How your RISE Enterprise Service is Rate limited
For Enterprise services, RISE uses token bucket based policing to limit your connectivity to the prescribed service speed as per your customer agreement.
To ensure you receive the best possible experience we set the limit slightly above your service speed. As is typical in the industry we also set a burst size based on best practice. Packets exceeding the set rate will be dropped which will in turn cause TCP to reduce its download rate. There is no associated disconnection or overall interruption as a result of this, though if IP voice traffic is discarded as part of this shaping it can cause a brief period of poor quality.
If you are heavily utilising your service and also using IP voice, we recommend you perform shaping of your non-voice traffic to ensure there is always bandwidth available for your voice traffic.
More information can be found at Single token bucket algorithm - Technical documentation - support - Juniper Networks.