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ADSL and SHDSL Interfaces

 
Summary

Learn about ADSL and SHDSL interface details and how to configure the interfaces on security devices.

ADSL and SHDSL Interface Overview

Asymmetric digital subscriber line (ADSL) technology is part of the xDSL family of modem technologies that uses existing twisted-pair telephone lines to transport high-bandwidth data. The Symmetric high-speed DSL (SHDSL) interfaces support an SHDSL multirate technology which helps in data transfer between a single CPE subscriber and a central office (CO). The G.SHDSL Mini-Physical Interface Module (Mini-PIM) provides the physical connection to DSL network media types. Table 1 specifies the key details of the ADSL, SHDSL interfaces, and G.SHDSL Mini-PIM.

Table 1: ADSL and SHDSL Interface Details

Interface Details

Description

Interface name

ADSL, SHDSL

Supported on

For information about platforms support, see hardware compatibility tool (HCT).

Interface type

  • at- represents ADSL2, SHDSL interface and G.SHDSL Mini-PIM when you configure at- to function as VDSL2.

ADSL/ADSL2/ADSL2+ use cases

  • Connects the loop between service provider networks and customer sites. ADSL Mini-PIM facilitates a maximum of 10 virtual circuits on supported security devices and can use PPP over Ethernet over ATM (PPPoEoA) and PPP over ATM (PPPoA) to connect through ADSL lines only.

  • Modems work as a dual-purpose ADSL circuit and can accommodate lower-frequency voice traffic and higher-frequency data traffic.

  • Improves the data rate and reach performance, diagnostics, standby mode, and interoperability of ADSL modems. It doubles the possible downstream data bandwidth, enabling rates of 20 Mbps on telephone lines shorter than 5000 feet (1.5 km).

  • Uses Seamless Rate Adaptation (SRA) to change the data rate of a connection during operation with no interruptions or bit errors and the ADSL2 transceiver detects changes in channel conditions with data transmission parameters.

SHDSL use cases

  • Supports an SHDSL multirate technology for data transfer between a single customer premises equipment (CPE) subscriber and a central office (CO). ITU-T G.991.2 is the official standard for describing SHDSL, also known as G.SHDSL.

  • Delivers a bandwidth of up to 2.3 Mbps in symmetrical directions. Compatible with ADSL and therefore causes very little, if any, interference between cables and is deployed on a network similar to ADSL.

GSHDSL Mini-PIM use cases

Provides the physical connection to DSL network media types and extended ATM CoS functionality to cells across the network. By default, unspecified bit rate (UBR) is used because the bandwidth utilization is unlimited. You can define bandwidth utilization with sustained cell rate and burst tolerance.

For information on ADSL2 hardware specifications, see 1-Port ADSL2+ Mini-Physical Interface Module Network Interface Specifications.

Features Supported on the ADSL, ADSL2, and SHDSL Interface

Table 2 describes the key features supported on ADSL2 and SHDSL interfaces.

Table 2: Key Features Supported on ADSL2 and SHDSL

Feature

Description

ADSL Features

DSL

  • Supports ATM-over-ADSL and ATM-over-SHDSL interfaces. Payload loopback functionality is not supported on ATM-over-SHDSL interfaces.

  • Uses PPP over Ethernet over ATM (PPPoEoA) and PPP over ATM (PPPoA) to connect through ADSL lines only for supported security devices with Mini-PIMs.

ATM CoS Support

Ability of a network to guarantee class of service depends on the way in which the source generates cells and on the availability of network resources. Based on the way in which the source generates cells and the availability of network resources, the set of traffic descriptors specified are:

  • Peak cell rate (PCR)—Top rate at which traffic can burst.

  • Sustained cell rate (SCR)—Normal traffic rate averaged over time.

  • Maximum burst size (MBS)—Maximum burst size that can be sent at the peak rate.

  • Cell delay variation tolerance (CDVT)—Allows you to delay the traffic for a particular time duration in microseconds to follow a rhythmic pattern.

Encapsulation

You can enable an existing Junos OS CLI to support MLPPP encapsulation and the family mlppp.

