Description: This attribute is a vector of three elements that specify the quality of service parameters for the forward direction for this connection. This attribute is used for SPVC connections.

The cdv element specifies the acceptable peak-to-peak Cell Delay Variation (CDV) of real-time connections (CBR, and rt-VBR). It is signalled through the extended QoS information element.

The ctd specifies the acceptable maximum Cell Transfer Delay (maxCtd) of real-time connections (CBR, and rt-VBR). It is signalled through the end to end transit delay information element.

The clr specifies the acceptable Cell Loss Ratio (CLR) of CBR, rt- VBR, and nrt-VBR connections. It is signalled through the extended QoS information element.