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Setting Up Frame Relay Connections

This chapter covers the following topics:

Before you begin
Using the MAX TNT as a Frame Relay concentrator
Overview of Frame Relay configuration tasks
Setting up the logical link to a Frame Relay switch
Setting up Frame Relay user connections

Before you begin

Before setting up Frame Relay in RADIUS, you must configure a nailed-up T1 PRI link as the physical interface to the Frame Relay switch. Then, make the following settings in the Answer-Defaults profile:

For complete information, see the MAX TNT Network Configuration Guide.

Using the MAX TNT as a Frame Relay concentrator

In a Frame Relay backbone, every access line must connect directly to a Frame Relay switch. You might want to concentrate many low-speed, dial-in connections into one high-speed, nailed-up connection. When you configure the MAX TNT as a Frame Relay concentrator, it accepts incoming dial-in connections as usual and forwards them to a Frame Relay switch (as shown in Figure 7-1).

Figure 7-1. The MAX TNT operating as a Frame Relay concentrator

For the MAX TNT to operate as a Frame Relay concentrator, it must appear as a Frame Relay switch to both MAX TNT users and other Frame Relay switches (such as those from Cascade or Stratacom).

Overview of Frame Relay configuration tasks

To set up the MAX TNT as a Frame Relay concentrator, you must carry out the following tasks:

Setting up the logical link to a Frame Relay switch

You must define the link between the MAX TNT and a Frame Relay switch in a RADIUS Frame Relay profile. The MAX TNT accesses the profile at system startup.

This section begins with a description of the types of logical links you can configure. Then, an overview section describes all the attributes you can set for a Frame Relay profile. The remaining sections describe the required and optional steps for configuring the profile, along with detailed examples.

Types of logical links between the MAX TNT and a Frame Relay switch

The MAX TNT supports the following types of interfaces to the Frame Relay network:

UNI-DCE interfaces

 UNI is the interface between an end user and a network endpoint (a router or a switch) on the Frame Relay network. In this configuration, illustrated in Figure 7-2, the MAX TNT operates as a Frame Relay router communicating with a DTE device. To the DTE device, the MAX TNT appears as a Frame Relay network endpoint.

Figure 7-2. UNI-DCE interface

When you set up a MAX TNT in this configuration, it can perform DCE link management functions. The MAX TNT expects to get regular requests for the status of the link. If the MAX TNT does not receive these requests within the expected interval, it considers the link inactive. The MAX TNT responds to these requests with the status of the link identified by the Data Link Connection Indicator (DLCI).

A RADIUS user profile specifies a DLCI for each user connection. A DLCI is a number from 16 to 991 that the Frame Relay administrator assigns. A DLCI is not an address, but a local label that identifies a logical link between a device and a Frame Relay switch. The switch uses the DLCI to route frames through the network. The DLCI can change as frames pass through multiple switches.

(For an example of setting up a RADIUS Frame Relay profile for a UNI-DCE interface, see Specifying a UNI-DCE interface.)

UNI-DTE interfaces

In a UNI-DTE connection, the MAX TNT is a DTE communicating with a Frame Relay switch (Figure 7-3). The MAX TNT acts as a Frame Relay feeder and can perform DTE functions for link management.

Figure 7-3. UNI-DTE interface

When it performs DTE link management, the MAX TNT regularly requests updates on the status of the link. If the Frame Relay unit at the other end of the link does not respond to the requests, or if the response indicates a DLCI failure, the MAX TNT considers the link inactive. In addition, the MAX TNT can query the device at the other end of the link about the status of the DLCIs in the connection.

(For an example of setting up a RADIUS Frame Relay profile for a UNI-DTE interface, see Specifying a UNI-DTE interface.)

Overview of Frame Relay profile attributes

To configure a Frame Relay profile in RADIUS, you create a pseudo-user profile specifying the attributes listed in Table 7-1.

Table 7-1. Frame Relay profile attributes

Attribute

Description

Possible values
Ascend-Call-Type (177)

 Specifies the type of nailed-up connection in use.