To establish an ADSL link, you must first use an RJ-11 cable to connect the CPE to a DSLAM patch panel to form an ADSL link and then use OC3 or DS3 to connect the DSLAM to M Series or E Series devices to form an ATM backbone.

SHDSL Features

Bandwidth

SHDSL is symmetrical and delivers a bandwidth of up to 2.3 Mbps in both directions. Compatible with ADSL and therefore causes very little, if any, interference between cables.

Packet Transfer Mode (PTM)

Supports PTM and packets (IP, PPP, Ethernet, MPLS, and so on) are transported over DSL links as an alternative to using Asynchronous Transfer Mode (ATM). PTM is based on the Ethernet in the First Mile (EFM) IEEE 802.3ah standard.

DSL

G.SHDSL Mini-Physical Interface Module (Mini-PIM) provides the physical connection to DSL network media types.

GSHDSL Virtual circuits (VC)

VC per Mini-PIM (10 maximum including OAM VC).

MTU size

Maximum MTU size of 9180 bytes.

GSHDSL PTM EFM

  • Supports EFM PIC mode, PPPoE encapsulation, IPv6, Chassis cluster mode, and VLAN over EFM.

  • Maximum MTU size of 1514 bytes.

For more information on supported features and profiles on ADSL2 interfaces, see 1-Port ADSL2+ Mini-Physical Interface Module Key Features and for SHDSL and GSHDSL interfaces, see 1-Port G.SHDSL 8-Wire Mini-Physical Interface Module Overview.

ADSL transmission is asymmetric because the downstream bandwidth is typically greater than the upstream bandwidth. The typical bandwidths of ADSL, ADSL2, and ADSL2+ circuits are defined in Table 3.

Table 3: Standard Bandwidths of DSL Operating Modes

Operating Modes

Upstream

Downstream

ADSL

800 Kbps—1Mbps

8 Mbps

ADSL2

1—1.5 Mbps

12—14 Mbps

ADSL2+

1—1.5 Mbps

24—25 Mbps

ADSL2+ Annex M

2.5—3 Mbps

25 Mbps

Operating Modes and Line Rates of the G.SHDSL Mini-PIM

The G.SHDSL Mini-PIM supports 2-wire (4-port 2-wire) mode, 4-wire (2-port 4-wire) mode, 8-wire (1-port 8-wire) mode, and EFM mode. The default operating mode is 2x 4-wire for this G.SHDSL Mini-PIM. G.SHDSL is supported on all devices using the symmetrical WAN speeds shown in Table 4.

Table 4: Symmetrical WAN Speeds

Modes

Symmetrical WAN Speed Using Annex A and B

Symmetrical WAN Speed Using Annex F and G

2-wire

2.3 Mbps

From 768 Kbps to 5.696 Mbps

4-wire

4.6 Mbps

From 1.536 Mbps to 11.392 Mbps

8-wire

9.2 Mbps

From 3.072 Mbps to 22.784 Mbps

EFM mode

2.3 Mbps

From 768 Kbps to 5.696 Mbps

Note: A maximum of 16 Mbps is supported on SRX210, SRX220, SRX240, and SRX550 devices.

Example: Configure ADSL and SHDSL Network Interfaces

In this example you configure the ADSL and SHDSL interface on an SRX Series device which supports LFI through an MLPPP. To support MLPPP encapsulation and the family mlppp on the ADSL interface on an SRX Series device, you enable an existing Junos OS CLI. To establish an ADSL link between network devices, you must use some intermediate connections. First, use an RJ-11 cable to connect the CPE (for example, an SRX Series device) to a DSLAM patch panel to form an ADSL link. Then use OC3 or DS3 to connect the DSLAM to M Series or E Series devices to form an ATM backbone.

Table 5 specifies the CLI quick configuration commands used for configuring ADSL and SHDSL interfaces.

