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This chapter describes the commands specific to configuring X.25 on an ISDN BRI D channel.
For ISDN BRI commands, see the "ISDN Basic Rate Service Setup Commands" chapter in this manual. For the X.25 commands used to complete the configuration, see the "X.25 and LAPB Commands" chapter in the Wide-Area Networking Command Reference.
For information about the configuration tasks, see the "Configuring X.25 on ISDN" chapter of the Dial Solutions Configuration Guide.
To configure a Basic Rate Interface (BRI) interface and enter interface configuration mode, use the interface bri global configuration command.
interface bri numberTo configure a BRI subinterface only, use the following form of the interface bri global configuration command:
interface bri number.subinterface-number [multipoint | point-to-point]To specify the BRI interface that is created by enabling X.25 on a specified ISDN BRI interface, use the interface bri command with a subinterface 0 specification:
interface bri number:0The default mode for subinterfaces is multipoint.
This command first appeared in Cisco IOS Release 10.3. The capability to carry X.25 traffic on the D channel was added in Cisco IOS Release 11.2 F.
This command was modified in Cisco IOS Release 11.2 P to include slot/port syntax for the PA-8B-ST and PA-4B-U port adapters on Cisco 7200 series routers.
Subinterfaces can be configured to support partially meshed Frame Relay networks. (Refer to the "Configuring Frame Relay" chapter in the Wide-Area Networking Configuration Guide.)
interface bri0 isdn x25 dchannel isdn x25 static-tei 8 ! interface bri0:0 ip address 10.1.1.2 255.255.255.0 x25 address 31107000000100 x25 htc 1 x25 suppress-calling-address x25 facility windowsize 2 2 x25 facility packetsize 256 256 x25 facility throughput 9600 9600 x25 map ip 10.1.1.3 31107000000200
You can use the master indexes or search online to find documentation of related commands.
dialer map
dialer-group
encapsulation ppp
isdn spid1
isdn spid2
ppp authentication chap
ppp authentication pap
show interfaces bri
This command has no arguments or keywords.
Disabled
Interface configuration
This command first appeared in Cisco IOS Release 11.2 F.
This command creates a new, configurable interface, which can be specified as interface brix:0 in commands, where x is the original BRI interface number.
For example, on a Cisco 4500 router with an MBRI, if the isdn x25 dchannel command is configured on bri5, the new interface is bri5:0 and can be used for configuring the other parameters for X.25 over the D channel. These parameters include the addresses, the map statements, and others.
To display the new interface, use the show running config command.
The following example creates interface bri 1:0 and configures it for X.25 over the ISDN D channel. This example uses dynamic TEIs, not a static TEI.
interface bri1 isdn x25 dchannel ! interface bri1:0 ip address 10.1.1.2 255.255.255.0 x25 address 31107000000100 x25 htc 1 x25 suppress-calling-address x25 facility windowsize 2 2 x25 facility packetsize 256 256 x25 facility throughput 9600 9600 x25 map ip 10.1.1.3 31107000000200 x25 map ip 10.1.1.4 31107000000800
You can use the master indexes or search online to find documentation of related commands.
interface bri
| tei-number | Terminal endpoint identifier, in the range 0 to 63. |
Disabled
Interface configuration
This command first appeared in Cisco IOS Release 11.2 F.
Some switches require a static TEI be used for X.25 over the ISDN D channel.
When the isdn x25 dchannel command is invoked without the isdn x25 static-tei command, a dynamic TEI is chosen.
The following example creates static TEI 8 on the X.25-over-ISDN-D channel:
interface bri0 isdn x25 dchannel isdn x25 static-tei 8
Because the isdn x25 static-tei command is missing, the following example configuration sets dynamic TEIs for the ISDN channel:
interface bri0 isdn x25 dchannel
You can use the master indexes or search online to find documentation of related commands.
interface bri
isdn x25 dchannel
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