Beta Draft Confidential
Configuring CBX or GX Logical Ports
QoS Attributes
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000 1/19/053-55
Oversubscription (Optional) Specify the Oversubscription Factor
percentage for each class of service (except CBR, which
is set to 100% and cannot be modified). This value must
be between 100% and 10000%.
If you leave these values set to 100%, Lucent’s Call
Master CAC algorithm ensures that the switch packs
circuits on a port without experiencing data loss or
losing QoS. (UBR circuits do not use the CAC
algorithm.)
After monitoring your network, if users of a particular
service class are reserving more bandwidth than they are
actually using, you can adjust the oversubscription
values to suit your needs. By doing so, however, you
may adversely impact the QoS for this and lower
priority service classes.
Changing the value of the Oversubscription percentage
does not admin down the logical port.
Table 3-9. Add Logical Port: QoS Tab Fields (Continued)
Field Action/Description
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