Table 5: CLI Quick Configuration

Configuration Step

CLI Quick Configuration Commands

Configure the DHCP client on ADSL interface

set interfaces at-1/0/0 encapsulation ethernet-over-atm
set interfaces at-1/0/0 atm-options vpi 2
set interfaces at-1/0/0 dsl-options operating-mode auto
set interfaces at-1/0/0 unit 0
set interfaces at-1/0/0 unit 0 encapsulation ether-over-atm-llc
set interfaces at-1/0/0 unit 0 vci 2.122
set interfaces at-1/0/0 unit 0 family inet
set interfaces at-1/0/0 unit 0 family inet dhcp

Configure the IPv6 address on an ADSL interface

set interfaces at-1/0/0 encapsulation ethernet-over-atm
set interfaces at-1/0/0 atm-options vpi 2
set interfaces at-1/0/0 unit 0 encapsulation ether-over-atm-llc
set interfaces at-1/0/0 unit 0 vci 2.118
set interfaces at-1/0/0 unit 0 family inet6 address 13:13::1/64

Configure ATM-over-ADSL network interfaces

set interfaces at-2/0/0 atm-options vpi 25 oam-liveness up-count 200 down-count 200
set interfaces at-2/0/0 atm-options vpi 25 oam-period 100
set interfaces at-1/0/0 unit 0 shaping cbr
set interfaces at-1/0/0 unit 0 shaping vbr peak 33000
set interfaces at-1/0/0 dsl-options operating-mode auto
set interfaces at-1/0/0 encapsulation ethernet-over-atm
set interfaces at-1/0/0 unit 3 encapsulation atm-nlpid oam-liveness up-count 200 down-count 200
set interfaces at-1/0/0 unit 3 oam-period 100
set interfaces at-1/0/0 unit 3 family inet
set interfaces at-1/0/0 unit 3 vci 35

Configure CHAP on DSL interfaces

set access profile A-ppp-client client client1 chap-secret my-secret
set interfaces at-3/0/0 unit 0 ppp-options chap access-profile A-ppp-client local-name A-at-3/0/0.0 passive

Configure ATM-over-SHDSL network interfaces

set chassis fpc 6 pic 0 shdsl pic-mode 1-port-atm
set interfaces at-2/0/0 atm-options vpi 25 oam-liveness up-count 200 down-count 200
set interfaces at-2/0/0 atm-options vpi 25 oam-period 100
set interfaces at-2/0/0 encapsulation ethernet-over-atm shdsl-options annex annex-a
set interfaces at-2/0/0 encapsulation ethernet-over-atm shdsl-options line-rate auto
set interfaces at-2/0/0 encapsulation ethernet-over-atm shdsl-options loopback local
set interfaces at-2/0/0 encapsulation ethernet-over-atm shdsl-options snr-margin current 5 snext 5
set interfaces at-2/0/0 unit 3 encapsulation atm-nlpid
set interfaces at-2/0/0 unit 3 oam-liveness up-count 200 down-count 200
set interfaces at-2/0/0 unit 3 oam-period 100
set interfaces at-2/0/0 unit 3 oam-period 100
set interfaces at-2/0/0 unit 3 vci 35

Configure the DHCP client on ADSL interface

In this example, you configure the ATM interface as at-1/0/0. Then set the logical interface to unit 0 and specify the family protocol type as inet. Finally, configure the DHCP client. To configure DHCP client on ADSL interfaces:

  1. Set the encapsulation mode.
  2. Configure the ATM VPI option.
  3. Set operating mode.
  4. Set the logical interface.
  5. Set the encapsulation mode for logical interface.
  6. Set the ATM VCI option.
  7. Specify the family protocol type.
  8. Configure the DHCP client.
  9. Set the DHCP client identifier as a ASCII or hexadecimal value (optional):

    Use hexadecimal if the client identifier is a MAC address—for example, 00:0a:12:00:12:12.

  10. Set the DHCP lease time in seconds—for example, 86400 (24 hours). The range is 60 through 2147483647 seconds (optional).
  11. Define the number of attempts allowed to retransmit a DHCP packet (optional)—for example, 6

    The range is 0 through 6. The default is 4 times.

  12. Define the interval, in seconds, allowed between retransmission attempts (optional)—for example, 5.

    The range is 4 through 64. The default is 4 seconds.

