Specifications

disable learning port
ExtremeWare XOS 10.1 Command Reference Guide 165
disable learning port
disable learning port <port_list>
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” or “Line-Editing Keys” 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.
Learning must be disabled to allow port flooding. See the enable flooding command for information
on enabling port flooding.
Example
The following command disables MAC address learning on port 4:3 on a modular switch:
disable learning ports 4:3
port_list Specifies one or more ports or slots and ports. On a modular switch, can be a
list of slots and ports. May be in the form 1, 2, 3-5, 2:*, 2:5, 2:6-2:8.