Enterasys 6000 User Guide
Configuring Frame Relay
6-21
Configuring a Logical Port
Configuration of logical ports in an FRX/FRM allow multiple legacy protocols
(SDLC, async, bisync, etc.) to be encapsulated (via X.25) and transmitted over a
single physical frame relay port.
(SDLC, async, bisync, etc.) to be encapsulated (via X.25) and transmitted over a
single physical frame relay port.
Some things to know are:
●
Encapsulation can be via either T1.617 Annex G (a.k.a. FRF 3 and 3.1) or
T1.617 RFC1490. You should know the pros and cons of using each. The expla-
nation of "Encapsulation Method" on page 6-24 offers some help.
T1.617 RFC1490. You should know the pros and cons of using each. The expla-
nation of "Encapsulation Method" on page 6-24 offers some help.
●
Both level-2 and level-3 windows can be configured. (Configuration and oper-
ation is the same for either encapsulation method.) There is a level-2 window
ation is the same for either encapsulation method.) There is a level-2 window
Press
[B]
at the Port Configuration Menu (or
[A], [C], [B]
from the Main Menu). When
prompted, enter:
●
LP number containing the physical port:
0
in an FRX4000 or FRM,
0–7
in an
FRX6000. (The default is
0
.)
●
Logical port number:
8–63
. (The default is
8
.)
The display for an existing port will show the configured parameter values, while the
display for a new port will contain default database values, shown in the following
figure.
display for a new port will contain default database values, shown in the following
figure.
Figure 6-8 Logical Port Screen 1
[A],[C],[B]
from Main Menu
There are four Logical Port screens. Selecting the entry
X.25 Logical Port - Screen "n"
at each of the first three screens will display the next screen, and pressing
[F3]
will
display the previous screen.
N ode Name= node_xyz
Logical Port Parameters (screen 1 of 4)
*
*
RLP:
0
Port:
0
Logical Port: 8
*
I/O: V.35
D atabase
A Mapped DLCI N umber
16
B Block ed Port Flag
N
C Con nection Priority
0
D Band width Allocation Group
0
E Encaps ulation Meth od
R FC 1490
F Modulo
0 Mod ulo 8
G Maximu m LAPB Win dow Size
7
H N2 Retran smit C ount
20
I
T1 R etrans mit Period (ms ec)
3000
J
T2 Wait Ack Period (msec)
1000
K T3 Link A live Period (sec)
5
L Logical D CE
Y
M X.25 Logical Port - Screen 2
N Datab ase Disp lay
N Datab ase Disp lay
Y
Op tion :