3Com MSR 50 Series Configuration Manual page 298

298 C 14: X.25
HAPTER AND
LAPB C
ONFIGURATION
To do...
Enter system view
Enter interface view
Set the queue length of X.25
VC
Broadcast via X.25
Generally, internetworking protocols will need to send some broadcast datagrams
for specific purposes. On the broadcasting physical networks (such as Ethernet),
such requirements are naturally supported. However, for non-broadcasting
networks like X.25, how to realize the broadcasting?
You can determine whether to copy and send a broadcast to a destination. This is
very important. For instance, you must enable X.25 to send broadcast datagrams
so that broadcast-based application layer routing protocols can interact route
information on an X.25 network.
You can enable a VC to send broadcasting datagrams, regardless whether it is an
SVC or PVC.
To broadcast via X.25, use the following commands:
To do...
Enter system view
Enter interface view
Enable to send broadcasting
packets to the peer of the
SVC associated with this
address mapping
Enable to send broadcasting
packets to the peer of this
PVC
Restrict the use of address mapping
Before a destination is called, this destination must be found in the address
mapping table. Before a call is received, the source of this call must also be found
in the address mapping table. However, in some cases, some address mappings
are used for calling out only, while others are used for calling in only.
To restrict the use of address mapping, use the following commands:
To do...
Enter system view
Enter interface view
Disable initiating calls using
an address mapping
Disable accepting calls using
an address map
Use the command...
system-view
interface interface-type
interface-number
x25 queue-length
queue-size
Use the command...
system-view
interface interface-type interface-number
x25 map protocol-type protocol-address
x121-address x.121-address broadcast
x25 pvc pvc-number protocol-type
protocol-address x121-address
x.121-address broadcast
Use the command...
system-view
interface interface-type interface-number
x25 map protocol-type protocol-address
x121-address x.121-address no-callout
x25 map protocol-type protocol-address
x121-address x.121-address no-callin
Remarks
-
-
Optional
Defaults to 200
Remarks
-
-
Required
Remarks
-
-
Required
Required