 Nailed (1)
Nailed/Mpp (2)
Perm/Switched (3)

Nailed is the default.

Ascend-Data-Svc (247)

 Specifies the type of data service the link uses for outgoing calls.

 For a complete list of possible settings, see Ascend-Data-Svc (247).

Switched-56K is the default.

Ascend-FR-DCE-N392 (162)

 Specifies the number of errors, occurring during Ascend-FR-DCE-N393-monitored events, that cause the network side to declare the user side's procedures inactive.

 Integer from 1 to 10. The default value is 3.

Ascend-FR-DCE-N393 (164)

 Specifies the maximum value for the DCE-monitored event count.

 Integer from 1 to 10. The default value is 4.

Ascend-FR-DTE-N392 (163)

 Specifies the number of errors, occurring during Ascend-FR-DTE-N393-monitored events, that cause the network side to declare the user side's procedures inactive.

Integer from 1 to 10. The default value is 3.

Ascend-FR-DTE-N393 (165)

 Specifies a maximum value for the DTE-monitored event count.

 Integer from 1 to 10. The default value is 4.

Ascend-FR-Link-Mgt (160)

 Specifies the type of Frame Relay link management in use for the profile.

 Ascend-FR-No-Link-Mgt (0)
Ascend-FR-T1-617D (1)
Ascend-FR-Q-933A (2)

Ascend-FR-No-Link-Mgt is the default.

Ascend-FR-N391 (161)

 Specifies the interval at which the MAX TNT requests a Full Status Report.

 Integer from 1 to 255. The default is 6.

Ascend-FR-Nailed-Grp (158)

 Associates a group of nailed-up channels with the Frame Relay profile.

 Integer from 1 to the maximum number of nailed-up channels your unit allows. The default value is 1.

Ascend-FR-T391 (166)

 Sets the Link Integrity Verification polling timer.

 An integer from 5 to 30. The default value is 10.

Ascend-FR-T392 (167)

 Sets the timer for the verification of the polling cycle (the length of time the unit should wait between Status Enquiry messages). An error results if the MAX TNT does not receive a Status Enquiry message within the specified number of seconds.

 An integer from 5 to 30. The default value is 15.

Ascend-FR-Type (159)

 Specifies the type of Frame Relay connection.

 Ascend-FR-DTE (0)
Ascend-FR-DCE (1)

Ascend-FR-DTE is the default.

Framed-MTU (12)

 Specifies the maximum number of bytes the MAX TNT can receive in a single packet.

 Integer from 128 to 1600. The default value is 1524.

Password (2)

 Specifies the password.

 Alphanumeric string of up to 252 characters. The default value is null.

User-Name (1)

 Specifies the name of the RADIUS Frame Relay profile.

 Alphanumeric string of up to 252 characters. The default value is null.

User-Service (6)

 Specifies whether the link can use framed or unframed services. By default, the MAX TNT does not restrict the services that a link can use.

 Login-User (1)
Framed-User (2)
Dialout-Framed-User (5)

Configuring the required attributes for a Frame Relay profile

When you configure a Frame Relay profile, you must specify:

Specifying the User-Name, Password, and User-Service attributes

 Specify the first line of a pseudo-user profile with the following format:

frdlink-name-num Password="ascend", User-Service=Dialout-Framed-User
where the name argument is the system name of the Ascend unit (the name specified by the Name parameter in the System profile), and num is a number in a sequential series, starting with 1, with no missing numbers. The sequential series must not have any missing numbers, or the MAX TNT will not be able to retrieve the profile correctly.

On the second line, specify the User-Name attribute to indicate the name of the Frame Relay profile. User connections link up with the Frame Relay profile by indicating the profile name. The name must be unique and must not exceed 15 characters.

Specifying nailed-up attributes

Set Ascend-Call-Type=Nailed to specify that the link consists entirely of nailed-up channels. Then, set Ascend-FR-Nailed-Grp to specify the group number of the nailed-up channels.

