ch7.pdf

JTO Ph-II (DNIT) OCLAN DSLAM & CPE 7 OCLAN SWITCH, DSLAM & CPE 7.1 LEARNING OBJECTIVES  concept of OCLAN switch, DSLAM & CPE  Their architecture used in BSNL  Features and working principle of OCLAN switc...

JTO Ph-II (DNIT) OCLAN DSLAM & CPE 7 OCLAN SWITCH, DSLAM & CPE 7.1 LEARNING OBJECTIVES  concept of OCLAN switch, DSLAM & CPE  Their architecture used in BSNL  Features and working principle of OCLAN switch, DSLAM & CPE 7.2 INTRODUCTION DSL is a generic abbreviation for the many flavors of DSL or Digital Subscriber Line technology. DSL refers to the technology used between a customer's premises and the telephone network. Typically speeds start at about 128Kb/s and go up to 1.5Mb/s for most home users. The service providers adopt various kinds of DSL technologies. ADSL and VDSL technologies are most popular for providing the broadband service to customer. Traditional POTs lines, copper loops, are used as access from DSLAM to customer premises. Equipments provided at customer premises are termed as DSL-CPE which posses enabling routing and bridging functions via a single DSL connection for high-quality and desired throughput data transfer. These devices are capable of transferring Triple play applications. It provides the connectivity of Voice and Data Call. An interface for phone line is extended which is used for the telephone call. Basically DSL-CPE is acting like a splitter, which is able to, recognized the voice samples and data packets and accordingly divert to phone or PC/computer. The OC LAN switch is deployed as Tier-2 Network Device in the BSNL Multi Play connecting the Tier-1 RPR to DSLAM in other cities. ZXR10 T64G MPLS 10G Routing Switch is deployed as OC-LAN Switch in BSNL Multi Play project. ZXR10 T64G is applicable to the core layer and convergence layer of the large-scale enterprise networks. The system features high reliability, high scalability, and powerful service capability. This product can be used to build the convergence layer and core layer of our network. Back plane bandwidth can reach 900 Gbps with switching capacity of 480 Gbps. It features with a packet-forwarding rate of 357 Mbps with L2/L3/L4 wire speed switching capability. The ZXR10 T64G MPLS 10G Routing Switch adopts modular design and a parallel processing mechanism based on multiple processors. T64G adopts Crossbar architecture. The key module adopts 1:1 redundancy backup. It supports a wide variety of interfaces, such as 10GE; GE, FE, and POS and can provide multiple service functions such as MPLS, NAT, QoS, multicast and bandwidth control. ZXR10 T160G/T64G is an Ethernet routing switch developed by ZTE Corporation which can be applicable to the backbone layer. ZXR10 T160G/T64G provides the interfaces including fast Ethernet, gigabit Ethernet. OCLAN can satisfy the increasing requirements for bandwidth. ZXR10 T160G/T64G also supports multiple Unicast and multicasting protocols. JTO Ph-II Version 3.0 Aug 2021 Page 59 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE 7.3 WORKING PRINCIPLE ZXR10 T64G is a large-capacity rack mountable Ethernet switch which implements wire-speed Layer2/3 switching via two-level hardware switching. Level 1 switching is between ports of line interface cards; Level 2 switching between line interface cards is implemented via control switching board. 7.4 FEATURES OF THE OCLAN SWITCH 1. high reliability 2. high scalability 3. Powerful service capability. This can be used to build the convergence layer and core layer of our network. The Back plane bandwidth can reach 900 Gbps with switching capacity of 480 Gbps. These switches provide packet-forwarding rate of 357 Mbps with L2/L3/L4 wire speed switching capability. It supports a wide variety of interfaces, such as 10GE; GE, FE, and POS and can provide multiple service functions such as MPLS, NAT, QoS, multicast and bandwidth control. 7.5 HARDWARE STRUCTURE OF ZXR10 T64G It adopts the structure of standard 19-inch plug-in box. ZXR10 T64G has 6 plug-in slots, one of which is slot for control and switching board, four of which are for line interface card, and the left one can serve as the slot for control and switching board or line interface card. ZXR10 T64G includes the following four modules: 1. Control module 2. Switching module 3. Packet processing and interface module 4. Power supply module 5. Fan Module CONTROL MODULE: It is composed of main processor and some external functional chips, which implements processing to applications of the system. It provides various operational interfaces including serial interface and Ethernet interface to perform data operation and maintenance. SWITCHING MODULE: It provides multiplex high-speed bi-directional serial interface to implement wire- speed data switch between line interface cards. JTO Ph-II Version 3.0 Aug 2021 Page 60 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE PACKET PROCESSING AND INTERFACE MODULE: Interface module is the external interface of ZXR10/160G/T64G, providing one or multiple physical ports. Different line interface cards can implement access of different rates and types. POWER SUPPLY MODULE: It adopts 220V AC power supply or –48V DC power supply, providing power for other parts of the system. 