Alloy AS5010-P, Руководство пользователя

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AS Series User Manual
87
Doc No.: AS5-0116-01
Port Configuration
Parameter Description
Port Physical port of the switch.
Mode
Controls whether Limit Control is enabled on this port. Both this and the
Global Mode must be set to Enabled for Limit Control to be in effect. Notice
that other modules may still use the underlying port security features without
enabling Limit Control on a given port.
Limit The maximum number of MAC addresses that can be secured on this port. This
number cannot exceed 1024. If the limit is exceeded, the corresponding action
is taken.
The switch is "born" with a total number of MAC addresses from which all
ports draw whenever a new MAC address is seen on a Port Security-enabled
port. Since all ports draw from the same pool, it may happen that a configured
maximum cannot be granted, if the remaining ports have already used all
available MAC addresses.
Action If Limit is reached, the switch can take one of the following actions: None: Do
not allow more than Limit MAC addresses on the port, but take no further
action.
Trap: If Limit + 1 MAC addresses is seen on the port, send an SNMP trap. If
Aging is disabled, only one SNMP trap will be sent, but with Aging enabled,
new SNMP traps will be sent every time the limit is exceeded.
Shutdown: If Limit + 1 MAC addresses is seen on the port, shut down the port.
This implies that all secured MAC addresses will be removed from the port,
and no new address will be learned. Even if the link is physically disconnected
and reconnected on the port (by disconnecting the cable), the port will remain
shut down. There are three ways to re-open the port: 1) Reboot the switch. 2)
Disable and re-enable Limit Control on the port or the switch. 3) Click the
Reopen button.
Trap & Shutdown: If Limit + 1 MAC addresses is seen on the port, both the
"Trap" and the "Shutdown" actions described above will be taken.
State This column shows the current state of the port as seen from the Limit
Control's point of view. The state takes one of four values:
Disabled: Limit Control is either globally disabled or disabled on the port.
Ready: The limit is not yet reached. This can be shown for all actions.
Limit Reached: Indicates that the limit is reached on this port. This state can