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The throughput limitation principle described above is implemented in the Infinet devices in two ways:
- Physical interface traffic shapingTraffic shaping at the physical interface: limitations will be applied to the whole data flows traffic flow passing through the physical interface. This method is easy to configure - specify the interface and the threshold value, but it does not allow to apply limitations to the a specific network service traffic.
- Traffic flow shaping: limitations are applied to the logical data flowflows. The logical data stream is separated from the main traffic by the a specified criteria. It allows to apply throughput limitations to the per network services traffic, which are separated by the values of the service header fields values. For example, the traffic tagged with vlan 42 can be separated to the a logical channel and limited by in throughput without influencing the other traffic flows.
The Infinet devices allow to configure hierarchical throughput allocation structures. Two objects object types are used to perform this: a logical channel and a class, which are connected by a child-parent relationship. The class has a throughput value assigned, which is distributed between the child logical channels, and the channel has a guaranteed and a maximum throughput values value - CIR and MIR.
Let's look at the example of two services traffic transmission associated with vlan id's 161 and 162, between Master and Slave (Figure 17a). Totally the service traffic should not exceed 9 Mbps.
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