Understanding the Cisco IP Phone Concepts and Registration - CCNA Voice 640-461 - page 55

Trunk

VLAN_GRAY
172.16.1.0/24

VLAN_WHITE
172.16.2.0/24 VLAN_GRAY

172.16.1.0/24

VLAN_WHITE
172.16.2.0/24

Figure 3-4

VLANs Move Between Switches

Source
IP
Address

Destination
IP
Address

Source
MAC
Address

Destination
MAC
Address

TCP
Ports

VLAN
Tag

Data

3

2

SwitchA SwitchB

Fa0/24 Trunk Fa0/24

4

1

HostB HostD

HostA HostC

Key
To p i c

Figure 3-5 VLAN Tags