Specifying the type of Frame Relay link

To specify the type of Frame Relay link in use for the profile, set the Ascend-FR-Type attribute.You can specify one of the values listed in Table 7-2.

Table 7-2. Ascend-FR-Type settings

Setting

Specifies
Ascend-FR-DTE (0)

 UNI-DTE interface (the default). When you use this value, the MAX TNT acts as a DTE that can connect to a Frame Relay switch.

Ascend-FR-DCE (1)

 UNI-DCE interface. When you use this value, the MAX TNT acts as a DCE that can connect to a Frame Relay DTE unit (that is, to the user's CPE).

Configuring optional attributes for a Frame Relay profile

When you set up a Frame Relay profile, you have the option of specifying:

Specifying the link-management protocol

 To specify the link-management protocol the MAX TNT should use during communication with the Frame Relay switch, set the Ascend-FR-Link-Mgt attribute. You can specify one of the settings listed in Table 7-3.

Table 7-3. Ascend-FR-Link-Mgt settings

Setting

Specifies
Ascend-FR-No-Link-Mgt (0)

No link management. This setting is the default. The MAX TNT always considers a link active if no link management functions take place.

Ascend-FR-T1-617D (1)

 T1.617 Annex D link management.

Ascend-FR-Q-933A (2)

 Q.933 Annex A link management.

Specifying DCE attributes

If Ascend-FR-Type=Ascend-FR-DCE, you can set the attributes listed in Table 7-4.

Table 7-4. DCE attributes

Attribute

Description
Ascend-FR-DCE-N392 (162)

 Specifies the number of errors, occurring during Ascend-FR-DCE-N393-monitored events, that cause the network side to declare the user side's procedures inactive. Enter an integer from 1 to 10, or accept the default of 3.

Ascend-FR-DCE-N393 (164)

 Specifies the maximum value for the DCE-monitored event count.Enter an integer from 1 to 10, or accept the default of 4.

Ascend-FR-T392 (167)

 Sets the timer for the verification of the polling cycle (the length of time the unit should wait between Status Enquiry messages). An error results if the MAX TNT does not receive a Status Enquiry message within the specified number of seconds. Enter an integer from 5 to 30, or accept the default of 15.

Specifying DTE attributes

If Ascend-FR-Type=Ascend-FR-DTE, you can set the attributes listed in Table 7-5.

Table 7-5. DTE attributes

Attribute

Description
Ascend-FR-N391 (161)

 Specifies the interval at which the MAX TNT requests a Full Status Report. Enter an integer from 1 to 255, or accept the default of 6.

Ascend-FR-DTE-N392 (163)

 Specifies the number of errors, occurring during Ascend-FR-DTE-N393-monitored events, that cause the network side to declare the user side's procedures inactive. Enter an integer from 1 to 10, or accept the default of 3.

Ascend-FR-DTE-N393 (165)

 Specifies a maximum value for the DTE-monitored event count. Enter an integer from 1 to 10, or accept the default of 4.

Ascend-FR-T391 (166)

 Sets the Link Integrity Verification polling timer. Enter an integer from 5 to 30, or accept the default of 10.

Specifying the maximum packet size

Set the Framed-MTU attribute to the maximum number of bytes the MAX TNT can receive in a single packet. Enter an integer from 128 to 1600, or accept the default of 1524.

Note: For a link between a Cisco unit and the MAX TNT, you must set Framed-MTU=1508 when the Cisco unit accepts its own default of 1500. When you make this setting, the maximum length of packets sent by the MAX TNT or the Cisco unit is 1500 bytes.

Specifying the data service

To specify the data service the link can use, set the Ascend-Data-Svc attribute. For a complete list of settings, see Ascend-Data-Svc (247).

Sample RADIUS Frame Relay profile configurations

This section shows a sample RADIUS Frame Relay profile configuration for each type of Frame Relay interface-UNI-DCE and UNI-DTE.

