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2. Web Server Interface
Figure 2-32. CES Service Details Screen
From this screen, you can access and change the parameters listed below. The
new parameters are saved when you click on Submit and then perform a Save
and Restart.
VPI
Determines VPI used for this CES Internet Working Function (IWF). The default is
0.
VCI
Determines VCI used for this CES IWF. The default is 33.
Service Type
Determines if T1/E1 service is structured (Nx64 kbps with or without signaling) or
unstructured (2.048 or 1.544 Mbps raw data stream). You must configure the
Service Type to correspond with the desired CBR port framing and channel rate in
accordance with the Format Relationships Table
(Table
2-1) on page 2-38.
Timing
Determines the CES services clocking mode, which maps to the transmit clock
source of the CBR interface and Serial interface (if configured for a CES service).
When Adaptive timing is selected, the receive AAL1 payload buffer is monitored
for predetermined threshold levels to control the frequency of the interface clocks.
When the buffer depth exceeds the predetermined upper threshold, the interface
clock frequency is increased to cause the buffer to drain more quickly. If the buffer
depth falls below the predetermined lower buffer threshold, the interface clock
frequency is decreased to cause the buffer to drain less quickly. Both lower and
2-35
8300-A2-GB20-00
April 2003
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