  13. Set the IPv4 address of the preferred DHCP server (optional)—for example, 10.1.1.1.
  14. Set the vendor class ID for the DHCP client (optional)—for example, ether.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure the IPv6 Address on an ADSL Interface

To configure the IPv6 address on an ADSL interface:

  1. Configure the encapsulation type.
  2. Specify the annex type.
  3. Configure the encapsulation for the logical unit.
  4. Configure the VCI value.
  5. Configure family protocol type and assign an IPv6 address.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure ATM-over-ADSL Network Interfaces

This example shows how to use devices with ADSL Annex A or Annex B PIMs to send network traffic through a point-to-point connection to a DSLAM. Within the example, you set the DSL operating mode type to auto so that the ADSL interface will autonegotiate settings with the DSLAM.

The example shows how to create an ATM interface called at-2/0/0. The values for the interface’s physical properties are kept relatively low—the ATM VPI is set to 25; both the OAM down count and up count are set to 200 cells; the OAM period is set to 100 seconds.

The example also shows how to set traffic shaping values on the ATM interface to support CoS. CBR is enabled in order to stabilize the cell transmission rate throughout the duration of the connection. Additionally, the VBR peak is set to 33,000 for data packet transfers.

Within the example, you set the encapsulation mode to ethernet-over-atm to support PPP over Ethernet IPv4 traffic. You also configure a logical interface (unit 3). The logical interface uses ATM NLPID encapsulation. As with the physical interface, the OAM down count and up count are set to 200 cells on the logical interface and the OAM period is set to 100 seconds. The family protocol is set to inet and the VCI is set to 35.

On SRX devices, the ATM interface takes more than 5 minutes to come up when CPE is configured in ANSI-DMT mode and CO is configured in automode. This occurs only with ALU 7300 DSLAM, due to limitation in current firmware version running on the ADSL Mini-PIM.

To configure ATM-over-ADSL network interfaces for the devices:

  1. Create an ATM interface.
  2. Configure the physical properties for the ATM interface.
  3. Specify the CBR value and VBR value for the Ethernet interface.
  4. Set the DSL operating mode type.
  5. Configure the encapsulation type.
  6. Configure the encapsulation for the logical unit.
  7. Configure the OAM liveness values for an ATM virtual circuit.
  8. Specify the OAM period.
  9. Set the family protocol type.
  10. Configure the VCI value.

Use the show command to see the output of the configuration.

Configure MLPPP-over-ADSL Interfaces

In this example, you set the encapsulation as atm-mlppp-llc for the interface at-5/0/0. You then configure the family MLPPP bundle as lsq-0/0/0.1.

Figure 1 shows a typical example of MLPPP-over-ADSL end-to-end connectivity.

Figure 1: MLPPP-over-ADSL Interface
 MLPPP-over-ADSL Interface

To configure MLPPP on an ADSL interface:

  1. Configure an interface.
  2. Set the MLPPP encapsulation.
  3. Specify the family MLPPP.
  4. If you are done configuring the device, commit the configuration.

Use the show command to see the output of the configuration.

Configure CHAP on DSL Interfaces

In this example, you specify the CHAP access profile and create an interface called at-3/0/0. You configure CHAP on either the ATM-over-ADSL or the ATM-over-SHDSL interface and specify a unique profile name called A-ppp-client containing a client list and access parameters. You then specify a unique hostname called A-at-3/0/0.0 to be used in CHAP. Finally, you set the passive option to handle incoming CHAP packets. To configure CHAP on either the ATM-over-ADSL or the ATM-over-SHDSL interface:

  1. Define a CHAP access profile.
  2. Create an interface.
  3. Configure CHAP and specify a unique profile name.
  4. Specify a unique hostname.
  5. Set the option to handle incoming CHAP packets only.

Use the show command to see the output of the configuration.

Configure ATM-over-SHDSL Network Interfaces

In this example, you set the ATM-over-SHDSL mode on the G.SHDSL interface, if required. You create an interface called at-2/0/0 and configure the physical properties for the interface. You configure the encapsulation type and annex type. You specify the SHDSL line rate for the ATM-over-SHDSL interface and the loopback address for testing the SHDSL connection integrity. Then you configure the SNR margin, set the logical interface, and configure the encapsulation for the ATM-over-SHDSL logical unit.

