Blackbox 3-Slot 24 Fast Ethernet + 2 Gigabit L2 Managed Switch with Redundant Power, User Manual

Page: 77 / 255

User Manual
Publication date: March, 2006
Revision A2
69
3-6. VLAN
The switch supports Tag-based VLAN (802.1q) and Port-based VLAN
.
Support 256 active VLANs and VLAN ID 1~4094. VLAN configuration is used to
partition your LAN into small ones as your demand. Properly configuring it, you can
gain not only improving security and increasing performance but greatly reducing
VLAN management.
3-6-1. VLAN Mode
Function name:
VLAN Mode Setting
Function description:
The VLAN Mode Selection function includes two modes: Port-based and Tag-
based, you can choose one of them by pulling down list and pressing the
<Downward> arrow key. Then, click <Apply> button, the settings will take
effect immediately.
Parameter description:
VLAN Mode:
Tag-based:
This is the default setting.
Tag-based VLAN identifies its member by VID. This is quite
different from port-based VLAN. If there are any more rules in
ingress filtering list or egress filtering list, the packet will be
screened with more filtering criteria to determine if it can be
forwarded. The switch supports supplement of 802.1q..
Each tag-based VLAN you built up must be assigned VLAN name
and VLAN ID. Valid VLAN ID is 1-4094. User can create total up to
256 Tag VLAN groups.
Port-based:
Port-based VLAN is defined by port. Any packet coming in or
outgoing from any one port of a port-based VLAN will be accepted.
No filtering criterion applies in port-based VLAN. The only criterion
is the physical port you connect to. For example, for a port-based
VLAN named PVLAN-1 contains port members Port 1&2&3&4. If
you are on the port 1, you can communicate with port 2&3&4. If you
are on the port 5, then you cannot talk to them. Each port-based
VLAN you built up must be assigned a group name. This switch can
support up to maximal 26 port-based VLAN groups.