Beta Draft Confidential
3-581/19/05 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring CBX or GX Logical Ports
Configuring Virtual ATM UNI/NNI Logical Ports
Configuring Virtual ATM UNI/NNI Logical Ports
You can create a virtual ATM UNI DCE/DTE or ATM NNI logical port on any
physical port on which you have already defined a direct UNI logical port.
To add a virtual ATM UNI/NNI logical port:
1. Complete the steps in “Working With ATM Logical Ports” on page 3-2. Make
sure you access a physical port on which you have already defined a UNI logical
port.
2. Choose Add to define a new logical port. The Add Logical Port dialog box
(Figure 3-5 on page 3-8) appears.
3. Select the LPort Type, either ATM UNI DCE, ATM UNI DTE, or ATM NNI.
4. Continue with the instructions beginning with “General Attributes” on page 3-16
to configure attributes for this virtual UNI/NNI logical port.
Note – The maximum number of virtual UNI logical ports per physical port can be
verified by using the show pram <card #> command at the switch console. Note that
one logical port is reserved for each physical port. For example, a 4-Port OC-3c card
supports a maximum of 120 lports, but since four (one per physical port) are reserved,
there are 116 configurable logical ports.
If you need to configure an ATM Virtual NNI logical port using PNNI 1.0 routing, see
Chapter 21.
Note – For additional information on configuring VP shaping on virtual ATM UNI
logical ports, see “ILMI/OAM Attributes” on page 3-34.
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