MileGate - IP-based Multi-Service Access Platform

IP-based Multi-Service Access PlatformMileGate is a modern IP-MSAN that can support you in expanding your network so that it is fit for the future. With its extensive multiservice characteristics, MileGate combines carrier grade broadband access, telephony and data interfaces in one single, compact Next-Generation Access platform. MileGate has been developed for the Next-Generation Network (NGN), but it also supports legacy technologies. This feature makes MileGate an advanced IP-MSAN, enabling seamless migration of services and providing them via copper and optical fibre for FTTx applications. MileGate supports TV and telephony services via the Internet protocol (IPTV and VoIP) with different standards and a variety of quality control measures at data and at module level. By using MileGate you can migrate whole or parts of your telecommunications network to the NGN. Expand your range of services to include new, high quality Triple Play and broadband business services, and continue to provide the range of traditional telephony and data services at the same time, without having to rely on two systems. Thanks to its robust design, MileGate is perfect for usage in harsh ambient conditions. The IP-MSAN can be used in street cabinets without having to compromise on reliable operation. By applying MileGate’s migration concept you can minimise initial costs on the one hand, because you do not have to convert the entire network at once to Ethernet. On the other hand you can generate additional revenue, thanks to new services like IPTV.

MileGate supports you in gradual or total conversion of your telecommunication network from TDM-based data to IP. MileGate achieves this flexibility in the migration process due to its unique hybrid backplane. This enables MileGate to offer pure TDM-services in addition to Ethernet services – not just for the customer, but also for network access. Integrated gateways enable the transfer of the data. This level of flexibility means you can complete perfect transmission between the different technologies. As a network operator, you can determine the speed of the conversion yourself. For backbone uplink Gigabit Ethernet as well as traditional STM-4/1 interfaces can be used. For voice services, with the V5.x interface and VoIP media gateways (SIP/H.248) for POTS and ISDN, you have all the standards required for the transition of TDM-voice services to VoIP. For data services, there are different TDM and Ethernet interfaces to the subscriber and network, as well as a CESoP gateway (Circuit Emulation Services over Packet Networks). The extensive support of NGN and traditional services means you can migrate the telephony and other data wholly or partly to IP-based services. Therefore, MileGate allows you to concentrate many different – and vital – transmission systems, e.g. DSLAM and DLC (Digital Loop Carrier), in a single IP-based access platform. This versatility and the central management system overarching all services help you achieve maximum synergy effects in operation of your telecommunication network.

MileGate is the ideal access platform for telecommunication networks that are undergoing changes. Regardless of whether you are extending a telecommunication network out at the greenfield, migrating parts, or integrating a lot of services on one access point – MileGate can offer you a solution. With a variety of DSL technologies, MileGate provides the right interface for both Triple Play applications and for business customer access. With MileGate, flexible network topologies can be set up by providing optical and electrical Ethernet interfaces. You can provide total Ethernet technology, both to the backbone and to the customer.

Due to the integrated management system, you have an overview of the quality of the services and uninterrupted operation at all times. From the centre you have your telecommunications network under control. You can introduce a vast number of new services in the whole network at the touch of a button.

Flexible Installation for Milegate

MileGate - IP-based Multi-Service Access Platform Highlights:

Thanks to its compact design, different subracks (2500, 2300) and a Micro-DSLAM, MileGate supports a variety of FTTx (Fibre-to-the-x) network architectures and gives you the chance to offer your customers broadband services with up to 1000 Mbps.

  • MileGate 2500 is perfect for use in central and outdoor housing. It offers maximum multi-service flexibility.
  • MileGate 2300 provides the same multiservice flexibility as 2500 in a smaller 4 HU subrack.
  • MileGate 2011 is a Micro-DSLAM for the provisioning of high-speed VDSL2 in multi-tenant buildings.

