Beta Draft Confidential
3-221/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring CBX or GX Logical Ports
Setting Logical Port Attributes
VP Shaping Rate
(cells per second)
If you enable VP shaping, enter a value between 100 and the
maximum logical port bandwidth in cells per second. See Table 2-5
on page 2-17 for these values.
CBX 3500 and CBX 500 – Supported on virtual UNI and OPTimum
Trunk logical ports on I/O modules with FCP enabled.
GX 550 – Supported on virtual UNI, Virtual NNI, and OPTimum
Trunk logical ports on BIO2 and BIO-C modules.
Notes: Due to hardware restrictions, you cannot dynamically
modify (enable or disable) the configured VP Shaping mode for
BIO2 or BIO-C virtual UNI logical ports on which circuits have
been provisioned. The NMS will not allow changes to the VP
Shaping field if circuits are provisioned on the logical port.
To modify the VP Shaping mode for virtual GX 550 UNI logical
ports on which circuits are provisioned, see “Modifying the VP
Shaping Mode on GX 550 Virtual UNI Logical Ports” on
page 3-27.
When you enable VP shaping for a logical port on the GX 550
BIO2 module, the VP Shaping Rate field is read-only. The
VP shaping rate is automatically calculated based on the
Bandwidth entered in the Bandwidth (Kbps) field, described earlier
in this table.
VP Shaping is not available when the BIO-C channelization mode
is set to 48 x STS-1. You cannot enable VP Shaping for virtual
UNI/NNI or OPTimum Trunk logical ports configured on STS-1
subports.
Shaping Type Select either VC or VP for shaping:
VC – Using VC Shaping, the shaper pick list is grayed out and the
switch uses a method of dynamically selecting a shaper for each
circuit routed over the cell trunk. To use the default VC shaping
method, at least one VC shaper must exist in the shaper range 1 – 5,
at least one in the range 6 – 10, and at least one in the range 11 – 15.
VP – To enable VP shaping, select Shaping Type VP, then select a
Shaper ID.
CBX 500 and CBX 3500 – Supported on virtual UNI and OPTimum
Trunk logical ports on I/O modules with FCP enabled.
GX 550 – Supported on virtual UNI, Virtual NNI, and OPTimum
Trunk logical ports on BIO2 modules.
Table 3-3. Add Logical Port: Administrative Tab Fields (Continued)
Field Action/Description
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