RAD Mobile Backhaul Solution Guide WP 20130715

Solution Guide

Mobile Backhaul Overview and Solution Guide

This paper presents a brief overview of today’s mobile backhaul market, outlines the unique challenges facing mobile operators and backhaul transport providers, and suggests strategies for improving network performance and coverage. Key emphasis is on the OAM, resiliency, Quality of Service (QoS) and timing technologies required for cost-efficient backhaul of 2G/3G/4G/LTE and small cells traffic.

This paper presents a brief overview of today’s mobile backhaul market, outlines the unique challenges facing mobile operators and backhaul transport providers, and suggests strategies for improving network performance and coverage. Key emphasis is on the OAM, resiliency, Quality of Service (QoS) and timing technologies required for cost-efficient backhaul of 2G/3G/4G/LTE and small cells traffic.


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© 2013 RAD Data Communications Ltd

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Exponential growth in data traffic, coupled with flat revenues, has driven mobile backhaul from traditional T1/E1 to Ethernet for scalable bandwidth and improved cost structure. Users with smart phones, tablets, laptops, M2M devices, etc. are accessing their applications and content directly from the cloud, and in turn, mobile operators have essentially become providers of fast pipes. These mobile operators try to differentiate themselves by: (faster speeds, lower latency, less packet loss)

•

(fewer dead spots, extending 3G/4G to rural areas, small cells)

•

such as network Multiple Input, Multiple Output (MIMO) and

•

Location Based Service (LBS)

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RAD’s mobile backhaul solution helps maximize network performance and coverage. It is ideal for mobile operators and wholesale providers looking to build a Carrier Ethernet 2.0 (CE 2.0)-certified access/aggregation transport network that supports all mobile g enerations, including 4G/LTE and small cells. It features: •

Powerful service management system, portal and hardware-based OAM tools that reduce support costs with per-EVC.CoS circuit validation, fault management and accurate network performance monitoring

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Multi-CoS and H-QoS support that reduces CAPEX by more efficiently utilizing bandwidth and avoiding over-provisioning

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Packet and network synchronization tools such as Sync-E and 1588 PTP Grandmaster/slave for advanced LTE services, in addition to one-way delay measurements

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Integrated TDM over Ethernet and Ethernet over TDM/SONET/xDSL interface options for simpler 2G, 3G, 4G/LTE migration

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Comprehensive access/aggregation transport with resiliency capabilities, such as support for G.8032v2 with sub-50ms failover to reduce SLA risks

This paper presents an overview of today’s mobile backhaul market, illustrates the unique challenges facing mobile operators and backhaul transport providers, and describes strategies for commercially viable transport of multi-generation mobile technologies. In particular, it stresses the performance criteria that mobile operators expect if they are to trust their backhaul network to third parties – focusing on the business and technical challenges that transport providers face as their networks evolve to Carrier Ethernet 2.0-certified Ethernet in support of traffic from mobile operators.


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A number of industry trends prevail in the mobile backhaul space. Most significantly, these include:

2.1

Widespread Adoption of Cloud-Based Services

The widespread adoption of, and dependence on, cloud-based services such as iCloud, YouTube and Dropbox has pushed users to expect access to highspeed data anywhere and anytime. Such reliance on the cloud, combined with the faster speeds enabled by the rollout of LTE technology, has resulted in soaring demand for bandwidth and decline in revenue-per-bit. Wireless operators have requested Ethernet backhaul services to scale their networks and strengthen their margins. Wholesale backhaul providers have responded by migrating from TDM to Carrier Ethernet to offer scalable networks with the reliability of SONET/SDH – but at the cost of Ethernet.

2.2 TDM to Carrier Ethernet Migration Mobile operators originally used expensive leased lines to backhaul traffic in mobile networks. As this graph illustrates, 3G/4G bandwidth requirements have increased exponentially with time, but revenues have not. As a result, Ethernet has become the preferred solution due to its scalability and significantly lower cost-per-bit. According to Infonetics Research, Inc., a cumulative $43.6 billion is expected to be spent on macrocell mobile backhaul equipment from 2012 to 2016. Upwards of 94% of that spending will be on IP/Ethernet gear 1.

