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This chapter describes how to configure Profiles and Subscribers using the Cisco Digital Subscriber Line Manager (CDM).
Configuring a profile enables you to apply a set of existing parameters to a number of similar objects so that you do not need to enter the same data several times.
The CDM has two types of profile configurations:
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Note When you use CDM to change a profile, all entities that use that particular profile immediately reflect the change. |
To view and configure the DMT Profiles for the NI-2 object selected, use the DMT Profiles window. The Profile Name box displays the ADSL line configurations. Each configuration contains a defined profile on the NI-2. You can use a profile on an NI-2 to configure the ADSL line.
To view the DMT Profiles window:
Step 2 From the pop-up menu, select DMT Profiles. The DMT Profiles window appears (Figure 5-1).
The DMT Profiles window contains two tabbed sections:
You can view the DMT Profiles configured on the NI-2 object selected from the list box on the View/Delete tab. You also have the option to delete a selected object.A window similar to Figure 5-1 appears with the following information:
Profile Name
This list box displays a list of the available profile names for the selected NI-2 object.
When you select a Profile Name, the relevant information is retrieved, the selected Profile Name is highlighted in the Profile Name list box, and the retrieved information appears in the Downstream/Upstream Parameters and DMT Parameters sections.
Line Profile Name
This field displays the profile name of the selected object.
Downstream/Upstream Parameters
This section displays the downstream and upstream parameters associated with the selected profile. The displayed upstream parameters pertain to the physical layer parameters for the central upstream class devices. The displayed downstream parameters pertain to the physical layer parameters for the remote downstream class devices.
DMT Parameters
This section displays the profile of the DMT parameters associated with the selected object:
To view the DMT Profile for other NI-2 cards:
Step 2 A list of corresponding DMT profiles will be displayed in the Profile Name list box. Select the Profile Name you wish to view.
The related information appears in the appropriate box of the Downstream/Upstream Parameters section and the DMT Parameters section.
To add a DMT profile:
Step 2 Enter the values into the appropriate boxes.
Step 3 Enter the name of the new profile in the New Line Profile Name box.
Step 4 Click the Add button.
You can add a new DMT profile for the NI-2 object selected from the list box (Figure 5-2). You can only select one NI-2 object at a time.
The Add tab has three sections, described below:
In the data entry box, enter a new profile name for the selected object
Configure the following Downstream/Upstream parameters for a selected NI-2 object (see Figure 5-2):
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Note You can enter any whole number in the Downstream/Upstream Parameters data entry boxes. Values can be positive or negative. |
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Note Configured allocation ratios of excess transmit bandwidth between fast and interleaved channels. This only applies when two-channel mode and RADSL are supported. |
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Note Configured allocation ratios of excess transmit bandwidth between fast and interleaved channels. This only applies when two-channel mode and RADSL are supported. |
Configure the following DMT parameters (see Figure 5-2) for the selected object.
A collection of managed objects defining the enterprise-specific line configuration information associated with one or more ADSL ATU class devices implementing the DMT line code. A configuration profile containing enterprise-specific ADSL DMT line configuration information. Select the required option, either the Echo Cancel or the Frequency Division Multiplex, from the combo box as follows:
Select the operating mode in this data entry box. This object specifies the line-operating mode being employed by the ADSL line. An ADSL line uses one of two operating modes:
Select the training mode in this data entry box. This object specifies the mode employed by the downstream and upstream devices when training against each other. One of two training modes can be employed:
Select the Trellis encoder from the options, that is: enable or disable from the combo box. Use of trellis coding is determined at line initialization with C-MSGS1 and R-MSGS1 exchanges and does not change until the line is reinitialized. Defines the operational mode of the DMT ADSL transceiver. This is configured in the C-MSG1 and C-MSG-RA exchanges.
