Cabletron Systems 1800 Logica l Port Pa ramete rs

Configuring X.25 8-13
After making any changes, be sure to press [F7] to update the
system memory. Otherwise, the changes will not take effect until
the next re-boot of the SmartSwitch 1800.
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.
Any menu items preceded by asterisks ins tead of lett ers cannot be changed . These are
displayed only because the software code for the menu is shared with physical port
configuration.
If yo u want to conf igure one or more close d user group s (CUG s) for the po rt, pre ss [N]
at the third screen. (Otherwise, you do not need to configure anything on the fourth
screen.)
Logica l Port Pa ramete rs
Table 8-2 Logical Port Parameters
Parameter Valid Values Default Value
Mapped DLC I Number 16–991 16
Blocked Port Flag Y/N N
Priority 0– 9 0
Bandwidth Allocation Group 1–16 0 1
Encapsulation Method RFC149 0, An nex G RFC149 0
Modulo 0 (8) or 1 (128) 0 (Mo dulo 8)
Maximum LAPB Window Size 1–7 or 1–127 27
N2 Retransmit Count 0–20 20
T1 Retransm it Period (msec) 2000–1 5,000 3000
T2 Wait Ack Pe riod (msec) 0–50 00 1000
T3 Link Alive Period (sec) 1–60 5
Logical DCE Y/N Y
Lowest/Highest Incoming Channel 0–4095 3see explanation
Lowest/Highest Two-Way Channel 0–4095 3see explanation
Lowest/Highest Outgoing Channel 0–4095 3see explanation
Flow Control Negotiation Y/N N
Throughput Class Negotiation Y/N N
Local Charging Pr evention Y/N N
Reverse Char g e Acce ptan ce Y/N N
Fast Sel ect Acc eptan ce Y/N N
Incoming Calls Barred Y/N N
Outgoing Calls Barre d Y/N N
Maximum Packet Size 128– 40 96 41024
conti nued on nex t page