3Com MSR 50 Series Configuration Manual page 529

Table 25 Create a sub-interface
Operation
Enter serial interface view
Set the link-layer protocol of
the interface to frame relay
Return to system view
Create an sub-interface for
the serial interface and enter
the corresponding view
2 Configure relevant operation parameters
On sub-interfaces of a WAN interface with link-layer protocol being frame relay,
you can configure:
Frame relay address mapping different from the that of the WAN interface (also
■
known as the primary interface)
IP addresses in a network segment different from the network segment that
■
the WAN interface resides
IPX network numbers and IPX operation parameters different from those of the
■
WAN interface
Virtual circuits corresponding to a sub-interface
■
For the detailed configuration information, refer to
on page 235 and "IPX Configuration" on page
Configure sub-interfaces for a WAN interface with link-layer protocol
being X.25
1 Create a sub-interface
Table 26 Create a sub-interface
Operation
Enter system view
Enter serial interface view
Set the link-layer protocol of
the interface to X.25
Return to system view
Create an sub-interface for
the serial interface and enter
the corresponding view
2 Configure relevant operation parameters
On sub-interfaces of a WAN interface with link-layer protocol being X.25, you can
configure:
Command
interface serial
interface-number
link-protocol fr
[ nonstandard | ietf | mfr
interface-number]
quit
interface serial
interface-number.subnumber
[ p2mp | p2p ]
2217.
Command
system-view
interface serial
interface-number
link-protocol x25 [ dte |
dce ] [ ietf | nonstandard ]
quit
interface serial
interface-number.subnumber
[ p2mp | p2p ]
Sub-interface
Description
Required
Required
By default, the link-layer
protocol of an interface is PPP.
Required
Required
By default,
point-to-multipoint
sub-interfaces are created.
"Frame Relay Configuration"
Description
-
Required
Required
By default, the link-layer
protocol of an interface is PPP.
Required
Required
By default,
point-to-multipoint
sub-interfaces are created.
529