Port-Based Vlan Setup - ZyXEL Communications MES3500-24S User Manual

Table 34 Advanced Application > VLAN > VLAN MAC Learning (continued)
LABEL
MAC Limit
Number
Add
Cancel
Index
Active
VID
Port
MAC Learning
MAC Limit
Number
Delete
Cancel

9.10 Port-based VLAN Setup

Port-based VLANs are VLANs where the packet forwarding decision is based on the destination MAC
address and its associated port.
Port-based VLANs require allowed outgoing ports to be defined for each port. Therefore, if you wish to
allow two subscriber ports to talk to each other, for example, between conference rooms in a hotel, you
must define the egress (an egress port is an outgoing port, that is, a port through which a data packet
leaves) for both ports.
Port-based VLANs are specific only to the Switch on which they were created.
Note: When you activate port-based VLAN, the Switch uses a default VLAN ID of 1. You
cannot change it.
Note: In screens (such as IP Setup and Filtering) that require a VID, you must enter 1 as the VID.
The port-based VLAN setup screen is shown next. The CPU management port forms a VLAN with all
Ethernet ports.
Chapter 9 VLAN
DESCRIPTION
Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port in a
specified VLAN. 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 "16384". If you enter 0 here, the
Switch automatically changes to use the maximum value (16384).
Note: You also set the MAC address learning limit in the Port Security screen. If you
configure two different limits, the Switch bases on the smaller one.
Click Add to save your changes to the Switch's run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Click Cancel to begin configuring this screen afresh.
This field displays the index number of the rule. Click an index number to change the settings.
This field displays Yes when the rule is activated and No when is it deactivated.
This field displays the ID number of the VLAN to which the port belongs.
This field displays the number of the port to which this rule is applied.
This field displays Y when the MAC address learning limit is enabled in this rule. Otherwise, it
displays N.
This is the maximum number of MAC addresses which a port can learn in a VLAN.
Check the rule(s) that you want to remove in the Delete column and then click the Delete
button.
Click Cancel to clear the Delete check boxes.
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