Users Guide

558 Fabric OS Administrator’s Guide
53-1002920-02
Frame monitoring
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Frame monitoring
Frame monitoring counts the number of times a frame with a particular pattern is transmitted by a
port, and generates alerts when thresholds are crossed. Frame monitoring is achieved by defining
a filter, or frame type, for a particular purpose. The frame type can be a standard type (for example,
an SCSI read command filter that counts the number of SCSI read commands that have been
transmitted by the port) or a user-defined frame type customized for your particular use. For a
complete list of the standard, predefined frame types, refer to the fmMonitor command description
in the Fabric OS Command Reference.
The maximum number of frame monitors and offsets per port depends on the platform. Table 88
shows the maximum number of frame monitors, in any combination of standard and user-defined
frame types, and the maximum number of offsets per port.
The actual number of frame monitors that can be configured on a port depends on the complexity
of the frame types. For trunked ports, the frame monitor is configured on the trunk master.
Static offsets are preset with offset and value combinations. Brocade also supports additional
dynamic offsets. When a user-specified offset and value combination matches that already
allocated by a Brocade application, resources are shared. The maximum number of configurable
offsets by fmMonitor may increase or decrease as a result of resource sharing.
Virtual Fabrics considerations: Frame monitors are not supported on logical ISLs (LISLs), but are
supported on ISLs and extended ISLs (XISLs).
License requirements for frame monitoring
The Fabric Vision license provides full monitoring capability. If you have this license, you do not
need the Advanced Performance Monitoring or the Fabric Watch licenses.
If you do not have the Fabric Vision license, you need the following licenses:
• Advanced Performance Monitoring license is required to use the fmMonitor command.
• Fabric Watch license is required to use the monitoring functionality through Fabric Watch.
When you configure actions and alerts through the fmMonitor command, Fabric Watch uses these
values and generates alerts based on the configuration. If you do not have a Fabric Watch or Fabric
Vision license, these values are ignored. Refer to the Fabric Watch Administrator’s Guide for more
information about using Fabric Watch.
TABLE 88 Maximum number of frame monitors and offsets per port
Platform Maximum number of frame monitors
per port
Maximum number of offsets
per port
Brocade 300, 5300, 5410, 5424, 5450,
5460, 5470, 5480, and 7800
813
1
1. For switches in Access Gateway mode, the maximum number of offsets per port is 7.
Brocade 5100, 6505, 6510, 6520, M6505,
6547, VA-40FC, DCX, DCX-4S, DCX 8510, and
Brocade Encryption Switch
12 25
2
2. For switches in Access Gateway mode, the maximum number of offsets per port is 15.