Rate-Limiting — GMB features when Fast-Connect SmartRate ports are configured

When Rate-Limiting or Guaranteed Minimum Bandwidths are configured for 5Gbps ports, the granularity of percentage-based rates for the 5Gbps speed is in steps of 2%. For example, a 1% rate-limit for a 5Gbps port will function as a 2% limit while a 5% limit will function as a 6% limit.

The Guaranteed Minimum Bandwith profiles will show the same behavior. For example on an 8-queue system, the actual default servicing profile will be 2%, 4%, 30%, 10%, 10%, 10%, 16%, and 20%. The CLI and SNMP values for these ports will show what the customer configured, but the actual hardware results will be in steps of 2%.

This limitation only applies to 5Gbps ports. Ports running at 2.5Gbps have the same 1% granularity as all previously-offered port speeds.