mscAtmIfVptVpdTmAbrConnectionType 1.3.6.1.4.1.562.36.2.1.114.9.2.2.100.1.90

This attribute specifies the type of ABR behavior which is to be enforced at this connection. This attribute is only applicable if the atmServiceCategory attribute is availableBitRate. If the atmServicecategory attribute is not availableBitRate, this attribute value is ignored. The actual ABR functionality which is in effect is visible in the Vcc/Vpc/Vpt Tm abrConnectionType operational attribute. For CQC-based ATM cards, the only allowable values are sameAsCa, nonAbrInterworking or abrSwitch. If abrSwitch is selected, the CQC implements EFCI marking behavior. For the 1pOC12SmLrAtm card, the only allowable values are sameAsCa or abrSwitch. If abrSwitch is selected, EFCI marking behavior is implemented. sameAsCa is used to request the default behavior as specified in the CA Abr component for this Vcc. Otherwise, this attribute overrides the default behavior. virtualSourceDest is used to request that this connection point function as a virtual source/virtual destination. VS/VD functionality is only supported on ATM IP FPs. sourceDest requires that this connection point function as a S/D for RM cells. S/D mode is automatically invoked at this connection point either if this is a connection end point, or if the next hop connection point is configured as nonAbrInterworking. nonAbrInterworking is used to request that this connection point function as an interworking between ABR and non-ABR service categories. This means that there are no RM cells on the link side of this connection, and that the next hop connection point is performing as an ABR sourceDest. abrSwitch is used to request ABR switch behavior for this connection point. The ABR switch behavior is first, to confirm to virtualSourceDest or nonAbrInterworking setting on the next hop, and otherwise to implement ABR ER switch behavior. For CQC- based FPs, ABR switch behavior is implemented as EFCI marking.