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Cisco IOS Release 12.0 Dial Solutions Command Reference
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About This Manual
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Using Cisco IOS Software
- Part 1: Dial-In Port Setup
- Part 2: Dial-In Terminal Service & Remote Node Config
- Part 3: Dial-on-Demand Routing
- Part 4: Dial Backup
- Part 5: NASI Client Commands
- Part 6: Large-Scale Dial Solutions
- Part 7: Cost-Control Solutions
- Part 8: Virtual Private Dialup Networks
- Part 9: Other Network Traffic on ISDN Channels
- Part 10: Dial-Related Addressing Services
- Part 11: Appendixes
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Index
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Table Of Contents
AO/DI Commands
This chapter describes the commands specific to configuring an ISDN D channel to transport X.25 traffic using Always On/Dynamic ISDN (AO/DI).
Refer to the "Configuring X.25 on ISDN" chapter of the Dial Solutions Configuration Guide and "X.25 on ISDN Commands" in the Dial Solutions Command Reference for additional information about configuring X.25 over ISDN.
ppp bap number
To specify a local telephone number that peers can dial to establish a multilink bundle, use the ppp bap number interface configuration command. To remove a previously configured number, use the no form of this command.
ppp bap number {default phone-number | secondary phone-number | prefix prefix-number}
no ppp bap number {default phone-number | secondary phone-number | prefix prefix-number}ppp bap number {format national | subscriber}
no ppp bap number {format national | subscriber}Syntax Description
Default
No base number is provided.
Command Mode
Interface configuration
Usage Guidelines
The ppp bap number command first appeared in Cisco IOS Release 11.3.
The prefix and format keywords first appeared in Cisco IOS Release 11.3 T.Use this command to supply a local default number to be exchanged between peers in order to establish a multilink bundle.
Use the prefix keyword on the AO/DI client side to specify what will precede any number dialed to a multilink peer. This command is used by the client side for dialing instructions when communicating with the server. For example, the client issues a call request to the server whereby the server issues a call response which includes the dialing number the client should use and the format this number should be in (national or subscriber). The client then dials the number supplied by the server, preceded by any prefix information contained in the ppp bap number prefix command. shows an overview about the information exchange between the client and the server.
Use the format keyword on the AO/DI server side to specify how many digits should be returned by BAP. BAP will return the numbers based on either a national or subscriber format. The value that is returned is preceded by the prefix before dialing occurs. For example, if the format national keywords are configured, then the national format (which is equivalent to 10 digits) is returned by BAP (during BAP negotiation) from the server.
Note
The ppp bap number prefix and ppp bap number format keyword options cannot be combined to a single-string command line; they must be entered in two separate command strings.
Figure 5 Client and Server Response Sequence
Use the format keyword its used on the server side to specify how many digits should be returned by BAP. BAP will return the numbers based on either a national or subscriber format. The value that is returned is preceded by the prefix before dialing. For example, if the format national keywords are configured, then the national format (which is equivalent to 10 digits) is returned by BAP (during BACP negotiation), from the server to the client.
This command is applicable on both the dialer interface and the individual physical interfaces.
Examples
In the following example, the AO/DI client uses a ppp bap prefix value of 9, which indicates that the dialed number of 5551234 will be preceded by a 9. The number that is actually dialed is 95551234. The AO/DI server uses a subscriber format, which indicates that when the client asks the server for the numbers to dial, BAP will return 7-digits.
Client router
interface dialer1 ppp bap number prefix 9Server Router
interface dialer1 ppp bap number format subscriber ppp bap number default 5555678In the following example, the AO/DI client uses a ppp bap prefix value of 1, which indicates that the dialed number of 5551234 will be preceded by a 1. The number that is actually dialed is 19195555678 because the server is using a national format, and BAP therefore, returns 10-digits.
Client Router
interface dialer1 ppp bap number prefix 1Server Router
interface dialer1 ppp bap number format national ppp bap number default 9195555678ppp multilink idle-link
To configure the PPP Multilink bundle so that the first link member enters into "receive-only" mode when an additional B channel is added, use the ppp multilink idle-link interface configuration command. To remove this functionality, use the no form of this command.
ppp multilink idle-link
no ppp multilink idle-linkSyntax Description
This command has no keywords or arguments.
Default
Multilink idle-link is not set.
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3 T.
Use this command to ensure that the primary link in the AO/DI bundle enters "receive-only" mode as soon as the first additional B channel is added to the bundle. Additional member links are added to the Multilink PPP bundle in order to increase traffic throughput and are disconnected once the traffic load is reduced. During this timeframe, the X.25 SVC remains active. The dialer load-threshold value determines the traffic threshold limits for the bundle.
Example
The following example configures the interface (dialer interface 1) to add additional links to the MLP bundle once the traffic load on the primary link is reached:
interface dialer1 ppp multilink idle-linkx25 aodi
To enable the AO/DI client on an interface, use the x25 aodi interface configuration command. To remove AO/DI client functionality, use the no form of this command.
x25 aodi
no x25 aodiSyntax Description
This command has no arguments or keywords.
Default
AO/DI client is not enabled.
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3 T.
Use this command to enable the AO/DI client on an interface.
Example
The following example enables the AO/DI client on the interface running X.25, using the x25 aodi command:
interface bri0isdn x25 dchannelisdn x25 static-tei 8interface bri0:0 x25 aodix25 address 12135551234x25 htc 4x25 win 3x25 wout 3x25 map ppp 12135556789 interface dialer 1
Note
x25 map ppp
To enable a PPP session over the X.25 protocol, use the x25 map ppp interface configuration command. To remove a prior mapping, use the no form of this command.
x25 map ppp x121-address interface cloning-interface no-outgoing
no x25 map ppp x121-address interface cloning-interface no-outgoingSyntax Description
Default
Disabled
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3 T.
Use x25 map ppp command to allow a PPP session to run over X.25.
The interface keyword refers to the interface that will be used to clone the configuration.
Note
Client Example
The following example enables the AO/DI client on the interface and configures the D channel (BRI interface 0:0) with the x25 map statement in order to allow PPP sessions over X.25 encapsulation with the configured AO/DI server:
interface BRI0:0x25 address 16193368208 x25 aodi x25 htc 4 x25 win 3 x25 wout 3 x25 map ppp 16193368209 interface dialer 1Server Example
The following example enables the AO/DI server to receive calls from the AO/DI client and configures the D channel (BRI0:0) with the x25 map statement which allows PPP sessions over X.25 encapsulation with the configured AO/DI client. The no-outoing option is used with the x.25 map command since the AO/DI server is receiving, versus initiating, calls.
interface BRI0:0 x25 address 16193368209 x25 htc 4 x25 win 3 x25 wout 3 x25 map ppp 16193368208 interface dialer 1 no-outgoing
Note
