Configuring RADIUS Network Elements

date_range 13-Jan-21

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A network element is a load-balanced group of RADIUS servers providing policy management for TDF subscribers.

Before you configure a network element, you must do the following:

Configure the RADIUS servers that are to be part of the network element.

To configure a network element:

Specify a name for the network element.
```
[edit access radius]
user@host# set network-elements name
```
Specify the RADIUS servers that make up the network element.
```
[edit access radius network-elements name]
user@host# set server name
```
Assign each server in the network element a priority from 1 through 16 (1 is the highest priority). You can have multiple servers with the same priority in a network element. All access requests are load balanced among the highest priority servers. If all the servers with the highest priority in the network element fail, then requests are load balanced among servers with the next highest priority level.
```
[edit access radius network-elements name server name]
user@host# set priority priority
```
Configure the maximum number of requests that can be queued to the network element. When the pending-request queue is full, any additional requests are dropped.
```
[edit access radius network-elements name]
user@host# set maximum-pending-reqs-limit number
```
Configure the pending-request queue high watermark for the network element. This is a percentage of the maximum number of requests that can be queued to the network element, which is configured in the maximum-pending-reqs-limit number statement. When the queue size reaches the high watermark, a flow control on message is generated.
```
[edit access radius network-elements name]
user@host# set pending-queue-watermark watermark
```
Configure the pending-request queue low watermark for the network element. This is a percentage of the maximum size of the pending-request queue, which is configured in the maximum-pending-reqs-limit watermark statement. When the number of pending requests drops below this low watermark value after having exceeded the high watermark, a flow control off message is generated.
```
[edit access radius network-elements name]
user@host# set pending-queue-watermark-abate abate-watermark
```

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Subscriber-Aware and Application-Aware Traffic Treatment User Guide

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