Buffer Tuning Points; Decide To Tune Buffers; Using The Buffer Tuning Commands - Dell Force10 Z9000 Configuration Manual

Buffer Tuning Points

Decide to Tune Buffers

Dell Networking recommends exercising caution when configuring any non-default buffer settings, as tuning can significantly affect
system performance. The default values work for most cases.
As a guideline, consider tuning buffers if traffic is very bursty (and coming from several interfaces). In this case:
• Reduce the dedicated buffer on all queues/interfaces.
• Increase the dynamic buffer on all interfaces.
• Increase the cell pointers on a queue that you are expecting will receive the largest number of packets.

Using the Buffer Tuning Commands

To tune the buffer, use the following commands.
NOTE: Buffer profile queue 1 is not supported. Use default buffer profile queue 4.
• Define a buffer profile for the FP queues.
CONFIGURATION mode
buffer-profile fp fsqueue
• Define a buffer profile for the CSF queues.
CONFIGURATION mode
buffer-profile csf csqueue
Z-Series Debugging and Diagnostics
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