Pirl Resource Configuration - RACOM RAy3 User Manual

Where α is constant, which is 62 500 000 for Accounted bytes="frame", and is 500 000 000 for Ac-
counted bytes="layer1". BRF is Bucket Rate factor and BI is Bucket increment.
• Size [kB]
The Burst allocation buffer size depends on the Bucket increment, the Committed Burst Size limit or
the Excess Burst Size limit.
The formula for the BA is as follows:
BA = xBS / BI.
Where xBS can be either the Committed Burst Size limit CBS for the green bucket size or the Excess
Burst Size limit EBS for the yellow bucket size and BI is the Bucket increment.
In order for the rate limiting to be accurate, it is required that bucket size is larger than max frame
size (MTU).
The Burst allocation size should be less than switch internal memory which is 250 kB.
• Mode
Rate type or Traffic type of rate limiting. See Bucket type parameter.
• Edit
The button opens for selected PIRL resource a new window, where all its parameters can be edited
(for details see 'PIRL resource configuration').
• Delete
The button deletes selected PIRL resource.
• Add resource
The button creates a new PIRL resource and opens a new window, where all its parameters can be
configured (for details see 'PIRL resource configuration').

5.5.2.3. PIRL resource configuration

This window opens after pushing button 'Edit resource' or 'Add resource' on page 'PIRL' (for details
see above).
Each port can be assigned up to five different ingress rate resources.
Each resource defines a rule (filter) for the incoming frame. If the rule is met, the frame is affected (as
set by the EBS limit action parameter). If the incoming frame doesn't meet any rule, it is not affected
by PIRL. The frame is accepted and forwarded further to the switch engine.
© RACOM s.r.o. – RAy3 Microwave Link
Configuration
117