Cabletron Systems SmartSwitch 6000 User Manual page 152

L2DatMode
LLC2 Parameters
Local SAP Address
Local MAC Address
IDBLK
IDNUM
T1
8-10
determines whether transmission can be in one (alternate) or two (simultaneous) direc-
tions at the same time.
is the remote service access point (SAP) address used to connect the PU to the host.
This parameter is relevant only in a connection to a 3174 or AS/400-type setup where
a specific source SAP address is required. If the LLC2 session will be run over a native
LLC2 frame relay interface, the parameter will be ignored.
identifies the PU to the host. Like the local SAP address, this parameter is relevant
only in a connection to a 3174 or AS/400-type setup where a specific source MAC
address is required. If the LLC2 session will be run over a native LLC2 frame relay
interface, the parameter will be ignored.
is used in conjunction with
(format 0 or 3) to establish a link station connection to the host. A further explanation
is provided under "
IDNUM
is used in conjuction with
0 or 3) to establish a link station connection to the host. If both
set to , the Node field of the XID will be provided by the attached SDLC device. (The
0
node will send an XID command to the remote node to indicate that the SDLC device
should be polled for an XID.)
is the Reply Timer, which is used to detect the failure to receive a required acknowl-
edgment or response from the remote link station. The link station will start the timer
when it transmits one of these:
an Information LPDU (LLC protocol data unit).
a Command LPDU with the P bit set to
is already running, the link station will reset and restart it.)
The link station will reset
A REJ (Reject) LPDU, provided a Command LPDU with P bit set to
outstanding.
A Response LPDU with the F bit set to
An Information or Supervisory LPDU with an N
received and less than or equal to the line station's V
LPDU with P bit set to
If additional LPDUs are set from the remote link station after the local station has reset
, the timer will be restarted if acknowledgments of or responses to those LPDUs are
T1
outstanding. If no acknowledgments/responses are outstanding, the link station will
start the inactivity timer. (See "
in generating the Node field in an XID frame
IDNUM
."
in generating the Node field in an XID frame (format
IDBLK
B'1.'
when it receives one of these:
T1
B '1.'
is not outstanding.
B'1'
" later.)
Ti
and
IDBLK
(If this LPDU is sent while the timer
greater than the last N
R
, provided a Command
S
FRX/FRM 3.3 User Guide, Rev 04
are
IDNUM
is not
B'1'
R