Switch User Manual

POEFEM24T2SFP User Manual
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Alloy Computer Products Pty Ltd Copyright ©2006
3-7. VLAN (Virtual Local Area Network)
The POEFEM24T2SFP supports both 802.1q Tagged based VLAN’s and Port-based VLAN’s.
VLAN’s are used to logically separate your network into smaller more defined networks. VLAN’s
help to reduce broadcast traffic across your network as all broadcast traffic will be limited to the
VLAN group in which it belongs. A typical example of where a VLAN could be used is in a school
environment where the teacher and student networks must be kept separate. The switch
supports up to 256 active VLAN entries and a VLAN ID ranging from 1 – 4096.
3-7-1. VLAN Mode
Fig. 3-23
Function name:
VLAN Mode
Function description:
The POEFEM24T2SFP supports 2 different VLAN modes including, Port-Based and
Tag-based. Select the desired VLAN mode from the drop down box and click the Apply
button. Changes will take effect immediately.
Default: Tag-based
Parameters description:
Tag-based:
Tag-based VLAN’s identify members by its VID. A VID can be applied to a packet
from a host machine that supports 802.1q or from the switch itself when a packet
is sent from the switch. Ingress and Egress rules can also be applied to each
port to identify how a packet is handled. The switch will accept both tagged and
un-tagged packets depending on the ingress rules that have been defined. Rules
can be created to allow only incoming packets to be tagged; however when this
Rule is applied any untagged packets will be dropped.
Each tag-based VLAN you build must have a VLAN name and VLAN ID. Valid
VLAN ID’s range from 1 – 4096. The maximum number of tag-based VLAN
groups that can be created is 256.