The ADSL modem is available in various models. The model must support the type of service you are being provided. Table B lists the model numbers and the types of service supported. The model number is on the bottom of the modem.
Table B. Service Type ATM-25 Service (ATMF) Bridged Service (RFC 1483) Bridged Service (RFC 1483) Point To Point Service (PPP) Bridged Service (RFC 1483) with Filtering Point To Point Service (PPP) 3EC 18202 DB Model Number 3EC 18200 AB 3EC 18202 AB 3EC 18202 BB
BRIDGED SERVICE BRIDGED SERVICE
If your service provider is providing bridged service, your ADSL modem should have model number 3EC 18202 AB, 3EC 18202 BB, or 3EC 18202 DB on the bottom of the modem case.
System Requiirements System Requ rements
The Alcatel 1000 ADSL high speed modem requires a PC or workstation equipped with an Ethernet 10Base-T network adapter card.
Before you begin, you will need to ask your service provider whether your connection will use static addressing, or DHCP (dynamic) addressing. You will need this information at step 9.
Hardware Installllatiion Hardware Insta at on
To connect your high speed ADSL modem, follow these steps: 1. 2. 3. 4. Make sure the modem on/off switch is set to the O (off) position. Connect the jack end of the power cable to the modem power socket. Plug the other end of the power cable (the end with the power supply adapter) to an electrical outlet. Connect one end of a standard telephone cable (not provided) to the modem connector labeled LINE.
The line cable may be provided by your service provider during installation, or it can be purchased at your local electronics supply store. 5. 6. 7. 8. 9. Connect the other end of the line cable to a phone jack. Connect one end of the Alcatel Data Cable (provided) to the modem connector labeled 10BASE-T. Connect the other end of the Alcatel Data Cable to the Ethernet 10Base-T network adapter card in your PC. Start your PC. Click Start, Settings, Control Panel, and finally, the Network icon.
10. Click the Configuration tab. 11. Scroll down to the TCP/IP protocol adapters, find the adapter which includes the name of your Ethernet card, and select it. 12. Click the Properties button.

13. When the TCP/IP Properties window appears, click the IP Address tab. 14. If your service is DHCP, click the Obtain an IP address automatically radio button. If your service uses static addressing, press the Enter IP address radio button, and enter the IP address and subnet mask assigned to you by your service provider. 15. Restart your computer. 16. Turn on the modem by switching the on/off switch to |. Power/Sync Light The Power/Sync light begins blinking. After about two minutes, the light should be solid green. If the light is not solid green, check the telephone line cable between the modem LINE connector and the phone jack. If this connection is secure and the Power/Sync light is not solid green, contact your service provider for assistance. 10BASE-T Light The 10BASE-T light should be solid green. If the light is not solid green, check the Alcatel Data Cable connection between the modem 10BASE-T connector and the Ethernet 10Base-T network adapter card in your PC. If this connection is secure and the 10BASE-T light is not solid green, contact your service provider for assistance.
Accessiing Onlliine Ser viices Access ng On ne Ser v ces
When your PC is started and your ADSL modem is switched on, a connection is automatically established with your online service. Through this connection, you can access the World Wide Web or your corporate network or other online services. Network Address Assignments Network addresses are either manually assigned (static addresses) or dynamically assigned. If the address is fixed, your PC must be configured with an IP address provided by your service provider. If the address is dynamic, your PC must be configured to use dynamic host configuration protocol (DHCP). If you are not sure which network addressing method you are using, ask your service provider for this information.
POINT TO POINT SERVICE POINT TO POINT SERVICE
If your service provider is providing point to point (PPP) service, your ADSL modem should have model number 3EC 18202 BB or 3EC 18202 DB on the bottom of the modem case.
The Alcatel 1000 ADSL high speed modem requires a PC or workstation equipped with the following: 1. 2. 3. Ethernet 10Base-T network adapter card, Operating system such as Windows 95, Windows 98, or Windows NT (see note) Microsoft Virtual Private network (VPN) Adapter
If you have an operating system other than Windows 95, Windows 98, or Windows NT, contact your service provider for additional system requirements. PPP service requires a user account to the service provider of your choice.

7. 8. 9.

Click the Windows Setup tab. Momentarily, the Searching for Installed Components window pops up, then disappears. Click on Communications in the Components: list. Press the Details button.
10. Scroll down the subcomponents list until you see Virtual Private Networking. The box next to this listing needs to have a check mark in it. If it does not, click it to install it. 11. Click OK, and then OK in the Add/Remove Programs Properties window.
12. Your PC will prompt you to insert your Windows 98 CD. When you do this, VPN will install, and you can follow the steps under Installing Dial-Up Networking Software (Windows 98 Only) to activate VPN. Configure the Connection To configure a new PPP connection to your corporate network or an ISP, do the following: 1. 2. 3. Double-click the My Computer icon. Double-click the Dial-Up Networking icon. Activate the Make New Connection application by double-clicking on the corresponding icon. The Welcome to Dial-Up Networking window appears (this window only appears the first time you use the Make New Connection application). Click Next. The Make New Connection window appears (see figure 2).
Figure 2. Make New Connection (Windows 95 Example) 5. 6. 7. Enter a name for the ISP or corporate network you are dialing (this name appears with the icon that is created). To create a connection to your ISP or corporate network, select Microsoft VPN Adapter in the Select a device box. Click Next. The VPN Server field appears (see figure 3).
Figure 3. VPN Server Field (Windows 98 example) 8. 9. Enter 10.0.0.138 (default IP address of the ADSL modem). Click Next. A window appears indicating you have successfully installed a new dial-up networking Connection.
10. Click Finish. A new icon with the name of the connection you just created is added to your Dial-Up Networking folder (see figure 4). You can use this icon to make a connection to your corporate network or ISP.
Figure 4. Dial-Up Networking Folder (Windows 95 Example) Make the Connection After configuring the PPP connection, make the connection: 1. 2. 3. Double-click the My Computer icon. Double-click the Dial-Up Networking icon. Activate the connection setup by double-clicking the icon of the connection you want to establish. The Connect To window appears (see figure 5).
Figure 5. Connect To (Windows 98 Example) 4. 5. Enter the User name and Password (the IP address defaults to the modem's IP address of 10.0.0.138). Click Connect. The Connecting To window appears (see figure 6).
Figure 6. Connecting To (Windows 95 Example) This window indicates the status of the connection process. When the connection is established, a connection icon appears on your desktop. You are now connected to the destination specified in the connection icon.

