This field configures an action that IOP should take
against cells when traffic congestion occurs.
earlyPktDiscard(1) is treated as 'enable'
for IOP version 1 since it doesn't support early packet discard
feature. Early packet discard is an IOP 2 feature.
In this mode, IOP either passes or discards all the cells
of a packet. It passes all cells of a packet during congestion if
the first cell of the packet has been passed.
Cells are marked when GCRA contract is violated.
This option does not apply to VBR_RT and CBR and CBR_PRS.
disable(2) is selected to disable early packet discard and
partial discard feature. Cells are discarded when needed
during congestion. Cells are marked when GCRA contract
is violated.
partialPktDiscard(3) is an IOP 2 feature. IOP starts discarding
cells--all of the remaining cells except for the last cell of
the packet-when congestion occurs.
When congestion ends, the first cell of a new packet is passed.
Cells are marked when GCRA contract is violated.
This option does not apply to VBR_RT and CBR and CBR_PRS.
The default value for IOP 1 is 'disable'.
The default value is 'earlyPktDiscard'
for IOP 2 if the transport type of the circuit is UBR,
ABR, and VBR_NRT.
'disable' is the default for VBR_RT and CBR and CBR_PRS.