Brocade Fabric OS Administrator's Guide Supporting Fabric OS v6.3.0 (53-1001336-02, November 2009)

Fabric OS Administrator’s Guide 65
53-1001336-02
Frame order delivery
4
DLS is set
switch:admin> dlsreset
switch:admin> dlsshow
DLS is not set
Static route assignment
A static route can be assigned only when the active routing policy is port-based routing. When
exchange-based routing is active, you cannot assign static routes.
Static routes are supported only on the Brocade 4100 and 5000 platforms.
Static routes are not supported on the Brocade 300, 4900, 5410, 5424, 5450, 5460, 5470, 5480,
5100, 5300, 5424, 7500, 7500E, 7600, 7800 and 8000 switches, and the Brocade 48000 or
Brocade DCX or DCX-4S enterprise-class platforms. Instead, use the traffic isolation feature to
create a dedicated path for interswitch traffic. See “Traffic Isolation Routing” on page 402 for
information about this feature.
Assigning a static route
1. Connect to the switch and log in as admin.
2. Enter the uRouteConfig command.
Example of configuring a route
The following example shows how to configure a static route for all traffic coming in from port 1 and
addressed to domain 2 to go through port 5:
switch:admin> urouteconfig 1 2 5
done.
Removing a static route
1. Connect to the switch and log in as admin.
2. Enter the uRouteRemove command.
Frame order delivery
The order of delivery of frames is maintained within a switch and determined by the routing policy
in effect. The frame delivery behaviors for each routing policy are:
• Port-based routing
All frames received on an incoming port destined for a destination domain are guaranteed to
exit the switch in the same order in which they were received.
• Exchange-based routing
All frames received on an incoming port for a given exchange are guaranteed to exit the switch
in the same order in which they were received. Because different paths are chosen for
different exchanges, this policy does not maintain the order of frames across exchanges.
If even one switch in the fabric delivers out-of-order exchanges, then exchanges are delivered to the
target out-of-order, regardless of the policy configured on other switches in the fabric.