Configuring Bandwidth-on-Demand (Optional)

Task

J-Web Configuration Editor

CLI Configuration Editor

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 dialer interface name, click Edit.

From the top of the configuration editor, enter

edit interfaces dl0

Configure multilink properties on the dialer interface.

1. Select multilink-ppp as the encapsulation type.

From the [edit interfaces dl0] hierarchy, enter

set encapsulation multilink-ppp

Configure the dialer options.

• Dial string—Telephone number for the interface to dial that establishes ISDN connectivity—for example, 4085551515.
• Idle timeout—Time a connection is idle before disconnecting—for example, 300. Default value is 120 seconds with a range from 0 to 4294967295.
• Load interval—Interval of time between average network load calculations—for example, 90. Default value is 60 seconds with a range of 20-180 seconds incremented in 10 seconds.
• Load threshold—Percentage of load on all links—for example 90. Default value is 100 with a range from 0 to 100.
• Pool—Name of a group of ISDN interfaces configured to use the dialer interface–for example, 3.

1. In the Unit section, click Dialer options under Encapsulation.
2. Next to Dial string, click Add new entry.
3. In the Value box, type 4085551515 and click OK.
4. In the Idle timeout box, type 300.
5. In the Load interval box, type 90.
6. In the Load threshold box, type 95.
7. In the Pool box, type bw-pool.
8. Click OK.

1. Enter

   edit unit 0

2. Enter

   edit dialer-options

3. Enter

   set dial-string 4085551515

4. Enter

   set idle-timeout 300

5. Enter

   set load-interval 90

6. Enter

   set load-threshold 95

7. Enter

   set pool bw-pool

Configure unit properties.

To configure a multiple dialer interfaces for bandwidth-on-demand, increment the Unit number—for example, dl0.1, dl0.2, and so on.

F max period is the maximum number of compressed packets between transmission of full packets. The value can be between 1 and 65535.

1. Next to Compression, select Yes, and then Configure.
2. Select Rtp, and then Configure.
3. In the F max period box, type 100.
4. Next to Queues, click Add new entry.
5. From the Value list, select q3. Then click OK and OK again.

1. From the edit interfaces dl hierarchy, enter

   edit unit 0

2. Enter

   set compression rtp f-max-period 500 queues q3

Configure logical properties.

Maximum received reconstructed unit (MRRU) is expressed as a number between 1500 and 4500 bytes—for example, 1500.

1. In the Fragment threshold box, type 1024.
2. In the Mrru box, type 1500.

1. Enter

   set fragment-threshold 1024

2. Enter

   set mrru 1500

Configure PPP options.

You can also configure the following compression types:

• acfc (address and control field compression)—Conserves bandwidth by compressing the address and control fields of PPP-encapsulated packets.
• pfc (protocol field compression)—Conserves bandwidth by compressing the protocol field of a PPP-encapsulated packet.

1. Next to Ppp options, click Configure.
2. Next to Chap, click Configure.
3. In the Access profile box, type bw-profile.
4. Click OK and OK again.
5. Under Compression, select acfc.

1. Enter

   edit ppp-options chap bw-profile

2. Enter

   edit ppp-options compression acfc

Configure the Family Inet properties.

You can also configure the Inet properties to use unnumbered-address with the source interface as lo-0/0/0 and then set an IP address—for example, 172.13.31.1, as the destination.

1. Next to Inet, select Yes and click Configure.
2. Next to Negotiate address, select Yes.
3. Select Unnumbered address, and then Configure.
4. In the Destination box, type 172.31.13.1 as the destination.
5. In the Source box, type lo-0/0/0 as the source interface.
6. Click OK.

1. Enter

   set family inet negotiate-address

2. To use the unnumbered-address option, enter

   set family inet unnumbered address lo-0/0/0 destination 172.13.31.1

Task

J-Web Configuration Editor

CLI Configuration Editor

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

Configure dialer options for each ISDN interface by following the instructions in Table 47.

Each ISDN interface must have the same pool identifier to participate in bandwidth on demand.

You can group up to four br interfaces together when configuring bandwidth-on-demand with a total of eight B-channels providing connectivity.

1. Next to the interface name, click Dialer options.
2. Next to Pool, click Add new entry.
3. In the Pool identifier box, type the name of the dialer pool—for example, bw-pool.
4. Click OK.

Enter

edit interfaces br-1/0/3 dialer options pool bw-pool