7.6 CONFIGURATION OF LAPTOP FOR ACCESSING ZXR10 T64G VIA CONSOLE PORT: 1. Connect the PC‘s serial port and OCLAN switch‘s Console port in the Control 2. Switching module. 3. Go to 4. All Programs 5. Accessories 6. Communications 7. HyperTerminal 8. And set the following parameters as shown after selecting the appropriate COM port. 9. Bits per sec : 115200 10. Data bit : 8 SWITCH : ZXR10 T64G Chassis OEM : ZTE Corporation 11. Parity : none 12. Stop bit : 1 13. Flow Control : none Figure 31: Unit/Component introduction JTO Ph-II Version 3.0 Aug 2021 Page 61 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE 7.7 CONTROL SWITCHING BOARD The Control Switching Board (MCS) is the core of ZXR10 T64G, implementing the functions of control module and switching module. It performs the function of master/slave switchover. Interfaces Available Console Interface 10/100 base TX Ethernet Interface. Line Interface Cards The Line Interface cards include Fast Ethernet Interface board, Gigabit Ethernet Interface board and 10giga bit Ethernet board.10 GB Ethernet is not being used in BSNL currently. 44 FE + 4 GE Interface Board 44 FE + 4GE Interface card board provides 44 Fast Ethernet Optical Interfaces and 4 gigabit Ethernet electrical Interfaces. 24 port Gigabit Ethernet Interface Board This provides 4 gigabit Ethernet Electrical Interfaces and 20 Ethernet Optical Interfaces. Line Interface Cards Used 1 * 44FE + 4GE Interface card 2 * 24 FE Interface Card Ports Used in BSNL currently GE Interfaces populated with SFPs : 17 Nos. FE Interfaces populated with SFPs : 16 Nos. 7.8 ROLE OF OCLAN SWITCH OCLAN Switch which becomes the Tier 2 component of the network resides in the Access layer. OCLAN switches aggregate the number of DSLAMs in every OC cities as required in the project. JTO Ph-II Version 3.0 Aug 2021 Page 62 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE Figure 32: OCLAN front view OCLAN Switch which becomes the Tier 2 component of the network resides in the Access layer. OCLAN switches aggregate the number of DSLAMs in every OC cities as required in the project. Note: 1. PDP should be fixed at the front side of Rack and should be at the TOP. 2. Between PDP and OCLAN Rack there should be 2U gap. Power Cabling: 1. Power cable and Lugs for OCLAN is shipped along with the equipment and connect it accordingly and on PDP side crimp the –ve with point type lug and other two ( +ve and ground ) with round type. JTO Ph-II Version 3.0 Aug 2021 Page 63 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE 7.9 CONTROL AND LINE INTERFACE CARD INSERTION RULE Figure 33: Control & Line Interface cards of OCLAN Note : Each Slot in the slot numbered from 1 to 6 from top of the switch has to be populated with appropriate cards as shown in the figure above. SFP MODULE INSERTION RULE As described in the above figure, slot 1 populated with 44 FE + 4 GE card will be inserted with the following SFP modules. 4 GE SFPs in port numbered 45, 46, 47 and 48 8 FE SFPs in port numbered 1, 2, 3, 4, 5, 6, 40 and 41 Port 40 to be configured for Uplink. Port 41 is reserved for Uplink All other ports mentioned above to be configured for connecting DSLAMs Slot 5 populated with 24 GE card will be inserted with the following SFP modules. 9 GE SFPs in port numbered 5, 6, 7, 8, 9, 10, 11, 12 and 13 7.10 FIBER CABLING DETAILS Card S Type Port no SFP/XFP Fiber Cable Connecting to lot Type Type no 44 FE + 4 1 to 6 FE SFP LC-FC DSLAM via BSNL 1 Multimode GE provided Converters JTO Ph-II Version 3.0 Aug 2021 Page 64 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE 40,41 FE SFP LC-FC T1 via UT Starcom Multimode supplied STM Converter 45 to GE SFP LC-FC Single DSLAMs 48 mode 1 to 6 FE SFP LC-FC DSLAM via BSNL Multimode provided Converters 44 FE + 4 40,41 FE SFP LC-FC T1 via UT Starcom GE 2 Multimode supplied STM Converter 45 to GE SFP LC-FC Single DSLAMs 48 mode 5 24GE 5 to 13 GE SFP LC-FC DSLAMs Single mode Table 1. Fibre cable details 7.11 OPTICAL POWER RANGE FOR TRANSCEIVERS IN OCLAN SWITCH Tx Optical Power Range Rx Optical Power Range Transceiver Type Fiber Type in dBm in dBm Min Max Min Max GE SFP SMF -5 2 -22 -3 FE SFP MMF -9.5 -3 -17 0 Table 2. Optical power range Note: Use 0 dB attenuators for GE Transceivers. For FE Transceivers, use attenuators of appropriate dB so as to attain Optical Power within the given range, preferably towards the Rx Minimum value. 