User's Manual

Table Of Contents
116 Operation
Chapter 4 - Operation and Administration
Valid Shared Secret: Up to 16 printable characters, case sensitive.
The default Shared Secret is null (Shared Secret must be defined).
4.5.4.1.2 Retry Interval (sec)
The Retry Interval parameter defines the time in seconds to wait before
retransmitting a RADIUS message if no response is received.
The range is 1-5 (seconds).
The default value is 5 (seconds).
4.5.4.1.3 Maximum Number of Retries
The Maximum Number of Retries parameter defines the maximum number of
retransmission attempts, before a decision is taken to revert to another server if
configured, or give up.
The range is 0-5 (retries).
The default value is 3 (retries).
4.5.4.1.4 Keep Alive Timeout (sec)
The NPU maintains a keep alive mechanism with all defined servers. The Keep
Alive Timeout defines the time in seconds to wait before reaching a decision that a
certain server is no longer available.
The range is 60-180 (seconds).
The default value is 60 (seconds).
NOTE
For security reasons, the Shared Secret does not change after performing the Set Factory Defaults
operation. For the same reason, the Shared Secret cannot be configured using SNMP and it is not
included in backup configuration files.
NOTE
When the NPU sends keep alive message to the server, it uses it's own default User Name and
User Password.
These User Name and User Password must be configured in the users list (the same list used for
the SUs) of the server, otherwise the server will response with a reject message.
The default User Name of the NPU is: KeepAliveUserNameAndPassword.
The default User Password of the NPU is: KeepAliveUserNameAndPassword
The default User Name and User Password of the NPU are not configurable.