When your PC is started and your ADSL modem is switched on, a connection is automatically established with your online service. Through this connection, you can access the World Wide Web or your corporate network or other online services.
SECTION 2: DESCRIPTION OF FEATURES
The Alcatel 1000 ADSL high speed modem provides high speed virtual connections to multiple services simultaneously, using ATM/ADSL on standard telephone twisted pairs. Asymmetric Digital Subscriber Line (ADSL) is a high speed transmission technology that takes advantage of existing copper telephone lines and new telephone technologies to deliver data services to residential and small business users located within a limited distance from the Central Office (CO) exchange. Additionally, ADSL operates over standard voice-grade telephone circuits without disturbing the existing telephone connections. Telephone lifeline service is NOT impacted by any failure of the modem. The Alcatel 1000 ADSL high speed modem features industry standard ATM Forum-25.6 Mb/s (ATMF) or 10BASE-T Ethernet interfaces. Both ATMF-25 and Ethernet can use the high bit rates available through the ADSL line. The ATMF-25 interface plugs into a Personal Computer (PC) with an ATM-Forum (ATMF) 25.6-Mb/s interface. The 10BASE-T Ethernet interface allows single or multiple PCs to share the high speed ADSL line. Figure 15 shows the generic network infrastructure. Residential or small office ADSL users have access to corporate Local Area Networks (LANs) or Internet Service Providers (ISPs) or both.
ADSL Modem Remote Splitter

Small Office User

ATM Network
Ethernet/ ATMF Residential User

Access Server

Internet

Information Servers

Corporate LAN
Figure 15. General Network Architecture
MODEM CONNECTIONS MODEM CONNECTIONS
The ADSL modem (see figure 16) has two connectors and a power switch: LINE - Connection to phone jack or remote splitter (RJ14) One of the following: ATMF-25 - Connection to terminal equipment; for example, single PC with ATMF-25 interface (RJ45) 10BASE-T/MDI-X - Connection to Ethernet equipment (RJ45/MDI-X); for example, single workstation, single PC with Ethernet connection, or miniLAN via Ethernet hub Power Socket - Connection to coaxial plug from the power supply adapter

These two traffic types are combined on the single twisted-pair by means of the Frequency Division Multiplexing (FDM) technique. To maintain your normal phone service, a remote splitter must be installed first (see figure 19).
Existing in-home telephone wiring varies greatly in its installation. For most Internet service applications, existing in-home wiring provides adequate performance for the ADSL modem. Improved performance is obtained from unshielded twisted pair Category 5 cable between the remote splitter and the ADSL modem. After installing the remote splitter, connect the modem connector marked LINE to the phone jack.

Voice and Data

Data Remote Splitter ADSL Modem
Figure 19. Subscriber Line Interface to Remote Splitter
Ether net Interface Ether net Interface
The Ethernet port, available on some ADSL models, is a 10BASE-T interface of type MDI-X. When the terminal equipment is correctly connected to the ADSL modem, the visual indicator, marked 10BASE-T, will be solid green. This indicates that the wiring between the modem and the PC is correct. If not, check the cable layout.
Siinglle PC Confiiguratiion S ng e PC Conf gurat on
A single PC with integrated Ethernet port or Ethernet Personal Computer Network Interface Card (PC-NIC) can be connected to the ADSL modem (see figure 20). The connection must be made with a straight-through cable (see figure 21) since a PC is equipped with an Ethernet interface of type Medium Dependent Interface (MDI).
ADSL Modem ATM Network Remote Splitter Ethernet

PC with PC-NIC

Figure 20. Single PC Configuration
Straiight--Through Cablle Layout Stra ght Through Cab e Layout
ADSL Modem 1 Receive 2 Twisted-Pairs 3 Transmit 6 MDI-X Port (Transmit and Receive Connections Reversed) 6 MDI Port 3 Receive Transmit PC
Figure 21. MDI-X Internal Crossover
Mulltiiplle PC Confiiguratiion Mu t p e PC Conf gurat on
To connect multiple PCs to an Ethernet interface, a hub must be installed first (see figure 22). The connection of the hub to the ADSL modem must be made with a crossover cable (see figure 23), since the hub is equipped with an Ethernet interface of type MDI-X.
If the port of the hub connected to the ADSL modem is equipped with an MDI/MDI-X switch and the active position is MDI, a straightthrough cable must be used.

Remote Splitter

ADSL Modem

Ethernet

Figure 22. Multiple PC Configuration
The maximum length of any 10Base-T segment must not exceed 100 meters (328 feet).
Crossover Cablle Layout Crossover Cab e Layout
ADSL Modem 1 Receive 2 Twisted-Pairs Receive Hub

3 Transmit 6 MDI-X Port

Figure 23. MDI-X to MDI-X External Crossover
ATMF--25 Interface ATMF 25 Interface
The ATMF port, available on some ADSL models, is an ATMF-25 interface. The interconnection between the ATM Forum equipment and the ADSL modem must always be made with a straight-through cable (the ATMF-25 interface of the modem is ATM network equipment and most ATMF-25 PC-NIC cards are ATM end equipment). A single PC with an ATM Forum card can be connected directly to the ATMF interface of the ADSL modem (see figure 24).
ADSL Modem ATM Network Remote Splitter ATMF
Figure 24. ADSL Modem with ATMF Interface When the terminal equipment is correctly connected to the ADSL modem, the visual indicator, marked ATMF-25, will be solid green. This indicates that the wiring between the ADSL modem and the PC is correct. If not, check the cable layout.
NETWORK CONNECTIONS NETWORK CONNECTIONS
The Alcatel 1000 ADSL high speed modem supports two methods for accessing remote sites like corporate networks or the World Wide Web via a local ISP. The two methods are direct networking and dial-up networking. Direct networking describes a connection that is always active. In other words, no preliminary steps are required to obtain a connection. Once service is enabled, the user switches on the PC and the modem, and connects to the remote site (the ISP or corporate network). Dial-up networking describes a procedure in which the user requests a connection by dialing the network. The remote site requires a personal user account and password before access is allowed. If your modem has an ATMF-25 port, it supports both direct and dial-up networking methods. Applications on your PC determine which method you are using. If your modem has a 10BASE-T port, the networking method depends on the Ethernet protocol you are using: Direct networking is supported by an IEEE 802.1D Transparent Databridge in the modem. You configure your local workstations with the appropriate parameters or allow your workstations to automatically assume the parameters from the network via specialized protocols. Dial-up networking relies on the standard Point-to-Point Protocol (PPP) and local tunneling using the industry Point-to-Point Tunneling Protocol (PPTP).
To determine which networking method you must use, contact your local ISP or your corporate network administrator.
Only typical networking solutions are presented here, although various combinations of available protocols and equipment allow numerous architectures and networking solutions.
Viir tuall Connectiions V r tua Connect ons

