Opentrunking - McDATA StorageWorks 2/140 - Director Switch Planning Manual

OpenTrunking

Figure 5-8
• Switch binding - This portion of the feature allows only specified
devices and fabric elements to connect to specified director or
fabric switch ports.
• Enterprise Fabric Mode - Although Enterprise Fabric Mode is not a
keyed feature, it is required for SANtegrity Binding operation.
Enterprise Fabric Mode also enables the following parameters:
— Rerouting delay.
— Domain RSCNs.
— Insistent Domain_ID.
For additional information about the feature, refer to
Binding.
OpenTrunking is a feature that optimizes ISL bandwidth use in a
fabric environment. The feature monitors Fibre Channel data rates
(congestion and BB_Credit starvation) through multiple ISLs,
dynamically applies a Dijkstra FSPF networking algorithm to
calculate the optimum path between fabric elements, and load
balances Fibre Channel traffic (from congested links to uncongested
links) accordingly. OpenTrunking is shown in
Server 1
Server 2
Director A
Server 3
OpenTrunking
Physical Planning Considerations
SANtegrity
Figure 5-8.
Trunk
ISL 1
ISL 1
ISL 2
ISL 2
Director B
Physical Planning Considerations
5
Storage 1
Storage 2
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