This attribute indicates the current set of packet-wise discard
functions in effect in the transmit data direction at this connection
point.
A value of ppd indicates that the Partial Packet Discard (PPD)
function is in effect. PPD may be applied at an intermediate
connecting point for a connection which is transporting frame traffic
(AAL5 at the endpoint). PPD is controlled by provisioning for
PVCs and SPVCs, and by call setup parameters in the AAL and
Traffic Descriptor Information Elements.
A value of epd indicates that the Early Packet Discard (EPD)
function is in effect at this connection endpoint. On CQC-based
ATM cards, PPD and EPD are enabled by default at a connection
endpoint which is performing AAL5 segmentation and assembly.
A value of wred indicates that Weighted Random Early Detection is
in effect at this connection point. W-RED can be enabled by
provisioning for PVCs and SPVCs.
On ATM IP cards, all packet-wise discard functions also apply to
provisioned virtual path connections (VPCs). On CQC-based ATM
cards, packet-wise functions are not applicable for VPCs.
This attribute is not applicable for Vpts.
Description of bits:
ppd(0)
epd(1)
wred(2)