Configuring the Default Option Set

Default Option Set User Interface Pages

Selecting the Default Option Set to Configure

Managing the Default Option Set

Listing Default Options

Defining Default Options

Tips for Using the Edit Default Options Page

Adding Default Options

Cloning Default Options

Modifying Default Options

Deleting Default Options

Configuring the Default Option Set

You can use the Modem Registrar user interface to configure the default option set. This high-level option set contains DOCSIS options that apply to most cable modems. Cisco recommends that you assign options to the default option set before assigning options for other option set scopings.

This chapter describes how to assign and modify default options for the default option set.

Default Option Set User Interface Pages

Figure 6-1 shows the hierarchy of the user interface pages used to configure the default option set.

Figure 6-1: Hierarchy of Default Option Set Pages

Selecting the Default Option Set to Configure

You can use the Configure Option Sets page (see Figure 6-2) to select the option set you want to configure.

Figure 6-2: Configure Option Sets Page

To select the default option set, click Default. The Edit Default Option Set page appears.

Managing the Default Option Set

You can use the Edit Default Option Set page (see Figure 6-3) to do the following:

Modify the default neighborhood
Access the user interface page used to assign and modify default options
Access the user interface page used to list all of the options currently defined in the default option set

Note A neighborhood provides a means of grouping computers, and contains shared settings that affect the provisioning of subscribers. A neighborhood may also administer to one or more shared cable modems. You can use the User Registrar application to create neighborhood objects. For more information, see the User Registrar User's Guide.

Figure 6-3: Edit Default Option Set Page

To modify the default neighborhood, select a neighborhood object from the Edit Default Neighborhood pull-down list. Setting a default neighborhood is optional, and the selection defaults to <none>.

To assign and modify options common to all service types and levels, click Common Options.

To assign and modify options for a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

To list the DOCSIS options currently defined in the default option set, click List All Options.

Listing Default Options

You can use the List Default Options page (see Figure 6-4) to list all of the default options currently defined in the default option set.

Figure 6-4: List Default Options Page

To list the default options , do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Option Sets.

Step 3 On the Configure Option Sets page, click Default.

Step 4 On the Edit Default Option Set page, click List All Options. The List Default Options page appears, listing all of the options currently defined for the default option set.

Step 5 To hide the suboption values of compound options, click Shrink.

Note

Shrink

Expand

Step 6 To display the suboption values of compound options, click Expand.

Note

Expand

Shrink

Step 7 Click OK to close this page. The Edit Default Option Set page appears.

Defining Default Options

You can use the Edit Default Options page (see Figure 6-5) to do the following:

Add new options to the default option set
Copy an existing option and add the cloned copy to the default option set
Modify the DOCSIS options currently defined in the default option set
Remove options from the default option set

Figure 6-5: Edit Default Options Page

Tips for Using the Edit Default Options Page

Refer to the following information when using the Edit Default Options page (see Figure 6-5). For more information, see the online Help page.

To view the DOCSIS specification for an option, click for that option.
To hide the suboption values of compound options, click Shrink. When you click Shrink, the Edit Default Options page redisplays and the suboption values are not visible. The Shrink button then changes to Expand.
To display the suboption values of compound options, click Expand. When you click Expand, the Edit Default Options page redisplays and the suboption values are visible. The Expand button then changes to Shrink.

Adding Default Options

You can use the Edit Default Options page (see Figure 6-5) to add options to the default option set.

To add a default option, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Option Sets.

Step 3 On the Configure Option Sets page, click Default.

Step 4 On the Edit Default Option Set page, do one of the following:

To add a default option common to all service types and levels, click Common Options.
To add a default option for a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

Note

Type/Level Options

Step 5 On the Edit Default Options page, select a discrete option number from the Add Option pull-down list and click Add Option.

Note

Add Option

Step 6 In the corresponding Value field for the new option, enter the value you want to assign to the option. You must specify a value for simple options. For compound options , you must specify a value for at least one of the suboptions, but you can choose to leave some of them blank.

Step 7 Click OK to save the new option.

If the information in all of the fields is valid, the page redisplays with the new option added.

