Cabletron Systems manual Chapter Examples, R1 R2 R3, 802.1Q Switch, B3 B2 B1

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.

4.1EXAMPLE 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 4-1shows the initial state of the switch.

R1

R2

R3

802.1Q Switch

1	4
2
	5
3
	6

B3

B2

B1

2263_11

Figure 4-1 Example 1, Single Switch Operation

802.1Q VLAN User’s Guide 4-1