# Service Group List

A service group is a set of services that you assembled together under one name. Once you create a group containing several services, you can then apply services at the group level to policies, thus simplifying administration.

The Service Group option has the following features:

- Each service group entry can be referenced by one or more service groups.

- Each service group can contain pre-defined and user-defined Service Book entries.

- Each service group can be referenced by other service groups, providing that a group referencing other groups does not include itself in the reference list.

- Service groups are subject to the following limitations:

- Service groups cannot have the same names as services. Therefore, if you have a service named "FTP," you cannot have a service group named "FTP".

- If a service group is referenced in a policy, you can edit the group but you cannot remove it until you have first removed the reference to it in the policy.

- If a custom Service Book entry is deleted from the Service Book, the entry is also removed from all the groups in which it was referenced.

- The static service ANY cannot be added to groups.

- A service can be part of only one group at a time.

## Viewing the Service Group List

This table lists all the service groups created on the NetScreen device and contains the following information about each one:

Group Name: Indicates the name of the service group.

Members: Indicates which services are part of the group.

Comment: This field is optional and may or may not contain any information.

Configure: Click Edit to modify the entry, or click Remove to delete it.

### To Create a Service Group

To create a service group, click New. For more information, see Service Group Configuration.

### To Modify a Service Group

1. In the Configure column, click Edit for the service that you want to modify.

The Service Group configuration page appears.

2. Enter the new information, and then click OK to save your changes.

### To Remove a Service Group

1. In the Configure column, click Remove for the service that you want to delete.

A system message prompts your to confirm the removal.

2. Click Yes to remove the service, or No to cancel.