Configuring ISDN BRI Interfaces with Quick Configuration

Physical Interface Description

(Optional) Adds supplemental information about the ISDN physical interface on the device.

Type a text description of the physical ISDN BRI interface in the box to clearly identify it in monitoring displays.

Clocking

Enables internal or external clocking sources for the interface on the device.

• internal—device's own system clock (the default)
• external—Clock received from the T1 interface

Select internal or external from the list.

Dialer Pools

Displays the list of configured ISDN dialer pools on the device.

• To add a dialer pool to the interface, click Add.
• To edit a dialer pool, select the name from the list. You can change the priority, but not the name.
• To delete a dialer pool, select the check box and click Delete.

Dialer Pool Name (required)

Specifies the group of physical interfaces to be used by the dialer interface.

Type the dialer pool name—for example, isdn-dialer-pool.

Priority

Specifies the priority of this interface within the dialer pool. Interfaces with a higher priority are the first to interact with the dialer interface.

1. Type a priority value from 0 (lowest) to 255 (highest). The default is 0.
2. Click OK to return to the Quick Configuration page.

Calling Number

Configures the dialing number used to connect with the service provider.

Type the outgoing calling number for the service provider.

ISDN Switch Type

Specifies the type of ISDN switch used by the service provider.

Select one of the following switch types:

• att5e—AT&T 5ESS
• etsi—NET3 for the UK and Europe
• ni1—National ISDN-1
• ntdms-100—Northern Telecom DMS-100
• ntt—NTT Group switch for Japan

Service Profile Identifier

Service Profile Identifier 2

Configures the service profile identifier (SPID) provided by your ISDN service.

Type the SPID in the box. If you have a NTDMS-100 or NI1 switch, an additional SPID field is provided.

Static TEI Value

Configures the static terminal endpoint identifier (TEI) value from your service provider.

The TEI number identifies a terminal endpoint, an ISDN-capable device attached to an ISDN network through an ISDN interface on the device. The TEI is a number between 0 and 127. The numbers 0–63 are used for static TEI assignment, 64–126 are used for dynamic assignment, and 127 is used for group assignment.

Type a value between 0 and 63. If this value is not supplied, the device dynamically acquires a TEI.

If you configured more than one SPID, the TEI must be acquired dynamically.

TEI Option

Configures when the TEI negotiates with the ISDN provider.

• Select first-call to activate the connection when the call setup is sent to the ISDN provider.
• Select power-up (the default) to activate the connection when the device is powered on.

Timer T310 Value

Sets the Q.931 timer value in seconds.

Type a value between 1 and 65536. The default value is 10 seconds.

Logical Interface Description

Describes the logical interface.

Type a text description of the interface in the box.

IPv4 Addresses and Prefixes

Displays the IPv4 addresses for the interfaces to which the dialer interface is assigned.

Note: Ensure that the same IP subnet address is not configured on different dialer interfaces. Configuring the same IP subnet address on different dialer interfaces can result in inconsistency in the route and packet loss. Packets can be routed through any of the dialer interfaces with the IP subnet address, instead of being routed through the dialer interface to which the ISDN call is mapped.

Type an IP address and a prefix in the boxes. Click Add.

To delete an IP address, highlight it in the list, and click Delete.

Activation Delay

Displays the time to wait before activating the backup interface once the primary interface is down.

Type a value, in seconds—for example, 30.

The default value is 0 seconds with a maximum value of 60 seconds.

Deactivation Delay

Displays the time to wait before deactivating the backup interface once the primary interface is up.

Type a value, in seconds—for example, 30.

The default value is 0 seconds with a maximum value of 60 seconds.

Dial String (required)

Displays the dialing number from your ISDN service provider.

Type the dialing number and click Add.

To delete a dial string, highlight it and click Delete.

Pool (required)

Displays a list of dialer pools configured on br-pim/0/port interfaces.

Select a dialer pool from the list.

Load Interval

Defines the interval used to calculate the average load on the dialer interface for bandwidth on demand.

Type a value, in seconds—for example, 30.

The default value is 60 seconds with a range of 20–80. The value must be a multiple of 10.

Load Threshold

Defines the threshold at which an additional ISDN interface is activated for bandwidth-on-demand. You specify the threshold as a percentage of the cumulative load of all UP links.

Type a percentage—for example, 80.

The default value is 100 with a range of 0–100.

Interface to Backup

Displays a list of interfaces for ISDN backup.

Select an interface from the list for ISDN backup.

IPv4 Addresses and Prefixes

Displays the IPv4 addresses in the list of routes to be monitored by the dialer interface.

Type an IP address and a prefix in the boxes. Click Add.

To delete an IP address, highlight it in the list, and click Delete.