User guide
Table Of Contents
- Part1
- Part2
- Part2
- Part3
- Part4
- Part5
- Dynamic Link Aggregation
- Link Aggregation ID
- RADIUS
- Configuring RADIUS Server Settings
- Configuring IEEE802.1x
- Supported MIBs
- SNMP Traps
- Configuring SNMP
- Setting Up Login Accounts
- Requirements for Using SSH
- HTTPS Example
- Internet Explorer Warning Messages
- Netscape Navigator Warning Messages
- Login Screen
- Strict Priority Queuing (SPQ)
- Weighted Round Robin Scheduling (WRR)
- DiffServ
- DSCP and Per-Hop Behavior
- DHCP “Relay Agent Information Option”
- DHCP Relay Agent Circuit ID Sub-option Format
- Part6
- Part7
- Switch Configuration File
- Access Priority
- The Console Port
- Telnet
- List of Available Commands
- Detailed Command Information
- Logging Out
- User Mode
- Enable Mode
- Configure Mode
- config-vlan Commands
- interface Commands
- show system-information
- show hardware-monitor
- show ip
- show logging
- show interface
- show mac address-table
- Backing up Configuration
- Restoring Configuration
- Using a Different Configuration File
- Resetting to the Factory Default
- no mirror-port
- no https timeout
- no trunk
- no port-access-authenticator
- no ssh
- interface
- bpdu-control
- broadcast-limit
- bandwidth-limit
- mirror
- gvrp
- ingress-check
- frame-type
- vlan-trunking
- spq
- wrr
- egress set
- qos priority
- name
- speed-duplex
- Static Entries (SVLAN Table)
- Dynamic Entries (DVLAN Table)
- GARP Status
- GARP Timer
- GVRP Timer
- Enable GVRP
- Disable GVRP
- Set Port VID
- Set Acceptable Frame Type
- Enable or Disable Port GVRP
- Modify Static VLAN
- Delete VLAN ID

Dimension GS-3012 Gigabit Ethernet Switch
16-2 Port Security
Table 16-1 Port Security
LABEL DESCRIPTION
Port This field displays a port number.
Active Select this check box to enable port security on this port.
Address Learning MAC address learning reduces outgoing broadcast traffic. For MAC address learning to occur
on a port, the port itself must be active with address learning enabled.
Limited Number of
Learned MAC
Address
Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port.
For example, if you set this field to "5" on port 2, then only the devices with these five learned
MAC addresses may access port 2 at any one time. A sixth device would have to wait until one
of the five learned MAC addresses aged out. MAC-address aging out time can be set in the
Switch Setup screen. The valid range is from “0” to “254”. “0” means this feature is disabled,
so the switch will learn MAC addresses up to the global limit of 16K.
Apply Click Apply to save your changes back to the switch.
Cancel Click Cancel to begin configuring this screen afresh.