Sun Microsystems 806-2989-10, Инструкция по установке и эксплуатации

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C H A P T E R
5
Configuring VLANs
This chapter explains VLANs in detail and provides configuration instructions and
examples.
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VLANs: Virtual Local Area Networks (VLANs) are commonly used to split up
groups of network users into manageable broadcast domains, to create logical
segmentation of workgroups, and to enforce security policies among each logical
segment. With multiple VLANs on an adapter, a server with a single adapter can
have a logical presence on multiple IP subnets. By default, 512 VLANs can be
defined for each VLAN-aware adapter on your server. However, this number can
be increased by changing the system parameters. VLANs are currently supported
for gigabit mode only.
If your network does not require multiple VLANs, you can use the default
configuration, in which case no further configuration is necessary.
Note – If you did not install the VLAN packages when you installed the driver, you
must unconfiguration all ce networking interfaces and unload the driver before you
can configure VLAN.
An Overview of VLANs
VLANs allow you to split your physical LAN into logical subparts, providing an
essential tool for increasing the efficiency and flexibility of your network.
VLANs are commonly used to separate groups of network users into manageable
broadcast domains, to create logical segmentation of workgroups, and to enforce
security policies among each logical segment. Each defined VLAN behaves as its
own separate network, with its traffic and broadcasts isolated from the others,
increasing the bandwidth efficiency within each logical group.