Brocade Network Advisor SAN User Manual v12.1.0 - Manual (Page 1062)

Brocade Network Advisor SAN User Manual 1015
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Provisioning flows
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After you define flows for a fabric you can monitor these flows using the Flow Vision dialog box.
Data display for flows includes MAPS violations, values for criteria defined in your flow definitions,
SCSI measures, and frame measures. You can adjust the monitor to display data for multiple flows,
time durations, hide and display SCSI and frame-related measures, launch graphs of flow data, and
change fabrics where flows are monitored, You can also select Flow Monitor, Mirror, and Generator
to display measures for sub-flows where these features are active.
To monitor, launch the Flow Vision dialog box by right-clicking one of the following objects in
Connectivity Map or Product List on the SAN tab and selecting Fabric Vision > Flow > Monitor.
• Switch port
• Initiator port
• Target port
• Switch that supports Flow Vision
• Fabric with one or more switches that support Flow Vision
You can also launch the Flow Vision dialog box by selecting Monitor > Fabric Vision > Flow >
Monitor from the main menu bar.
Configuring flows using master and slave trunk ports
• A flow using the trunk master port monitors the data traffic for the entire trunk.
• For F_Port and E_Port trunks, “Flow Monitor” monitors only the master port of the trunk. If the
master port changes, Flow Monitor automatically starts monitoring the new master port for the
specified flow. If a monitor is installed on a port that later becomes a slave port when a trunk
comes up, Flow Monitor automatically moves to the master port of the trunk.
• When a trunk port change state change notification (EPORT_CHANGE or FPORT_CHANGE)
occurs, the flows on the old master port are deactivated and flows attached to the new master
port are activated.
• If you create an active flow on a trunk slave port, the flow will be automatically activated when
the slave port becomes master trunk port.
• If you create an inactive flow on a trunk slave port, you will have to manually activate the flow if
the slave port becomes trunk master port.
• You should create same flow on all trunk member ports. During configuration replay, flows will
created on both the master and slave ports but only the flows associated with master port
would be activated.
Provisioning flows
To provision or define a flow and to configure Flow Vision to monitor that flow, provide a flow name
and specify the flow parameters in the Add Flow Definition dialog box. These parameters identify
the sets of related frames and can either be explicitly defined or Flow Vision can learn them
through observation.
Flow Vision allows you to learn a particular set of parameters for a frame. For example, you can
define a flow to identify all possible active flows between a defined set of source and destination
device pairs that pass through a specific port.