7.12 DSLAM DSLAM is an integrated hardware and software system that allows the user to access Broadband services as well as originate and terminate telephone calls over the same single pair of copper wires. To enable DSL technology, service providers must have a DSLAM located in their networks to interact with the customer premises equipment (CPE) at the end user location. JTO Ph-II Version 3.0 Aug 2021 Page 65 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE A Digital Subscriber Line Access Multiplexer (DSLAM) delivers exceptionally high- speed data transmission over existing copper telephone lines. A DSLAM separates the voice-frequency signals from the high-speed data traffic and controls and routes digital subscriber line (xDSL) traffic between the subscriber's end-user equipment (router, modem, or network interface card [NIC]) and the network service provider's network. A DSLAM takes connections from many customers and aggregates them onto a single, high-capacity connection to the Internet. DSLAMs are generally flexible and able to support multiple types of DSL in a single central office, and different varieties of protocol and modulation, both CAP and DMT, in the same type of DSL. The DSLAM may provide additional functions including routing or dynamic IP address assignment for the customers. The DSLAMs is in general be collocated with existing PSTN exchanges which provide last mile access to customers over copper wire up to average span lengths of 3KMs. 7.13 FEATURES OF DSLAM A multiservice DSLAM is a broadband-access network element (NE) that combines support for multiple DSL transmission types. When coupled with high-capacity asynchronous transfer mode (ATM) switching, multiservice DSLAM‘s deliver scalability, port density, and a redundant architecture for reliability. Such DSLAMs often allow for full ATM switching, traffic management, and quality of service (QoS), in addition to the delivery of a full range of services. These services include analog, ISDN, IDSL, SDSL, rate-adaptive DSL–competitive access provider (RADSL–CAP), and RADSL–discrete Multitone (DMT) on a single platform. DSLAM separates Voice and Data of the Subscriber i.e. it separates the voice frequency signal from High Speed data traffic. Voice is given to the exchange switch. Data is fed to the IP Network through the LAN Switch. Routes and Controls Digital Subscriber Line (xDSL) traffic between the subscriber‘s end-user equipment (Router, Modem, or Network Interface Card (NIC) and the Network Service Provider‘s network. DSLAMs have been categorized in to 6 types based on no. of ports (960,480, 240,120, 64, 48 & 24) provided and planned for deployment based on the expected demand. DSLAM provides Access from 128Kbps to 8Mbps. DSLAM supports for QOS features such as Committed Access Rate between CPE and DSLAM, Traffic Policing per port. DSLAM works Satisfactory without any degradation in performance and without using any repeater/regenerator over a distance for various access speeds for 0.5mm copper pair. Table 3. Distance from DSLAM and Bit Rate JTO Ph-II Version 3.0 Aug 2021 Page 66 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE Figure 34: DSLAM deployment in Broadband 7.14 IMPLEMENTATION OF DSLAM Broadband connectivity is extended to these DSLAM through the core network via the LAN switch. DSLAMs are generally aggregated through a Fast Ethernet or Gigabit Ethernet Interface. The connectivity of these DSLAM and their capacity is planned according to the location and subscriber base. Huawei SMARTEX MA 5300 480, 240, 120 ports DSLAM Huawei SMARTEX MA 5300 64, 48 and 24 ports DSLAM UTStarComm AN2000 IB IPDSLAM 480, 240, 120 ports DSLAM JTO Ph-II Version 3.0 Aug 2021 Page 67 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE Figure 35: Connectivity of DSLAM Figure 36: Connectivity of DSLAM JTO Ph-II Version 3.0 Aug 2021 Page 68 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE Figure 37: Connectivity of DSLAM AN2000-IB IP DSLAM The AN-2000 IB™ is a carrier class IP-based DSLAM that delivers