Configuring AAA accounting methods for an ISP domain
In AAA, accounting is a separate process at the same level as authentication and authorization. This process sends accounting start/update/end requests to the specified accounting server. Accounting is optional.
AAA supports the following accounting methods:
No accounting (none)—The system does not perform accounting for the users.
Local accounting (local)—Local accounting is implemented on the NAS. It counts and controls the number of concurrent users who use the same local user account. It does not provide statistics for charging. The maximum number of concurrent users using the same local user account is set by the access-limit command in local user view.
Remote accounting (scheme)—The NAS works with a RADIUS server or HWTACACS server for accounting. You can configure local or no accounting as the backup method, which is used when the remote server is not available.
By default, an ISP domain uses the local accounting method.
Before configuring accounting methods, complete the following tasks:
For RADIUS or HWTACACS accounting, configure the RADIUS or HWTACACS scheme to be referenced first. The local and none accounting methods do not require a scheme.
Determine the access type or service type to be configured. With AAA, you can configure an accounting method for each access type and service type, limiting the accounting protocols that can be used for access.
Determine whether to configure an accounting method for all access types or service types.
Follow these guidelines when you configure AAA accounting methods for an ISP domain:
If you configure the accounting optional command, the limit on the number of local user connections is not effective.
The accounting method specified with the accounting default command is for all types of users and has a priority lower than that for a specific access type.
If you specify the radius-scheme radius-scheme-name local or hwtacacs-scheme hwtacacs-scheme-name local option when you configure an accounting method, local accounting is the backup method and is used only when the remote server is not available.
If you specify only the local or none keyword in an accounting method configuration command, the switch has no backup accounting method and performs only local accounting or does not perform any accounting.
Accounting is not supported for FTP services.
To configure AAA accounting methods for an ISP domain:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter ISP domain view. | domain isp-name | N/A |
3. Enable the accounting optional feature. | accounting optional | Optional. Disabled by default. With the accounting optional feature, a switch allows users to use network resources when no accounting server is available or communication with all accounting servers fails. |
4. Specify the default accounting method for all types of users. | accounting default { hwtacacs-scheme hwtacacs-scheme-name [ local ] | local | none | radius-scheme radius-scheme-name [ local ] } | Optional. The default accounting method is local for all types of users. |
5. Specify the command accounting method. | accounting command hwtacacs-scheme hwtacacs-scheme-name | Optional. The default accounting method is used by default. |
6. Specify the accounting method for LAN users. | accounting lan-access { local | none | radius-scheme radius-scheme-name [ local | none ] } | Optional. The default accounting method is used by default. |
7. Specify the accounting method for login users. | accounting login { hwtacacs-scheme hwtacacs-scheme-name [ local ] | local | none | radius-scheme radius-scheme-name [ local ] } | Optional. The default accounting method is used by default. |
8. Specify the accounting method for portal users. | accounting portal { local | none | radius-scheme radius-scheme-name [ local ] } | Optional. The default accounting method is used by default. |