Bridging is a standardized layer 2 technology. It is typically used in corporate networks to extend the physical reach of a single LAN segment, and increases the number of stations on the common LAN without compromising performance. One important characteristic of bridging is the number of bridge ports. The ADSL modem has four remote virtual ports on the ADSL interface and one local port (Ethernet) on the user interface. The ports on the ADSL interface are described as virtual because they are associated with the ATM virtual connections configured on the ADSL line. To establish a connection from any of the remote destinations to the bridge port, PVCs must be configured end-to-end through the network.
The VPI/VCI values for Ethernet/bridging are listed in table G. Table G. Ethernet VPI/VCI Values Parameter VPI VCI Value 8 35, 43, 51, 59 Meaning Virtual Path Identifier Virtual Channel Identifier
Other parameters for the Ethernet/bridging functionality are listed in table H. Table H. Ethernet Parameters Parameter LLC/SNAP or VCMUX FCS Preservation Compression AGING time Value LLC/SNAP OFF OFF 5 (minutes) Meaning RFC 1483 Encapsulation method Frame Check Sequence Tinygram compression Bridge aging time
Mulltiiprotocoll Mu t protoco
Since bridging functionality operates below the network layer, it is transparent to any layer 3 protocol. PCs or workstations can use Transmission Control Protocol (TCP)/Internet Protocol (IP), Sequenced Packet Exchange (SPX)/Internetwork Packet Exchange (IPX), AppleTalk, or any other protocol suite. This implies that any protocol currently being used for applications can be transported to remote destinations and vice versa. Any type of machine (PC, MAC, or Sun workstation) can be connected via Ethernet to the ADSL modem.
Number of Machiines Suppor ted Number of Mach nes Suppor ted
The bridge database can accommodate as many as 256 entries simultaneously. Assume a sample configuration with four remote ports and one local port (Ethernet interface): If all systems are evenly distributed over all the ports, you
could connect about 50 systems per port to completely fill up the database (the upstream bandwidth is limited to 1 Mb/s). If only one virtual port is in use, the 256 entries can be divided over two ports (virtual, Ethernet port).
Pllug and Pllay P ug and P ay
The ADSL modem is a plug and play device; through the bridge learning mechanism, it discovers at which side of the bridge workstations are located. It prevents traffic submitted to the local printer from crossing the bridge. It allows frames belonging to transmissions with remote workstations to pass over the ADSL line. Both the local PCs and remote PCs must be configured properly for end-to-end connections.

This section describes how to access the high speed modem to configure operating parameters. The Alcatel 1000 high speed modem is already configured with default parameters and may not require adjustment.
Confiiguriing the Browser Conf gur ng the Browser
Web browsers can be configured to connect to the Internet directly or via a Proxy Server. To find out if you are using a proxy server, check the preferences of your browser. If you want to change the ADSL modem settings, make sure your browser is not using a proxy server. The procedure to disable proxy settings depends on the browser you are using.
After configuring the ADSL modem, return the browser to its original settings. Netscape Navigator 1. Select Edit pull-down menu, then select Preferences. 2. In the Category box, select Advanced, Proxies. 3. Activate the radio button, Direct Connection to the Internet. Microsoft Explorer 1. Select Internet icon and click the right mouse button. 2. From the pop-up menu, select Properties. 3. Remove the tick mark from Use Proxy Server check box.
Accessiing the ADSL Modem Interface Access ng the ADSL Modem Interface
Access the ADSL modem interface as follows: 1. Start the web browser on your PC or workstation. 2. Enter the IP address of the ADSL modem in the URL field:

http://10.0.0.138

The modems default IP address is 10.0.0.138. The welcome page appears. The modem now operates as a web server, displaying additional pages when you click on their links. Each page provides fields for entering operating parameters for your configuration. Appearing on most of the pages are the following buttons: Apply Clicking this button activates the settings you have entered. Because the settings are stored in volatile memory, they will be lost if you turn off the modem or if the modem resets. Save Clicking this button saves the settings you have entered in nonvolatile memory. The settings remain active even if the modem is turned off or resets. Defaults If you have accidentally deleted parameters, this button allows you to recall the default settings. You must click Save if you want to make the default settings persistent. Advanced Clicking this button provides access to more advanced operating parameters. Home Click this button to return to the welcome page. Back Click this button to access the previous page.

Wellcome Page We come Page
The welcome page provides the following buttons: Initial Setup Click this button to access the basic configuration page for adapting internal modem settings to your local networking requirements. Bridge Click this button to configure parameters for Ethernet LAN bridging. PPP/PPTP Click this button to configure parameters for Point-to-Point Protocol (PPP) relaying. Point-to-Point Tunneling Protocol (PPTP) is used to implement PPP through the modem Ethernet port. System Over view Click this button to display all modem connections and their settings.
Basiic Confiiguratiion Bas c Conf gurat on
When you click Initial Setup from the welcome page, you access the basic configuration page. Numerous functions in the modem rely on Internet Protocol (IP) for their operation. IP requires a minimum set of parameters: IP address Netmask Default Gateway
These IP parameters are for local communication only (between workstations in your own local network and the ADSL modem). A second IP parameter set (via PPP/PPTP) is negotiated between the PC(s) and a remote site. The second IP set is not visible to you and does not interfere with the local IP configuration. These parameters can be configured manually by entering values in the User Defined Configuration Table or automatically by enabling the BOOTP/DHCP Configuration Table.
Because the Alcatel 1000 ADSL modem supports multihoming (one interface supporting multiple IP addresses), the manually configured IP address and the automatically acquired IP address are active simultaneously. The MAC address of the modems Ethernet interface is displayed under the header of the basic configuration page. The following parameters are available on this page: User Defined Configuration Table An example of the User Defined Configuration Table is shown in figure 35.
User defined configuration Enable/Disable IP address: Subnetmask: Default Gateway: 10.0.0.138 255.0.0.0 DHCP/BOOTP
Figure 35. User Defined Configuration Table Enable/Disable Click this check box to enable or disable the user defined settings. IP Address In this field, you can change the user defined IP address of the modem to a value more suitable to your local IP address policy.

