Beta Draft Confidential
3-461/19/05 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
Table 3-7. Add Logical Port: VPI Range Tab Fields
Field Action/Description
Opt Trunk VPI
(OPTimum cell trunk
logical port endpoints
on CBX 3500/
CBX 500 switches
only)
Specify the VPI value for the default VCC, which is used for
network management and virtual circuit control on the OPTimum
trunk.
The Opt Trunk VPI value:
• Must be outside the VPI value ranges you configure for transit
MPT LSPs, transit point-to-point LSP connections, and virtual
UNIs.
•Must not conflict with the MPT LSP VPI value.
This is the VPI used for all circuits routed over this OPTimum
trunk. Entering a value of zero (0) enables 4096 circuits to be
routed over the trunk. The range of valid VPI values depends
upon the number of valid VPI bits you set for the ATM UNI
feeder port.
VPC VPI Start
(OPTimum cell trunk
logical port endpoints
on CBX 3500/
CBX 500 and GX 550
switches only)
Specify the first VPC VPI value in the range of VPI values for
virtual UNI logical ports that use the OPTimum trunk. For
example, if the desired range is 155 to 255, you would specify
155 in this field. The default is zero (0).
The range that you specify:
•Must not overlap the ranges that you specify for transit
MPT LSPs, and transit point-to-point LSP connections.
•Must not conflict with the Opt Trunk VPI value.
For more information, see “Configuring the OPTimum Trunk for
VPCs” on page 2-9.
VPC VPI Stop
(OPTimum cell trunk
logical port endpoints
on CBX 3500/
CBX 500 and GX 550
switches only)
Specify the last VPC VPI value in the range of VPI values for
virtual UNI logical ports that use the OPTimum trunk. For
example, if the desired range is 155 to 255, you would specify
255 in this field.
The range that you specify:
•Must not overlap the ranges that you specify for transit
MPT LSPs and transit point-to-point LSP connections.
•Must not conflict with the Opt Trunk VPI value and the
MPT LSP VPI value.
For more information, see “Configuring the OPTimum Trunk for
VPCs” on page 2-9.
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