Olicom 8600, 8605 manual Vlan Configuration, Switch with four VLANs

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VLAN Configuration

The Virtual LAN feature can be used to partition a switch or a stack of switches into several Virtual LANs, each containing its own set of ports (the terms Virtual LAN and domain are interchangeable). Packets are forwarded only between ports belonging to the same. The benefit of Virtual LAN is to restrict access from one segment to another, either for security purposes or to reduce intersegment traffic. Figure 21 illustrates a switch with four VLANs.

VLAN 1

Ports 1, 2, 3, 10

VLAN 2

Ports 5, 11, 12

VLAN 3	VLAN 4
Ports 4, 7, 9	Ports 6, 8, 13, 14

Figure 21. Switch with four VLANs

To set up domains using the VLAN Configuration menu, specify the ports belonging to the domains, then set up the IP configurations, trap configuration (trap receivers are associated with a set of VLANs and a receiver IP address) and STP configurations specific to the appropriate VLANs. If you have already supplied configuration information using the main configuration menus, that information applies to VLAN “default”. Virtual LANs affects other switch features in the following ways:

•Spanning Tree Protocol (STP). If you are using STP in a certain domain, you must supply STP information for that domain. The STP software treats ports on other domains as nonexistent. Domains do not affect port priorities and port costs. You set these parameters using the STP Configuration menu that you select from the main Configuration menu.

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SNMP trap tables. Each domain appears to the network management system as a physically different Token-Ring switch unit. Certain MIB II objects and proprietary objects are domain-sensitive, while others are not. For a list of domain-sensitive objects, see Chapter 7, “Monitoring the Network with the Console”.

IP. You may give each domain an IP address, subnet mask, and gateway address definition.

CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641 Switch Configuration