The modem comes with the default IP address of 10.0.0.138, which belongs to the class A private address range. Netmask/Subnet Mask This field represents the default netmask associated with the particular class of IP address you assigned to the modem. Leave this field unchanged if no subnetting is applied in your local network. The modem automatically supplies the default netmask for the particular IP address class; for example, 255.0.0.0 for the preconfigured IP address. If you want to apply subnetting in your local network, extend the subnet mask with additional bits.
Default Gateway If you want to use the modem in a more advanced local network, you can supply the IP address of your local default gateway. For standard applications with the modem connected to multiple PCs or workstations through a multiport hub, leave this field empty. BOOTP/DHCP Configuration Table The BOOTP configuration is enabled by default. If your network has an active BOOTP/DHCP server, the modem obtains its IP parameters automatically during the first 120 seconds after being switched on. An example of the BOOTP/DHCP Configuration table is shown in figure 36.
BOOTP/DHCP Configuration Enable/Disable IP address: Subnetmask: Default Gateway: none none none
Figure 36. BOOTP/DHCP Configuration Table Enable/Disable Click this box to enable/disable the BOOTP/DHCP IP settings. IP Address If you enabled the BOOTP client in the modem, this field shows the IP address assigned to the modem by the BOOTP/DHCP server. Subnet Mask If you enabled the BOOTP client in the modem, this field shows the subnet mask assigned to the modem by the BOOTP/DHCP server. If the server did not distribute a subnet mask, the modem automatically supplies the default netmask for the IP address. Default Gateway If you enabled the BOOTP client in the modem, this field shows the default gateway supplied to the modem. If the server did not distribute a default gateway, the field is set to none.
The modem can operate with multiple IP addresses (multi-homing), but there can be only one active default gateway. If BOOTP/DHCP is enabled, the default gateway supplied in the User Defined Configuration Table is automatically disabled. Even if no default gateway is supplied by the BOOTP/DHCP server, the default gateway entry in User Defined Configuration Table is not used.
Advanced Confiiguratiion Advanced Conf gurat on
This page allows you to configure settings for very specific IP configurations. IP Address Table This table summarizes all IP addresses configured in the modem. It also provides the IP address used for the loopback. An example of the IP Address Table is shown in figure 37.
Intf Ethernet Loopback Address 10.0.0.138 127.0.0.1 Netmask 255.0.0.0 255.0.0.0 Type User Defined Automatic Action Delete None

Figure 42. PPTP Destination Table The additional columns provided in this table are described next. VPI/VCI VPI and VCI values identify an ATM virtual connection. Because the modem comes with preconfigured VPI/VCI values, you do not have to configure these fields. However, if the ISP or corporate network administrator requires VPI/VCI values different from the default values, you must enter those values in these fields. Encap This field indicates the encapsulation of Ethernet or IEEE 802.3 frames to AAL5/ATM protocol. The ADSL modem supports both the LLC/NLPID method and the VC MUX method for bridged Ethernet V2.0/IEEE 802.3 PDUs. By default, this field is set to LLC/NLPID, and the access server of the ISP or corporate network must use the same method. If it does not, contact the ISP or corporate network administrator.
HDLC Framing PPP packets arriving via a PPTP tunnel and PPP packets encapsulated on ATM connections differ in format. The PPP format on AAL5 is shown in figure 43.

P_ID Information Padding

Figure 43. PPP ATM Format The PPP format within a tunnel is shown in figure 44. This format has two additional bytes (FF and 03) in front of the packet, inherited from another encapsulation method (PPP in HDLC-like framing).
Address FF Control 03 P_ID Information Padding
Figure 44. PPP/PPTP Tunnel Format The ADSL modem adapts to the different formats based on the connection type. If problems with operation occur, the modem can be configured to handle the differing formats as follows: When you set this field to never, the modem ensures that FF-03 is never placed in front of a PPP packet encapsulated on an AAL5/ATM connection. This is the default setting. When you set this field to always, the modem ensures that FF-03 is always in front of a PPP packet encapsulated on an AAL5/ATM connection. Although not standard, some equipment may rely on this format. When you set this field to keep, the modem does not alter the PPP packet arriving via a tunnel; it keeps the two bytes in front of the PPP packet when it performs the encapsulation.
System Over viiew Page System Over v ew Page
This page provides an instant overview of all ADSL channels on the ADSL modem. It is a summary of the information provided on the Bridge page and the PPP/PPTP page.
REGULATORY INFORMATION REGULATORY INFORMATION
Enviironmentall Condiitiions Env ronmenta Cond t ons
The equipment may not be mounted at a location exposed to solar and/or heat radiation. The equipment must be mounted in normal living or working areas with a minimum ambient temperature of -5C (23F) in steady state conditions. The equipment may not be subjected to water (even from other sources than rain and icing) and no condensation is allowed. The maximum ambient temperature may not exceed 40C (104F) external to the housing.

Safety Standards Safety Standards
The ADSL high speed modem is compliant with UL 1950.
The ADSL high speed modem is equipped with an external power supply adapter of 120 VAC/60 Hz converting to 9 VDC/1A unregulated output voltage. The supplied adapter has the following output specifications: 9 VDC unregulated output voltage, Maximum 1A output current, Maximum 860 mVeff ripple voltage, and a Limited power source (according to IEC/EN 60950, subclause 2.11).
Confor mance Decllaratiions Confor mance Dec arat ons
Interference Infor matiion Par t 15 of FCC Rulles Interference Infor mat on Par t 15 of FCC Ru es
Your Alcatel product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
If your Alcatel product causes interference to radio or television reception when it is in use, you might correct the interference with any one or all of these measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. Modifications to this product not expressly approved by Alcatel could void the users authority to operate the equipment.
For Canadiian Modem Users For Canad an Modem Users
NOTICE: The Industry Canada (IC) label identifies certified equipment. This certification means that the equipment meets telecommunications network protective, operational, and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document(s). The Department does not guarantee the equipment will operate to the users satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the companys inside wiring associated with a single-line, individual service may be extended by means of a certified connector assembly (telephone extension cord) The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment. Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

If the troubleshooting tips do not resolve the problem, contact the service provider for assistance.
EAlcatel 1999 - All Rights Reserved
3EC 16389 ABAA TCZZA Edition 01

Alcatel 1000 ADSL

(Asymmetric Digital Subscriber Line)

7300 ASAM

(Advanced Services Access Manager)
Network Compatibility Disclosure Document
Interface Specification ASAM Release 4.7/R4.7.05 Feature Group 11.0/11.1 3FE-21110-0008-EUZZA Edition 1 - December 23 , 2004

Status Change Note

Final (WebLib) Network Compatibility Disclosure All rights reserved. Passing on and copying of this document, use and communication of its content not permitted without written authorization from Alcatel.

Short Title

Page 2

3FE-21110-0008-EUZZA

Contents

1.1. 1.2.

Preface.....5
Referenced Documents.....6 Acronyms......7
Overview....9 DSL Interface Characteristics....12
3.1. ADSLx above POTS frequency spectrum usage....12 3.2. ADSLx over ISDN frequency spectrum usage...13 3.3. SHDSL frequency spectrum usage...14 3.4. VDSL frequency spectrum usage....15 3.5. DSL Interfaces available at the ASAM....16 Operating Mode Selection Mechanism for ADSLx...16

4.1. 4.2. 4.3. 4.4. 4.5.

ADSL above POTS: T1.413....17
General.....17 Transport capacity.....17 Framing Modes.....17 Network Timing Reference....18 Data on Pilot Subcarrier 64....18

5.1. 5.2. 5.3. 5.4. 5.5.

ADSL above POTS: G.992.1 Annex A....19
General.....19 Transport capacity.....19 Framing Modes.....19 Network Timing Reference....20 Data on pilot subcarrier 64....20

6.1. 6.2. 6.3. 6.4.

