Cabletron Systems SmartSwitch 1800 User Manual - page 82
7-14
SmartSwitch 1800 4. 0 User G uide, Rev 01
Frame Relay Port Parameters
1 If set to
Y
, no backup DLCIs on this port will be used (even if the port is enabled via
on-line port enable).
2 If one physical frame relay port will connect to several remote sites, be sure the line
speed is adequately higher that the speeds configured on the remote sites.
3 If this port will connect to a frame relay network, set
Logi cal DCE
to
N
. Also note that
one end of a frame relay backup connection must be configured as logical DCE.
4 Not applicable to CSU/DSU ports.
5 This parameter is relevant only if
Physical Port I nterface
is something other than
RS-
232
and
G enerate Clock
is
Y
.
6 Applicable only to CSU/DSU ports.
7 These parameters are relevant only if
Link Layer Management
is
LMI
or
ANNEXD
and
Logical DCE
is
N
.
8
N3
should be greater than or equal to
N2
.
9 If
Link Layer Management
is
none
, this parameter is irrelevant. (If
Link Layer Man-
agement
is changed to none from some other value, the default for
N2
will be left as it
was before the change.)
10
T2
should be greater than or equal to
T1
.
11 This parameter is relevant only if
Logical DCE
is
Y
.
Table 7-3 Frame Relay Port Parameters
Parameter
Valid Values
Default Value
Port Type
Fram e Rel ay
not valid here
Physical Port Interface
see explanation
see explanation
Blocked Port Flag
Y/ N
1
N
Line Speed
(bits per sec)
see explanation
9600
2
Maximum Bytes per Frame
16–4096
1600
Logical DCE
Y/ N
3
Y
Generate Clock
4
Y/ N
Y
Rcv Clock (TT) from DTE
4,5
Y/ N
N
CSU/DSU O perating Mode
6
Normal /LDM
Norm al
RTS Control
6
Constant/External
Constant
Link Layer Management
None, LMI, ANNEXD
None
N1 Polling Count
7
1–6
6
N2 Error Threshold
7
1–10
8
2
if
LMI
9
3
if
Annex D
9
N3 Monitored Events Count
7
1–10
8
4
T1 Link I ntegr ity Timer
(sec)
7
5–30
10
10
T2 Polli ng Veri fi cation Tim er
(sec)
11
5–30
10
15
Enable Outgoing Rate Control
Y/ N
N
Enable Bandwidth Al locati on
Y/ N
N
For Backup Use Onl y?
Y/ N
N
Automatic DCE
Y/ N
N