always-on, high- speed Internet data and video services to subscribers over a wireline network. The AN-2000 IB interfaces directly with the IP MAN (metropolitan area network) to deliver broadband data services cost-effectively and eliminate the need for costly ATM infrastructure. Service providers to protect their investment and strengthen customer relationships by offering their customers a wide variety of creative interactive services and applications. This low-cost, high-performance IP-based solution seamlessly migrates the access network from narrowband voice-only services to full broadband capabilities. Figure 38: Connectivity of DSLAM The AN-2000 IB solution offers the following advantages: JTO Ph-II Version 3.0 Aug 2021 Page 69 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE  Unlimited Scalability Build out the network as needed with the AN-2000 IB modular, high-density architecture. The product scales gracefully from 24 to 2,424 subscribers per system. All subscribers can be provisioned easily through dynamic provisioning.  Open Interface Interoperate with third-party gear and networks as needed; the AN-2000 IB solution uses an open architecture interface and supports multiple xDSL standards.  New Revenue-Generating Services Support IP multicasting for video and value-added services, and deliver always-on broadband data and video, high-speed Internet access, VPNs, distance learning, and enterprise networking to business and residential customers.  High-Speed Remote Access Provide the satellite-to-headquarters connectivity many of your business customers need with an economical AN-2000 IB high-speed LAN-interface solution that delivers higher network speeds than leased-line or dial-up. In recent years, worldwide DSL deployment has experienced significant growth due to increasing customer demand. Today, the DSL access network is evolving from the traditional ATM-based access technology to the more cost effective IP-based access technology. With traditional end-to-end ATM-based DSL access networks, many service providers experienced problems in provisioning and maintenance, equipment cost, and network scalability. When the subscriber base grows to hundreds of thousands and millions of subscribers, network scalability becomes a critical issue to many service providers. In the global DSL broadband market, UTStarcom is a leading provider of DSLAM equipment and the leading provider of IP-based DSL access solutions. UTStarcom‘s AN-2000 IP-DSLAM product not only offers advanced Ipbased solutions, but also provides interfaces to traditional ATM-based backbone networks to allow service providers to gradually transition from ATM to IP. The AN-2000 IP-DSLAM gives service providers the ability to offer true IP-based DSL services and to better utilize each network component to maximize return on investment. This white paper describes the advantages of the unique IP solutions offered by the AN-2000 IP-DSLAM with the IP Services Module (ISM) and the benefits of using the AN- 2000 rather than traditional ATM-based DSLAMs. The AN-2000 IP-DSLAM consists of three types of service modules:-  IP Concentration Module (ICM)  IP Services Module (ISM)  DSL Line Card Module. IP Services Module (ISM) The ISM is an IP application blade that enables the service provider to offer advanced IP services to DSL subscribers. It brings advanced bridging and routing functions, layer-two and layer-three QoS features, and subscriber management capabilities to the AN-2000 IP- DSLAM. Most importantly, the unique features offered by the ISM bring excellent scalability to the IP access network. ISM also provides interfaces to traditional ATM-based access network to allow service providers to gradually migrate from ATM to IP. Advanced IP Features BRIDGING The ISM supports full-featured bridging functions at layer 2. It supports both 802.1d and 802.1q bridging with up to 4095 bridge groups. Additionally, the ISM supports VLAN JTO Ph-II Version 3.0 Aug 2021 Page 70 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE aggregation where subscriber traffic carried on different VLANs can be merged onto a single VLAN. ROUTING At layer three, the ISM supports static, dynamic (RIP and OSPF), and policy-based routing. Policy-based routing is implemented through multiple Virtual Routing Domains (VRDs). Each VRD is a separate routing context in which the routing decision for a subscriber packet is based on the routing entries of the VRD that the subscriber belongs to. The ISM also supports inter-VLAN routing. Access Control and