ADSL lite above POTS: G.992.2 Annex A...21
General.....21 Transport capacity.....21 Network Timing Reference....21 Data on pilot subcarrier 64....21

7.1. 7.2. 7.3.

ADSL2 above POTS: G.992.3 Annex A...22
General.....22 Transport capacity.....22 Supported options....22

8.1. 8.2. 8.3.

Extended Reach ADSL2 above POTS: G.992.3 Annex L..24
General.....24 Transport capacity.....24 Supported options....24

9.1. 9.2. 9.3.

ADSL2plus above POTS: G.992.5 Annex A...25
General.....25 Transport capacity.....25 Supported options....25
ADSL2 above POTS with extended upstream bandwidth : G.992.3 Annex M.26
General.....26 Transport capacity....26 Supported options.....26 General.....28 Transport capacity....28 Supported options.....28

10.1. 10.2. 10.3.

ADSL2plus above POTS with extended upstream bandwidth : G.992.5 Annex M..28

11.1. 11.2. 11.3.

ADSL above ISDN: G.992.1 Annex B...30
3FE-21110-0008-EUZZA Page 3

12.1. 12.2. 12.3. 12.4.

General.....30 Transport capacity....30 Framing Modes....30 Network Timing Reference....31 General.....32 Transport capacity....32 Framing Modes....32 Network Timing Reference....33 General.....34 Transport capacity....34 Supported options.....34 General.....36 Transport capacity....36 Supported options.....36 General.....37 Supported options.....37 General.....38 Transport capacity....38 Network Timing Reference....38 General.....39 Transport capacity....39 Network Timing Reference....39 General.....40 Transport capacity....40 Supported features....41
ADSL above ISDN: ETS Annex C...32

13.1. 13.2. 13.3. 13.4.

ADSL2 above ISDN: G.992.3 Annex B...34

14.1. 14.2. 14.3.

ADSL2plus above ISDN: G.992.5 Annex B...36

15.1. 15.2. 15.3.

16. 17.
ADSLx bonding: T1E1.4/2003-334R2...37 SHDSL: G.991.2 Annex A...38
16.1. 16.2. 17.1. 17.2. 17.3.
SHDSL: G.991.2 Annex B....39

18.1. 18.2. 18.3.

VDSL : ETS & T1.424...40

19.1. 19.2. 19.3.

Annex A: ADSL non-standard facilities...42
A.1 Vendor information.....42 A.2 Non-standard facilities....42 A.2.1 Data on pilot subcarrier 64....42 A.3 G.994.1 NSIF codepoints....43
Annex B: ATM Layer Interoperability...45
B.1 B.2 B.3 B.4 B.5 B.6 C.1 C.2 C.3 C.3 C.4 Referenced Documents....45 PMD & TC Layers....46 ATM Cell Header Format....46 Traffic Control & Congestion Control....48 OAM Flows.....49 ILMI......50 Referenced Documents....51 AAL5 layer....52 LLC-SNAP layer.....52 Ethernet layer.....53 DHCP relay.....53
Annex C: Ethernet Layer Interoperability...51

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1. Preface
Alcatels DSL Access Multiplexers include the 1000 ADSL and the second generation 7300 ASAM. These products constitute access systems for any ATMbased Broadband ISDN (BB ISDN) switching fabric. Each system delivers narrowband services (POTS or ISDN) and broadband services (DSL) to subscribers over the widely installed single metallic pair subscriber loop base. The 7300 ASAM adds SHDSL and VDSL broadband service offerings. This document specifies the DSL physical layer interfaces based on ANSI, ETSI, and ITU standards : ANSI Standard T1.413 [1] and T1.424/Trial Use [13], [14], [15] ETSI Technical Specification ETS [2] and ETS [10] and ETS [11], [12] ITU-T Recommendation G.992.1[3], G.992.2[4] ,G.992.3 [5], G.992.4 [6], G.992.5 [7], G.994.1 [8] , G.991.2 [9]. Also annexes are added, describing: Annex A: G.994.1 Non-Standard Facilities; Annex B: ATM Layer Interoperability; Annex C: Ethernet Layer Interoperability. This document provides the specification of the digital subscriber line interface. It refers to publicly available standards wherever possible. The xTUC transmitter characteristics are described as they apply to the Alcatel 1000 ADSL and 7300 ASAM central office and remote (e.g. Remote Access Multiplexer and cabinetbased ASAM) equipment. The majority of this document is relevant to both the 1000 ADSL and 7300 ASAM equipment, as applicable for providing ADSL services. Information is also included for ADSL2x, SHDSL and VDSL service capabilities, which are only supported by the 7300 ASAM. The xTUR transmitter requirements are specified with respect to interoperability with the Alcatel xTUC. xTUC characteristics and xTUR requirements that may affect interoperability of the Alcatel xTUC with an xTUR are highlighted in this document.

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Referenced Documents
The following documents are referenced: [1] ANSI Standard T1.413-1998, Network and Customer Installation Interfaces Asymmetrical Digital Subscriber Line (ADSL) Metallic Interface, publication by the ANSI. [2] ETSI Technical Specification ETS (RTS/TM-06025), Access transmission systems on metallic access cables; Asymetric Digital Subscriber Line (ADSL), Version 1.3.1, Feb 2002 [3] ITU-T Recommendation G.992.1, Asymmetrical Digital Subscriber Line (ADSL) Transceivers, publication by the ITU-T, 1999. [4] ITU-T Recommendation G.992.2, Splitterless Asymmetrical Digital Subscriber Line (ADSL) Transceivers, publication by the ITU-T, 1999. [5] ] ITU-T Recommendation G.992.3, Asymmetrical Digital Subscriber Line (ADSL) Transceivers - 2 (ADSL2) , publication by the ITU-T, July 2002. [6] ITU-T Recommendation G.992.4, Splitterless Asymmetrical Digital Subscriber Line (ADSL) Transceivers - 2 (Splitterless ADSL2), publication by the ITU-T, July 2002 [7] ITU-T Recommendation G.992.5, Asymmetrical Digital Subscriber Line (ADSL) Transceivers - Extended bandwidth ADSL2 (ADSL2plus) , publication by the ITU-T, Mai 2003 [8] ITU-T Recommendation G.994.1, Handshake Procedures for Asymmetrical Digital Subscriber Line (ADSL) Transceivers, publication by the ITU-T, 1999 and 2001. [9] ITU-T Recommendation G.991.2, Single-Pair High Speed Digital Subscriber Line (SHDSL) Transceivers, publication by the ITU-T, 2001. [10] ETSI Technical Specification ETS 101 524, Symmetric single pair high bit rate digital subscriber line (SDSL) transmission system on metallic local lines, version 1.1.2, August 2001. [11] ETSI Technical Specification ETS 101 270-1, Access transmission systems on metallc access cables; Very high speed Digital Subscriber Line (VDSL); Part 1 : Functional requirements", Version 2.0.9, May 2005 [12] ETSI Technical Specification ETS 101 270-2, Access transmission systems on metallc access cables; Very high speed Digital Subscriber Line (VDSL); Part 2 : Transceiver specification", Version 2.0.7, May 2005

