Brocade Web Tools Administrator's Guide - Supporting Fabric OS v7.0.0 (53-1002152-01, March 2012)

Web Tools Adminstrator’s Guide 169
53-1002152-01
Chapter
15
Routing Traffic
In this chapter
•Routing overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
•Viewing fabric shortest path first routing. . . . . . . . . . . . . . . . . . . . . . . . . . . 170
•Configuring dynamic load sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
•Specifying frame order delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
•Configuring the link cost for a port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Routing overview
NOTE
To perform routing operations and Dynamic Load Sharing (DLS) configurations, the EGM license
must be installed on the switch; otherwise, access to these features is denied and an error message
displays.
For Fabric OS v7.0.0, the supported routing policies are:
• Port-based routing — Port-based routing assigns a “static route,” in which the path chosen for
traffic never changes.
• Exchanged-based routing — Exchange-based routing policy is the default. Exchange-based
routing policy always employs “dynamic path selection,” in which the software defines a path
based on current traffic conditions.
Refer to the Fabric OS Administrator’s Guide for more information.
To optimize port-based routing, the DLS can be enabled to balance the load across the available
output ports within a domain. Exchange-based routing requires the use of DLS; when this policy is
in effect, you cannot disable the DLS feature.