Select the overhead framing from the available options:
Two types of ADSL framing are possible:
Each of these options has two versions of full overhead and two versions of reduced overhead. Table 5-1 defines the four framing structures:
| structure0 | Full overhead framing with asynchronous bit-to-modem timing (enabled synchronization control mechanism) |
|---|---|
| structure1 | Full overhead framing with synchronous bit-to-modem timing (disabled synchronization control mechanism) |
| structure2 | Reduced overhead framing with separate fast and sync bytes in fast and interleaved latency buffers respectively (64 kbps framing overhead) |
| structure3 | Reduced overhead framing with merged fast and sync byte, using either the fast or interleaved latency buffers (32 kbps framing overhead) |
During the training sequence:
Management requirements drive the determination of overhead (full or reduced):
If an ADSL line is supporting an:
Select either Enable or Disable to set whether or not the upstream device performs bitswapping.
Bitswapping attempts to maintain an acceptable margin for each bin equalizing the margin across all bins through bit reallocation, thereby maximizing error performance. The upstream device performs bitswapping by monitoring the margin measured for each bin by the transmitter:
The upstream device attempts to equalize the margin across the bins by swapping bits out of bins marked From into bins marked To.
If the upstream device swaps a bit:
In addition, the downstream device may optionally implement its own monitoring capability. The downstream device uses this information to request the upstream device to perform bitswapping. When this object is true, the upstream device must be prepared to accept and properly handle bitswap requests from the downstream device.
While bitswapping has advantages, bitswapping can have undesirable side effects. It can introduce errors on lines prone to impulse noise. In this case, it may be desirable to disable bitswapping.
Enter the bits that are swapped out of the bin.
Enter the bits that are swapped into the bin.
In this dialog box, enter the name of the new profile.
To delete a selected DMT profile:
Step 2 Select the required DMT profile configuration profile you wish to delete. The related information appears in the appropriate box of the Downstream/Upstream Parameters section and the DMT Parameters section.
Step 3 Click the Delete button. A Delete Profile? confirmation window appears.
Step 4 Click Yes to proceed or No to cancel.
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Note The agent checks to see if this row is still in use by any entry. The agent denies the request if the row is still in use. |
Use the ATM Traffic Descriptor Configuration Manager window to configure, view, or delete the ATM traffic descriptor for the NI-2 object selected.
To view the ATM Traffic Descriptor Configuration Manager window (Figure 5-3):
Step 2 From the pop-up menu, select ATM Traffic Descriptors. The ATM traffic Descriptor Configuration Manager window appears (Figure 5-3).
The ATM Traffic Descriptor Configuration Manager window contains two tabbed sections:
The View/Delete tab shown in Figure 5-3 appears by default when the ATM Traffic Descriptor Configuration appears. You can view or delete the ATM Traffic descriptor parameter of the NI-2 object selected from the list box. You can select only one NI-2 object at a time from the list box to configure the ATM Traffic Descriptor parameters.
The list box displays the list of ATM Traffic Descriptors available for the selected NI-2 object.
Select the required ATM Traffic Descriptor, the relevant information is retrieved and displayed in the ATM Traffic Parameter section.
This section in the window shown in Figure 5-3 details the selected ATM Traffic Descriptor.
Explicit Service Category
This field displays the Service Category specified by the Traffic Descriptor and determines the possible values for the Traffic Descriptor. Refer to Table 5-2 for further details.
Descriptor Type
This field displays the Descriptor Type of the Service Category. Refer to Table 5-2 for further details.
Parameter 1 to Parameter 5
This field displays the value, depending on the combination of the Service Category, and the Descriptor Type you selected. Refer to Table 5-3 for further details.
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Note In View/Delete mode, the ATM Traffic Descriptor displays the values of the parameters. |
To select an object from the list box and view the ATM Traffic Descriptor Configuration:
Step 2 Click the required ATM Traffic Descriptor you wish to view. The related information appears in the appropriate box of the ATM Traffic Descriptor section.