If any of the information is invalid, a message appears asking you to correct the invalid information. Correct the information and click OK.

Cloning Default Options

You can use the Edit Default Options page (see Figure 6-5) to clone an option. Cloning an option copies and adds an exact copy of a compound option and all of its suboptions to the default option set. You can clone only multi-instance compound options.

To clone a multi-instance compound option, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Option Sets.

Step 3 On the Configure Option Sets page, click Default.

Step 4 On the Edit Default Option Set page, do one of the following:

To clone a compound option common to all service types and levels, click Common Options.
To clone a compound option for a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

Note

Type/Level Options

Step 5 On the Edit Default Options page, locate the compound option you want to clone and click Clone for that option.

Note

Step 6 Modify the cloned option as desired by doing the following. You must modify the cloned option to distinguish it from the original option. The TFTP server cannot use the cloned option until you modify it.

To modify the value assigned to the cloned option, edit the value in the Value field. You do not need to specify a value for all of the suboptions.
To change the rule by which a multi-instance option is applied to cable modems, select a rule from the Rule pull-down list.

: Select Replace to discard the previous option and replace it with the option associated with the rule.
: Select Append to retain the previous option and add to it the option associated with the rule.

Note An error message appears if you specify both the replace and append rules for a multi-instance option within the same option set. For more information, see the

"Option Rules" section

Step 7 To add the suppress rule to a multi-instance option, select the discrete option number from the Suppress Option pull-down list and click Suppress Option. The page redisplays, showing the new suppress rule.

Note

Step 8 Click OK to save the cloned option and its suboptions.

If the information in all of the fields is valid, the page redisplays with the cloned option listed.

If any of the information is invalid, a message appears asking you to correct the invalid information. Correct the information and click OK.

Modifying Default Options

You can use the Edit Default Options page (see Figure 6-5) to modify an option in the default option set.

To modify an option assigned in the default option set, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Option Sets.

Step 3 On the Configure Option Sets page, click Default.

Step 4 On the Edit Default Option Set page, do one of the following:

To modify an option common to all service types and levels, click Common Options.
To modify an option for a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

Note

Type/Level Options

Step 5 On the Edit Default Options page, locate the option number you want to modify and modify the option as desired by doing the following:

To modify the value assigned to the option, edit the value in the Value field. You must specify a value for simple options. For compound options, you must specify a value for at least one of the suboptions, but you can choose to leave some of them blank.
To change the rule by which a multi-instance option is applied to cable modems, select a rule from the Rule pull-down list.

: Select Replace to discard the previous option and replace it with the option associated with the rule.
: Select Append to retain the previous option and add to it the option associated with the rule.

Note An error message appears if you specify both the replace and append rules for a multi-instance option within the same option set. For more information, see the

"Option Rules" section

Step 6 To add the suppress rule to a multi-instance option, select the discrete option number from the Suppress Option pull-down list and click Suppress Option. The page redisplays, showing the new suppress rule.

Note The

suppress rule prevents option values of more specific scopings (such as vendor option sets) from being used. This rule applies only to multi-instance options. The Suppress Option pull-down list displays all of the discrete option numbers currently defined, except those option numbers for which a suppress rule is already specified.

Step 7 Click OK to save the changes you made to the fields on this page.

If the information in all of the fields is valid, the page redisplays with the changes visible.

If any of the information is invalid, a message appears asking you to correct the invalid information. Correct the information and click OK.

Note

Deleting Default Options

You can use the Edit Default Options page (see Figure 6-5) to remove an option from the default option set.

To remove an option, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Option Sets.

Step 3 On the Configure Option Sets page, click Default.

Step 4 On the Edit Default Option Set page, do one of the following:

To remove an option common to all service types and levels, click Common Options.
To remove an option for a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

Note

Type/Level Options

Step 5 On the Edit Default Options page, locate the option you want to remove and click Delete for that option. A confirmation message appears asking you if you want to remove the option. Click Yes or No as appropriate.

Click Yes to remove the option. If it is a compound option, all of its suboptions are also removed.

Click No to leave the option unchanged.

Step 6 On the Edit Default Options page, click OK to save the change you made on this page.

Table of Contents

Configuring the Default Option Set