Lucent Technologies CBX 3500 - Table 10-6. Add PVC: Traffic Mgmt Tab Fields

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10-321/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM PVCs
About the PVC Tabs
Note – Due to hardware restrictions, you cannot dynamically modify (enable or
disable) the configured Frame Discard mode for ATM circuits with endpoints residing
on BIO2 modules. The NMS will not allow changes to the configured Frame Discard
mode for established BIO2 circuits. To modify the Frame Discard mode for a BIO2
circuit endpoint, delete the existing circuit and re-configure it using the new Frame
Discard mode.
Table 10-6. Add PVC: Traffic Mgmt Tab Fields
Field Action/Description
Forward (Endpoint 1 ->
Endpoint 2)
Frame Discard Status
These parameters are disabled by default. Select the check box to
turn on the physical port output buffer EPD/PPD function for this
particular PVC. When enabled, AAL5 traffic that is traversing the
PVC will be subject to EPD/PPD when physical port congestion is
experienced.
Reverse (Endpoint 2 ->
Endpoint 1)
Frame Discard Status
Cell Delay Variance
(Forward/Reverse)
This parameter is disabled by default. Selecting the check box will
enable this option and the PVC will not be routed over a path
whose total CDV exceeds the entered value. If you enable this
field and enter a value of 1000 µsec, the PVC will not be routed
over a path whose total CDV exceeds 1000 µsec. The total CDV
for a path is calculated by summing the CDV for each trunk in the
route. The valid range for this field is 1 – 16777214 µsec.
Note: If you enable this option, see “How PVC Routing
Thresholds Interact With LPort Routing Metrics” on page 10-21
for more information.
Cell Loss Ratio
(Forward/Reverse)
This parameter is disabled by default. Selecting the check box will
enable this option and the PVC will not be routed over a path if
the CLR of one of the trunks exceeds the entered value. If you
enable this field and enter a value of 10, the PVC will not be
routed over a path that has one or more trunks with a CLR worse
than 1.0 e
-10
. The CLR for a trunk is based on the Connection
Admission Control (CAC) objective for the host switches. The
valid range for this field is 1.0e
-1
to 1.0e
-12
. Enter a value between
1 and 12, or 255 (the default, any CLR acceptable).
Note: If you enable this option, see “How PVC Routing
Thresholds Interact With LPort Routing Metrics” on page 10-21
for more information.