Session Tracking The ISM has a rich set of subscriber authentication and session tracking capabilities. The subscriber is authenticated either through a local user database on the ISM or through a RADIUS server. At layer two, ISM can apply access control based on the subscriber‘s MAC address. The ISM supports IEEE 802.1x port-based access control and RADIUS proxy for IEEE 802.1x based wireless access points. With these capabilities, the AN-2000 IP-DSLAM can be deployed to offer wireless hotspot services in conference rooms, coffee shops, hotels, airports, and elsewhere. Layer-three access controls are more appropriate when service providers find it difficult to control subscriber MAC addresses. The ISM supports PPP Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) for PPP subscribers, and IP address authentication for static IP subscribers. Layer-three access controls are difficult to apply in cases where DHCP is utilized because IP addresses are typically shared among DHCP subscribers. The ISM‘s web authentication mechanism solves this problem by forcing the user to provide their login and password through a security portal after receiving an IP address via DHCP. In addition, when desired by the service provider, the ISM also provides the capability to track and limit the number of concurrent subscriber sessions. The ISM keeps track of each admitted subscriber session and collects usage information such as subscriber MAC addresses, IP addresses, DHCP lease times, and PPPoA/PPPoE sessions. It also maintains a set of counters that tracks each subscriber‘s byte counts and online times. The statistics collected by ISM can be accessed via SNMP and RADIUS accounting. The ISM also supports sophisticated packet filters via the Access Control List (ACL) function, allowing the service provider to block unauthorized subscriber applications. SUBSCRIBER ISOLATION Subscriber isolation is one of the capabilities most frequently requested by service providers. To support security and billing, they typically require that the DSLAM prevent cross-talk between DSL subscribers and forward all subscriber traffic to the aggregation router. The ISM can provide subscriber isolation at both layer two and layer three. When layer-two subscriber isolation is enforced in the AN-2000 IP-DSLAM, two subscribers cannot communicate with each other without going through the upstream aggregation router, even if they are in the same bridge group. At layer three, VRDs can also provide subscriber JTO Ph-II Version 3.0 Aug 2021 Page 71 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE isolation. Subscribers belonging to different VRDs are prohibited from communicating with each other within the DSLAM. In addition, similar to layer two subscriber isolation, the ISM can enforce strict isolation between two (or more) subscribers belonging to the same VRD. When strict subscriber isolation is enforced, two subscribers in the same VRD can only communicate with each other through the upstream aggregation router. QOS The AN-2000 IP-DSLAM supports both layer-two and layer-three packet classification, priority queuing, and perflow traffic policing. IP VIRTUAL PRIVATE NETWORKING A Virtual Private Network (VPN) is a private network constructed using a public network infrastructure such as the global Internet. The fundamental motivation for using VPNs lies in the economics of communications. A collection of virtual networks implemented on a common public network infrastructure is cheaper to operate than an equivalent collection of smaller physically discrete communications infrastructures, each servicing a single network client. VPNs must enforce traffic segregation such that the information carried within a VPN is restricted to a defined set of entities, and third parties cannot gain access. VPNs also allow for private addressing and routing across the public Internet. It is important to mention that Service Level Agreements (SLAs) have become a key aspect of VPN deployments. SLAs are negotiated contracts between service providers and their subscribers. SLAs specify the QoS attributes of each VPN—packet loss, jitter, latency, throughput and more. The AN-2000 IP-DSLAM supports both layer 2 (link-layer) and layer 3 (network-layer) IP VPNs. LINK-LAYER VPN At the link layer, the AN-2000 IP-DSLAM supports VLAN-based VPNs. The AN- 2000 IP-DSLAM enforces traffic segregation by selectively applying VLAN tags to groups of DSL subscribers that belong to the same VPN. VLAN tags are applied when subscriber traffic enters the DSLAM. Priority