Specifying a UNI-DCE interface

In Figure 7-4, the MAX TNT acts as a Frame Relay switch with a UNI-DCE interface to Customer Premises Equipment (CPE).

Figure 7-4. UNI-DCE interface to an endpoint (DTE)

In this example, to set up a Frame Relay profile called FR Prof 1 with a UNI-DCE interface, you would enter the following specifications:

frdlink-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

     User-Name="FR Prof 1",

     Ascend-FR-Type=Ascend-FR-DCE,

     Ascend-FR-Nailed-Grp=1,

     Ascend-Data-Svc=Nailed-64K,

     Ascend-FR-Link-Mgt=Ascend-FR-T1-617D

Specifying a UNI-DTE interface

 In Figure 7-5, the MAX TNT has a nailed connection to a Frame Relay switch. The Frame Relay switch has a UNI-DCE interface, and the MAX TNT has a UNI-DTE interface to that switch.

Figure 7-5. UNI-DTE interface to a Frame Relay switch

In this example, to set up a Frame Relay profile called FR Prof 2 with a UNI-DTE interface, you would enter the following specifications:

frdlink-MAXTNT-2 Password="ascend", User-Service=Dialout-Framed-User

     User-Name="FR Prof 2",

     Ascend-FR-Type=Ascend-FR-DTE,

     Ascend-FR-Nailed-Grp=1,

     Ascend-Data-Svc=Nailed-64K,

     Ascend-FR-Link-Mgt=Ascend-FR-T1-617D,

     Ascend-FR-N391=20

Setting up Frame Relay user connections

You must configure a Frame Relay connection for each user that will access a Frame Relay link.

The MAX TNT supports three types of Frame Relay user connections: gateway, circuit, and direct. After an overview section of all the attributes you must set up for a Frame Relay user connection, this section describes the tasks you must carry out regardless of the type of user connection you wish to configure. The remaining subsections describe the configuration steps necessary for each specific type, and provide sample profiles.

Types of Frame Relay user connections

This section describes the types of Frame Relay user connections you can configure.

Gateway connections

A gateway connection is a routing link. The MAX TNT receives an incoming PPP call, examines the destination IP address, and brings up the appropriate RADIUS profile to the destination. If the RADIUS user profile specifies Frame Relay encapsulation, a Frame Relay profile, and a DLCI, the MAX TNT encapsulates the packets in Frame Relay (RFC 1490) and forwards the data stream out to the Frame Relay switch. The Frame Relay switch uses the DLCI to route the frames.

Figure 7-6 illustrates a gateway connection.

Figure 7-6. Gateway connection

(For information about setting up a RADIUS user profile for a gateway connection, see Configuring a Frame Relay gateway connection.)

Circuit connections

A circuit is a connection that follows a specified path through the Frame Relay switch, as shown in Figure 7-7.

Figure 7-7. Circuit connection

By linking two DLCI endpoints, the MAX TNT creates a Permanent Virtual Circuit (PVC). The two DLCI endpoints act as a tunnel. Data that the MAX TNT receives on one DLCI bypasses the Ascend router and goes out on the other DLCI. The inbound DLCI and outbound DLCI must each be specified in a separate RADIUS user profile (or Connection profile). The two DLCIs can use the same Frame Relay profile or different ones. The connection requires two and only two DLCI numbers. You cannot specify duplicate DLCIs, except when they are carried by separate physical links specified in different Frame Relay profiles.

The MAX TNT drops data if the circuit has only one DLCI defined in a single profile, and uses only two DLCIs if more are configured in multiple profiles. The MAX TNT switches data coming in one DLCI to the other DLCI. If any one of the DLCIs in a PVC becomes inactive because of disconnect or failure, the PVC using that DLCI becomes inactive. A physical line can carry multiple DLCIs, and the failure of the line causes the failure of all DLCIs it carries.

For information about setting up a RADIUS user profile for a circuit connection, see Configuring a Frame Relay circuit connection.