Additionally, you configure the OAM liveness values for an ATM virtual circuit and set the OAM period, Finally, you add the family protocol type inet and configure the VCI value. To configure ATM-over-SHDSL network interfaces for the device:

  1. Set the ATM-over-SHDSL mode on the G.SHDSL interface.
  2. Create an interface.
  3. Configure the physical properties for the interface.
  4. Configure the encapsulation type.
  5. Set the annex type.
  6. Configure the SHDSL line rate.
  7. Configure the loopback option for testing the SHDSL connection integrity.
  8. Configure the signal-to-noise ration margin.
  9. Configure the logical interface.
  10. Configure the encapsulation for the logical unit.
  11. Configure the OAM liveness values for an ATM virtual circuit
  12. Configure the OAM period.
  13. Add the Family protocol type.
  14. Configure the VCI value.

Use the show command to see the output of the configuration.

Verification

Purpose

Display information about the parameters configured on the ADSL and SHDSL interfaces.

Action

  • To verify that the DHCP options are configured use the run show system services dhcp client command:

    user@host# run show system services dhcp client

    To verify the interface status and check traffic statistics use the show interface terse command and test end-to-end data path connectivity by sending the ping packets to the remote end IP address:

    user@host# run show interfaces at-1/0/0 terse
    user@host# run ping 10.40.1.1 count 100 rapid
  • To verify that the ADSL interface properties are configured use the show ipv6 neighbors command. The output shows a summary of interface information.

    user@host> show ipv6 neighbors

    Meaning

    The IPv6 Address field displays the configured IPv6 address on the interface.

  • To verify the ADSL interface properties, use the show interfaces at-1/0/0 extensive command:

    user@host> show interfaces at-1/0/0 extensive

    The output shows a summary of interface information.

    To verify the PPPoA configuration for an ATM-over-ADSL interface is correct, use the the show interfaces at-1/0/0 and the show access commands.

  • To verify the configuration for an MLPPP-over-ADSL Interface is correct, use the show interfaces at-5/0/0 command.

  • To verify that the ADSL interface properties are enabled, use the show interfaces at-3/0/0 extensive command.

    user@host> show interfaces at-3/0/0 extensive

    To verify the PPPoA configuration for an ATM-over-ADSL interface is correct, use the show interfaces at-3/0/0 and the show access commands.

    To verify that an ATM-over-SHDSL configuration is correct, use the show interfaces at-3/0/0 extensive command.

    user@host> show interfaces at-3/0/0 extensive

Example: Configure G.SHDSL Interface

This example shows how to configure the G.SHDSL interface on SRX Series devices.

To configure GSHDSL interface:

  1. Specify the wire mode on the G.SHDSL interface. The default wire mode is 4-wire (2-port, 4-wire).

  2. Specify the annex type. The default annex type is auto.

  3. Specify the SHDSL line rate (speed of transmission of data on the SHDSL connection). The default line rate is auto.

  4. Specify the encapsulation type. The pt- interface does not require encapsulation types.

  5. Configure the encapsulation type.

Before you begin:

  • Configure the network interfaces as necessary. See Understanding Ethernet Interfaces.

  • Install the G.SHDSL Mini-PIM in the first slot of the SRX210 chassis.

  • Connect the SRX210 device to a DSLAM (IP DSLAM and ATM DSLAM).

Figure 2 shows the topology for the G.SHDSL Mini-PIM operating in 2X4-wire mode.

Figure 2: G.SHDSL Mini-PIM Operating in 2X4-Wire Mode
G.SHDSL Mini-PIM Operating
in 2X4-Wire Mode

Figure 3 shows the topology for the G.SHDSL Mini-PIM operating in 4X2-wire mode.

Figure 3: G.SHDSL Mini-PIM Operating in 4X2-Wire Mode
G.SHDSL Mini-PIM
Operating in 4X2-Wire Mode

Figure 4 shows the topology for the G.SHDSL Mini-PIM operating in 1X8-wire mode.

Figure 4: G.SHDSL Mini-PIM Operating in 1X8-Wire Mode
G.SHDSL Mini-PIM
Operating in 1X8-Wire Mode

Determine the operating wire mode (2-wire, 4-wire, or 8-wire) and corresponding CLI code listed in Table 6.

Table 6: Operating Wire Modes

Wire Mode Configuration

CLI Code

2x4-wire Configuration

set chassis fpc 1 pic 0 shdsl pic-mode 2-port-atm

Note: The 2x4-wire configuration is the default configuration and behavior.