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[13] ANSI Standard T1.424/Trial-Use, Interface Between Networks and Customer Installations -- Very-high Speed Digital Subscriber Lines (VDSL) Metallic Interface ; Part 1 : Functional Requirements and Common Specification", T1E1.4/2002-031R2, Feb 2002. [14] ANSI Standard T1.424/Trial-Use, Interface Between Networks and Customer Installations -- Very-high Speed Digital Subscriber Lines (VDSL) Metallic Interface ; Part 2 : Technical Specification for a Single-Carrier Modulation (SCM) Transceiver", T1E1.4/2001-011R3, Nov 2001. [15] ANSI Standard T1.424/Trial-Use, Interface Between Networks and Customer Installations -- Very-high Speed Digital Subscriber Lines (VDSL) Metallic Interface ; Part 3 : Technical Specification of a Multi-Carrier Modulation Transceiver", T1E1.4/2002-099, Feb 2002. [16] Draft ANSI Standard on ATM based Multi-Pair Bonding. T1E1.4/2003-334R2, February 2004

ADSLx/VDSL CPE

Figure 1 ADSL Network Architecture (with POTS Splitter). In the case of Figure 1, a NB splitter is located at the entrance of the customer premises. A POTS splitter is used for operation of ADSLx/VDSL above POTS. An ISDN splitter is used for operation of ADSLx/VDSL above ISDN.

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TYPICALLY ETHERNET OR USB INTERFACE
ADSLx/VDSL ACCESS SUBSCRIBER PREMISES

ASAM LPF

DIGITAL SUBSCRIBER LINE INTERFACE (U-R1 = U-R2)

(optional LPF) LPF

Figure 2 Splitterless ADSL Network Architecture (without POTS SPLITTER). In the case of Figure 2, no NB SPLITTER is used at the entrance of the subscriber premises. Low Pass Filters (LPF) may be used instead to shield phone sets (or other voice band appliances) from interfering with the ADSLx/VDSL signal. Depending on the phone set characteristics, the absence of such LPF may have a severe impact on the achievable ADSLx/VDSL data rate. SHDSL : Figure 3 shows the general SHDSL architectures and interfaces. The following main building blocks can be distinguished: ASAM with SHDSL interface at the network side. SHDSL Customer Premises Equipment (CPE) at the subscriber side.

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SHDSL ACCESS SUBSCRIBER PREMISES TYPICALLY ETHERNET OR USB INTERFACE

ASAM POTS/ISDN INTERFACE

SHDSL CPE
DIGITAL SUBSCRIBER LINE INTERFACE (U-R)
Figure 3 SHDSL Network Architecture. In the case of Figure 3, the SHDSL CPE is shown with example data and voice services. Alternatively, more business-oriented interfaces may be provided, e.g., PABX interconnect.

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3. DSL Interface Characteristics
3.1. ADSLx above POTS frequency spectrum usage
The Digital Subscriber Line (DSL) interface carries the normal Plain Old Telephone Service (POTS) frequencies multiplexed with the upstream and downstream ADSLx signals. The interface connects the ATUR (in the CPE) to the ATU-C (in the ASAM) via the copper access network. Normal subscriber line wire is used for the connection. The upstream and downstream signals are DMT modulated. A (qualitative) view of the DMT power spectrum density (PSD) used in the ADSLx modem is shown in Figure 4.

Operating Mode Selection Mechanism for ADSLx
Depending on the supported operating modes by the ATU-R, the ATU-C will give priorities according to following list, assuming the operator allowed all supported operating modes to be executed : 1. G.992.5 (ADSL2plus), Annex M 2. G.992.3 (ADSL2), Annex M 3. G.992.5 (ADSL2plus), Annex A or B (exclusive) 4. G.992.3 (ADSL2), Annex A or L (*), or B (exclusive) 5. G.992.1 (ADSL), Annex A or B (exclusive) 6. G.992.2 (ADSL-lite), Annex A 7. T.413 (ANSI-ADSL) or ETS Annex C (exclusive) (*) When the ATU-R supports as well G.992.3 Annex L (READSL2), then priority selection between Annex A and Annex L is configurable by operator, and based on optimising the downstream or the upstream bitrate.

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4. ADSL above POTS: T1.413
The ANSI Standard T1.413-1998 is also known as T1.413 Issue 2 or ANSI-ADSL

General

The U-C interface is compliant with T1.413 [1], unless explicitly stated in this section. The U-R interface shall be compliant with T1.413 [1]. The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with sections 4.2.2, 5.2, and 6.2 of T1.413 [1]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with sections 4.3.2, 5.2, and 7.2 of T1.413 [1].

Transport capacity

The transport capacity of the ATUC complies with section 5.2 of T1.413 [1]. It supports downstream transmission at all multiples of 32 kb/s up to a net data rate of 6.144 Mb/s, and upstream reception at all multiples of 32 kb/s up to a net data rate of 640 kb/s upstream. The transport capacity of the ATUR shall comply with section 5.2 of T1.413 [1]. It shall support downstream reception at all multiples of 32 kb/s up to a net data rate of 6.144 Mb/s, and upstream transmission at all multiples of 32 kb/s up to a net data rate of 640 kb/s. The maximum downstream transport capacity of the ATUC implementation is 255 x 32 = 8160 kb/s (total data rate). The actual downstream transport capacity depends upon the line characteristics measured at modem initialization and the implementation limitations of the ATU-R. The ADSL system overhead depends on the modem configuration and can be as low as 32 kb/s.

Framing Modes

The framing modes supported by the ATU-C are compliant with T1.413 [1], with the exception of the support of framing mode 0. The bit stuffing mechanism that may be activated in framing mode 0 provides data rate decoupling. The same functionality is achieved through ATM Idle Cell insertion. Other framing mode 0 functionality is also provided in framing mode 1. Framing mode 1 is supported by the ATU-C. Not supporting framing mode 0 does not affect interoperability with an ATUR compliant with T1.413 [1]. However, interoperability with a (non T1.413 compliant) ATMoverSTM ATUR is not assured (see T1.413 [1] section 6.2.4).

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Network Timing Reference
The ATU-C inserts the Network Timing Reference in the ADSL frame, as specified in T1.413 [1]. The ATU-R may recover the Network Timing Reference from that information.
NOTE On the 1000 ADSL Platform, the ATU-C does not insert the Network Timing Reference. The NTR bit in C-MSG1 is always coded 0. The downstream indicator bits 2320 are always coded 1111.
Data on Pilot Subcarrier 64
The T1.413 standard specifies that no data shall be carried on the downstream pilot (tone 64). However, the ability to modulate data bits on the downstream pilot can be enabled through the vendor ID field of the CPE. If this additional functionality is enabled, the ATU-R may consider tone 64 as a regular data-carrying tone.