queuing and traffic policing is applied to each VLAN to ensure conformance to the SLA provided to the VPN subscribers. JTO Ph-II Version 3.0 Aug 2021 Page 72 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE Figure 39: Link-layer VPN NETWORK-LAYER VPN Network-layer VPNs are most commonly implemented through tunneling techniques. The ISM supports three types of network-layer VPNs: L2TP, IP-IP, and IP-GRE. Subscriber traffic is transported by VPN tunnels when it leaves the DSLAM. NETWORK ARCHITECTURE The AN-2000 IP-DSLAM chassis consists of two controller slots and 16 network/line module slots for user data traffic. These slots can contain three types of modules: Internet Concentration Modules (ICM), IP Service Modules (ISM) and Line Card Modules (L/C). The ICM provides Ethernet switching capability for 24 Fast Ethernet interfaces and two Gigabit Ethernet interfaces. It aggregates all upstream traffic from DSL line cards (Fast Ethernet) to the WAN uplink (Gigabit Ethernet) and segregates the downstream traffic from the WAN to DSL line cards. The ISM provides B-RAS functionality and WAN uplink through its Ethernet and ATM interfaces. The L/C comprises 24 DSL ports for DSL connections to subscriber CPE. Multiple types of ADSL and SHDSL L/C modules are supported to provide different line standards and line rates for various market needs. Figure depicts the network architecture enabled by the AN-2000 IP-DSLAM system. This system is capable of supporting up to 384 DSL ports per chassis with mixed ADSL and SHDSL line cards. DSL subscribers are served with SLA-specific bandwidth and QoS. For example, subscribers who want to use data, voice and video services over the same DSL connection can subscribe a Triple Play service that provides the required bandwidth and QoS. Other subscribers may use low-bandwidth connections with best-effort QoS. The flexible QoS capabilities of the AN-2000 IP-DSLAM enable simultaneous support of different types of customizable services within a single system. On the WAN side, the IP-DSLAM may be configured for ATM, Ethernet or both. The AN-2000 IP-DSLAM supports the following configurations: JTO Ph-II Version 3.0 Aug 2021 Page 73 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE  L/C modules, ICM module(s), and ISM module(s) with ATM WAN uplink  L/C modules, ICM module(s) and ISM module(s) with Gigabit Ethernet WAN uplink  L/C modules and ICM module(s) with Gigabit Ethernet Figure 40: Connectivity of DSLAM Key Benefits Unlimited scalability Build out the network as needed with the AN.2000 IB modular, high-density architecture. The product scales gracefully from 24 to 2,424 subscribers per system. All subscribers can be provisioned easily through dynamic provisioning. Open interface Interoperates with third-party gear and networks as needed; the AN.2000 IB solution uses an open architecture interface and supports multiple ADSL standards. New revenue generating services Supports IP multicasting for video and value-added services, and deliver always-on broadband data and video, high-speed Internet access, VPNs, distance learning, and enterprise networking to business and residential customers. High-speed remote access Provides the satellite-to-headquarters connectivity many of your business customers need with an economical AN.2000 IB high-speed LAN. interface solution that delivers higher network speeds than leased-line or dial-up solutions. The AN.2000 IBTM DSLAM is a carrier class, high- performance IP-based DSLAM access network solution that delivers always-on, high-speed Internet data and video services to subscribers over a wireline network. The AN.2000 IB interfaces directly with the IP MAN (metropolitan area network) with a WAN interface to deliver broadband data services cost-effectively and eliminate the need for costly ATM infrastructure. It enables service providers to protect their investment and strengthen their customer relationships by offering their customers a wide variety of creative interactive services and applications. JTO Ph-II Version 3.0 Aug 2021 Page 74 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE This low-cost, high-performance IP-based solution seamlessly migrates the access network from narrowband voice-only services to full broadband capabilities. MAJOR FEATURES: 7.14.1.a.1.1 Next Generation Solution  IP Based solution suitable for migration to full IP Networks  Low cost and feature rich  High performance - throughputs in the range of 4 Mbps per subscriber 7.14.1.a.1.2 Modular High Density Architecture  Modular design: Scalable from 24 to 2,424 subscriber lines per rack by chaining together up to 6 sub-racks per rack (reduced to 3 when equipped with 3 POTS splitter sub- racks in the same rack).  