ZyXEL GS1510-24 User Guide - Page 63

Overview, What You Can Do, What You Need to Know

Page 63 highlights

CHAPTER 10 VLAN 10.1 Overview This chapter shows you how to configure IEEE 802.1Q tagged VLANs and portbased VLANs. 10.2 What You Can Do • Use the Port Isolation screen (Section 10.4 on page 64) to specify which ports can communicate with each other. • Use the VLAN Settings screen (Section 10.5 on page 67) to configure a VLAN and assign member ports. • Use the Tag Settings screen (Section 10.6 on page 68) to add a VLAN ID tag to all outgoing frames on a member port. • Use the Port Settings screen (Section 10.7 on page 69) to configure the VLAN port settings. 10.3 What You Need to Know 10.3.1 Introduction to IEEE 802.1Q Tagged VLANs A tagged VLAN uses an explicit tag (VLAN ID) in the MAC header to identify the VLAN membership of a frame across bridges - they are not confined to the switch on which they were created. The VLANs can be created statically by hand or dynamically through GVRP. The VLAN ID associates a frame with a specific VLAN and provides the information that switches need to process the frame across the network. A tagged frame is four bytes longer than an untagged frame and contains two bytes of TPID (Tag Protocol Identifier, residing within the type/length field of the Ethernet frame) and two bytes of TCI (Tag Control Information, starts after the source address field of the Ethernet frame). GS1510 Series User's Guide 63

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GS1510 Series User’s Guide
63
C
HAPTER
10
VLAN
10.1
Overview
This chapter shows you how to configure IEEE 802.1Q tagged VLANs and port-
based VLANs.
10.2
What You Can Do
Use the
Port Isolation
screen (
Section 10.4 on page 64
) to specify which ports
can communicate with each other.
Use the
VLAN Settings
screen (
Section 10.5 on page 67
) to configure a VLAN
and assign member ports.
Use the
Tag Settings
screen (
Section 10.6 on page 68
) to add a VLAN ID tag to
all outgoing frames on a member port.
Use the
Port Settings
screen (
Section 10.7 on page 69
) to configure the VLAN
port settings.
10.3
What You Need to Know
10.3.1
Introduction to IEEE 802.1Q Tagged VLANs
A tagged VLAN uses an explicit tag (VLAN ID) in the MAC header to identify the
VLAN membership of a frame across bridges - they are not confined to the switch
on which they were created. The VLANs can be created statically by hand or
dynamically through GVRP. The VLAN ID associates a frame with a specific VLAN
and provides the information that switches need to process the frame across the
network. A tagged frame is four bytes longer than an untagged frame and
contains two bytes of TPID (Tag Protocol Identifier, residing within the type/length
field of the Ethernet frame) and two bytes of TCI (Tag Control Information, starts
after the source address field of the Ethernet frame).