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Source: Infonetics Research, Macrocell Mobile Backhaul Equipment and Services Report, 2012

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2.3 Carrier Ethernet to MEF CE 2.0 Mobile Backhaul Most wholesale providers have taken the first step of TDM to Carrier Ethernet migration, but with a simplistic single Class of Service (CoS) approach in which all traffic is treated the same. This is proving to be insufficient since mobile applications are subject to extreme bursts of traffic with a wide variety of QoS requirements. It is fast becoming critical for mobile operators and their access provider partners to accommodate these traffic peaks or face the high cost of customer dissatisfaction. Continuing to treat all traffic the same would require a massive, costly and unnecessary network overbuild, without an acc ompanying revenue model to sustain the cost. It’s effectively a recipe for going out of business. The Metro Ethernet Forum (MEF) CE 2.0 recommends multi-CoS as the solution to this major industry problem and has published a Best Practices paper providing implementation guidelines. RAD’s ETX2xxA NIDs and ETX-5300A aggregation platform are MEF-certified to comply with CE 2.0 definitions including: •

to maximize access providers’ profitability by leveraging Ethernet traffic management tools that ensure network integrity without costly over-building of networks. This is also expected to save mobile operators at least 25% in backhaul costs. Network performance and end-user QoE can also be improved by reducing queue lengths (CBS) for high priority, delay and jitter sensitive traffic and increasing CBS for bursty, low priority traffic. to reduce service c osts with circuit validation, fault and performance

•

management. •

service type t o accelerate delivery of off-net UNI-to-ENNI services. E-Access standardizes first/last mile Ethernet access services, which benefits wholesale providers. It also benefits retail service providers by minimizing the quantity of custom interconnect agreements required.


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2.4 SONET/SDH to Carrier Ethernet Migration, Including GbE/10GbE Rings Based on G.8032v2 Traditional wholesale backhaul networks were built using SONET/SDH rings. These networks supported both TDM and stringent Ethernet over SONET (EoS) requirements. However, SONET/SDH does not scale efficiently and does not provide sufficient bandwidth, especially as individual 3G operators' access speeds increase from 50 Mbps to 150 Mbps per site, and eventually up to 300 Mbps with 4G/LTE. Carrier Ethernet equipment supporting GbE/10GbE rings using the G.8032v2 standard is fast eliminating the need to install and maintain legacy SONET/SDH networks. The G.8032v2 standard supports up to 16 rings with 32 nodes per ring and sub-50ms failover. Not only are Carrier Ethernet networks at least four times more cost efficient than SONET/SDH in terms of CapEx, but they also provide excellent bandwidth scalability, flow service management and investment protection. The combination of G.8032v2 with pseudowire/circuit emulation capabilities has now become the best long-term solution, especially as SONET/SDH products reach End-Of-Life (EOL) without replacement as a result of discontinued components and retired R&D teams.

2.5 Synchronization Requirements Becoming More Stringent to Support LTEAdvanced 2G, 3G and 4G/LTE all require synchronization technology. One of mobile backhaul’s major challenges involves maintaining synchronization in packet-only environments that are asynchronous by nature with Packet Delay Variation (PDV) and packet loss. As far as mobile operators are concerned, the backhaul network must deliver accurate frequency, and sometimes Time-Of-Day (TOD), reference to the base stations. The frequency accuracy should meet the famous +/-16 PPB limits and is mainly used to derive the RF transmission frequency of the base station. Hence, violation of these limits may have implications on the mobile network’s ability to support seamless handover. TOD is required by some cellular technologies (e.g. UMTS-TDD and CDMA) to guard against inter-cell interference from neighboring base stations. The exact accuracy limit depends on the specific technology, with t ypical values ranging from 1 to a few microseconds.

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4G/LTE-advanced, in particular, requires even stricter clock distribution accuracy to all base stations to ensure support for new features like network MIMO and location based services (LBS). This includes frequency as well as TOD synchronization, not only for time-division duplex (TDD) networks, but also for those utilizing frequency-division duplex (FDD). Required TOD accuracy for such applications is in the order of a few hundred nanoseconds! Synchronization requirements for LTE-Advanced are still under study by 3GPP, but the trend is towards the following two LTE time distribution strategies: •

GPS installation at every tower with Sync-E backup

•

Distributed BC/GM with GPS/PTP-GM installation at i ntermediate network POPs with Sync-E backup

While these may vary to some extent, the primary and most common mobile backhaul requirements demanded today include: •

The wholesaler must provide high availability, low latency E-Line service

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Service constructed of end-to-end EVCs from the cell sites to MTSO where it is aggregated to GbE/10GbE