MileGate offers you a wide range of interfaces that you can use depending on the application, including:

  • ADSL/ADSL2/ADSL2plus
  • VDSL2 (EFM)
  • SHDSL.bis with pair bonding
  • COMBO solution (POTS and ADSL2plus)
  • POTS and ISDN
  • Optical Ethernet (100BaseFX/BX or GbE)
  • Electrical Ethernet (100BaseT) with PoE+
  • Legacy data interfaces (E1, V.35, V.36, X.21)
  • STM-1

MileGate - Multi Service Access Family:

  • Next Generation MSAN
  • IP & TDM architecture
  • Same form factor as UMUX
  • Hardened for indoor and outdoor use
  • MG2500 – 21 service slots
  • MG2300 – 8 service slots
  • MG2011 – Fixed 8 VDSL2 interfaces (Indoor Only)
  • Common cards for both units
  • -48V DC distributed power
  • Next Generation and Legacy Service Support
    POTS, ISDN, VoIP (H248 &SIP),
    Optical Ethernet
    E&M VF, DATA Card, Router, Exchange Voice, STM-1/4/16, Electrical Ethernet
  • Managed by UNEM & UCST

Main Features:

System design

  • 21 or 8 slots per chassis with 1 Gbps and 10 Gbps per slot
  • Full core redundancy
  • Transmission capabilities over Ethernet, at n x 1 Gbps and n x 10 Gbps speeds
  • Hybrid backplane with
  • 10GbE-Star
  • Native TDM transmission
  • Flow based traffic management

VoIP gateway

  • Integrated VoIP media gateway
  • POTS and ADSL2plus combo solution
  • H.248/MEGACO or SIP signalling protocol

Ethernet and DSL

  • Up to 960 ADSL2plus ports per subrack
  • Up to 640 VDSL2 ports per subrack
  • Up to 640 SHDSL (ATM or EFM) ports per subrack
  • Up to 480 optical Ethernet per subrack
  • Multicast capability for video distribution
  • According to Broadband Forum (TR-101)

Network management support

  • UNEM
  • Higher layer NMS support via
  • CLI
  • XML
  • SNMP

Example Applications

Triple Play and more – All via one Subscriber Line



Triple Play

Triple Play, i.e. the service mix of voice, highspeed Internet and TV via the Internet (IPTV), will become more and more important for network operators in the future. MileGate supports you in providing IPTV in a two-stage multicasting concept. With multicasting, data streams are only multiplied at points where they can be called up by several users – this saves bandwidth in the backbone. With optical fi bre connections a CATV signal can be transmitted as an option. So you can provide a full TV offering without the need to build up an own IPTV infrastructure immediately.

Fibre Optics to any Access Point – FTTx

Fibre Optics to any Access Point – FTTx

In addition to voice migration, providing legacy TDM data services combined with NGN services is another challenge when converting to an All-IP network. Many of your customers have CPEs that have no Ethernet interface, but continue to exchange data via E1 or X/V interfaces (X.21, V.35, V.36). To guarantee perfect transmission, the access platform should be able to transfer the data both by TDM uplink and via the Ethernet to the backbone. Thanks to its hybrid backplane, MileGate can provide TDM and Ethernet data services at the same time. With the IP-MSAN you can transfer the traditional data via E1 interfaces – nothing changes. If on the other hand you want to transfer the data via Ethernet, Ethernet packets have to be created from the TDM data. For this case, MileGate provides a CESoP unit to implement this. However, conversion and transmission in a normal Ethernet data stream is not sufficient,but the previous TDM data has to be transmitted constantly at high priority to guarantee the units function perfectly. To do so, MileGate provides different methods to ensure high quality transmission and sophisticated timing recovery via an Ethernet backbone.

MileGate supports all FTTx network architectures perfectly and therefore gives you maximum freedom in structuring your network.

  • FTTE (Fibre-to-the-Exchange) The exchange is connected via fi bre optics with the backbone. From here on, copper
    wires are used as before.
  • FTTC (Fibre-to-the-Curb) Moving the IP-MSAN to a street cabinet near to the customer and connecting the customer
    via ADSL2plus or VDSL2.
  • FTTB (Fibre-to-the-Building) Installing a Micro-DSLAM in the equipment room in a building and connecting the subscribers via VDSL2.
  • FTTH (Fibre-to-the-Home) Connecting all the customers via optical Ethernet interfaces from a centre, or via an
    access point in a street cabinet.

