled.
A priority is implicitly assigned when you select the ATM service
category: from CBR (highest priority) through VBR.1 /VBR.3 to
VBR (lowest priority).
Possible settings:
•
-.3= 9 9
(default value): No specif-
ic data rate is guaranteed for the connection. The Peak Cell
Rate (PCR) specifies the limit above which data is discarded.
This category is suitable for non-critical applications.
•
- 9 9
: (Constant Bit Rate) The con-
nection is assigned a guaranteed data rate determined by the
Peak Cell Rate (PCR). This category is suitable for critical
(real-time) applications that require a guaranteed data rate.
•
@$; 9 @* @9*
: A guaranteed data
rate is assigned to the connection - Sustained Cell Rate
(SCR). This may be exceeded by the volume configured in
Maximum Burst Size (MBS). Any additional ATM traffic is
discarded. The Peak Cell Rate (PCR) constitutes the maxim-
um possible data rate. This category is suitable for non-critical
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22 WAN
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