Extended Credits - Cisco MDS 9000 Series Configuration Manual

Interface Overview

Extended Credits

Extended Credits
Full line-rate Fibre Channel ports provide at least 255 standard buffer credits . Adding credits lengthens
distances for the Fibre Channel SAN extension. Using extended credits, up to 4095 buffer credits from a pool
of more than 6000 buffer credits for a module can be allocated to ports as needed to greatly extend the distance
for Fibre Channel SANs.
Note This feature is supported on all Cisco MDS Director Class Fabric Switches and it is not supported on any
Cisco MDS Fabric switches.
Cisco MDS 9000 Series Interfaces Configuration Guide, Release 8.x
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