To delete the ATM Traffic Descriptor Configuration:
Step 2 Select the required ATM Traffic Descriptor to delete. The related information appears in the appropriate box of the ATM Traffic Descriptor section of the window.
Step 3 Click the Delete button. A Delete Profile? window appears, prompting you to confirm the deletion.
Step 4 Click the Yes button to delete or click the No button to ignore the delete operation.
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Note The agent checks to see if this row is still in use by any entry of the atmVplTable or atmVclTable. The agent denies the request if the row is still in use. |
Select this tab to Add the ATM Traffic descriptor parameter of the NI-2 object selected from the list box. You can select only one NI-2 object at a time to add an ATM Traffic Descriptor (Figure 5-4).
You can configure the following parameters for the selected ATM Traffic Descriptor of the NI-2 object:
Explicit Service Category
There are five categories included in the Explicit Service Category combo box, CBR, VBR, ABR, VBR/NRT, UBR. Select one category.
Descriptor Type
Based on the option selected in the Explicit Service Category, a list of the corresponding Traffic descriptor types appears. Select the Descriptor Type of the Service Category from this combo box. Refer to Table 5-3 for further information.
Parameters (1 to 5)
Make sure the values of the parameters are an integer value. Some parameters are not used. You cannot enter any string values in these fields which are greyed out. The labels of the Parameters (1 through 5) change. This change reflects the values you enter for that combination of Explicit Service Category and Descriptor Type. Table 5-2 presents the correspondence between Explicit Service Categories and Traffic Descriptor Types.
| Explicit Service Category | Possible Traffic Descriptors |
|---|---|
cbr | atmNoClpNoScr. atmClpNoTaggingNoScr atmClpTaggingNoScr atmNoClpNoScrCdvt |
abr/ubr | atmNoTrafficDescriptor atmNoClpNoScr. atmNoClpNoScrCdvt atmNoClpMcr atmNoClpMcrCdvt |
vbrRt/vbrNrt | atmNoClpScr atmClpNoTaggingScr atmClpTaggingScr atmClpScrMbsCdvt atmNoClpScrMbsCdvt |
| Possible Traffic Descriptors Type | Parameter 1 | Parameter 2 | Parameter 3 | Parameter 4 | Parameter 5 |
AtmNoTrafficDescriptor | Not used | Not used | Not used | Not used | Not used |
AtmNoClpNoScr | CLP=0+1 Peak Cell Rate | Not Used | Not Used | Not Used | Not Used |
AtmClpNoTaggingNoScr | CLP=0+1 Peak Cell Rate | CLP=0 Peak Cell Rate | Not Used | Not Used | Not Used |
AtmClpTaggingNoScr | CLP=0+1 Peak Cell Rate | CLP=0 Peak Cell Rate with excess traffic tagged CLP=1 | Not Used | Not Used | Not Used |
AtmNoClpScr | CLP=0+1 Peak Cell rate | CLP=0+1 Sustainable Cell rate | CLP=0+1 Max Burst Size | Not Used | Not Used |
AtmClpNoTaggingScr | CLP=0+1 Peak Cell Rate | CLP=0 Sustainable Cell rate | CLP=0 Max Burst Size | Not Used | Not Used |
AtmClpTaggingScr | CLP=0+1 Peak Cell Rate | CLP=0 Sustainable Cell Rate with excess traffic tagged as CLP=1 | CLP=0 Max Burst Size | Not Used | Not used |
AtmNoClpNoScrCdvt | CLP=0+1 Peak Cell rate | CDVT | Not used | Not Used | Not Used |
atmClpScrMbsCdvt | CLP=0+1 Peak Cell Rate | CLP=0 Sustainable Cell Rate | Max Burst Size | CDVT | Not Used |
atmNoClpScrMbsCdvt | CLP=0+1 Peak Cell Rate | CLP=0+1 Sustainable Cell Rate | Max Burst size | CDVT | Not used |
atmNoClpMcr | CLP=0+1 Peak Cell Rate | CLP=0+1 Minimum cell rate | Not used | Not Used | Not Used |
atmNoClpMcrCdvt | CLP=0+1 Peak Cell rate | CDVT | CLP=0+1 Minimum cell rate | Not Used | Not Used |
To add an ATM Traffic Descriptor:
Step 2 Click the Explicit Service Category combo box. A list of options appears. Select the required option.
