Traffic Shaping Implementation

DDSN · Created Aug 30, 2021 12:23:10

Hi Abdul500,

Interface-based traffic shaping, also called line rate (LR), is used to restrict the rate at which all packets (including burst packets) are transmitted. Interface-based traffic shaping takes effect on the entire outbound interface, regardless of packet priorities. Figure shows how interface-based traffic shaping is implemented:

When packets have been implemented with queue scheduling and are leaving queues, all queues are measured together against token buckets.

After queues are measured against token buckets, if the packets total-rate conforming to the specifications, the queue is forwarded. If the packet rate on an interface exceeds the specification, the interface stops packet scheduling and will resume scheduling when tokens are enough.

I hope it helps!

Abdul500 · Created Aug 30, 2021 12:37:40

@DDSN Dear Can we say that Traffic metering method (Single rate three colour marker) can be used to implement traffic shaping in outbound direction?

chenhui · Created Aug 30, 2021 13:22:54

Hello,
In fact, yes. The traffic shaping also uses the token buckets to meter the traffic, while the rate over the limitation, the over traffic will be buffered in the sequences, which reduces the available rate.

Unicef · Created Aug 30, 2021 13:48:27

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