HP 316095-B21 FW 08.01.00 McDATA EFCM Basic User Manual (620-000240-000, Novem - Page 129

Fabric Binding and the, Enterprise Fabric, Switch Binding and, Rerouting Delay and, Configuring Fabric

Page 129 highlights

Enabling the Enterprise Fabric Mode 5 Fabric Binding and the Enterprise Fabric Mode Switch Binding and the Enterprise Fabric Mode Rerouting Delay 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 5-25 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 Member 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 Add Members to the FBML on page 5-27. 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 Switch Binding on page 5-29 for details on configuring Switch Binding. 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. If Rerouting Delay is enabled, traffic ceases in the fabric for the time specified in the E_D_TOV field of the Fabric Parameters configuration page (for more information, see Configuring Fabric Parameters for the Switch on page 3-14). This delay enables frames sent using the old path to arrive at their destination before frames begin traversing the new path. If Enterprise Fabric Mode is enabled, Rerouting Delay is automatically enabled and cannot be disabled unless the director or Configuring Security 5-23

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5
Configuring Security
5-23
Enabling the Enterprise Fabric Mode
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 5-25 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 Member 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
Add Members to the FBML
on
page 5-27.
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 Switch
Binding
on page 5-29 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.
If Rerouting Delay is enabled, traffic ceases in the fabric for the time
specified in the
E_D_TOV
field of the
Fabric Parameters
configuration
page (for more information, see
Configuring Fabric Parameters for the
Switch
on page 3-14). This delay enables frames sent using the old
path to arrive at their destination before frames begin traversing the
new path.
If Enterprise Fabric Mode is enabled, Rerouting Delay is
automatically enabled and cannot be disabled unless the director or