ADC Release 3.1 - Manual (Page 103)

1152700 • Issue 1 • February 2001 • Section 2 Operations and Maintenance
Page 2-83
© 2000, ADC Telecommunications, Inc.
DLP-708
Page 3 of 7
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Study Indication - select using the left mouse button. This indicates the usage
information is to be generated for study purposes.
•
Remote Interface Type - select UNI or B-ICI using the left mouse button. This
selection describes the type of remote interface.
11. When all of these parameters are filled in for both the originating and the destination NE,
select Next , except for CES ATM VC connections in which the user selects the Apply
button to complete the connection.
12. The next window appears for ATM connections and prompts the user for more information.
Refer to Figure 708-6. The Connection Name and Type are displayed at the top of the
window. The Traffic Contract Type needs to be selected dependent upon the type of
connection selected in the previous windows. For ATM-VP connections, classes selectable
are CBR (Constant Bit Rate), UBR (Unspecified Bit Rate), UBR.1, RT-VBR 1, 2, or3 (Real
Time Variable Bit Rate). Or NRT-VBR 1, 2, or 3 (Non-Real Time Variable Bit Rate). For
ATM-VC connections, NRT-VBR 1, 2, or 3 , or UBR , UBR.1, or CBR are selectable.
Note: The Cellworx STN system can support any ATM Forum UNI 3.1 based traffic
contracts. UNI 3.1 uses QoS Classes 0 through 4 to specify the service requirements and
these can be mapped to Cellworx STN Classes I, II, and Unspecified. The Cellworx STN
also supports ATMF UNI 4.0 based traffic contracts. UNI 4.0 uses parameterized QoS,
which can be mapped to STN classes I, II, or Unspecified based on the QoS parameter
values. There are five traffic contract types (i.e. conformance definitions) for different
service categories.
Table 708-1 shows the relationship between the traffic contract types
and the QoS class assigned to it in the Cellworx STN.
Table 708-1. Traffic Policing Attributes for Various Service Categories
TRAFFIC
CONTRACT
TYPES
PCR SCR MBS TAGGING
OPTION
ACTIVE
QoS
CBR.1 0 + 1 Not specified Not specified Not applicable Class I
VBR.1 0 + 1 0 + 1 0 + 1 Not applicable Class II
VBR.2 0 + 1 0 0 NO Class II
VBR.3 0 + 1 0 0 YES Class II
UBR Not specified Not specified Not specified Not applicable Unspecified
UBR.1 0+1 Not specified Not applicable Not applicable Unspecified
13. Next select the Ingress Traffic Contract using the left mouse button. If a traffic contract
is not available for the connection, double click on NEW to create a traffic contract and go
to
DLP-709 . The traffic contract specifies the parameters that determine if the connection is
actually a CBR, RT or NRT-VBR.1, VBR.2, or VBR.3, UBR, or UBR.1 connection.
14. Once traffic contract is created, it will appear in the Ingress Traffic Contract window.
Select the new traffic contract via a single click using the left mouse button.