McDATA 3000 manual Fail Over, Load Balancing Path for 2x2 Configurations

Dedicated Path for 1x1 Configurations

Dedicated Path for 2x2 Configurations

Load Balancing

Load Balancing Path for 2x2 Configurations

Fail Over

Network Routing Options

Channel is sequenced separately. Therefore, link quality on a single link will not affect the other while they are running.

This is the only selectable option for 1x1 configurations.

•UltraNet Edge 3000 Fibre Channel interface 2 uses UltraNet Edge 3000 WAN interface 3

•UltraNet Edge 3000 Fibre Channel interface 1 uses UltraNet Edge 3000 WAN interface 3

•UltraNet Edge 3000 Fibre Channel interface 2 uses UltraNet Edge 3000 WAN interface 4

If Load Balancing is selected, both links are used in tandem to nearly double the effective throughput available to the active Fibre Channel interfaces. Each Fibre Channel interface has sequencing through its own virtual circuit. Load Balancing runs best when both WAN links are of equal quality in terms of latency, bandwidth, and reliability.

Due to the sequencing of data frames on the virtual circuit, when one of the links is running at significantly lower quality, the link running at a higher quality will perform similar to the lower quality link.

When load balancing over two circuits, there should be no more than 25% difference in latency, bandwidth, and reliability between the two circuits.

This option functions the same for both FC/IP and Fibre Channel Switch interfaces. It is only selectable for 2x2 configurations.

•UltraNet Edge 3000 Fibre Channel interface 2 uses UltraNet Edge 3000 WAN interfaces 3 & 4

•UltraNet Edge 3000 Fibre Channel interface 1 uses UltraNet Edge 3000 WAN interfaces 3 & 4

If Fail Over is selected for an FC/IP interface, each FC/IP interface is configured with a primary WAN to route its traffic over. If the primary WAN has an outage, the traffic is rerouted over the secondary path.

If this option is selected for a Fibre Channel Switch interface, both ports will use the same primary WAN for routing the traffic. The other remaining WAN will serve as the secondary route if the primary WAN has an outage.

Network Design Criteria 3-9

3