User`s guide

3: ADCCP NRM DLI Functions
DC 900-1317J 69
ful for temporarily stopping the link without terminating the session (for example, to
reconfigure the link using the
DLI_PROT_CFG_LINK packet). The link is restarted by issuing
a
DLI_PROT_SEND_BIND packet.
3.4.19 DLI_PROT_RESP_UNBIND_ACK Packet
The ICP uses this packet to report a physical link inactive or a station inactive on the
link. The ICP reports a physical link inactive after the client attempts to disable it; the
ICP’s response is the same regardless of whether the physical link was active or inactive
at the time of the client’s request. However, the ICP reports a station inactive only when
it changes from either an initialization state or an information transfer state to a discon-
nected state.
When reporting an inactive physical link, the ICP specifies the usProtCommand field
(
DLI_PROT_RESP_UNBIND_ACK), the link ID, and a zeroed usProtXParms[0] field (station
ID). The presence of the zeroed station ID tells the client that the control packet relates
to the physical link, rather than to an assigned station.
When reporting an inactive station on a link, the ICP specifies the usProtCommand field
(
DLI_PROT_RESP_UNBIND_ACK), the link ID, and the usProtXParms[0] field (station ID). The
presence of the station ID tells the client that the control packet relates to an assigned
station, rather than to the physical link.
3.4.20 DLI_PROT_CFG_LINK Packet
The client uses this packet to configure a link or a station or to adjust selected station
operation parameters. The
DLI_PROT_CFG_LINK packet uses the data area to convey
parameter information beyond that given in the
iProtModifier field. The usProtXParms[1]
field (data size) must correctly specify the size of this data area. Tab le 3–7 , Figure 3–2,
and Ta bl e 3 – 8 show the required content of the data area for each of the three variants
of the
DLI_PROT_CFG_LINK packet. See also Section 4.1.2 on page 86. If your application
must perform link configuration itself, you must set both the
cfgLink and enable DLI
configuration parameters to “no” for that link (Section 5.2 on page 104).