This attribute specifies the maximum cell transfer delay (MaxCTD)
which is applied to all connections associated with this Vpt for CBR
traffic.
MaxCTD is the sum of the fixed delay and the CDV. The
components of the fixed delay include propagation delay through
the physical media, delays induced by the transmission system, and
fixed components of switch processing delay.
This attribute is used by PNNI in the Resource Availability
Information Group (RAIG) topology updates and route selection. It
is also used by CAC at connection set-up time to determine whether
this Vpt can meet the ATM connection's MaxCTD requirement.