Chapter 4: Console Management
GE-DS-242-PoE Managed Ethernet Switch User Manual
113
MAC Limit
MAC limit allows users to set a maximum number of MAC addresses to be stored
in the MAC address table. The MAC addresses chosen to be stored in MAC
address table is the result of first-come-first-save policy. Once a MAC address is
stored in the MAC address table, it stays in until it is aged out. When an
"opening" is available, the switch stored the first new MAC address it sees in that
opening. All packets from MAC addresses not in the MAC address table should
be blocked.
MAC Limit Configuration
The Layer 2 MAC Limit function can be per-port configured for security
management purposes. When the port is in MAC Limit mode, the port will be
"locked" without permission of address learning. Only the incoming packets with
Source MAC already existing in the address table can be forwarded normally.
User can disable the port from learning any new MAC addresses.
Figure 4-61: MAC Limit - Configure MAC Limit
This page includes the following fields:
OBJECT
DESCRIPTION
MAC Limit
Enable or disable MAC limit function for the Managed Switch.
Port Number
Indicate port 1 to port 26.
Limit
The maximum number of per-port MAC addresses to be learned
(1-64, 0 to disable this port's MAC limit function).
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