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5. ADSL above POTS: G.992.1 Annex A
The ITU-T Recommendation G.992.1 is also known as G.dmt.
The U-C interface is compliant with G.992.1 Annex A [3] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.1 Annex A [3] (including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with sections 5.1.2, 6.2, and 7.2 of G.992.1 [3]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with sections 5.2.2, 6.2, and 8.2 of G.992.1 [3].
The transport capacity of the ATUC complies with section 6.2 of G.992.1[3]. It supports downstream transmission at all multiples of 32 kb/s up to a net data rate of 6.144 Mb/s, and upstream reception at all multiples of 32 kb/s up to a net data rate of 640 kb/s upstream. The transport capacity of the ATUR shall comply with section 6.2 of G.992.1 [3]. It shall support downstream reception at all multiples of 32 kb/s up to a net data rate of 6.144 Mb/s, and upstream transmission at all multiples of 32 kb/s up to a net data rate of 640 kb/s. The maximum downstream transport capacity of the ATUC implementation is 255 x 32 = 8160 kb/s (total data rate). The actual downstream transport capacity depends upon the line characteristics measured at modem initialization and the implementation limitations of the ATU-R. The ADSL system overhead depends on the modem configuration and can be as low as 32 kb/s.

The U-C interface is compliant with G.992.3 Annex L [5] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.3 Annex L [5](including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with section 7.1 and Annex K2 of G.992.3 [5]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with section 7.1 and Annex K2 of G.992.3 [5].
The ATU-C does not support following optional features of G.992.3 Annex L [5]: Section L1.2, downstream overlapped spectrum reach-extended operation

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9. ADSL2plus above POTS: G.992.5 Annex A
The ITU-T Recommendation G.992.5 is also known as ADSL2plus
The U-C interface is compliant with G.992.5 Annex A [7] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.5 Annex A [7] (including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with section 7.1 of G.992.5 [7]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with section 7.1 of G.992.5 [7].
The transport capacity of the ATUC complies with section K of G.992.5 [7]. It supports downstream transmission up to a net data rate of 16 Mb/s, and upstream reception up to a net data rate of 800 kb/s upstream. The transport capacity of the ATUR shall comply with section K of G.992.5 [7]. It shall support downstream reception up to a net data rate of 16 Mb/s, and upstream transmission up to a net data rate of 800 kb/s. The actual transport capacity depends upon the line characteristics measured at modem initialization and the implementation limitations of the ATU-R. The ADSL system overhead depends on the modem configuration and can be as low as 4 kb/s.
The ATU-C complies with following optional features of G.992.5 [7] (besides the supported G.992.3 optional features, see section 7.3) : Section K, support of net data rate above 16 Mbit/s in downstream direction, and above 800 kbit/s in upstream direction Section 8.13.5.1.4, support of 14th order PRMB in C-MEDLEY. The ATU-C does not support following optional features of G.992.5 [7] (besides the G.992.3 optional features, see section 7.3) : <none>

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10. ADSL2 above POTS with extended upstream bandwidth : G.992.3 Annex M

10.1. General

The U-C interface is compliant with G.992.3 Annex M [5] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.3 Annex M [5](including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with Annex K2 of G.992.3 [5]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with Annex K2 of G.992.3 [5].

10.2. Transport capacity

10.3. Supported options
The ATU-C complies with following optional features of G.992.3 [5] : Section K2, support of net data rate above 8 Mbit/s in downstream direction, and above 800 kbit/s in upstream direction Section 6.3, number of enabled TPS-TC frame bearers = 1 Section 7, number of enabled latency path functions in PMS-TC = 1 Section 8.13.3.1.11, the ATU-C takes into account the spectrum shaping on the 3 indicated subcarriers when determining the required upstream power cutback value. Section 8.15, loop diagnostics
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Section M2.2. : PSD Mask EU56 is supported
The ATU-C does not support following optional features of G.992.3 [5] : Section 8.14, short initialization sequence Section 8.17 and 9.5, L2 mode Section 9.4.1.8, Clear EOC Section 9.5, orderly shutdown to L3 mode Section 10.2, Seamless Rate Adaptation (SRA) Section K2.7, IMA in ATM TPS-TC Section M2.2 : all other than EU56 PSD masks

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11. ADSL2plus above POTS with extended upstream bandwidth : G.992.5 Annex M

11.1. General

The U-C interface is compliant with G.992.5 Annex M [7] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.5 Annex M [7] (including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with section 7.1 of G.992.5 [7]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with section 7.1 of G.992.5 [7].

11.2. Transport capacity

13.3. Framing Modes

The framing modes supported by the ATU-C are compliant with ETS Annex C [2], which references T1.413 [1], with the exception of the support of framing mode 0. The bit

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stuffing mechanism that may be activated in framing mode 0 provides data rate decoupling. The same functionality is achieved through ATM Idle Cell insertion. Other framing mode 0 functionality is also provided in framing mode 1. Framing mode 1 is supported by the ATU-C. Not supporting framing mode 0 does not affect interoperability with an ATUR compliant with ETS Annex C [2]. However, interoperability with a (non ETS Annex C [2] compliant) ATM-over-STM ATUR is not assured (see ETS Annex C [2], which references T1.413 [1] section 6.2.4).
13.4. Network Timing Reference
The ATU-C inserts the Network Timing Reference in the ADSL frame, as specified in ETR Annex C [2] (referencing T1.413 [1]). The ATU-R may recover the Network Timing Reference from that information.

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14. ADSL2 above ISDN: G.992.3 Annex B
The U-C interface is compliant with G.992.3 Annex B [5] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.3 Annex B [5](including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with Annex K2 of G.992.3 [5]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with Annex K2 of G.992.3 [5].

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15. ADSL2plus above ISDN: G.992.5 Annex B
The U-C interface is compliant with G.992.5 Annex B [7] (including G.994.1[8]), unless explicitly stated in this section. The U-R interface shall be compliant with G.992.5 Annex B [7] (including G.994.1 [8]). The UC interface is an ATM cellbased interface. The ATUC is configured for ATM transport and complies with section 7.1 of G.992.5 [7]. The UR interface shall be an ATM cellbased interface. The ATUR shall be configured for ATM transport and shall comply with section 7.1 of G.992.5 [7].

