Viewing And Configuring Fcr Router Port Cost - Brocade Communications Systems A7990A - StorageWorks SAN Director 4/16 Blade Switch Administrator's Manual

11
To edit the configuration of an EX_Port
1. Launch the FC Routing module.
2. Click the EX_Ports tab.
3. Select a port to configure, by clicking in the row.
4. Click Edit Configuration in the task bar.
This launches the port configuration wizard, which guides you through the port configuration
process.
The current configuration values are displayed in the wizard steps.
If you choose to configure a disabled port, the wizard provides the Enable Port after
configuration checkbox (shown in
automatically enabled after configuration. If you leave this box unchecked, the port remains in the
same state after configuration.
Figure 11-5 EX_Port Configuration Wizard

Viewing and Configuring FCR Router Port Cost

In FCR, EX_Ports can be assigned router port cost. The cost of the link is a positive number. The router
port path or tunnel path is chosen based on the minimum cost per connection. If multiple paths exist
with the same minimum cost, there will be load sharing over these paths. If multiple paths exist where
one path costs lower than the others, then the lowest cost path is used.
Every link has a default cost. For an EX_Port 2Gb/sec link, the default cost is 500. For an EX_Port 1Gb/
sec link, the default cost is 1000. For a VEX_Port, the default cost is 2000. If the cost is set to 0, the
default cost will be used for that link.
11-8
Figure 11-5). If you check this box, the disabled port is
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