Cabletron Systems 802.1Q - Manual (Page 67)

802.1Q VLAN User’s Guide 4-1
CHAPTER 4
EXAMPLES
This chapter provides examples of how VLAN aware SmartSwitches can
be configured to group users at the port level to create VLANs in existing
networks. Each example presents a problem and shows how it is solved
by configuring the switches using the VLAN Local Management screens.
The actual procedures and screens used to configure a VLAN aware
switch are covered in
Chapter 3 , VLAN Configuration . Also provided in
the discussion of each example is a description of how the frames
transmitted from one user would traverse the network to its target device.
4.1 EXAMPLE 1, SINGLE SWITCH OPERATION
This first example looks at the configuration of a single Ethernet switch
for VLAN operation. In this example, two groups of three users are to be
assigned to two VLANs to isolate them from one another. The blue users
(B1, B2, B3) are to be kept completely separate from the red users (R1,
R2, R3).
Figure 4-1 shows the initial state of the switch.
Figure 4-1 Example 1, Single Switch Operation
1
3 6
2
4
5
B2
B1
B3 R1
R2
R3
802.1Q Switch
2263_11