Optional Configurations - Sun Microsystems GigabitEthernet PCI Adapter User Manual

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C H A P T E R

Optional Configurations

Your Sun GigabitEthernet PCI adapter can be configured to support the following
options:
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.
have a logical presence on multiple IP subnets. Up to 64 VLANs can be defined for
each Sun GigabitEthernet PCI adapter on your server.
Dual Homing: Two Sun GigabitEthernet adapters on a server can be paired for
redundant operation through the use of the Dual Homing feature. If traffic on a
primary connection is lost due to the failure of the adapter, cable, switch port, or
switch (when the dual adapters are attached to separate switches), the secondary
adapter becomes active and assumes the MAC and IP address of the primary
adapter. Network sessions should be maintained after the switch-over, causing
the minimum impact to the user.
If your network does not require multiple VLANs or Dual Homing, you may use the
default configuration, in which case no further configuration is necessary.
The following sections explain these options in detail, and provide configuration
instructions and examples for each.
Note – If you change any of the optional configuration parameters (VLAN or Dual
Homing), you must reboot the system before the changes will take effect. If you
make changes and do not reboot, you may experience configuration problems.
With multiple VLANs on an adapter, a server with a single adapter can
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