4x2-wire Configuration

set chassis fpc 1 pic 0 shdsl pic-mode 4-port-atm

1x8-wire Configuration

set chassis fpc 1 pic 0 shdsl pic-mode 1-port-atm

When you set the wire mode to 8-wire, one physical interface (IFD) is created. Similarly for 4-wire mode and 2-wire mode, two IFDs and four IFDs are created, respectively.

In this example:

  1. First configure a basic G.SHDSL interface. Set the operation wire mode to 2-port-atm, the line rate to 4096, and the annex type to annex-a.

  2. Configure the G.SHDSL interface when the device is connected to an IP DSLAM. Set the type of encapsulation to ethernet-over-atm and the ATM VPI option to 0. Set the type of encapsulation on the G.SHDSL logical interface as ether-over-atm-llc and configure the ATM VCI option to 0.60. Also, set the interface address for the logical interface to 1.1.1.1/24.

  3. Configure the G.SHDSL interface when the device is connected to an ATM DSLAM. Set the ATM VPI to 0 and set the type of encapsulation to ppp-over-ether-over-atm-llc. Specify a PPPoE interface with the PAP access profile, local-name, and local-password. Configure the passive option to handle incoming PAP packets and set the logical interface as the underlying interface for the PPPoE session to at-1/0/0.0. Set the number of seconds to 120 to wait before reconnecting after a PPPoE session is terminated. Specify the logical interface as the client for the PPPoE interface and obtain an IP address by negotiation with the remote end.

  4. Configure PPPoA over ATM for the G.SHDSL Interface. set the type of encapsulation to atm-pvc and the ATM VPI to 0. Set the type of encapsulation for PPP over ATM adaptation layer 5 (AAL5) logical link control (LLC) on the logical interface and set the ATM VCI to 122. Configure the PPPoA interface with the CHAP access profile as juniper and set the local-name for the CHAP interface to srx-210. Finally, you obtain an IP address by negotiation with the remote end.

Table 7specifies the CLI quick configuration commands used for configuring GSHDSL interfaces.

Table 7: CLI Quick Configuration

Configuration Step

CLI Quick Configuration Commands

Configure a basic G.SHDSL interface

set chassis fpc 1 pic 0 shdsl pic-mode 2-port-atm
set interfaces at-1/0/0 shdsl-options line-rate 4096 annex annex-a

Configure G.SHDSL interface when connected to an IP DSLAM

set interfaces at-1/0/0 encapsulation ethernet-over-atm
set interfaces at-1/0/0 atm-options vpi 0
set interfaces at-1/0/0 unit 0 encapsulation ether-over-atm-llc vci 0.60
set interfaces at-1/0/0 unit 0 family inet address 1.1.1.1/24

Configure G.SHDSL Interface when connected to an ATM DSLAM

set interfaces at-1/0/0 encapsulation atm-pvc atm-options vpi 0
set interfaces at-1/0/0 unit 0 encapsulation atm-snap vci 0.65
set interfaces at-1/0/0 unit 0 family inet address 2.1.1.1/24

Configure PPPoE over ATM for the G.SHDSL interface

set interfaces at-1/0/0 encapsulation ethernet-over-atm atm-options vpi 0
set interfaces at-1/0/0 unit 0 encapsulation ppp-over-ether-over-atm-llc vci 0.35
set interfaces pp0 unit 0 ppp-options pap access-profile pap_prof local-name srx-210
set interfaces pp0 unit 0 ppp-options pap local-password "$9$0tLw1SeN-woJDSr-wY2GU69Cp1RSre"
set interfaces pp0 unit 0 ppp-options pap passive
set interfaces pp0 unit 0 pppoe-options underlying-interface at-1/0/0.0
set interfaces pp0 unit 0 pppoe-options auto-reconnect 120 client
set interfaces pp0 unit 0 family inet negotiate-address

Configure PPPoA over ATM for the G.SHDSL interface

set interfaces at-1/0/0 encapsulation atm-pvc atm-options vpi 0
set interfaces at-1/0/0 unit 0 encapsulation atm-ppp-llc vci 1.122
set interfaces at-1/0/0 unit 0 ppp-options chap access-profile juniper local-name srx-210
set interfaces at-1/0/0 unit 0 family inet negotiate-address

