GE DS-82 - Manual (Page 125)

Chapter 4: Web-Based Management
GE-DS-82 and 82-PoE Ethernet Managed Switch User Manual 121
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
are 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 84: 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).