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16. ADSLx bonding: T1E1.4/2003-334R2

16.1. General

ATM Multi-Pair Bonding is compliant to T1E1.4/2003-334R2 [[16]],
The ATU-C complies with following optional features of T1E1.4/2003-334R2 [[16]] : - Section 5.1 : both 8 bit and 12 bit SID supported - Max number of supported lines in bonding group = 2 The ATU-C does not support following optional features of T1E1.4/2003-334R2 [[16]] : - Support of bonding groups with more than 2 lines

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17. SHDSL: G.991.2 Annex A

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B.6 ILMI
The ASAM supports automatic configuration of the CPE, compliant to [ATMF-ILMI]. The configuration entails ATM Interface attributes Virtual Path attributes Virtual Circuit attributes that can be retrieved by the CPE from the ASAM. The auto-configuration is restricted to the ATM layer; service layer information cannot be retrieved.

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Annex C: Ethernet Layer Interoperability
This annex is only applicable for an ASAM equipped with an Ethernet northbound interface. This annex is published by Alcatel to provide a technical description of the Ethernet layer of the user network interface. It is intended as a guideline for thirdparty Ethernet systems to successfully inter-operate with the ASAM. An ASAM equipped with an Ethernet northbound interface needs to terminate the ATM VCC from the user network interface, segment or reassemble the AAL5-frame and encapsulate/decapsulate the Ethernet frames. The corresponding protocol stack at the user network interface is shown in the next figure.
anything Ethernet LLC-SNAP AAL5 ATM xxx Ethernet II, IEEE 802.3 RFC 2684 ITU-T I.363 ITU-T I.361 Any Transport Layer, e.g. ADSL
The Transport Layer and ATM interface specifications for an ASAM with Ethernet network interface follow the generic ASAM interface specifications given in the preceding chapters. The following subsections will describe the AAL5, LLC-SNAP and Ethernet specifications at the user network.

C.1 Referenced Documents

[ITUT-I.363.5] ITU-T Recommendation I.363.5 ISDN Overall network aspects and functions Protocol layer requirements (08/96). BISDN ATM Adaptation Layer Specification: Type 5 AAL. [RFC2684] Request For Comments 2684. Multiprotocol Encapsulation over ATM Adaptation Layer 5. [IEEE802.3] IEEE Std 802.3-2002 IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications [IEEE802.1Q] IEEE Std 802.1Q-1998 IEEE Standards for Local and Metropolitan Area Networks: Virtual Bridged Local Area Networks
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[IEEE802.1ad] IEEE P802.1ad/D2.0 Draft Standard for Local and Metropolitan Area Networks Virtual Bridged Local Area Networks Amendment 4: Provider Bridges [RFC2131] Request For Comments 2131 Dynamic Host Configuration Protocol. [RFC3046] Request For Comments 3046 DHCP Relay Agent Information Option

C.2 AAL5 layer

The ASAM implements the AAL5 according to [ITUT-I.363.5] with a null SSCS sublayer. The CPE shall send AAL5-frames with maximum CPCS-SDU size of 1536 bytes. The CPE shall also be able to receive AAL5-frames with a CPCS-SDU size up to 1532 bytes. Note that the CPCS-SDU size includes possible LLC/SNAP encapsulation, VLAN- and Ethernet headers. It does not include the AAL5-padding nor AAL5-trailer.

C.3 LLC-SNAP layer

The ASAM implements the LLC-SNAP Bridged encapsulation according to [RFC2684]. It is able to receive encapsulated Ethernet frames with or without FCS. When sending frames, the ASAM always applies the Ethernet encapsulation without FCS. The ASAM does not support any other encapsulation method such as the LLC-SNAP Routed encapsulation or the VCmultiplexing method. When sending frames, the CPE shall apply the LLC-SNAP encapsulation type for Bridged Ethernet/802.3 PDUs. I.e. the CPE shall use the following LLC-SNAP encoding: LLC-SNAP header from CPE to ASAM RFC2684 header field LLC (Logical Link Control) OUI (Organisationally Identifier) PID (Protocol Identifier) PAD (padding) 0xAA-AA-03 Unique 0x00-80-C2 0x00-01 if the Ethernet FCS is present 0x00-07 if the Ethernet FCS is absent 0x00-00 Value

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The CPE shall at least be able to receive frames with the LLC-SNAP encapsulation type for Bridged Ethernet/802.3 PDUs with absent Ethernet FCS. I.e. the CPE shall use the following LLC-SNAP encoding: LLC-SNAP header from ASAM to CPE RFC2684 header field LLC (Logical Link Control) OUI (Organisationally Identifier) PID (Protocol Identifier) PAD (padding) 0xAA-AA-03 Unique 0x00-80-C2 0x00-07 if the Ethernet FCS is absent 0x00-00 Value

C.3 Ethernet layer

The ASAM allows both the Ethernet II and the IEEE802.2/802.3 frame formats except for DHCP relay messages, see section C.4). Both types follow the IEEE 802.3 MAC-frame layout according to [IEEE802.3]. The CPE shall not send any other but these EthernetII/802.3 frame types. An obvious exception is that the Ethernet FCS may be absent, as discussed in the previous section on LLC/SNAP encapsulation. Optionally, one VLAN-header according to [IEEE802.1Q] may be present on the interface between ASAM and CPE. If the CPE is sending VLAN-tagged frames, then it must also be able to receive VLAN-tagged frames. Otherwise, the CPE is not required to receive VLAN-tagged frames. Optionally, two VLAN-headers according to [IEEE802.1ad] may be present on the interface between ASAM and CPE. If the CPE is sending dual VLAN tagged frames, then it must also be able to receive dual VLAN tagged frames. Otherwise, the CPE is not required to receive dual VLAN-tagged frames. Preceding the S-VLAN tag of these dual VLAN tagged frames, the CPE shall use the same value for the 802.1Q Service Tag Type as the value configured in the ASAM. If the traffic from the CPE is switched in the ASAM by means of a QoS-aware VLAN crossconnection, then the CPE shall not multicast or flood the frames to more than one upstream VC.

DHCP relay

ASAM supports the functionality of DHCP relay agent. When the DHCP relay agent is enabled, the user shall not send out a DHCP message in IEEE 802.3 MAC frame, since this mode is not supported by ASAM.

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The ASAM only accepts DHCP messages originated directly from DHCP client. The DHCP relay agent at user side is not supported, so all DHCP messages, already relayed by another relay agent near to the user, is dropped. In another words, the ASAM shall be the first DHCP relay agent on the way from DHCP client to DHCP server. The ASAM does not support fragmented DHCP messages. If a fragmented DHCP message is received, the ASAM will drop the first fragment, and forward transparently the remained fragments. The DHCP client shall send out DHCP messages, in which the chaddr field shall be the MAC address of length of 6 bytes. The DHCP client shall not send out unicast DHCP messages with ciaddr=0. For DHCP messages encapsulated in IPsec packets, the ASAM forwards them transparently. If the DHCP relay agent is enabled, the user shall not send out this kind of packet. The ASAM can also support the function of option 82. If option 82 is enabled, the ASAM considers all user ports as distrusted ports, that means all DHCP messages with option 82 received from the user side will be dropped. The concept of trusted port is not supported by the ASAM.

End of document

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