Cofigure a basic G.SHDSL interface in EFM PIC mode

set chassis fpc 1 pic 0 shdsl pic-mode efm
set interfaces pt-1/0/0 shdsl-options annex annex-g
set interfaces pt-1/0/0 shdsl-options line-rate 5696
set interfaces pt-1/0/0 unit 0 family inet address 10.10.10.1/24

Configure PPPoE and VLAN for the G.SHDSL EFM interface

set interfaces pt-1/0/0 unit 0 encapsulation ppp-over-ether
set interfaces pp0 unit 0 ppp-options pap access-profile pap_prof local-name srx-210
set interfaces pp0 unit 0 ppp-options pap local-password "$9$0tLw1SeN-woJDSr-wY2GU69Cp1RSre"
set interfaces pp0 unit 0 ppp-options pap passive
set interfaces pp0 unit 0 pppoe-options underlying-interface pt-1/0/0.0
set interfaces pp0 unit 0 pppoe-options auto-reconnect 120 client
set interfaces pp0 unit 0 family inet negotiate-address

Configure a Basic G.SHDSL Interface in EFM PIC Mode

set chassis fpc 1 pic 0 shdsl pic-mode efm
set interfaces pt-1/0/0 shdsl-options annex annex-g
set interfaces pt-1/0/0 shdsl-options line-rate 5696
set interfaces pt-1/0/0 unit 0 family inet address 10.10.10.1/24

Configure PPPoE and VLAN for the G.SHDSL EFM Interface

set interfaces pt-1/0/0 unit 0 encapsulation ppp-over-ether
set interfaces pp0 unit 0 ppp-options pap access-profile pap_prof local-name srx-210
set interfaces pp0 unit 0 ppp-options pap local-password "$9$0tLw1SeN-woJDSr-wY2GU69Cp1RSre"
set interfaces pp0 unit 0 ppp-options pap passive
set interfaces pp0 unit 0 pppoe-options underlying-interface pt-1/0/0.0
set interfaces pp0 unit 0 pppoe-options auto-reconnect 120 client
set interfaces pp0 unit 0 family inet negotiate-address

Configure the Basic G.SHDSL Interfaces

To view the CLI quick configuration commands, see Table 7.

To configure the basic G.SHDSL interface on SRX210 devices:

  1. Select the operating wire mode.
  2. Create an interface and set options.
  3. Configure the line rates.
  4. Set the annex type.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure a G.SHDSL Interface When Connected to an IP DSLAM

To configure the G.SHDSL interface on an SRX210 device when the device is connected to an IP DSLAM: :

  1. Create an interface.
  2. Specify the type of encapsulation.
  3. Configure the ATM VPI option.
  4. Specify the type of encapsulation for logical interface.
  5. Configure the ATM VCI options for the logical interface.
  6. Configure the interface address.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure a G.SHDSL Interface When Connected to an ATM DSLAM

To configure the G.SHDSL interface on an SRX210 device when the device is connected to an ATM DSLAM: :

  1. Create an interface.
  2. Specify the type of encapsulation.
  3. Configure the ATM VPI option.
  4. Specify the type of encapsulation for the logical interface.
  5. Configure the ATM VCI option.
  6. Configure the interface address.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure PPPoE over ATM for the G.SHDSL Interface

To configure PPPoE over ATM on the G.SHDSL interface:

  1. Create an interface.
  2. Specify the type of encapsulation.
  3. Configure the ATM VPI option.
  4. Specify the type of encapsulation on the logical interface.
  5. Configure the ATM VCI option.
  6. Configure a PPPoE interface with the PAP access profile.
  7. Configure a local-name for the PAP interface.
  8. Configure a local-password for the PAP interface.
  9. Set the passive option to handle incoming PAP packets.
  10. Specify the logical interface as the underlying interface for the PPPoE session.
  11. Specify the number of seconds.
  12. Set the logical interface as the client for the PPPoE interface.
  13. Obtain an IP address by negotiation with the remote end.

