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4-40 ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM Logical Ports on Frame-based Modules
Defining ATM OPTimum Frame Trunk Logical Ports
Defining ATM OPTimum Frame Trunk Logical Ports
To implement the ATM OPTimum frame trunk, first configure a UNI DTE feeder
logical port on the same physical port. To configure an ATM OPTimum frame trunk,
perform the following steps:
To configure an ATM OPTimum frame trunk logical port:
1. Complete the General tab fields in the Add Logical Port dialog box as described in
“Defining ATM UNI DCE/DTE Logical Ports” on page 4-15. Note that Table 4-6
and Table 4-7 list all possible general and administrative attributes for an ATM
logical port. The attributes vary depending on the type of IOM.
2. If you are configuring an ATM DS3/E3 UNI module, select a traffic shaper ID by
clicking on Select. Figure 4-8 on page 4-38 displays the Select Traffic Shaper
dialog box.
Choose a value from 1 through 16 to specify the Shaper ID. This list provides both
VP and VC shaping attributes. Make sure you assign only one trunk logical port
per shaper ID. Assigning more than one trunk logical port to a given shaper ID
decreases circuit performance. Table 4-14 on page 4-38 describes the fields in the
Select Traffic Shaper dialog box. For more information, see “Setting the Number
of Valid Bits in VPI/VCI for the B-STDX 9000” on page 4-5.
Then, continue with the instructions in Table 4-16 on page 4-41.
3. See Table 4-16 to continue this configuration.
Step 1. Configure the physical port you want to use for the ATM OPTimum frame trunk
(see the Switch Module Configuration Guide for CBX 3500, CBX 500, GX 550,
and B-STDX 9000).
Step 2. Configure a UNI DTE feeder logical port for the ATM OPTimum frame trunk on
this physical port (page 4-15). Assign this logical port a minimum amount of
bandwidth.
Step 3. Configure the ATM OPTimum frame trunk logical port on the same physical
port. Assign the remaining bandwidth to this logical port.
Step 4. Configure the trunk (see Chapter 7, “Configuring Trunks”).
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