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8-6
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 8 Performance Manager
Flow Statistics Configuration
Flow Statistics Configuration
Flow statistics count the ingress traffic in the aggregated statistics table. You can collect two kinds of
statistics:
• Aggregated flow statistics to count the traffic for a VSAN.
• Flow statistics to count the traffic for a source and destination ID pair in a VSAN.
This section includes the following topics:
• About Flow Statistics, page 8-6
About Flow Statistics
If you enable flow counters, you can enable a maximum of 1 K entries for aggregate flow and flow
statistics. Be sure to assign an unused flow index to a module for each new flow. Flow indexes can be
repeated across modules. The number space for flow index is shared between the aggregate flow
statistics and the flow statistics.
Generation 1 modules allow a maximum of 1024 flow statements per module. Generation 2 modules
allow a maximum of 2048-128 flow statements per module.
Table 8-1 explains the Flow Type radio button that defines the type of traffic monitored.
Ta b l e 8-1 Performance Manager Flow Types
Flow type Description
Host->Storage Unidirectional flow, monitoring data from the host to the storage element
Storage->Host Unidirectional flow, monitoring data from the storage element to the host
Both Bidirectional flow, monitoring data to and from the host and storage
elements
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