HP StorageWorks 2.64 Director Switch - Manual (Page 72)

Configuring the Product
72 Embedded Web Server User Guide
■ “ Domain RSCNs and the Enterprise Fabric Mode ” on page 73
■ “ Insistent Domain Identification (ID) and the Enterprise Fabric Mode ” on
page 73
Fabric Binding and the Enterprise Fabric Mode
Fabric Binding is a SANtegrity Binding feature that prohibits switches and
directors from communicating with switches or directors that are not part of the
fabric. Refer to “
Configuring Fabric Binding ” on page 63 for details on
configuring Fabric Binding.
When the Enterprise Fabric Mode is enabled, Fabric Binding is enabled
automatically. The fabric members that are currently attached to the product are
added automatically to the active Fabric Binding Membership List (active
FBML), a list of switches and directors that are allowed to communicate with the
product. Therefore, when Enterprise Fabric Mode is enabled, the fabric members
that are currently attached to the product participate in Fabric Binding. To add
other fabrics to the active FBML, see “
Configuring the Pending FBML ” on
page 67.
Switch Binding and the Enterprise Fabric Mode
Switch Binding is a SANtegrity Binding feature that enables switches or directors
to communicate only with devices that are listed on the Switch Binding
Membership List (SBML). When the Enterprise Fabric Mode is enabled, Switch
Binding is also enabled. You need to configure the SBML, which specifies the
devices with which the switch or director can communicate. Refer to
“
Configuring Fabric Binding ” on page 63 for details on configuring Switch
Binding.
Rerouting Delay and the Enterprise Fabric Mode
Rerouting Delay ensures that frames are delivered through the fabric to their
destination in the correct order, even if the path changes. If traffic to a particular
destination is going to be rerouted over a shorter path, the rerouting delay function
prevents new traffic from being released before the existing traffic arrives at its
destination.
If a change to the fabric topology creates a new path (for example, a new switch is
added to the fabric), frames may be routed over this new path if its hop count is
less than a previous path with a minimum hop count. This situation could result in
frames being delivered to a destination out of order because frames sent over a
new, shorter path may arrive before frames sent previously using the older, longer
path.