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EVCs ordered for 4G deployments should be able to scale up to GE

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Service Level Agreement (SLA) must include:

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Latency from NID to NID = max of 5 ms (one-way delay)

- Jitter = max of +/- 1 ms -

Frame Error Rate (FER) = 1 x 10 -6 (one frame error per million)

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No more than two sites per unprotected lateral

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Availability = 99.995% uptime

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Response time = 15 minutes


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•

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Time to repair = 4 hours from initial call

Wholesale services must also include:

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Circuit validation using RFC-2544/Y.1564 to complete service ordered

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Performance monitoring and reporting for services ordered

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Maintenance and troubleshooting

Demarcation device must include +24 VDC or -48 VDC with redundant field replaceable power supplies

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Service must be transparent (VLAN IDs, priorities, MC/BC, L3 protocols)

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Large CBS to accommodate LTE microbursts (scale to at least 313KB)

4.1 Service Assured Access: Increasing Backhaul Revenue While Reducing TCO refers to a comprehensive set of tools that make it easier to plan, deploy, provision, and maintain Carrier Ethernet services. RAD offers the industry’s best that can be implemented in a variety of deployment mode scenarios over various bearer circuits: fiber, DSL and PDH, when building CE 2.0-certified access networks with outstanding management capabilities. RAD’s Service Assured Access solution helps increase service provider revenue while lowering total cost of ownership (TCO) throughout the service lifecycle.

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4.2 Enhanced Services RAD’s ETX family of mobile demarcation devices has been designed to address additional mobile demarcation requirements, such as: 1. RAD’s ETX mobile demarcation devices are environmentally hardened with redundant, field replaceable power supplies. On the aggregation end, the ETX-5300A provides scalable GbE/10GbE interfaces with full card redundancy for in-service repairs and in-service software upgrades. Link, path and ring protection are also supported with fast failure restoration due to hardware OAM (sub50ms).


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RAD’s Carrier Ethernet devices support TDM circuit emulation, facilitating a smooth transition from 2G/3G mobile networks to new packet switched networks, while preserving equipment and infrastructure investments for as long as it is economically feasible.

Most backhaul networks cannot support the stringent frequency and time/phase accuracy requirements of LTE-TDD and LTEAdvanced. This problem is becoming more acute as mobile networks increase capacity and coverage by adding more small cells. GPS is the only practical, ubiquitous time dissemination technology available today, but deploying it at every macro and small cell is an expensive solution. Plus, GPS is relatively susceptible to interference (unintentional) and jamming (intentional), and may not be possible when “sky view” is restricted. RAD addresses this challenge by incorporating Sync-E and IEEE 1588 Precision Time Protocol Grandmaster (PTP-GM) capabilities directly into the low cost ETX demarcation devices that are located at the last aggregation point (network edge / hub sites). This “Distributed Grandmasters” approach eliminates backhaul network timing issues caused by access / wholesale networks with high packet delay variation or asymmetry.

4.3 CE 2.0 Certification CE 2.0 introduces three powerful, standardized features:

1. Multi-CoS leverages traffic management tools like policing, shaping and prioritizing to ensure better Quality of Service (QoS) and performance, yielding more efficient bandwidth utilization over a single pipe. This feature is becoming critical for mobile operators and their wholesale providers in order to support exponential mobile traffic growth without expensive network infrastructure over-build.

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2. Interconnect helps integrating autonomous Carrier Ethernet networks by accelerating the delivery of off-net UNI-to-ENNI services. This enables the introduction of E-Access, a whole new service that will stimulate business between wholesalers and service providers. 3. Manageability institutes end-to-end service and performance monitoring, circuit validation and fault isolation, and reduces OpEx by minimizing the need for specially-trained field technicians to be available on a 24/7 basis. RAD’s ETX-5300A Ethernet Service Aggregation Platform, ETX-205A Advanced Carrier Ethernet/Mobile Demarcation Device and ETX-203AX Carrier Ethernet Demarcation Device are all among the first devices in the industry to earn CE 2.0 certification and support all four CE 2.0 service types: E-Line, E-Tree, E-LAN and E-Access.