Direct connections (rarely used)

When the MAX TNT receives an incoming PPP call for a direct connection, it ignores the destination IP address in the packet from the dial-in client. Instead, it uses the specified DLCI to route the packet. In effect, the MAX TNT does not route packets from the client in the usual sense. It simply passes them on to the Frame Relay network, and assumes that another device will route the packets on the basis of the destination IP address.

A Frame Relay direct connection is not a full-duplex tunnel between the PPP dial-in and the switch. The MAX TNT router handles the IP packets coming back from the Frame Relay switch, so the packets must contain the PPP caller's IP address for proper routing back across the WAN.

Figure 7-8 shows two incoming PPP connections that are redirected out to the Frame Relay network.

Figure 7-8. Direct connection

This type of connection is not commonly used. (For information about setting up a direct connection in a RADIUS user profile, see Configuring a Frame Relay direct connection.)

Overview of Frame Relay connection attributes

To configure the Frame Relay user connection in RADIUS, you create a pseudo-user profile by specifying the attributes listed in Table 7-6.

Table 7-6. RADIUS user profile attributes for a Frame Relay connection

Attribute

Description

Possible values
Ascend-FR-Circuit-Name (156)

 Specifies the PVC for which this profile is an endpoint.

Text string of up to 15 characters. The default value is null.

Ascend-FR-Direct (219)

 Specifies whether the Ascend unit creates a direct connection to the Frame Relay switch.

FR-Direct-No (0)
FR-Direct-Yes (1)

FR-Direct-No is the default.

Ascend-FR-Direct-DLCI (221)

 Specifies the Data Link Connection Indicator (DLCI) for a direct connection.

 Integer from 16 to 991. The default value is 16.

Ascend-FR-Direct-Profile (220)

 Specifies the name of the Frame Relay profile that carries the direct connection to the Frame Relay switch.

 Text string of up to 15 alphanumeric characters. The default value is null.

Ascend-FR-DLCI (179)

 Specifies the Data Link Connection Indicator (DLCI) for a gateway or circuit connection.

 Integer from 16 to 991. The default value is 16.

Ascend-FR-Profile-Name (180)

 Specifies the name of the Frame Relay profile to use in building a gateway or circuit connection.

 Text string of up to 15 alphanumeric characters. The default value is null.

Framed-Protocol (7)

 Specifies the type of protocol the link can use.

PPP (1)
SLIP (2)
ARA (255)
MPP (256)
FR (261)
FR-CIR (263)

By default, the MAX TNT does not restrict the type of protocol a link can use.

Password (2)

 Specifies the user's password.

 Alphanumeric string of up to 252 characters. The default value is null.

User-Name (1)

 Specifies the name of the remote user or device.

 Alphanumeric string of up to 252 characters. The default value is null.

User-Service (6)

 Specifies whether the link can use framed or unframed services. By default, the MAX TNT does not restrict the services that a link can use.

 Login-User (1)
Framed-User (2)
Dialout-Framed-User (5)

Configuring any type of Frame Relay user connection

Regardless of the type of Frame Relay user connection you plan to configure, you must carry out the tasks described in this section. Then, to complete the tasks for the specific type of Frame Relay connection you wish to set up, you must refer to the section that describes that type of configuration. For any type of Frame Relay user connection, create the first line of the pseudo-user profile as follows:

permconn-name-num Password="ascend", User-Service=Dialout-Framed-User
where the name argument is the system name of the Ascend unit (the name specified by the Name parameter in the System profile), and num is a number in a sequential series, starting with 1. The sequential series must not have any missing numbers, or the MAX TNT will not be able to retrieve the profile correctly. On the second line of the user profile, set the User-Name attribute to the name of the user that can make the Frame Relay connection.

Configuring a Frame Relay gateway connection

To configure a Frame Relay gateway connection in a RADIUS user profile, proceed as follows. All steps are required.

  1. Perform the tasks described in Configuring any type of Frame Relay user connection.

  2. Set Ascend-FR-Direct=FR-Direct-No.

  3. Set Ascend-FR-Profile-Name to the value of the User-Name attribute that appears on the second line of the Frame Relay profile. This setting indicates the name of the Frame Relay profile the MAX TNT uses when building the connection.

