Chapter 8 Provisioning Connections Using the AQueView
®
System
AAL2 Trunk Configuration
8-18
255-700-166
PacketStar
®
PSAX 6-Port DS1 IMA Module User Guide
, Issue 1
Release 7.0
Peak Rate (cps)
Default: 1
Use this field to set the maximum allowed cell transmission
rate (in cells per second), defining the shortest time period
allowed between cells.
When setting this value, take into account the line rate for
the module and the amount of bandwidth you are setting
up for each interface for the module.
Note:
Ensure that the peak cell rate for the connection is
correct. The Call Admission Control (CAC) function uses
this value to determine whether or not a call can be
completed to the subscriber line.
Sustained Rate
(cps)
Default: 1
Use this field to set the sustained cell rate with CLP (cell loss
priority) =0 (high priority) cells or the peak cell rate (PCR)
with CLP=0 cells. For VBR traffic, the value you set is the
SCR, or the average cell transmission rate (cells per second),
for the CLP=0 cells, as allowed by your traffic contract. For
CBR traffic, the value you set is the PCR, or the maximum
allowed transmission rate (cells per second), for the CLP=0
cells, as allowed by your traffic contract.
When setting this value, take into account the line rate for
the module and the amount of bandwidth you are allotting
for each interface on the module.
Max Burst Size
(cells)
Default: 1
Use this field to set the maximum burst size, the maximum
number of cells that can be received at the peak cell rate.
This allows a burst of cells to arrive at a rate higher than
that of the sustained cell rate. If the burst is larger than
anticipated, the additional cells are either tagged or
dropped.
When setting this value, take into account the line rate for
the module and the amount of bandwidth you are setting
up for each interface for the module.
Available
Bandwidth
(display only)
This field presents the total ingress and egress bandwidth
available for the trunk. This value is based on line rate, or
on what the user sets in the
Peak Rate
and
Sustained Rate
fields. Adding CE connections to the trunk decreases the
amount of available bandwidth, as indicated in this field.
Table 8-1. Field Descriptions for the AAL2 Trunk Config Entry Window
Field Name
Values
Description