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This chapter provides step-by-step instructions for provisioning a Direct Connect configuration of the Cisco 6100 Series system.
Service provisioning is the process of granting ADSL service to subscribers. In a Direct Connect installation, the POTS modules are wired directly to the ATU-C or STU-C modules, eliminating the need for line interface modules (LIMs), or the ATU-C or STU-C modules are wired directly to the main distribution frame (MDF). A prerequisite for service provisioning is that a management connection must exist for ViewRunner for HP OpenView to provision the Cisco 6100 Series system.
A Cisco 6100 Series system must therefore contain at least a multiplexer chassis (MC) and a system controller (SC) module. During the provisioning process, operator-entered information is sent immediately to the Cisco 6100 Series system via Simple Network Management Protocol (SNMP) set and get messages. If the management connection is not communicating properly, lost SNMP messages retry but eventually are dropped.
The three configurations for the Cisco 6100 Series system are
The general steps for provisioning the Cisco 6100 Series system for this configuration style follow:
Step 1 Associate the subscriber to an ATU-C or STU-C port.
Step 2 Define the CAP RADSL or DMT attributes on the Subscriber Properties dialog box.
Step 3 Assign subscriber VPI/VCI addresses.
Step 4 Unlock entities.
Step 5 View the Port Service Configuration dialog box to verify the proper configuration.
Each of these steps is covered in detail in the following sections. These steps can be executed only after all components have been successfully autodiscovered.
Service provisioning must adhere to a variety of configuration rules, which prevent errors when establishing ATM connections. ViewRunner for HP OpenView includes service provisioning logic to ensure valid combinations of configuration data.
Following is a list of virtual channel connection (VCC) configuration rules:
Figure 5-1 shows valid address ranges for each Cisco 6100 Series system.
Although the valid address space shown in Figure 5-1 indicates that up to 9600 VCCs can be supported, the number is constrained by several factors. First, as the software content increases with each new release, a greater percentage of existing system controller and NI RAM is consumed by resident application code.
For Release 2.x of the Cisco 6100 Series system, a maximum of 1600 VCCs within the valid address space is recommended. Software limits are not built in due to the temporary nature of this ceiling. See "Cisco 6100 Series System ATM Addressing Guidelines," for more information.
Subtending is a Cisco 6100 Series system feature that reduces the cost per subscriber by amortizing the expense of the network interface (NI) module and the edge-switch port connection over a large number of subscribers. Subtending is the service and aggregation of data from one or more downstream Cisco 6100 Series systems to a host Cisco 6100 Series system to further oversubscribe the NI module. Subtending enables the service provider to amortize an expensive network component (the broadband interface and terminating ATM edge-switch port) over a large number of tariffed subscribers.
Figure 5-2 illustrates the connections of a subtended Cisco 6100 Series system with six subtended Cisco 6100 Series systems.
Subtending in this release requires a node-by-node PVC provisioning. Transit PVCs carry subtended traffic. You bundle multiple PVCs for carriage across the ATM fabric in a subtending Cisco 6100 Series system. Up to 32 transit subscribers can be defined per Cisco 6100 Series system, however, there must be at least one on each subtend port. Unlike other subscribers, transit subscribers do not have to be Locked to have PVCs added to or deleted from them. The transit PVCs provide a one-to-one mapping to subscriber PVCs from the subtended Cisco 6100 Series systems.
The configuration database can be downloaded from or uploaded to a Cisco 6100 Series system. This provides the following benefits:
Wizards lead you through the download or upload process. See "Configuration Save and Restore," for more information.
Each ATU-C or STU-C port must have a subscriber ID associated with it. You can add a new subscriber and modify or delete an existing subscriber. Use the following steps to perform any of these three tasks. To add, modify, or delete a subscriber, you use the ATU-C Module Properties dialog box. If a subscriber is already associated with a port, a Subscriber ID displays on both the port and subscriber configuration dialog boxes.
Step 1 To access the Module Properties dialog box, move the cursor to an ATU-C or
STU-C module in the Chassis View and right click the mouse button. The menu in Figure 5-3 appears.
Step 2 Highlight the appropriate port properties menu, then select the Configuration option. The ATU-C Module Properties dialog box shown in Figure 5-4 appears.
