Reference Guide

In the following example, back-end port credit loss recovery is enabled with the link reset only option.
switch:admin> creditrecovmode --cfg onLrOnly
3. Enter creditrecovmode --show to display information about the back-end port credit recovery configuration. In the following
example, back-end port credit loss recovery is enabled with the “link reset only” option.
switch:admin> creditrecovmode --show
Internal port credit recovery is Enabled with LrOnly
C2 FE Complete Credit Loss Detection is Enabled
Performing link reset for loss of sync from peer ports
You can perform link reset on all the 8-Gbps, 16-Gbps, and 32-Gbps ports backend ports if there is a loss of sync from peer ports. You
can configure either or both of the following link resets.
1. Run the creditrecovmode --be_crdloss [off|on] to configure the credit loss detection link reset. By default, it is off.
2. Run the creditrecovmode --be_losync [off|on] to configure the loss of sync detection link reset. By default, it is off.
The link reset action is decided based on the --lrthreshold, --crdLoss, and --losync settings as per the following matrix.
Lrthreshold crdloss losync Link reset action
On Off On Link resets with threshold logic to fault blade.
Off Off On Link resets with no threshold logic.
On On Off Link resets with threshold logic to fault blade.
Off On Off Link resets with no threshold logic.
On On On Link resets with threshold logic to fault blade.
Off On On Link resets with no threshold logic.
Off/On Off Off No link reset.
Buffer-to-Buffer Credits and Credit Recovery
Brocade Fabric OS Administration Guide, 8.0.1
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