Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

2–Advanced Fabric Manager Capabilities
Performance Manager
Table 2-1. PM Conditions and Associated Ports Counter
Condition Associated Port Neighbor Port
Bandwidth (MBps)
(MAX used)
Packet Rate (KPps)
(MAX used)
Integrity (weighted
sum of below)
PortXmitData
PortXmitPkts
SymbolErrorCounter
LinkErrorRecoveryCounter
LinkDownedCounter
PortRcvErrors
LocalLinkIntegrityErrors
PortRcvData
PortRcvPkts
ExcessiveBufferOverrunErrors
Congestion
(weighted sum of
below)
XmitDiscards
Congestion percent (from PortXmitCongestion
relative to link rate)
Inefficiency percent (from Congestion
percent relative to link utilization
percent)
SmaCongestion VL15Dropped
Security (sum) PortRcvConstraintErrors PortXmitConstraintErrors (sum)
Routing PortRcvSwitchRelayErrors
Adaptive Routing PortAdaptiveRouting
The results of the associations of conditions to ports is as follows:
• Bandwidth/Packet Rate – Associated with port generating the traffic.
Typically transmit value of one port matches receive value of the neighbor.
However the larger of the two is reported for the link. Bandwidth is tracked
as an absolute value as well as percentage of wire speed. Packet rate is
only tracked as an absolute value.
• Integrity – Associated with the port which is having problems receiving
packets. The Integrity value is computed as a weighted sum, the weight for
each counter is configurable. ExcessiveBufferOverruns can mean that the
local port is not properly receiving link flow control, so it is incorrectly
causing an overflow on the neighbor. Link integrity problems can ultimately
be due to hardware on either end of the link or the cable.
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