For FTTB/FTTH connections MileGate offers an optional CATV overlay. With it you can transmit a traditional cable TV signal in parallel to the IP data to every customer.

High-Speed DSL Internet Access

IPTV and Video on Demand


Voice over VoIP Subscriber Media Gateway

Business Services

SHDSL Business Access over Copper

Ethernet / Ethernet in the First Mile (EFM)

FTTH with Cable-TV Overlay

POTS/ADSL2plus Solution via V5.2 Links (E1/G.703)

Leased Lines (SHDSL TDM)


System architecture: Fully modular open architecture, any service, any slot
Hybrid backplane for Ethernet and native TDM services
Protection: 1:1 equipment protection for core unit and media gateway
RSTP/STP and 802.3ad link aggregation on Gigabit Ethernet uplink
IP DSLAM functionality: According to Broadband Forum TR-101
IPoE, PPPoE and PPPoA via DSL link
Line identification and traceability
(PPPoE intermedia agent, DHCP option 82)
ATM termination, ATM to Ethernet interworking
802.1Q VLAN, 802.1ad provider bridge (Q-in-Q)
802.1p CoS
DSCP lookup and mapping
Enhanced traffi c management
Substantial multicast functionality, IGMPv2/IGMPv3
(e.g. IGMPv3 snooping with message suppression and proxy reporting)
Access control lists
IEEE 802.1ag Ethernet OAM
Media gateway: H.248/MEGACO control protocol and SIP for POTS/ISDN
G.711 and G.729 A/B codec, echo cancellation, silence suppression,
Comfort noise generation, DSCP QoS
V5.2 interface: Protocol converter for POTS/ISDN, Uplink via E1 interface
Circuit emulation gateway: SAToP functionality for 8 E1 circuits
Management interfaces: USB interface for local confi guration
10/100/1000BaseT interface for management

Security Functions and Services
MAC address translation: Protection against MAC address spoofi ng and fl oating
VLAN: VLAN seperation, VLAN tunneling
1:1 or n:1 modes: VLAN cross-connect or VLAN bridging
PLS (Private Line Service): Support of Layer 2 Control Protocols (L2CP)
TLS: Transparent LAN Service via VLANs according to TR-101

Interfaces – Uplink, Cascading
1 Gbps and 10 Gbps Ethernet: 2 x optical + 3 x electrical
SDH:  2 x STM-4/1 (optical), 2 x STM-1 (optical/electrical), 4 x 100/1000BaseT

Interfaces – User Side Number of Ports per Card
32 or 48
VDSL2 (EFM): 32
SHDSL (ATM or EFM): 32
POTS (with/whithout on-board ADSL splitter): 32 or 48
ISDN (2B1Q or 4B3T): 16
E1 (G.703): 8
Ethernet (optical, electrical, electrical with PoE+): 8
Ethernet (optical, optional with CATV-overlay): 24

Number of slots on MileGate 2500
= 21
Number of slots on Milegate 2300 = 8
Bandwidth per slot: 1 Gbps and 10 Gbps protected (1:1) backplane access

Dimensions (w x d x h) and Weights
MileGate 2500
19“ subrack with front cover: 482.6 x 286 x 308.2 mm, 7430 g
Installation: 19“ and ETSI mounting practice
Milegate 2300
19“ subrack with front cover: 482.6 x 283 x 177 mm, 5.050 g

EMC, Safety and Powering
Product family standard: Public telecommunication network equipment – EN 300 386 V1.3.2
Safety: IEC/EN 60950-1
Input voltage nominal (min/max): -48/-60 V DC (40.5 V DC ... 72 V DC)

Operation Environment
Temperature range system (extended): -25 °C ... +60 °C
Humidity: According to class 3.2, up to 95 %, non-condensing