Brocade Fabric OS Administrator's Guide Supporting Fabric OS v6.3.0 (53-1001336-02, November 2009)

Fabric OS Administrator’s Guide 387
53-1001336-02
End-to-end performance monitoring
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To enable end-to-end performance monitoring, you must configure an end-to-end monitor on a port,
specifying the SID-DID pair (in hexadecimal). The monitor counts only those frames with matching
SID and DID.
Each SID or DID has the following three fields:
• Domain ID (DD)
• Area ID (AA)
• AL_PA (PP)
For example, the SID 0x118a0f denotes DD 0x11, AA 0x8a, and AL_PA 0x0f.
You can monitor end-to-end performance using the perfMonitorShow command, as described in
“Displaying monitor counters” on page 398. You can clear end-to-end counters using the
perfMonitorClear command, as described in “Clearing monitor counters” on page 399.
End-to-end monitors
The maximum number of end-to-end monitors supported varies depending on the switch model:
• The Brocade 4100, 4900, 5000, 7500, 7500E, 7600, and 48000 models allow up to 256
end-to-end monitors shared by all ports in the same ASIC chip.
• The Brocade DCX, DCX-4S, 5100, 8000, and Brocade Encryption Switch models allow up to
1024 end-to-end monitors shared by all ports in the same ASIC chip.
• The Brocade 300, 5300, 5410, 5424, 5450, 5480, and 7800 models allow up to 768
end-to-end monitors shared by all ports in the same ASIC chip.
The number of interswitch links configured on the switch affects the amount of resources available
for end-to-end monitors.
Virtual Fabrics considerations: If Virtual Fabrics is enabled, the Brocade DCX, DCX-4S, and 5300
models allow up to 256 end-to-end monitors on one logical switch. The Brocade 5100 allows up to
337 end-to-end monitors on one logical switch.
The Brocade FC4-48 blade allows end-to-end monitors on all 48 ports.
For the FC4-16IP blade, end-to-end monitors are supported on the FC ports (ports 0 through 7), but
not on the GbE ports.
You cannot add end-to-end monitors to interswitch links.
Identical end-to-end monitors cannot be added to the same port. Two end-to-end monitors are
considered identical if they have the same SID and DID values after applying the end-to-end mask.
The monitor count is qualified using either of the following conditions:
• For frames received at the port with the end-to-end monitor installed, the frame SID is the
same as “SourceID” and the frame DID is the same as “DestID”. The RX_COUNT updated
accordingly.
• For frames transmitted from the port with the end-to-end monitor installed, the frame DID is
the same as “SourceID” and the frame SID is the same as “DestID”. The TX_COUNT updated
accordingly.