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When port security is enabled, you cannot enable 802.1X or MAC authentication, or change the
access control mode or port authorization state. Port security automatically modifies these settings in
different security modes.
To enable port security:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable port security.
port-security enable
By default, port security is
disabled.
You can use the
undo port-security enable
command to disable port security. Because the
command logs off the online users, make sure no online users are present.
Enabling or disabling port security resets the following security settings to the default:
•
802.1X access control mode is MAC-based.
•
Port authorization state is auto.
For more information about 802.1X authentication and MAC authentication configuration, see
"
Configuring MAC authentication
Setting port security's limit on the number of
secure MAC addresses on a port
You can set the maximum number of secure MAC addresses that port security allows on a port for
the following purposes:
•
Controlling the number of concurrent users on the port.
For a port operating in a security mode (except for autoLearn and secure), the upper limit
equals the smaller of the following values:
{
The limit of the secure MAC addresses that port security allows.
{
The limit of concurrent users allowed by the authentication mode in use.
•
Controlling the number of secure MAC addresses on the port in autoLearn mode.
The port security's limit on the number of secure MAC addresses on a port is independent of the
MAC learning limit described in MAC address table configuration. For more information about MAC
address table configuration, see
Layer 2—LAN Switching Configuration Guide
.
To set the maximum number of secure MAC addresses allowed on a port:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Set the maximum number of
secure MAC addresses
allowed on a port.
port-security max-mac-count
max-count
[
vlan
[
vlan-id-list
] ]
By default, port security does not
limit the number of secure MAC
addresses on a port.
The
vlan
[
vlan-id-list
] option
takes effect only on a port that
operates in autoLearn mode.
If you do not specify the
vlan
[
vlan-id-list
] option, this
command sets the maximum
number of secure MAC addresses
Summary of Contents for FlexFabric 5940 SERIES
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