Table 5-1 provides field descriptions for the ATU-C Module Properties Configuration dialog box.
| Field or Button | Description |
|---|---|
Administrative State | Displays the status of the Administrative State, either Unlocked or Locked. Defaults to Locked. |
CLEI Code | Shows the Bellcore Common Language Equipment Identifier code. |
Serial Number | Displays the serial number of the module. |
Hardware Version | Displays the hardware version of the module. |
Software Version | Displays the software version of the module. |
Max Upstream Rate Supported | Shows the maximum upstream rate supported by the ATU-C module. |
Max Downstream Rate Supported | Shows the maximum downstream rate supported by the ATU-C module. |
Line Coding | Indicates the modulation technique supported by the modem ports (CAP, DMT, or other). |
Connect Mode | Shows the jumper setting of the module (DOH or Direct Connect). |
After opening the ATU-C Module Properties dialog box using the preceding instructions, execute the following procedures to add a subscriber.
Step 1 Make sure that the module and port are Locked on the Configuration dialog box.
Step 2 Click on a locked port tab and the Port Configuration dialog box appears, as shown in Figure 5-5.
Step 3 Click Apply.
Step 4 Then to add a subscriber, click Add Subscriber. The Subscriber Properties dialog box appears, as shown in Figure 5-6.
Table 5-2 provides field descriptions for the Subscriber Properties dialog box.
| Field | Description |
|---|---|
Administrative State | Displays the Administrative State of the subscriber. Can be Locked or Unlocked. The default is Locked. |
Subscriber ID | Subscriber ID is a required ViewRunner for HP OpenView field that must contain at least one alphanumeric character and can contain up to 20. Its uniqueness is not guaranteed by ViewRunner for HP OpenView. ViewRunner for HP OpenView recognizes and displays subscribers created with null Subscriber IDs, but does not allow modification of subscriber configuration parameters unless an alphanumeric character has been entered. Note If you input more that 20 characters for the Subscriber ID, the system beeps at you starting with the 21st character, which informs you that you are exceeding the field length.Changing the Subscriber ID is a nonservice-affecting operation for the Cisco 6100 Series system. For information about service-affecting vs. nonservice-affecting configuration, see the "Service-Affecting Configuration Rules" section. You can modify the Subscriber ID field when the subscriber is unlocked. |
Service Provisioning | Allows you to actually set up service for a subscriber. Opens the Service Provisioning dialog box. |
| Subscriber Association to Port Group Box | |
Module AID and | Displays the module and slot numbers of the ATU-C. |
Circuit ID | You are able to configure and display a circuit ID for each subscriber. The default value is empty. The Circuit ID field accepts up to 20 characters. Valid characters include "A-Z, a-z, 0-9, [.,-=;:'#!$%&*()<>_+/\]." |
| Service Configuration Group Box | |
Max Allowed Rates Downstream or Upstream | Limits the maximum trained rate of a subscriber's modem. List boxes allow selection of the valid configuration settings using kbps units. See the "ATU-C Train Parameters" section for more information on training. The default on install is 6 dB up and 3 dB down. |
Margin Configuration (Downstream and Upstream) | Allows the operator to associate an upstream and a downstream margin value with a subscriber. See the "Bit Error Rate and Noise Margin" section for more information on setting the margins. This option is disabled for STU-C modules. Note Because increasing the margins could cause a line not to train, a warning dialog box appears when you try to change the noise margin. |
PSD Transmit Power (Downstream and Upstream) | You are able to configure transmit power for each subscriber in units of dBm/Hz. The default value of upstream and downstream transmit power attributes are -38 dBm/Hz upstream and -40 dBm/Hz downstream. Upstream values are -53, -50, -47, -44, -41, -38. Downstream values are -49, -46, -43, -40, -37, -34 This option is disabled for STU-C modules. This option is disabled upstream for DMT-2 modules. |
Allow 136K Baud | The 136 kilobaud training rates now can be enabled or disabled through a system-wide MIB object. If the 136 kilobaud training rates are disabled, then those selections are shaded in ViewRunner and therefore not selectable by you. CAP modules support 136 kilobaud training rates, which can be allowed or disallowed when the feature is supported by the system controller software revision and the subscriber is locked. If the system controller supports per-subscriber provisionable 136 kilobaud or does not support ATUCPARMS, the "Allow 136K Baud" check box on the 6100 Properties dialog box is disabled. (See Figure 2-15, in the "Add ObjectSet Attributes Dialog Box" section.) If the system controller supports ATUCPARMS but does not support per-subscriber 136 kilobaud, then the option is enabled. |