  4. Set the Ascend-FR-DLCI attribute to the DLCI value assigned by your Frame Relay network administrator. Each user profile that specifies a gateway connection is a separate logical link and must have a separate DLCI.

  5. Set Framed-Protocol=FR.

  6. Set Ascend-Route-IP=Route-IP-Yes.

  7. Set the Framed-Route attribute to the IP address of the remote router.

Configuring a Frame Relay circuit connection

 To set up a Frame Relay circuit connection in a RADIUS user profile, proceed as follows. All steps are required.

  1. Perform the tasks described in Configuring any type of Frame Relay user connection.

  2. Set Ascend-FR-Profile-Name to the value of the User-Name attribute that appears on the second line of the Frame Relay profile. This setting indicates the name of the Frame Relay profile the MAX TNT uses when building the connection.

  3. Set the Ascend-FR-DLCI attribute to the DLCI value assigned by your Frame Relay network administrator. Each user profile that specifies a gateway connection is a separate logical link and must have a separate DLCI.

  4. Set Framed-Protocol=FR-CIR.

  5. Set Ascend-FR-Circuit-Name to a text string identifying the PVC. Because the MAX TNT connects pairs of links with matching Ascend-FR-Circuit-Name attributes, you must specify the exact same value for Ascend-FR-Circuit-Name in each profile.

  6. Configure the routing setup in the MAX TNT for the WAN connection.

    (For details, see Chapter 9, Setting Up IP Routing for WAN Links and Chapter 10, Setting Up IPX Routing for WAN Links in this guide, and the relevant chapters of the MAX TNT Network Configuration Guide.)

Configuring a Frame Relay direct connection

 To configure a Frame Relay direct connection in a RADIUS user profile, proceed as follows. All steps are required.

  1. Perform the tasks described in Configuring any type of Frame Relay user connection.

  2. Set Ascend-FR-Direct=FR-Direct-Yes.

  3. Set Ascend-FR-Direct-Profile to the value of the User-Name attribute that appears on the second line of the Frame Relay profile. This setting indicates the name of the Frame Relay profile the MAX TNT uses when building the connection.

  4. Set the Ascend-FR-Direct-DLCI attribute to indicate the DLCI that identifies the user profile to the Frame Relay switch. Many direct connections can use the same DLCI.

  5. Set Framed-Protocol=PPP.

  6. Configure the incoming PPP or MP+ connection as described in Setting up a dial-in PPP, MP, or MP+ connection.

  7. Configure the routing setup in the MAX TNT for the WAN connection.

    (For details, see Chapter 9, Setting Up IP Routing for WAN Links and Chapter 10, Setting Up IPX Routing for WAN Links in this guide, and the relevant chapters of the MAX TNT Network Configuration Guide.)

Sample RADIUS Frame Relay user profile configurations

 This section shows a Frame Relay user profile for each type of user connection: gateway, circuit, and direct.

Specifying a gateway connection

The following example shows how to set up a Frame Relay gateway connection for the configuration in Figure 7-9.

Figure 7-9. Specifying a gateway connection

In this example, the MAX TNT uses a Frame Relay profile named PacBell to communicate with a remote Frame Relay switch:

frdlink-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="PacBell",

   Ascend-FR-Type=Ascend-FR-DTE,

   Ascend-FR-Nailed-Grp=1,

   Ascend-FR-Link-Mgt=Ascend-FR-T1-617D,

   Ascend-FR-N391=20
To configure user profiles for the clients connecting to the remote IP network, you would specify the following settings:

permconn-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name-"Terry",

   Ascend-FR-Profile-Name="PacBell",

   Ascend-FR-DLCI=57,

   Ascend-Route-IP=Route-IP-Yes,

   Framed-Protocol=FR,

   Framed-Route="10.0.200.33/29 10.0.200.37 1 n remote_router "

