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Beta Draft Confidential
About ATM Logical Ports
About VP Shaping on the GX 550
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
1/19/05
2-21
The Traffic Engineering tab in the Add/Modify Card dialog box displays the VP
shaping buffer thresholds for various QoS. The actual available VP shaping UBR
buffer thresholds (per port for an IOM1) will be ([clp 0+1 threshold] - 2000) and
([epd/clp 1 discard] - 1000) and not what is displayed. The implicit buffers used for
the shaped tunnel VPs are 2000/1000. For more information on setting card attributes,
see the Switch Module Configuration Guide for CBX 3500, CBX 500, GX 550, and
B-STDX 9000.
About VP Shaping on the GX 550
When you configure OPTimum trunk, virtual UNI, or virtual NNI logical ports on phy
modules attached to GX 550 Multiservice WAN BIO2 or BIO-C modules, you can
enable VP shaping to provide egress traffic shaping. The VP shaping feature enables
multiple VPs that are destined to multiple endpoints to be shaped from a single
physical port at the egress. Traffic is shaped based on a user-defined shaping rate that
is defined on the Add Logical Port dialog box during logical port configuration.
VP shaping on the GX 550 BIO2 or BIO-C module:
•
Enables GX 550 traffic sent to your network to comply with your purchased traffic
contract.
•
Enables GX 550 traffic to traverse over other networks that cannot handle bursts
in cell traffic.
•
Ensures that the maximum rate of the OPTimum trunk traffic does not exceed the
specific cells per second (CPS).
When you define Administrative attributes for an OPTimum trunk, virtual UNI, or
virtual NNI logical port on the BIO2 or BIO-C module, you can enable VP shaping by
setting the VP Shaping and VP Shaping Rate attributes. For more information, see the
descriptions of these attributes in
.
Note – Lucent recommends that you do not mix shaped and non-shaped logical ports
on a physical port.
Summary of Contents for CBX 3500
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