CPE Signature | You can configure per-subscriber CPE signature detection for a LIM controller module through the Subscriber Properties dialog box. You can specify the minimum CPE signature within a range of 0 to 127. The default is 0, which essentially disables CPE signature detection. If the system controller revision supports per-subscriber provisionable CPE detection, then the Performance Management > Line Ports dialog box displays dashes in the Non-timer Failed Trains column and the total for that column is disabled. There is also a column on the subscriber tab of the Performance Management > Subscriber dialog box called CPE Signature Rejects, which totals the number of CPE signatures that were not detected by the design. (See Figure 9-5, Performance ManagementSubscriber.) In addition, the Allow Non-Timer CPE Train check box on the 6100 Properties dialog box is dimmed. (See Figure 2-15, in the "Add ObjectSet Attributes Dialog Box" section.) The Allow Non-Timer CPE Train check box on the 6100 Properties dialog box is not dimmed unless the system controller revision supports ATUCPARMS, but does not support per-subscriber 136 kilobaud. |
Timers Group Box | |
Idle Timeout | If you enable the Idle timer, you can specify the number of minutes that a subscriber can be idle before the connection is dropped. The default is |
Session Timeout | If you enable the Session timer, you can specify the number of minutes that a subscriber can remain connected during any one session. The default is 60 minutes and the valid range for Session Timeout is 1 to 240 minutes. |
Combined Timeout | If you enable the Combined timer, you can utilize either the Idle or Session Timeout settings. |
PVC Idle Mark | If you enable the Idle timer, you can specify a PVC Idle Mark so that the subscriber is disconnected if the PVC falls below the specified number of cells per minute. The default value of the PVC threshold is 15 cells per minute. The range for the PVC threshold is 1 to 2147483647 cells per minute. The PVC threshold is used for low-tide monitoring. If the PVC traffic is less than the threshold for the duration of the timer, then the PVC is considered idle and the subscriber is disconnected. If the traffic is more than the threshold, the PVC is considered active. A subscriber can have multiple PVCs. If at least one PVC is active, then the subscriber stays connected. |
Lockout Time | The Lockout Time can be set in minutes. If the system controller does not support timer settings, then all the fields are dimmed. Otherwise, the fields are available or unavailable depending on the Administrative State of the subscriber (locked or unlocked). The default setting is 5 minutes. The valid range for the Session timer is 1 to 60 minutes. |
Step 5 Enter the name of the subscriber in the Subscriber ID field.
Step 6 Select the maximum allowed downstream and upstream rates from the list boxes.
Step 7 Configure upstream and downstream margins.
Step 8 Select the timer type and connection times.
Step 9 Click OK or Apply to save additions.
Step 10 Repeat for every subscriber you want to define.
You can only add subscribers when a subscriber does not exist for the port. This prevents the assignment of more than one subscriber ID to an ATU-C or STU-C port.
Use the following procedures to modify subscriber data:
Step 1 Navigate to the Subscriber Properties dialog box using either logical service-oriented navigation or by selecting the Edit Subscriber button from the Port Properties
dialog box.
Step 2 Change the Max Allowed Rates Downstream and Upstream fields by selecting values from the list boxes.
Step 3 Change the Margin Configuration Downstream and Upstream fields by selecting values from the list boxes.
Step 4 Check Allow 136K Baud training rates or disallow by leaving the check box blank.
Step 5 Enable or disable CPE Signature detection.
Step 6 Set the timer type by selecting or deselecting Idle and Session.
Step 7 Enter a value for the PVC Idle Mode if an Idle timer is selected or Lockout Time if a Session timer is enabled.
Step 8 Change the Administrative State to Unlocked.
Step 9 Click OK or Apply for the changes to take effect.
Use the following procedures to delete a subscriber:
Step 1 Navigate to the Subscriber Properties dialog box using either logical service-oriented navigation or by selecting Edit Subscriber from the ATU-C or STU-C Port Property dialog box.
Step 2 Click Delete Now to delete the subscriber.
