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10-861/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM PVCs
Configuring PMP Circuits
5. Choose Apply to configure the PMP PVC leaf parameters.
6. To define additional PMP circuits and endpoints, repeat step 1 through step 5. 
When you are done adding PMP circuits and endpoints, choose OK to return to 
the network map.
Restrictions on Multiple Leafs on the Same Physical Port
Logical multicasting is not supported on the GX 550 switch. In this situation, you 
should not configure more than one PMP leaf on a physical port. Do not configure 
more than one circuit leaf for a given root on the same physical port. If you configure 
more than one OPTimum trunk on a physical port, only one OPTimum trunk can be 
used for routing one of the leafs for a given root.
Ingress Cell Counting, Egress 
Cell Counting 
Select the check box for Ingress and Egress Cell 
Counting to include cell counts from this circuit 
in PVC usage data collection, when PVC 
Accounting is set to Enabled at the switch and 
port levels. If you select either or both cell 
counting fields, the resulting accounting records 
contain both time-based and usage-based 
measurements.
If you clear the check box for Ingress or Egress 
Cell Counting, cell counts from this circuit are 
not included in PVC usage data collection. If 
you do not select either cell counting field, the 
resulting usage data records contain only 
time-based measurements.
PVC Accounting Enable — PVC usage data is collected on the 
PVC, if PVC Accounting is set to Enabled at 
the switch level.
If PVC Accounting is set to Disabled at the 
switch level, setting this field to Enabled has no 
effect (accounting will still be inhibited on the 
PVC).
Disable — PVC usage data is not collected on 
the PVC, even if PVC Accounting is set to 
Enabled at the switch level.
Study — Functions the same as the Enabled 
setting, except that the resulting records are 
marked as “study” to differentiate them from 
normal accounting records. This feature enables 
you to collect information for research.
Table 10-18. Add Point-to-Multipoint PVC Leaf: Accounting 
Tab Fields (Continued)
Field Action/Description