Use the show interfaces at-1/0/0 and show interfaces pp0 commands to see the output of the configuration.

Configure PPPoA over ATM for the G.SHDSL Interface

To configure PPPoA over ATM on the G.SHDSL interface:

  1. Create an interface.
  2. Specify the type of encapsulation.
  3. Configure the ATM VPI option.
  4. Specify the type of encapsulation on the G.SHDSL logical interface.
  5. Configure the ATM VCI option.
  6. Configure a PPPoA interface with the CHAP access profile.
  7. Configure a local name for the CHAP interface.
  8. Obtain an IP address by negotiation with the remote end.

Use the show interfaces at-1/0/0 command to see the output of the configuration.

Configure G.SHDSL Interface in EFM Mode

In this example:

  1. You first configure a basic G.SHDSL interface by setting the operation wire mode to efm, the line rate to auto, and the annex type to annex-auto.

  2. You then configure the G.SHDSL interface when the device is connected to an EFM IP DSLAM. You set the logical interface to 10.10.10.1/24.

  3. Next you configure PPPoE for the G.SHDSL Interface. Configure the encapsulation as ppp-over-ether under unit 0 of pt-1/0/0 interface. You specify a PPPoE interface with the PAP access profile, local name, and local password. Then you configure the passive option to handle incoming PAP packets and set the logical interface as the underlying interface for the PPPoE session to pt-1/0/0.0. Also, you set the number of seconds to 120 to wait before reconnecting after a PPPoE session is terminated. (The range is 1 through 4,294,967,295 seconds.) Finally, you specify the logical interface as the client for the PPPoE interface and obtain an IP address by negotiation with the remote end.

Figure 5 shows the topology for the G.SHDSL Mini-PIM operating in EFM mode.

Figure 5: G.SHDSL Mini-PIM Operating in EFM Mode
G.SHDSL Mini-PIM Operating in EFM
Mode

For operating wire mode EFM configuration, use the set chassis fpc 1 pic 0 shdsl pic-mode efm CLI code. When PIC mode is set to EFM, an interface called pt-1/0/0 is created.

To view the CLI quick configuration commands, see Table 7.

Configure a Basic G.SHDSL Interface in EFM PIC Mode

To configure a basic G.SHDSL interface:

  1. Specify the PIC mode.
    Note

    When configuring the G.SHDSL interface in chassis cluster mode, include the node ID. For example, to configure the G.SHDSL interface (operating in EFM PIC mode) in chassis cluster mode for fpc slot 1 on node 0, use the following command:

    set chassis node 0 fpc 1 pic 0 shdsl pic-mode efm

  2. Configure the IP address.
    Note

    By default, annex mode and line rate are set to auto. If you have to configure annex mode (annex-g) and line rate (5696 Kbps), follow Steps 3, 4, and 5.

  3. Configure SHDSL options.
  4. Specify the annex type.
  5. Configure the line rate.

Use the show interfaces pt-1/0/0 and show chassis fpc 1 commands to see the output of the configuration.

Configure a PPPoE and VLAN for the G.SHDSL EFM Interface

To configure PPPoE and VLAN for the G.SHDSL EFM Interface:

  1. Create an interface.
  2. Specify the type of encapsulation.
  3. Configure a PPPoE interface with the PAP access profile.
  4. Configure a local name for the PAP interface.
  5. Configure a local password for the PAP interface.
  6. Set the passive option to handle incoming PAP packets.
  7. Specify the logical interface as the underlying interface for the PPPoE session.
  8. Specify the number of seconds.
  9. Set the logical interface as the client for the PPPoE interface.
  10. Obtain an IP address by negotiation with the remote end.
  11. Configure VLAN on EFM.
  12. Specify the VLAN ID.

Use the show interfaces pt-1/0/0 and show interfaces pp0 commands to see the output of the configuration.

Verification

Purpose

Display information about the parameters configured on the GSHDSL interfaces.

Action

  • To display information about all the basic G.SHDSL interface properties, use the show interfaces at-1/0/0 extensive command.

  • To display information about G.SHDSL interface properties:

    user@host> show interfaces pt-1/0/0 extensive

    EFM mode for interface pt-1/0/0:

    Meaning

    The output shows a summary of interface information.