The Delete Now button is dimmed unless the subscriber is locked. If the subscriber's Administrative State has been changed to Locked since opening the dialog box, and that configuration has not yet been applied, then selecting the Delete Now button pops up the lock confirmation dialog box.
You can configure various subscriber defaults in this release and can set the following:
The parameters for setting these are in the vrconstants.conf file. See the ViewRunner for HP OpenView Installation and Administration Guide for more information on configuration files.
In Direct Connect mode, ViewRunner displays a Port Service Configuration dialog box, which shows all the ports available and those that are in service or capable of service.
You access the Port Service Configuration dialog box by right clicking on the multiplexer chassis and choosing the Port Service Configuration menu option.
Figure 5-8 shows an example of the Port Service Configuration dialog box.
Logical service-oriented navigation is available from this dialog box to make it easier for you to navigate to a specific port.
Each subscriber can have multiple PVCs provisioned. Each PVC contains both a network side and a subscriber side virtual connection that are known as VCCs. Each VCC has both a VPI and VCI. For more information on assigning VPI/VCI addresses, see the "Service Provisioning Rules" section.
Each subscriber defined must have a VPI/VCI address associated with it before the subscriber can be unlocked.
Use the following procedures to define VPI/VCI addresses:
Step 1 Click Service Provisioning from the Subscriber Properties dialog box (see Figure 5-6). The Service Provisioning dialog box appears, as shown in Figure 5-11.
You can add or delete a subscriber's PVC in the Service Provisioning dialog box only when the subscriber's Administrative State is Locked. Selecting Delete Now causes a delete confirmation dialog box to appear.
Table 5-3 provides field descriptions for the Service Provisioning dialog box.
| Field | Description |
|---|---|
Subscriber ID | Displays (read only) the subscriber associated with the PVCs. |
Subscriber PVC list | Displays a list of the current subscriber's VCCs, including the subscriber VPI/VCIs, connected to the Network VPI/VCIs. |
Permanent Virtual Connection group box | When the subscriber is locked, you can edit the PVC VPI/VCI values and select Add Now to create a new PVC for the subscriber and add it to the PVC connection list, subject to PVC configuration rules. Selecting Delete Now deletes the PVC selected in the PVC connection list. The network and subscriber side VPI/VCI list boxes allow selection of valid VPI and VCI combinations, subject to PVC configuration rules. |
Path Latency | You can set per-PVC path latency as Interleaved or Fast. Interleaved is the default path type. Fast provides less latency, but higher error bit rates. Note In ViewRunner for HP OpenView Release 2.4.0, Path Latency is set to Interleaved. It is not possible to change the Path Latency setting. |
Queue Priority | You are able to configure Queue Priority for each subscriber PVC if proper permission is set and the feature is supported by the system controller software. The field displays actual settings only if you do not have administrative privileges. The default value of the Queue Priority field is 1, and the field accepts values from 1 to 4. this field allows the system to maintain the higher priority class-of-service traffic at the expense of lower ones. |
Step 2 Enter the VCI/VPI information in their available fields under the Subscribe and Network group boxes. The subscriber side VPI field is not editable.
Step 3 Click Add Now. This takes effect immediately.
Step 4 Repeat for every VCI/VPI address you want to define.
Step 5 Click Close when you are finished.
VCCs can be added or deleted only if the subscriber is locked. There are 4 VCCs per subscriber, and ViewRunner supports range checking.
ViewRunner for HP OpenView provides you information regarding valid and invalid VPI and VCI numbers prior to entering a number. ViewRunner for HP OpenView also displays an error message when it detects a network-side uniqueness violation.
Use the following procedures to delete subscriber PVCs:
Step 1 From the Service Provisioning dialog box, click the subscriber PVC that you want
to delete.
Step 2 Click Delete Now. This takes effect immediately.
Step 3 Repeat for every PVC you want to delete.
Step 4 Click Close when you are finished.
Once you have entered and verified all logical pool, module, port, subscriber, and VCI/VPI data, you must unlock the entities to put them into service. Unlocking simply requires clicking Unlocked in various dialog boxes and clicking Apply.
Putting a provisioned subscriber into service requires unlocking all associated entities.
Step 1 Position the cursor on the appropriate ATU-C or STU-C port.
