Configuring CMTS Group Option Sets

To configure and list the CMTS group option sets, click CMTS Group. The CMTS Group Option Set List page appears.

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 CMTS Group. The CMTS Group Option Set List page appears, listing all of the CMTS group option sets currently defined.

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, click Add Option Set.

Step 5 On the Add CMTS Group Option Set page, enter the name of the new CMTS group option set in the CMTS Group Option Set Name field. This name must be unique.

For example: concord

Step 6 Select the DOCSIS version you are using from the CMTS Group DOCSIS Version pull-down list. The default is DOCSIS version 1.0.

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Note If you set a DOCSIS version in an individual CMTS option set, that version overrides the version you set in the CMTS group option set.

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Step 7 Set a shared secret by doing one of the following. You must specify a shared secret either in this CMTS group option set or in the CMTS option set associated with this group. The CMTS uses the shared secret to verify that the file was not tampered with and that a trusted TFTP server sent it.

• To use the shared secret set in the CMTS option set associated with this CMTS group option set, select the Omit Group Secret radio button. The CMTS option set must have a shared secret specified.

• To use the null string as the shared secret, select the Secret is Null String radio button.

• To set a shared secret in this CMTS group option set, do the following:
  
  
  • Select the Secret Specified Below radio button.
    
  • Enter the shared secret in the Type and Retype fields. You must enter the shared secret identically in the Type and Retype fields. If you do not, an error message appears indicating that the shared secret must be entered the same way twice.

Step 8 Click OK to add the new group option set.

If the CMTS option set name is unique and all of the other fields are valid, the new option set is added. The CMTS Group Option Set List page appears.

If any information in the fields is invalid, a message appears asking you to correct the invalid information.

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, click Clone Option Set.

Step 5 On the Clone CMTS Group Option Set page, select the CMTS group option set that you want to copy from the Clone from Option Set pull-down list. This list contains the names of all of the CMTS group option sets currently defined.

Step 6 Enter the name of the CMTS group option set you are creating in the Clone to Option Set field. This name must be unique.

Step 7 Enter the description for the new CMTS group option set in the Description field to further identify it. This field is optional. You can choose to leave this field blank.

Step 8 Click OK to add the new option set.

If the CMTS option set name you entered and all of the information in the other fields are valid, the new CMTS group option set is added and the CMTS Group Option Set List page appears.

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

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the CMTS group option set you want to modify in the list of option sets and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, modify the option set as desired by doing the following:

• To change the DOCSIS version the option set uses, select the DOCSIS version from the Edit CMTS Group DOCSIS Version pull-down list. The default is DOCSIS version 1.0.

If you also specify a DOCSIS version in an individual CMTS option set associated with this CMTS group option set, the DOCSIS version in the individual CMTS option set overrides the version you specify in the group option set.

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Note A built-in scoping of option sets defines the options that must be included or excluded from a generated configuration file for a specific DOCSIS version. Settings for mandatory options in less specific option set scopings can override the mandatory options in the built-in option set. However, the mandatory options cannot be suppressed. The TFTP server assembles only those options appropriate for the particular cable modem.

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• To change the shared secret, do one of the following:
  
  
  • To use the shared secret set in the associated CMTS option set, select the Omit Group Secret radio button. The associated CMTS option set must have a shared secret specified. If not, an error message appears.
    
  • To use the null string as the shared secret, select the Secret is Null String radio button.
    
  • To specify a different shared secret, select the Secret Specified Below radio button and enter the new shared secret in the Type and Retype fields. You must enter the shared secret identically in both fields. If you do not, an error message appears indicating that the shared secret must be entered the same way twice.

• To modify the description of the CMTS group option set, edit the description in the Edit Description field.

• 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>.

Step 6 Click OK to save the changes you made to the fields on this page. The CMTS Group Option Set List page appears.

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the CMTS group option set you want to remove in the list of option sets and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, check the name of the CMTS group option set displayed just below the Navigation Bar and verify that you selected the correct CMTS group option set.

Step 6 Click Delete Option Set to remove the option set. A confirmation message appears asking you if you want to remove the option set. Click Yes or No as appropriate.

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the option set containing the options you want to list and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, click List All Options. The List CMTS Group Options page appears, listing all of the CMTS group options defined for this option set.

When you click Shrink, the Edit CMTS Group 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 CMTS Group Options page redisplays and the suboption values are visible. The Expand button then changes to Shrink.

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the CMTS group option set to which you want to add an option and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, do one of the following:

• If the CMTS group option you are adding applies to all service types and levels, click Common Options.

• If the CMTS group option you are adding applies to a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

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Note You must select a service type before you click Type/Level Options. If you do not, an error message appears asking you to make the selection.

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Step 6 On the Edit CMTS Group Options page, select a discrete option number from the Add Option pull-down list and click Add Option. The Edit CMTS Group Options page redisplays with the new option listed.

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Note The Add Option pull-down list displays the current list of options defined. Single-instance options (those occurring only once) for which a value is already specified do not appear in the pull-down list.

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Step 7 In the 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 8 Click OK to save the new option.

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

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

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the CMTS group option set to which you want to clone an option and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, do one of the following:

• To clone a compound option that applies to all service types and levels, click Common Options.

• To clone a compound option that applies to a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

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Note You must select a service type before you click Type/Level Options. If you do not, an error message appears asking you to make the selection.

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Step 6 On the Edit CMTS Group Options page, locate the compound option you want to clone and click Clone for that option.

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Note The Edit CMTS Group Options page redisplays and the newly cloned option and all of its suboptions appear in the list of options.

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Step 7 Click OK to save the cloned option and its suboptions.

If the information in all of the fields is valid, the Edit CMTS Group Option Set page appears.

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

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 CMTS Group.

Step 4 On the CMTS Group Option Set List page, locate the name of the CMTS group option set containing the option you want to modify and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, do one of the following:

• To modify an option that applies to all service types and levels, click Common Options.

• To modify an option that applies to a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

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Note You must select a service type before you click Type/Level Options. If you do not, an error message appears asking you to make the selection.

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Step 6 On the Edit CMTS Group Options page, locate the option number you want to modify and do the following:

• To change 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 to be used in applying the option, select a rule from the Rule pull-down list. The rules listed in the Rule pull-down list apply only to multi-instance options and apply to all instances of the option.
  
  
  • 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.

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Note An error message appears if you specify both the replace and append rule for a multi-instance option within the same option set.

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• 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.

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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 the options for the option set. The list does not contain options for which a suppress rule is already specified.

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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 Edit CMTS Group Options page redisplays with the changes visible.

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

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 CMTS Group.

Step 4 On the CMTS Group Option Sets List page, locate the name of the CMTS group option set containing the CMTS group option you want to remove and click its hypertext link.

Step 5 On the Edit CMTS Group Option Set page, do one of the following:

• To remove an option that applies to all service types and levels, click Common Options.

• To remove an option that applies to a specific service type and level, select a service type from the Service Type pull-down list and click Type/Level Options.

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Note You must select a service type before you click Type/Level Options. If you do not, an error message appears asking you to make the selection.

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Step 6 On the Edit CMTS Group 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.