Supported Port Types; Flow Vision Terminology - Brocade Communications Systems WFT-2D User Manual

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Flow Vision overview

Supported port types

Flow Vision is supported on the following 8 Gbps- or 16 Gbps-capable FC port types. For more
information on support for a specific feature, such as Flow Monitor, Flow Mirror, or Flow Generator,
refer to the appropriate sections on those features.
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Flow Vision terminology

Table 87
TABLE 87
Term
Defined flow
Local flow
Root flow
Static flow
Sub-flow
Remote flow
Learned flow
Local switch
Remote switch
ISL
DISL
LISL
XISL
Backbone E_Port
1126
E_Ports
F_Ports
EX_Ports
E_Port trunk
F_Port trunk
M_Ports (Mirror ports)
SIM-Ports
Base E-port
explains the terms used in the discussion of Flow Vision.
Flow Vision terminology
Description
User-created flow; it can be active or inactive.
Flow defined on the switch on which you run the flow.
Instance of a static flow used to create learned flows.
Flow created without using a learned flow.
System auto-created flow based on a root flow. There can be more than one sub-flow.
Flow defined on a different switch from the one on which you are viewing it.
Flow defined using an asterisk (*) for the source and destination end devices, which
enables Flow Vision to learn all of the source and destination device pairs passing
through the switch through a specified ingress or egress port without having to identify
all the devices.
Switch on which you run the flow.
Switch other than the switch on which you run the flow.
An Inter-Switch Link (ISL) is a protocol that maintains VLAN information in Ethernet
frames as traffic flows between switches and routers, or switches and switches.
A Dynamic ISL (DISL) is a physically-connected link between two logical switches that
belong to the same Fabric ID (FID). A DISL is dedicated to carry frames only related to
the FIDs of connected logical switches.
A Logical ISL (LISL) is a logical link between two logical switches that is used for control
frames. Depending on the fabric topology, a LISL may or may not map directly to a
single physical ISL.
An eXtended ISL (XISL) is a logical link connecting base switches together to form the
base fabric. It carries frames from the base fabric and other logical fabrics using the
encapsulation and inter-fabric link (IFL) header as identifiers.
The E_Port on a Fibre Channel Routing (FCR)-enabled switch.
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