High density: Up to 408 ports per sub-rack (17 modules with 24 ports per module). Standard Interoperable Interfaces  Fast Ethernet as the WAN Interface  Supports multiple ADSL standards (ITU-T G.992.1, G.992.2 and ANSI T1.413-1998) via software configuration  Interoperable with third party xDSL CPE.s 7.14.1.a.1.3 Highly Reliable  High Availability: Comprehensive redundancy through built-in, 1:1 protection for common modules, and power supply  All plug in modules are hot swappable  Supports on-line diagnostics and measurements 7.14.1.a.1.4 Supports Advanced Features  Spanning Tree Algorithm, avoiding bridging loop  User traffic isolation between ADSL ports  VLAN Tagging  IGMP snooping  IP packet filtering VERSATILE NETWORK MANAGEMENT SYSTEM Centralized Client server based Network Management to manage the entire network from one or more locations. Netman performs remote administration, configuration management, fault and performance management, software download and system diagnostics, and subscriber loop tests. Some important Netman capabilities include User- Friendly, GUI-based system supports any size of access network. It supports virtual configuration includes geographical maps in the backdrop, and provides a snapshot of equipment via the Real Equipment View Expandable / collapsible hierarchical alarms display for easy, accurate diagnostics Alarm filtering, monitoring with prioritized display and acknowledgement of alarms 7.14.1.a.1.5 TYPICAL APPLICATIONS (Broadband Access & Subscriber Aggregation) JTO Ph-II Version 3.0 Aug 2021 Page 75 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE AN2000 IB, located in central office, serves as an ADSL access multiplexer. The ADSL service offers both voice and data access for the residential and small business subscribers. The voice traffic will be directed to the Local Exchange (LE), and data traffic will enter the AN2000 IB. The data traffic from the customer premises is converted to IP and aggregated inside the AN2000IB and fed into an IP- MAN and ultimately to the Internet. LAN EXTENSION CONCENTRATOR For large enterprise network, the UTStarcom AN2000 IB can serve as a high performance, cost effective LAN extension concentrator, providing a simple way to connect satellite facilities using the existing copper line. An AN2000 IB located near the corporate center will interconnect with the AN2000IB at remote sites in a virtual LAN configuration. When compared to the lease line or dialup solution, this approach is more economical and could present much higher bandwidth. MULTICAST VIDEO OVER XDSL Multicast IP video content delivered via ADSL enables more breadth of service than simple Internet access. As ADSL is a dedicated medium (as opposed to cable TV), it is possible to enable more channels with ADSL than with cable. The AN2000 IB to the individual subscribers distributes the content from the headend of a Multicast video network. Traditional Ethernet bridges and switches forward packets with broadcast or multicast destination to each of the interfaces. The AN 2000 IB supports IGMP snooping whereby it directs the multicast traffic only to the ports to which it is designated thereby performing video distribution efficiently JTO Ph-II Version 3.0 Aug 2021 Page 76 of 103 For Restricted Circulation JTO Ph-II (DNIT) OCLAN DSLAM & CPE SYSTEM SPECIFICATIONS  System capacity Scalable from 24 to 2,424 lines  Network interface 10/100 Base T, GbE  Advanced features  RFC2684 multiprotocol over AAL5  Spanning tree algorithm  Statistics monitoring on Ethernet and on bridge interface  User traffic isolation between ADSL ports  IGMP snooping  VLAN Tagging  IP packet filtering  MAC address based access control  Support for RFC 2684  Supports the encapsulation of bridged  Ethernet PDU over AAL5 using RFC 2684.  Both VC multiplexing and/or LLC multiplexing is supported.  Supports transparent bridging, per IEEE 802.1d, between the WAN port and any ADSL ports configured for RFC 1483 bridging encapsulation Can be configured to allow packet exchange between bridged ports on the module.  Allows downstream device to obtain IP address via DHCP.  Management interface 10BaseT, RS-232/V.24  Management platform Client/server or PC with Windows 95/98/NT  Deployment options Open racks, indoor cabinets  Powering -36 to -60 VDC, 100 to 230 V AC for Remote DSLAM.s  Environment -25° to +50°C with