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Manual Chapter: Managing Object Types
Manual Chapter
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Overview: Object classification

Before sending a response to a client, the BIG-IP system enters an informational X-WA-Info response header into the response to describe how it handled the response. You cannot change these informational headers, and they do not affect processing, however, they can provide useful information for evaluating the efficiency of your acceleration policies.

Part of the information included in the X-WA-Info response header is the object type. The BIG-IP system classifies, by object type and group, every response it receives from the origin web servers. The object type and group classification determine how the BIG-IP system handles compression for the response.

Task summary for managing object types

Perform these tasks to manage predefined and user-defined object types.

Task summary

Creating a user-defined object type

You can create an object type with custom parameters that determine how the BIG-IP system manages the specified object type.
  1. On the Main tab, click Acceleration > Web Application > Policies .
    The Policies screen displays a list of existing acceleration policies.
  2. Click Object Types.
  3. Click Create.
  4. In the Description field, type a description.
  5. In the Object Type field, type a name.
  6. In the Group list, select a group.
  7. Click Add, and, in the field, type an extension, omitting any leading period.
    Click Add again to add another extension.
  8. Click Add, and, in the field, type a MIME-type, for example, application/rtf.
    Click Add again to add another MIME-type.
  9. In the Client Compression list, select a compression setting.
  10. In the Symmetric Compression list, specify whether to compress the object type in a symmetric configuration.
  11. Click Save.
The new object type appears in the User-defined Object Types table and the BIG-IP system applies the new object type to all acceleration policies.

Editing an object type

You can modify an existing object type and enable the BIG-IP system to apply the object type changes globally to all acceleration policies.
  1. On the Main tab, click Acceleration > Web Application > Policies .
    The Policies screen displays a list of existing acceleration policies.
  2. Click Object Types.
  3. Click the name of an object type.
  4. Do the following to edit extensions, as applicable:
    1. Click Add to add an extension, and, in the field, type an extension, omitting any leading period.
    2. Click Delete to delete an extension.
    3. Edit an extension in the applicable field.
  5. Do the following to edit a MIME-type, as applicable:
    1. Click Add, and, in the field, type a MIME-type, for example, application/rtf.
    2. Click Delete to delete a MIME-type.
    3. Edit a MIME-type in the applicable field.
  6. Click Save.
The BIG-IP system applies the object type changes to all acceleration policies.

Deleting a user-defined object type

You can permanently delete a user-defined object type.
  1. On the Main tab, click Acceleration > Web Application > Policies .
    The Policies screen displays a list of existing acceleration policies.
  2. Click Object Types.
  3. Select the check box next to the user-defined object type that you want to delete.
  4. Click Delete.
The user-defined object type is permanently deleted.
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