permconn-MAXTNT-2 Password="ascend", User-Service=Dialout-Framed-User

   User-Name-"Stephanie",

   Ascend-FR-Profile-Name="PacBell",

   Ascend-FR-DLCI=57,

   Ascend-Route-IP=Route-IP-Yes,

   Framed-Protocol=FR,

   Framed-Route="10.0.200.33/29 10.0.200.37 1 n remote_router "

permconn-MAXTNT-3 Password="ascend", User-Service=Dialout-Framed-User

   User-Name-"Catherine",

   Ascend-FR-Profile-Name="PacBell",

   Ascend-FR-DLCI=57,

   Ascend-Route-IP=Route-IP-Yes,

   Framed-Protocol=FR,

   Framed-Route="10.0.200.33/29 10.0.200.37 1 n remote_router "

Specifying a circuit connection

 The following configuration sets up a circuit between UNI-DCE and UNI-DTE interfaces. The sample network looks like the one in Figure 7-10.

Figure 7-10. Specifying a circuit connection

The Frame Relay profile for the UNI-DCE interface in the MAX TNT is named FR Prof 1. For the UNI-DTE interface, the Frame Relay profile is named FR Prof 2.

You would configure the Frame Relay profile as follows to specify the UNI-DCE interface:

frdlink-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="FR Prof 1",

   Ascend-FR-Type=Ascend-FR-DCE,

   Ascend-FR-Nailed-Grp=1,

   Ascend-FR-Link-Mgt=Ascend-FR-T1-617D
You would configure the Frame Relay profile as follows to specify the UNI-DTE interface:

frdlink-MAXTNT-2 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="FR Prof 2",

   Ascend-FR-Type=Ascend-FR-DTE,

   Ascend-FR-Nailed-Grp=1,

   Ascend-FR-Link-Mgt=Ascend-FR-T1-617D
The two user profiles are called Endpoint1 and Endpoint2. To configure the profiles, you would specify the following settings:

permconn-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="EndPoint1",

   Ascend-FR-Profile-Name="FR Prof 1",

   Ascend-FR-DLCI=16,

   Ascend-FR-Circuit-Name="Circuit1",

   Framed-Protocol=FR-CIR

permconn-MAXTNT-2 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="EndPoint2",

   Ascend-FR-Profile-Name="FR Prof 2",

   Ascend-FR-DLCI=23,

   Ascend-FR-Circuit-Name="Circuit1",

   Framed-Protocol=FR-CIR
Setting Framed-Protocol=FR-CIR specifies that the packets the MAX TNT transmits and receives over the link do not go through the MAX TNT unit's router. Setting the Ascend-FR-Circuit-Name attribute to the same value in both user profiles tells the MAX TNT to pass packets transparently between FR Prof 1 (DLCI 16) and FR Prof 2 (DLCI 23).

Specifying a direct connection

This example shows how to configure two PPP dial-in connections for the MAX TNT to redirect to the Frame Relay network shown in Figure 7-11.

Figure 7-11. Specifying a direct connection

In this example, the MAX TNT uses a Frame Relay profile named PacBell to communicate with a Frame Relay switch. You would configure the Frame Relay profile as follows:

frdlink-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="PacBell",

   Ascend-FR-Type=Ascend-FR-DTE,

   Ascend-FR-Nailed-Grp=1,

   Ascend-FR-Link-Mgt=Ascend-FR-T1-617D,

   Ascend-FR-N391=20
To set up the user profiles for the direct connection that uses DLCI 72, you would enter the following specifications:

permconn-MAXTNT-1 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="Michael",

   Ascend-FR-Direct-Profile="PacBell",

   Ascend-FR-DLCI=72,

   Framed-Protocol=PPP

permconn-MAXTNT-2 Password="ascend", User-Service=Dialout-Framed-User

   User-Name="Grace",

   Ascend-FR-Direct-Profile="PacBell",

   Ascend-FR-DLCI=72,

   Framed-Protocol=PPP

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