SNA8110T Gepon OLT User Manual
陈泽科技有限公司
www.stephen-tele.com
The TK3701/TK3711 and future ONUs support highly configurable line rate classification engines. Depending on the model, the
ONU lookup engine is capable of simultaneously examining anywhere from 8-12 fields in the frame! The position and size of each field
is programmed into the lookup engine prior to use in filtering and classification rules.
Depending on the device the ONU reserves a certain number of fields that cannot be changed by the user. These fields may be used
to construct user provisioned classification and filtering rules, however their definitions may not be changed. All of the currently
provisioned fields including those reserved by the ONU may be viewed by clicking on the Edit Fields tab.
11.2.1 Selecting a Classification Engine
Most ONU classification engines are configured on a per port basis. However, the TK3701 supports only upstream and downstream
classification. The Port field allows the operator to choose the set of field selects to modify. Depending on the port that is chosen the
provisioning may be different. For ONUs supporting only upstream and downstream classification, the EPON port designates
downstream, and selecting either User Port selects upstream.
11.2.2 Field Select Table
The Field Select Table displays the Field Selects associated with the currently selected port, and allows
field selects to be selected for modification.
1.2.2.1 Index
A number used to identify the field select.
11.2.2.2 Name
An ASCII description of the field select.
field select
的
ASCII
11.2.2.3 RefCount
The number of rules currently using the filed select. A non-zero value means that the field select may not
be modified.
11.2.2.4 LayerSel
This is the Host Interface layer select value provided for reference.
11.2.2.5 Dword
