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This chapter describes how to set ATM virtual channels for a Direct Connect configuration.
This chapter includes the following sections:
To configure ATM channel mapping between the CPE and the ATM network through the Cisco 6100/6130, you need to configure the ATM virtual channels. This section includes some general guidelines to consider before you set up ATM virtual channels for your subscribers, illustrations and descriptions of the dialog boxes that you use for these tasks, and instructions for setting the virtual path identifier (VPI) and virtual channel identifier (VCI) addresses for your subscribers.
Consider the following guidelines before you configure ATM virtual channels:
Columns on the top of the Service Provisioning dialog box display the settings that you set in the Permanent Virtual Connection group box, which is on the lower half of the dialog box. The columns are described in Table 3-1. The fields on the Permanent Virtual Connection group box are described in Table 3-2.
| Column | Description | ||
|---|---|---|---|
Subscriber ID | Displays at the top of the dialog box, the subscriber that is associated with the PVCs. This is a read-only field. | ||
Displays the VPIs and VCIs for current subscribers. To delete a subscriber ID in this scroll-down PVC connection list, highlight that subscriber ID and click Delete Now.
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Displays the current settings of the network VPI and VCI for a specific subscriber.
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Priority | A number 1 represents the lowest delay and highest line availability. The Queue Priority can have a value of 1 through 3:
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| Field | Description | ||
|---|---|---|---|
Subscriber VPI | Displays the Subscriber VPI, which is always 1. This field is read-only. | ||
Subscriber VCI | When the subscriber is locked, you can change the VCI value. Click Add Now to create a new PVC for the subscriber and add it to the PVC connection list. Adding subscribers to the PVC connection list is subject to PVC configuration rules. The available numbers are 0 to 3. Once you have used a number, it appears in the columns on the top of the dialog box, and no longer appears in this list. | ||
Network VPI/VCI | When the subscriber is locked, you can edit the PVC VPI/VCI values. Click Add Now to create a new PVC for the subscriber and add it to the PVC connection list. Adding subscribers to the PVC connections list is subject to PVC configuration rules. | ||
Latency (STU-C Module Service Provisioning only) | The default is set to Interleaved delay, the setting that Cisco recommends. Configure the Latency setting per port, not per subscriber. | ||
Queue Priority | Use this field to set the queue priority to Voice as follows:
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The following sections provide instructions for setting VPI/VCI addresses for subscribers:
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Note ViewRunner supports a virtual connection for quad-port STU-C modules that is consistent with that provided for CAP ATU-C modules. Except for the training rates, subscriber provisioning for the ATM virtual channel for quad-port STU-C modules is similar to that for the dual-port CAP ATU-C module. |
You add new VPI/VCI addresses on the Service Provisioning dialog box, which is described in the preceding section. The following sections include guidelines and steps for adding new VPI/VCI addresses.
The Permanent Virtual Connection group box on the Service Provisioning dialog box includes an area for setting Subscriber PVCs and an area for setting Network PVCs. Consider the following guidelines:
Complete the following steps to add new VPI/VCI addresses for subscribers. Refer to the field descriptions in Table 3-1.
The Service Provisioning dialog box for this subscriber opens.
Step 2 Click Service Provisioning on the Subscriber Properties dialog box.
The Service Provisioning dialog box opens (Figure 3-2).
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Note The columns on the top of the dialog box are dimmed until you add a PVC. |
Step 3 Confirm that the subscriber's Administrative state is Locked.
Step 4 Set the VCI/VPI information in the available fields on the Permanent Virtual Connection group box as follows:
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Note Use the scroll bar to navigate across the columns at the top of this dialog box. |
Step 5 Click Add Now.
ViewRunner immediately creates the subscriber PVC.
Step 6 Repeat Step 3 through Step 5 for each subscriber VCI/VPI address that you want to add.
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Note Each time you choose a number in the Subscriber VCI field, ViewRunner removes that number from the list. |
Step 7 Click Close when you are finished adding new addresses.
If you want to change the port entries and reuse an address for a new subscriber, you must first delete the subscriber that is assigned to that address. The system does not allow an identifier to be used for more than one subscriber. To delete subscriber PVCs, complete the following steps:
Step 2 Click Service Provisioning on the Subscriber Properties dialog box.
The Subscriber Properties dialog box opens.
Step 3 Highlight the subscriber VPI that you want to delete from the Subscriber VPI column.
Step 4 Click Delete Now.
Step 5 Click Yes in the Confirmation dialog box.
Step 6 Repeat Step 3 through Step 5 for each PVC that you want to delete.
Step 7 Click Close when you are finished deleting subscribers.
Consider the following guidelines before you modify subscribers' VPI and VCI addresses:
To view or modify the VPI/VCI addresses, complete the following steps:
The Subscriber PVCs dialog box, shown in Figure 3-3, opens.
This dialog box displays the following columns for each subscriber:
Step 2 Click a hyperlink subscriber ID (blue, underlined text) to open a specific Subscriber Properties dialog box.
Step 3 Change the Administrative state to Locked as follows:
a. Click Locked next to Administrative state.
b. Click Apply.
c. Click Yes in the message box.
Step 4 Click Service Provisioning to open the Service Provisioning dialog box.
Step 5 If you want to modify any VCI/VPI addresses, you must first delete them and then add them again. See the "Adding New VPI/VCI Addresses" section and the "Deleting VPI/VCI Addresses" section.
Step 6 Click Close when you are finished viewing subscriber PVCs.
As a precaution, you should always verify port and module settings after you have provisioned new subscribers or modified the settings for existing subscribers. See "Unlocking Entities and Verifying Provisioned Subscribers," for instructions on verifying the settings that you have provisioned for a subscriber.
Posted: Mon Feb 14 16:43:15 PST 2000
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