Supported Platforms
Configuring the RADIUS NAS-Port Extended Format for ATM Interfaces
As an alternative to globally configuring an extended format for the NAS-Port (5) RADIUS attribute in an access profile, you can configure the NAS-Port extended format on a per-physical interface basis for both Ethernet subscribers and ATM subscribers as part of a NAS-Port options definition. The NAS-Port extended format configures the number of bits (bit width) in each field of the NAS-Port attribute, including: slot, adapter, port, ATM virtual path identifier (VPI), and ATM virtual circuit identifier (VCI).
To configure the NAS-Port extended format for an ATM interface, include one or both of the following options in the nas-port-extended-format statement along with the other options as appropriate for your needs:
- vpi-width—Number of bits in the ATM VPI field, in the range 1 through 32
- vci-width—Number of bits in the ATM VCI field, in the range 1 through 32
 | Note: For ATM subscribers, the combined total of the widths of all fields must not exceed 32 bits, or the configuration fails. The router may truncate the values of individual fields depending on the bit width you specify. |
To configure an extended format for the NAS-Port RADIUS attribute for an ATM interface:
- Specify the ATM interface you want to configure.[edit]user@host# edit interfaces interface-name
- Specify that you want to configure RADIUS options for
a physical interface.[edit interfaces interface-name]user@host# edit radius-options
- Create a named NAS-Port options definition.[edit interfaces interface-name radius-options]user@host# edit nas-port-options nas-port-options-name
- Configure the NAS-Port extended format.[edit interfaces interface-name radius-options nas-port-options nas-port-options-name]user@host# set nas-port-extended-format slot-width width adapter-width width port-width width vpi-width width vci-width width
The following example shows a NAS-Port options definition named boston-subscribers for ATM interface at-1/0/4 that configures a NAS-Port extended format with an ATM slot width of 6 bits, ATM adapter width of 3 bits, ATM port width of 4 bits, ATM VPI width of 12 bits, and ATM VCI width of 24 bits.
