J-series Services Router Features

This section describes the new J-series Services Routers features, available with the JUNOS 7.5R4 release. For more information, see the following manuals:

• J-series Services Router Getting Started Guide
• J-series Services Router Basic LAN and WAN Access Configuration Guide
• J-series Services Router Advanced WAN Access Configuration Guide
• J-series Services Router Administration Guide

For more information about the JUNOS Internet software that runs on Services Routers, see the manuals listed in Table 4.

Interfaces and Chassis

• The J-series Services Router now supports ISDN callback and accepts incoming calls from other locations (ISDN dial-in). These two features allow greater flexibility for ISDN configurations. To configure the router to accept incoming calls, include the incoming-map statement at the [edit interfaces dialer-interface unit logical-unit-number dialer-options] hierarchy level. To configure the router for callback, include the callback statement at the [edit interfaces dialer-interface unit logical-unit-number dialer-options] hierarchy level.
• The J2300 Services Routers are now available in the following chassis types:
  • Dual-port G.SHDSL
  • Dual-port G.SHDSL with ISDN BRI S/T

  Each new chassis includes a pair of 2-port symmetric high-speed digital subscriber line (G.SHDSL) interfaces that can be configured in 2-port two-wire G.SHDSL Annex A or Annex B mode. Chassis with both G.SHDSL and ISDN interfaces can be configured to use the ISDN interface as a backup connection for the ATM-over-SHDSL interface.

  You can configure an Asynchronous Transfer Mode (ATM) interface over G.SHDSL to send network traffic through a point-to-point connection to a DSL access multiplexer (DSLAM).

  The G.SHDSL interfaces support ITU-T G.991.2 (G.SHDSL specifications), ITU-T  994.1 (G.HS specifications), and ITU-T 997.1 (Physical layer management). To configure an ATM-over-SHDSL interface:

  1. Navigate to Configuration>Quick Configuration>Interfaces. Add an at-pim/0/port interface, and assign ATM physical properties.
  2. Set the ATM-over-SHDSL annex type (Annex A or Annex B), and configure other ATM-over-SHDSL physical properties.
  3. Assign ATM logical interface properties.

  You can also use the CLI to configure the ATM-over-SHDSL interface by identifying the chassis slot and mode at the [edit chassis fpc] hierarchy level and then configuring ATM-over-SHDSL properties at the [edit interfaces at-pim/0/port] hierarchy level. For more information, see the J-series Services Router Basic LAN and WAN Access Configuration Guide.

• The J2300 Services Router now supports an ISDN interface as a backup interface for G.SHDSL. For more information about configuring ISDN interfaces as backup interfaces, see the J-series Services Router Basic LAN and WAN Access Configuration Guide.

J2300 G.SHDSL Services Routers with ISDN BRI S/T backup, ISDN dial-in, and ISDN callback features enabled have undergone only limited field testing. Contact Juniper Networks customer support before implementing ISDN backup, ISDN dial-in, or ISDN callback on a J2300 G.SHDSL router.

Services Router User Interface and Configuration

The J-Web graphical user interface provides new Quick Configuration pages that enable you to configure the following features:

• Asymmetric digital subscriber line (ADSL)—Configure physical and logical properties on the ADSL interface. To configure ADSL using Quick Configuration, navigate to Configuration>Quick Configuration>Interfaces.
• Class of Service (CoS)—Configure class-of-service properties for network traffic. To configure CoS using Quick Configuration, navigate to Configuration>Quick Configuration>Class of Service.
• Data link switching (DLSw)—Configure remote and local DLSw peers as well as LLC2 properties. To configure DLSw using Quick Configuration, navigate to Configuration>Quick Configuration>Routing and Protocols.
• Symmetric high-speed digital subscriber line (SHDSL)—Configure physical and logical properties on the SHDSL interface. To configure SHDSL using Quick Configuration, navigate to Configuration>Quick Configuration>Interfaces.
• Point-to-Point Protocol over Ethernet (PPPoE)—Configure PPPoE properties on physical interfaces. To configure PPPoE using Quick Configuration, navigate to Configuration>Quick Configuration>Interfaces.
• Integrated Services Digital Network (ISDN)—Configure ISDN physical and logical properties as well as dialer interface features. To configure ISDN using Quick Configuration, navigate to Configuration>Quick Configuration>Interfaces.

For more information about these J-Web features, see the J-series Services Router Basic LAN and WAN Access Configuration Guide and the J-series Services Router Advanced WAN Access Configuration Guide.