Configuring Dialer Watch (Optional)

Navigate to the Interfaces level in the configuration hierarchy.

1. In the configuration editor hierarchy, select Configuration>View and Edit>Edit Configuration.
2. Next to Interfaces, click Configure or Edit.

From the top of the configuration hierarchy, enter

edit interfaces dl0

Create the new interface—for example, dl0.

Adding a description, such as dialer-watch, can help you identify one dialer interface from another.

1. Next to Interface, click Add new entry.
2. In the Interface name box, type dl0.
3. In the Description box, type dialer-watch.
4. Click OK.

Enter

set description dialer-watch

Configure encapsulation options.

• cisco-hdlc—Cisco-compatible High-level Data Link Control is a group of protocols for transmitting data between network points.
• ppp—Point-to-Point Protocol is a protocol used for communication between two computers using a serial interface.

1. In the Encapsulation column, next to the interface, click Edit.
2. From the Encapsulation list, select cisco-hdlc.

Enter

set encapsulation cisco-hdlc

Set a hold-time value, in milliseconds, to be used when negotiating a connection with the peer—for example, 60. The hold time is three times the interval at which keepalive messages are sent.

1. Under the Hold time section, type 60 in the Down box.
2. In the Up box, type 60.

1. Enter

   set hold-time down 60

2. Enter

   set hold-time up 60

Create the logical unit properties—for example, 0.

1. Next to Unit, click Add new entry.
2. In the Interface unit number box, type 0.
3. Next to Dialer options, select Yes, and then click Configure.

Enter

edit interfaces dl0 unit 0

Configure dialer options.

• Activation delay—Time, in seconds, to wait before activating the backup interface once the primary interface is down—for example, 30. Default value is 0 seconds with a maximum value of 60 seconds. Use only for dialer backup and dialer watch.
• Deactivation delay—Time, in seconds, to wait before deactivating the backup interface once the primary interface is up—for example, 30. The default value is 0 seconds with a maximum value of 60 seconds. Use only for dialer backup and dialer watch.
• Dialer string—Telephone number for the interface to dial that establishes ISDN connectivity—for example, 8005555555.
• Idle timeout—Time a connection is idle before disconnecting—for example, 30. Default value is 120 seconds with a range from 0 to 4294967295.
• Initial route check—Time to wait before checking if the primary interface is up—for example, 30. Default value is 120 seconds with a range of 1 to 300 seconds.
• Pool—Name of a group of ISDN interfaces configured to use the dialer interface—for example, dw-group.

1. In the Activation delay box, type 60.
2. In the Deactivation delay box, type 60.
3. In the Dialer string box, type 18005555555.
4. In the Idle timeout box, type 30.
5. In the Initial route check box, type 30.
6. In the Pool box, type dw-group.

1. Enter

   edit dialer-options

2. Enter

   set activation-delay 60

3. Enter

   set deactivation-delay 60

4. Enter

   set dial-string 18005555555

5. Enter

   set dialer-options idle-timeout 30

6. Enter

   set initial-route-check 30

7. Enter

   set pool dw-group

Configure the list of routes for dialer watch—for example, 172.27.27.0/24.

1. Next to Watch list, click Add new entry.
2. In the Prefix field, type 172.27.27.0/24.

Enter

set watch-list 172.27.27.0/24

Configure an IP address for the dialer interface—for example, 10.1.1.2/24.

1. Under Family, next to Inet, select Yes, and then click Configure.
2. Next to Address, click Add new entry.
3. In the Source box, type 10.1.1.2/24.
4. Click OK.

From the [edit interfaces dl0 unit 0] hierarchy, enter

edit family inet 10.1.1.2/24

Navigate to the Interfaces level in the configuration hierarchy.

1. In the configuration editor hierarchy, select Configuration>View and Edit>Edit Configuration.
2. Next to Interfaces, click Edit.
3. Next to the ISDN interface name, click Edit.

From the top of the configuration hierarchy, enter

edit interfaces br-1/0/3 dialer options pool dw-group

Configure dialer watch options for each ISDN interface participating in the dialer watch feature.

Each ISDN interface must have the same pool identifier to participate in dialer watch. Therefore, the dialer watch interface configured in Table 50 is used when configuring the ISDN interface.

1. Next to the interface name, click Dialer options.
2. Next to Pool, click Add new entry.
3. In the Pool identifier field, type dw-group.
4. Click OK.