This read-write INTEGER (0..275 ms), equivalent to axisImaGroupDiffDelayMax in the Forum Compliant IMA MIB, specifies the maximum tolerable differential propagation delay between the various links in the IMA group, with platform-specific defaults such as 200ms for E1 lines or 275ms for T1 lines on an AUSM-8p, and 50ms for either line type on an IMATM. An administrator cares about this because links whose cable or path lengths cause a delay mismatch exceeding this value will be excluded from the IMA group rather than bonded together. For example, a T1 line with a significantly longer physical path than its sibling links in an AUSM-8p IMA group would need its differential delay to stay under 275 milliseconds or it would not be accepted into the bonded group.