5.1 CE 2.0 Certified Backhaul with SLA Assurance for Macro/Small Cells In order to meet the mobile backhaul requirements described earlier, the wholesale backhaul provider must place demarcation devices at the cell sites and switching center (MTSO). These demarcation devices provide the circuit validation, performance monitoring, traffic management and diagnostic tools critical to comply with the service level agreement (SLA). To future proof the backhaul solution, these demarcation devices should be CE 2.0 certified and specifically support: •

Advanced traffic management tools that support Multi-CoS and LTE microbursts to maximize profit by avoiding costly network over-builds.

•

Hardware-based OAM that supports service manageability features such as accurate circuit validation and fault and performance management to reduce service costs and defend SLAs.


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•

E-NNI support according to MEF 26/28 that allows the wholesaler to offer standardized EAccess interconnect service to the mobile or regional carrier and to ensure coordinated service handoff, QoS, OAM connectivity and redundancy.

1. Due to space/power constraints at small cells, RAD offers a Miniature NID (

) in the form

of a SFP sleeve that can plug into either the small cell SFP network port or the UNI port of the communication equipment (e.g. microwave radio). 2. Wholesale backhaul is typically the catalyst for service providers offering best-effort Ethernet services to enhance their service mix with Carrier Ethernet services for retail carriers and enterprise customers. While these solutions focus on wholesale mobile backhaul, they can easily be adapted to cover the requirements of other wholesale and retail markets that also mandate stringent QoS, powerful OAM, SLA assurance, c ircuit validation, and diagnostics critical for Carrier Ethernet service delivery.

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5.2 SLA-Assured Ethernet Backhaul with Legacy 2G/3G Support While wholesale backhaul is largely driven by the need for scalable Ethernet pipes to carry 3G and 4G packet-based traffic, most cell sites still support 2G/3G traffic that is carried over traditional T1/E1 leased lines. As such, it typically makes sense to reduce the expense of maintaining dual network infrastructures by consolidating TDM and Ethernet traffic onto a single Ethernet access network. This is easily accomplished using a NID that has the option to support T1/E1 circuits with the required facility loopback capabilities. For Ethernet this would be wire-speed MAC swap or OAM loopbacks, and for T1 it is ANSI in-band facility loopbacks. This approach not only eliminates the need to maintain dual network infrastructures, but also addresses the issue of T1/E1 exhaust in cases where more TDM circuits are needed to the cell site but available copper pairs are lacking.

5.3 Addressing LTE-Advanced Timing/SLA Requirements w/ Distributed PTP-GM Timing is a key component of cell sites, and synchronization requirements are becoming even more stringent for LTE-advanced services. While TDD systems have always required both time and frequency accuracy, 3G and LTE FDD systems have only required frequency accuracy. Now with LTEadvanced, both TDD and FDD systems will require time accuracy. GPS is the only practical ubiquitous time dissemination technology available today, so distribution of time will always be based on a GPS system, either with IEEE 1588v2 Precision Time Protocol (PTP), or with GPS at each and every site. Installing GPS at every cell site is usually an expensive undertaking, and often not suitable for small cells and locations where sky view may not always be available. The alternative of putting the 1588 PTP Grandmaster at the mobile core and distributing 1588 to the cell sites is also expensive because all the network elements in between must support Sync-E/PTP in order to meet the required time accuracy – which typically involves significant network upgrades. The most cost effective and practical solution is to c ombine the GPS and PTP approaches by moving the PTP Grandmaster as close as possible to the cell sites. This can reduce costs significantly by eliminating the need for GPS at every site, and would not require an upgrade of the whole backhaul network to support PTP, as described in the two solution diagrams below. Because GPS is vulnerable to both unintentional and intentional interference such as jamming and spoofing, GPS backup is important. The best way t o achieve GPS backup is via Sync-E. RAD’s ETX solution supports both a full featured PTP Grandmaster and Sync-E for GPS backup, while also providing low cost access aggregation with integrated SLA assurance, circuit validation, fault isolation and traffic management.


