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Optional Configuration

Your IntraServer Technology ITI-5100G/GF 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. Up to 64 VLANs can be defined for each ITI-5100G/GF adapter on your server

•Jumbo Frames: Standard Ethernet frames are 1,500 bytes long. When sending Ethernet traffic at Gigabit speeds, a considerable portion of the bandwidth is consumed by the overhead of handling a multitude of small packets. ITI- 5100G/GF adapters support Ethernet frames of 9,000 bytes. Host CPU utilization is significantly reduced and network throughput is enhanced when enabling Jumbo Frames between servers that have ITI-5100G/GF adapters and switches that support Jumbo Frames.

•Dual Homing: Two ITI-5100G/GF 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 switchover, causing minimum impact to network traffic.

This chapter describes these options in detail, with configuration instructions and examples. If your network does not require VLANs, Jumbo Frames, or Dual Homing, you need only configure the adapter to support the default configuration, as described in “The ITI-5100G/GF Driver Software”.

LSI Logic Corporation

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