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FCoE Cookbook for HP Virtual Connect Version 4.20 Firmware Enhancements May 2014

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When slow FCoE performance is due to Pause frames transmitted by the
Nexus switch.
Figure 49: Nexus sending PFC Pause frames due to FC congestion.
FC Target
LAN
PPP
Congestion
Point
Nexus interface connected
to Virtual Connect that needs
to be monitored
When the Nexus switch is sending Pause frames to VC, the Nexus interface that is connected to the Virtual Connect
module is showing the following:
For a few iterations using the "show queuing interface ethx/x" command, the pause status are detected for TX as
Active: