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

2–Advanced Fabric Manager Capabilities
Performance Manager
• Target Channel Adapters – all ports on Target Channel Adapters in the fabric
• SWs – all ports on switches in the fabric
Non-Enhanced Switch Port 0's do not support PMA statistics and are omitted from
all Groups.
Within groups, the ports are defined as internal and external.
A port for which both it and its neighbor are in the group is considered an Internal
Port. For example ISLs are Internal to the SWs group. Refer to Figure 2-11 for an
example of internal and external links.
Send from Group
External Link
Receive to Group
Group Boundary
Internal Link
Figure 2-11. Internal and External Links
A port for which one side of the link is in the group but its neighbor is not in the
group, is considered an External port. For example a link between an Host
Channel Adapter and a Switch will tabulate both the Switch Port and the Host
Channel Adapter port as External to the SWs group.
For External ports, Send (data leaving the group) and Recv (data entering the
group) statistics are accumulated. Error counters are also accumulated to reflect
the overall status of the link.
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