Step 2 Right click Port Properties > Port Configuration, as shown in Figure 5-11.
The ATU-C Port Properties dialog box appears, as shown in Figure 5-12.
Step 3 Click Add Subscriber or Edit Subscriber. The Subscriber Properties dialog box appears, as shown in Figure 5-13.
Step 4 Click Unlocked.
Step 5 Click Apply and then click OK to return to the ATU-C Module Properties dialog box. The subscriber is now unlocked for service.
Step 1 Right click on an ATU-C module and select Port Properties > Port Configuration, as shown in Figure 5-14.
The ATU-C Port Properties Configuration dialog box appears, as shown in Figure 5-15.
Step 2 Click Unlocked. This unlocks the port for service.
Step 3 Click Apply and then click OK to return to the Chassis View.
Step 1 Right click on the ATU-C module and select Module Properties > Module Configuration.
The ATU-C Module Properties Configuration dialog box appears, as shown in Figure 5-17.
Step 2 Click Unlocked. This unlocks the module for service.
Step 3 Click Apply and then click OK to return to the Chassis View, or to unlock a port, click on the Port tab.
If you are subtending Cisco 6100 Series systems, provision the local Direct Connect subscribers and their PVCs just like you do any Cisco 6100 Series system according to the preceding directions. However, you must also provision transit subscriber and transit PVCs on each of the subtending host Cisco 6100 Series systems in the path of each PVC for a subtended Cisco 6100 Series system.
Transit subscribers are simply placeholders for bundling transit PVCs. Unlike standard subscribers, they do not need to be locked to have transit PVCs assigned to or deleted from them. Typically, a single transit subscriber is assigned to each subtend port, or multiple subscribers could be assigned to aggregate traffic for a specific Cisco 6100 Series system that is subtended from a node. Up to 32 total transit subscribers can be defined per Cisco 6100 Series system.
The transit PVCs on the subtend port have the same VPI/VCI as the subtended PVC on the network interface of the subtended Cisco 6100 Series system. The VPI/VCI that the transit PVC is cross-connected to on the subtending Cisco 6100 Series system network interface must either be connected to another transit PVC on another Cisco 6100 Series system, or to the target VPI/VCI on an ATM edge switch. Figure 5-18 illustrates an end-to-end PVC across a subnetwork of subtended Cisco 6100 Series systems.
In Figure 5-18, Subscriber x on MC 4 has a PVC y that is connected to a LIM or ATU-C port on VPI=vpi1/VCI=vci1. Within Cisco 6100 Series system number two, this PVC is cross-connected to the NI on VPI=vpi2/VCI=vci2. On MC 2, a Transit subscriber w is defined to which Transit PVC z is added. Transit PVC z has its ingress side connected to the same VPI/VCI as the egress side of the PVC from MC 4, VPI=vpi2/VCI=vci2. The cross-connection within MC 2 is then connected to VPI=vpi3/VCI=vci3 on the MC 2 NI. Finally, MC 1 takes in the PVC on Transit subscriber m, Transit PVC n. Transit PVC n connects VPI=vpi3/VCI=vci3 on the subtend port to VPI=vpi4/VCI=vci4 on the network interface and into the ATM cloud.
To add a transit subscriber, use the following procedures:
Step 1 Go to the 6100 Chassis View of the Cisco 6100 Series system, which is the host (pass through) for the subscribers on the subtended Cisco 6100 Series system(s). Right click the subtend host module (STM) and choose Port Properties > Port Configuration, as shown in Figure 5-19.
Step 2 The STM Port Properties dialog box appears, as shown in Figure 5-20. Click Add to add a transit subscriber.
Step 3 A dialog box appears, as shown in Figure 5-21, where you specify the subscriber ID for the transit subscriber. Enter the ID and click OK.
Step 4 The new subscriber appears in the list of subscribers. Highlight the new subscriber, and click Edit.
Step 5 The Transit Subscriber Properties dialog box opens, as shown in Figure 5-22, for you to provision the transit subscriber.
Notice that the Transit Subscriber dialog box is similar to the local service provisioning dialog boxes, but it labels the subscriber side VPI/VCI connection fields as "Transit Subscriber VPI/VCI."
Posted: Fri Oct 8 16:01:46 PDT 1999
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