You can specify up to 32 characters for a host group name or an ID group name. However, the following conditions must be satisfied:

• The following characters may not be used: ! " % ' * . / : < > ? @ / |
• Spaces may not be used.
• Because group names are not case-sensitive, you may not use a name that duplicates another name when uppercase letters are changed to lowercase (and vice versa).

You can create a maximum of seven hierarchical levels for the host groups. The total number of characters in the host group names or host names starting from the top host group to the bottom host group (including the leading delimiter for each host group name) and to the last host name (including the leading delimiter of the host name) cannot exceed 255 bytes.