Configuration guidelines for 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

The following guidelines apply to SAP configurations:

• The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C support the following types of SAPs:

  • access SAPs

    null, dot1q (dot1q, dot1q default, dot1q range, dot1q explicit null), QinQ SAPs (Q1.Q2, Q1. *, Q1.0 QinQ default SAP (that is, *.* SAP), 0.*) are supported.

  • access-uplink SAPs

    QinQ SAPs (various SAP types, such as Q1.Q2, QinQ default SAP (*.* SAP), 0.*, Q1.*, Q1.0) are supported.

• The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C support Q1.0 SAP. This SAP accepts a packet with the outermost tag as Q1 or a packet with outermost tag as Q1 and the following inner tag is a priority tag. Unlike 7x50, it does not accept packets with two tags with the outermost tag being Q1 and the inner tag being any tag other than priority tag.

• The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C allow any port to be configured in either access-uplink mode or access mode. Additionally the ports can be in access-uplink mode or access mode or they can be mix of the ports using either modes. There is no limit to the number of access ports allowed to be configured. That is, all ports can be configured as access ports. The number of access-uplink ports depends on the number of QoS resources allocated per port. That is, not all the ports can be configured as access-uplink ports at a specific time.

• The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C support service MTU:

  • A received frame/packet length is checked against the configured service MTU after subtracting the length of the SAP encapsulation (including the Layer 2 header) from the received frame length. The packet is further processed in the context of the service, if the computed length is less than equal to the configured service MTU or the packet is dropped.

  • The user must configure the correct service MTU across all the nodes, if support is available, through which the service is transported.

• The 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C support only the following svc-sap type parameters:

  • ‛any’

    A service configured with this value for svc-sap-type allows for configuration of all combination of access SAPs and access-uplink SAPs in the same service, except for dot1q range SAPs. A packet that is received with tags more than the number of SAP tags to which it is mapped to, is forwarded transparently in the service (the processing behavior is similar to any other packet mapped to the SAP).

  • ‛dot1q-range’

    A service configured with this value for svc-sap-type allows for configuration of dot1q range SAPs and Q1.* access-uplink SAP in the same service.

The following table lists the SAPs allowed on the 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C with different values of svc-sap-type.