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Brocade Network Advisor SAN User Manual
53-1003154-01
Flow Mirror
29
Flow Mirror duplicates the specified frames in a user-defined flow, and sends them to a mirror port.
There are two types of mirrors:
•
CPU Mirroring — Sends the duplicated frames to the local switch Control Processor Unit (CPU);
however, CPU Mirroring has a limit of 256 frames per second.
•
Local Flow Mirroring (LFM) — Sends the duplicated frames to an unoccupied, loopback, or
mirror port on the same physical switch on which you defined the flow. LFM mirrored data can
then be analyzed through an external Analyzer/Frame sniffer connected to the port. LFM
requires that a loopback SFP be plugged in at the other end of the analyzer, or on the port
configured as a mirror port.
Note that if you select an unoccupied or loopback port, the Management application first
reconfigures the port as a mirror port, and then creates the flow. This enables you to mirror a
flow to a specific port, which is present on the same physical switch on which you defined the
flow.
You can create a Flow Mirror flow by creating a copy of the flow you want to examine. Flow Mirror
flows can be in an active state or an inactive state. If the mirror flow is “active”, mirroring starts
immediately; if the flow is “inactive”, the flow must be activated (refer to
“Activating flows”
on
page 1136") for mirroring to start. Mirrored flows can be unidirectional or bidirectional.
A sample use case would be to mirror the traffic flow from a slow-draining F_Port to see what is
causing this condition.
“Diagnosing a slow-draining F_Port”
on page 1199" provides an example of
this type of mirrored flow and the results for this use case.
Figure 513
provides a diagram of a mirrored flow with the ingress port mirroring the traffic flow to
the CPU. Flow Mirror can also mirror the egress port, but only one port (ingress or egress) can be
mirrored per flow. To mirror from one port in both flow directions (left to right and right to left), you
must use the Bidirectional option.
FIGURE 513
Mirror flow
Summary of Contents for Network Advisor 12.3.0
Page 4: ...iv Brocade Network Advisor SAN User Manual 53 1003154 01...
Page 86: ...34 Brocade Network Advisor SAN User Manual 53 1003154 01 Uninstalling a patch 2...
Page 190: ...138 Brocade Network Advisor SAN User Manual 53 1003154 01 Fabric tracking 4...
Page 216: ...164 Brocade Network Advisor SAN User Manual 53 1003154 01 User profiles 5...
Page 612: ...560 Brocade Network Advisor SAN User Manual 53 1003154 01 Exporting Host port mapping 13...
Page 620: ...568 Brocade Network Advisor SAN User Manual 53 1003154 01 Exporting storage port mapping 14...
Page 720: ...668 Brocade Network Advisor SAN User Manual 53 1003154 01 Security configuration deployment 17...
Page 744: ...692 Brocade Network Advisor SAN User Manual 53 1003154 01 Configuring Virtual Fabrics 19...
Page 1068: ...1016 Brocade Network Advisor SAN User Manual 53 1003154 01 Removing thresholds 24...
Page 1098: ...1046 Brocade Network Advisor SAN User Manual 53 1003154 01 Swapping blades 25...
Page 1176: ...1124 Brocade Network Advisor SAN User Manual 53 1003154 01 SAN connection utilization 28...
Page 1378: ...1326 Brocade Network Advisor SAN User Manual 53 1003154 01 Event logs 32...
Page 1448: ...1396 Brocade Network Advisor SAN User Manual 53 1003154 01 Upload failure data capture 34...
Page 1490: ...1438 Brocade Network Advisor SAN User Manual 53 1003154 01 SAN shortcut menus A...
Page 1494: ...1442 Brocade Network Advisor SAN User Manual 53 1003154 01 Call Home Event Tables B...
Page 1524: ...1472 Brocade Network Advisor SAN User Manual 53 1003154 01 About Roles and Access Levels D...
Page 1552: ...1500 Brocade Network Advisor SAN User Manual 53 1003154 01 Regular Expressions F...
Page 1920: ...1868 Brocade Network Advisor SAN User Manual 53 1003154 01 Views H...