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Autolearn Function
To simplify the definition of addresses, an autolearn mode exists where the ATM switch automatically
learns the ATM addresses that register through ILMI and stores them into the access control address
table.
The autolearn function is enabled by specifying the number of addresses per port to be learnt. If 0 is
specified, autolearning is disabled. When autolearn is enabled:
Each time a new address is learnt, the number of addresses that can be learnt is decreased by 1.
Once the value reaches 0, no further learning can take place.
Each ATM address learnt for the port is automatically added to the list of authorized addresses for this
port.
An MSS server can work with more than 16 internal addresses. When this is the case, it is advised that
you disable security on the port connected to the MSS server.
Default Values
Because ATM ports may be dynamically added to a switch (when new modules are inserted), you can set
default parameters that can be applied to newly detected ports.
Unless specified otherwise, the default settings are:
1. security: disabled
2. autolearn: disabled
3. violation trapping: disabled
4. violation logging: disabled.
To change the default values, see “Setting Default Values” on page 81.
Violation Trapping
When the security trap is enabled, an SNMP trap is sent to the network management station each time a
security violation occurs. The SNMP trap contains:
The date and time of the violation
The data that failed the security check (such as ATM address)
The interface where the violation occurred.
Violation Logging
When violation logging is enabled, the last 64 security violations are stored in a log. The contents of this
log can be displayed at the terminal, or uploaded to a server via TFTP.
This information allows a network operator to rapidly help a user determine the reason why network
access was denied.
Violation logging can be enabled either for all ports, or individual ports.
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IBM 8265: User's Guide
Summary of Contents for 8265 Nways ATM Switch
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