Step 3 Click the Descriptor Type combo box. A list of options appears. Select the required option.
Step 4 Enter the required values.
Step 5 Click the Add button.
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Note An index number is automatically assigned to the newly added traffic descriptor. This number cannot be changed. |
Step 6 A list of parameters appears for the above combination in the respective parameter/text box.
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Note In the Add mode of operation the parameters will change their Labels according to the combination selected. The Add operation will fail if the system cannot generate a unique index for the new entry (descriptor). |
Step 7 To save the information, select Save from the File menu or click the Save icon on the window toolbar.
To add a subscriber you must:
A customer's connection can then be configured using the Subscriber Configuration option. Refer to the "Adding a Subscriber" section .
Configuring a subscriber means establishing a customer's connection. This process includes:
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Note A window is provided with the list of available Subscriber Profiles and Traffic Descriptors. In this window, enter a VPI/VCI pair for making a subscriber connection. |
Use the DMT Port Configuration Manager window to configure the DMT port.
To view the DMT Port Configuration Manager window:
Step 2 Place the cursor over the relevant DMT line card. Press and hold down the right mouse button. A pop-up menu appears.
Step 3 Select the Configure --\> ADSL Line option, and release the mouse button.
The DMT Port Configuration Manager window appears with the DMT Configuration tab displayed as default (Figure 5-5).
Configure the parameters on the DMT Configuration tab.
A PVC is a permanent logical connection that you must configure manually from source to destination. PVCs save bandwidth associated with circuit establishment in situations in which certain virtual circuits must exist all of the time. You can launch the PVC configuration window from an ADSL line or OC-3 port.
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Note PVCs can be either Hard or Soft. PVCs can be configured for subscribers, subtending and loopback. |
To view the PVC Configuration Manager window:
Step 2 Place the cursor over the relevant ADSL line or DS3 port. Press and hold down the right mouse button and select Configure --\> PVC from the pop-up menu.
The PVC Configuration Manager window appears with the View/Delete tab viewable by default (Figure 5-6).
The PVC Configuration window is divided into four tabs:
To view or delete an existing Permanent Virtual Circuit (PVC) parameter, select the View/Delete tab (shown in Figure 5-6). The object list displays the object that you have selected (either an OC-3 port or an ADSL line).
The following parameters appear in the table as:
Configuration Type appears whether the VCC is permanent or soft.
Traffic Parameters is a collection of objects providing information about ATM traffic descriptor type and the associated parameters:
The Operation, Administration, and Maintenance (OAM) details display the ATM Forum specification for cells used to monitor virtual circuits. If OAM is launched from a trunk port, the details on the AIS mode and RDI mode will be displayed. OAM cells provide a virtual circuit-level loopback in which a router responds to the cells, indicating that the circuit is up, and the router is operational.
The Soft PVC Details section displays information about the following parameters:
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Note In the confirmation box click Yes to proceed or No to cancel the Delete operation. |
To view or edit existing OAM information, click the Edit tab (Figure 5-7). Click the Index test box of the VCL whose OAM information you are interested in. The OAM parameters group displays the selected VCL details.
The Edit tab has the following OAM parameters:
Click the Edit button to make changes to any parameters.
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Note A confirmation box will be displayed for you to confirm the Edit operation. |
To create a new permanent virtual circuit (PVC), click the Create PVC tab (Figure 5-8).
Use the Source section of the Create PVC tab to enter the source details for the VPI and VCI values.
