Extreme Networks ExtremeWare XOS 11.0, Command Reference Manual

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198 ExtremeWare XOS 11.0 Command Reference Guide
Commands for Configuring Slots and Ports on a Switch
disable learning port
disable learning port [<port_list> | all]
Description
Disables MAC address learning on one or more ports for security purposes.
Syntax Description
Default
Enabled.
Usage Guidelines
On a modular switch,
<port_list>
can be a list of slots and ports. For a detailed explanation of port
specification, see “Modular Switch Numerical Ranges” in Chapter 1.
If MAC address learning is disabled, only broadcast traffic, EDP traffic, and packets destined to a
permanent MAC address matching that port number, are forwarded.
Use this command in a secure environment where access is granted via permanent forwarding
databases (FDBs) per port.
Example
The following command disables MAC address learning on port 4:3 on a modular switch:
disable learning ports 4:3
History
This command was first available in ExtremeWare XOS 10.1.
port_list Specifies one or more slots and ports. On a modular switch, can be a list of
slots and ports. May be in the form 3-5, 2:*, 2:5, 2:6-2:8.
all Specifies all ports and slots