219
Type
Address sources
Aging mechanism
Can be saved and
survive a device
reboot?
Sticky
•
Manually added (by
using the
port-security
mac-address
security
command with the
sticky
keyword).
•
Converted
from
dynamic secure MAC
addresses.
•
Automatically
learned
when the dynamic
secure MAC feature is
disabled.
By default, sticky MAC addresses do
not age out. However, you can
configure an aging timer or use the
aging timer together with the inactivity
aging feature to remove old sticky MAC
addresses.
•
If only the aging timer is
configured, the aging timer counts
up regardless of whether traffic
data has been sent from the sticky
MAC addresses.
•
If both the aging timer and the
inactivity aging feature are
configured, the aging timer restarts
once traffic data is detected from
the sticky MAC addresses.
Yes.
The secure MAC
aging timer restarts at
a reboot.
Dynamic
•
Converted from sticky
MAC addresses.
•
Automatically
learned
after the dynamic
secure MAC feature is
enabled.
Same as sticky MAC addresses.
No.
All dynamic secure
MAC addresses are
lost at reboot.
When the maximum number of secure MAC address entries is reached, the port changes to secure
mode. In secure mode, the port cannot add or learn any more secure MAC addresses. The port
allows only frames sourced from secure MAC addresses or MAC addresses configured by using the
mac-address dynamic
or
mac-address static
command to pass through.
Configuration prerequisites
Before you configure secure MAC addresses, complete the following tasks:
•
Enable port security.
•
Set port security's limit on the number of MAC addresses on the port. Perform this task before
you enable autoLearn mode.
•
Set the port security mode to autoLearn.
•
Configure the port to permit packets of the specified VLAN to pass or add the port to the VLAN.
Make sure the VLAN already exists.
Configuration procedure
To configure a secure MAC address:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
(Optional.) Set the
secure MAC aging
timer.
port-security timer autolearn aging
time-value
By default, secure MAC
addresses do not age out.
3.
Configure a secure
MAC address.
•
In system view:
port-security
mac-address
security
[
sticky
]
mac-address
interface
interface-type
By default, no manually
configured secure MAC
addresses exist.
Содержание FlexFabric 5940 SERIES
Страница 251: ...238 ...