Enter the destination VPI and VCI values in the Destination section.
Enter the relevant early packet discard (EPD) and usage parameter control (UPC) mode details for the Traffic Information parameter.
The OAM Information tab displays the alarm indication signal (AIS) mode and the RDI mode details. Select the required combination from the respective combo box.
To create a new PVC, click the Create button.
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Note A confirmation box prompts you to confirm the Create operation. |
Soft PVCs are a combination of SVCs and PVCs. SVCs are set up on the inside of the path among ATM switch routers, and PVCs are set up between an edge ATM switch router and the terminating device, such as a router.
Soft PVCs require less manual configuration than PVCs. To establish an SPVC, you must enter or select values for al of the fields in the Create SPVC tab. Specifically, after you enter a value for Retry Interval, you must enter a value for the destination NSAP Address.
To create a new soft permanent virtual circuit (SPVC), click the Create SPVC tab (Figure 5-9).
The Create SPVC tab contains five sections as follows:
Use the Source section of the Create SPVC tab to enter the source details for the VPI and VCI values.
Use the Destination section of the Create SPVC tab to enter the Destination details for the VPI and VCI values.
Enter the relevant early packet discard (EPD) and usage parameter control (UPC) mode details for the Traffic Information parameter.
The OAM Information displays the alarm indication signal (AIS) mode and the remote defect identification (RDI) mode details. Click the required combination from the respective combo box.
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Note A confirmation box prompts you to confirm the soft PVC creation. |
To delete a subscriber, you must:
Subtending enables you to connect the NI-2 cards on two Cisco 6260 or 6130 DSLAMs to support more subscribers under the same trunk port. The subtending feature provides a mechanism to direct traffic from a number of DSLAMs into one network trunk port. A maximum of 12 nodes can be subtended from the root node but at any level the number of NI-2 cards should not exceed more than 6 in a series.
Subtending requires connection of the ATM ports in the NI-2 of one Cisco DSLAM to the NI-2 of another DSLAM.
This feature allows improved per-port costs for service providers by reducing the number of ports required in an aggregator or backhaul network when multiple DSLAMs are installed in one location.
The following requirements apply to the subtending feature:
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Note OC-3 cards have two ports and therefore, can be daisy-chained. |
To subtend from an NI-2 card:
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Note The following steps pertain to subtending by connecting the DS3 ports of two Cisco 6130 DSLAMs |
Step 2 Select the Deploy 6130 DSLAM under ciscoDSLDS3Port option.
Step 3 Click the Forward button. The Deployment Details window appears (Figure 5-11).
Step 4 Click the Forward button to proceed. The Object Details window appears (Figure 5-12).
Step 5 Enter the IP Address of the DSLAM device to be subtended.
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Note The values in the other boxes are displayed by default. To change the entries, select the relevant field and then edit the field. |
Step 6 Click the Forward button. The Containment Details window appears (Figure 5-13).
Step 7 Click the Select button. The physContainment Tree window appears (Figure 5-14).
This window displays the hierarchy of the objects in the site that was subtended.
Step 8 Select the existing port from which the new NI-2 should be subtended.
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Note Only objects with a green indicator can be selected. |
Step 9 Click the Apply button. The Containment Details window reappears (see Figure 5-13).
Step 10 Click the Forward button.
Step 11 Click the Apply button. The Deployment Summary window appears (Figure 5-15).
Step 12 Click Finish.
The Cancel button changes to Dismiss and Deployment Summary details appears relevant to the operation. If the operation is successful then the Deployment Succeeded message appears.
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Note Do not close the Deployment Summary window before any result or message appears for the operation performed. |
Deployment may fail for two reasons:
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Note If you have an error due to duplicate names, then the subtended object appears in the hierarchy. Delete the object, then repeat the process using unique names. |
Click the Dismiss button to complete the subtending operation.
Posted: Wed May 17 12:06:58 PDT 2000
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