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5.4 Hosted “vNID” Supporting Mobile Operator and Wholesale Backhaul Provider Simultaneously Mobile operators rely on wholesale service providers to reach their out-of-franchise cell sites. The contracts with the wholesale providers require that strict SLA guarantees are met. Wholesalers utilize NIDs at the demarcation point to manage the service including traffic policing, circuit validation and performance monitoring to ensure they have the tools to defend their SLA guarantees. Mobile operators also require some form of demarcation at the cell sites. Some mobile operators will deploy their own separate NIDS, while others will test to their cell site routers (CSR). Separate L2 NIDS are typically required for accurate monitoring and circuit validation since CSRs are typically L3 devices that are not optimized for L2 monitoring. The challenge for the mobile operator is how to deploy and maintain NIDs out-of-franchise where the service provider has no facilities or technical personnel. The MEF has been working on a solution called the vNID or “Hybrid NID”, where a single device will provide dual logical demarcation points for both the wholesaler and the mobile operator. The demarcation functions include Service OAM for SLA assurance, but there are significant challenges associated with two providers collaborating to deliver an Ethernet service. RAD offers another alternative which is a miniature NID (MiNID) in a SFP sleeve format that the wholesaler can insert into the UNI port delivering service to the mobile operator. The MiNID makes it possible for the mobile operator to independently monitor and test the backhaul service, only without the power, space and operational costs associated with maintaining a separate NID. The wholesaler can offer this added value service in the form of a hosted “vNID” solution, as shown in the diagram below:


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5.5 Business Services over Backhaul Infrastructure Wholesalers building out their access networks can easily reuse the same infrastructure to provide carrier Ethernet services with SLA guarantees to businesses that are within a 15-mile radius of the network. A dilemma has long existed as to whether point-to-point radios that offer low latency, high bandwidth links should be selected over cost- and space-efficient multipoint radios that statistically share bandwidth between many subscribers and require only a single antenna per sector. RAD’s

is a perfect solution because it provides

dedicated bandwidth per subscriber unit. This alternative offers the same advantage as a traditional multipoint radio in that a single base station can support multiple subscriber units, but it goes a step further by making SLA guarantees possible since bandwidth is assigned in fixed increments. The Airmux-5000 supports 250 Mbps aggregate bandwidth and multiple frequency bands, and performs excellently even in nLOS environments.

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5.6 Comprehensive SAA Solution Including GbE/10G Rings, TDM & Timing for Macro & Small Cells This solution demonstrates the breadth of the RAD backhaul offering – from an SFP-based NID (MiNID) to scalable 10GbE access/aggregation with 200G switch fabric. Service providers benefit from quicker time-to-market, certification and OSS/BSS integration. The solution components work well together with important capabilities such as hardware OAM, advanced traffic management and standard G.8032v2 ring topology with sub-50ms failover. The CE 2.0-certified ETX-205A is an award winning mobile demarcation device (MDD) that is ideal for macro cell sites that require pure Ethernet or Ethernet and TDM backhaul. It also has a built-in 1588 PTP grandmaster option, ideal for providing small cells with master of backup timing. The MiNID (Miniature NID) is an Ethernet demarcation device in an SFP form factor that is an excellent complement for hosted NID services and small cell circuit validation and performance monitoring. The CE 2.0-certified ETX-5300A Ethernet service aggregation platform is ideal for EVC and access aggregation since it slashes port costs while also supporting advanced features such as 1588v2 Grandmaster, TDM circuit emulation and rings.


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•

Designed as MEF machines to deliver standardized E-Line, E-LAN and E-Tree services per MEF9 and MEF-14 specifications, as well as MEF-22-based mobile backhaul applications and E-NNI support per MEF-26 for carrier to carrier connectivity. Conforms to emerging CE 2.0 specifications.

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The most sophisticated traffic management capabilities available, including multi-level hierarchical scheduling with policers and shapers per UNI, EVC and EVC.CoS to optimize bandwidth utilization while providing differentiated QoS to meet committed SLAs and predictable performance for multi-priority traffic.

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Comprehensive set of hardware-based Ethernet OAM, fault management and performance monitoring tools per IEEE 802.3-2005, 802.1ag and ITU-T Y.1731. Built-in RFC-2544 / ITU-Y 1564 tester capabilities and L2/L3 diagnostic loopbacks.

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Full suite of standards-based timing and synchronization over packet attributes.

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Extensive TDM pseudowire support: CESoPSN, SAToP, CESoETH; MEF-8 or UDP/ IP encapsulation.

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Carrier-grade service resiliency with LAG, Ethernet Linear and Ring Protection Switching: ITU-T G.8031, G.8032.

•

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Miniature NID (MiNID) for small cells and hosted “vNID” applications




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6.1 Product Highlights and Building Blocks

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MEF CE 2.0 certified including E-Line, E-LAN, E-Tree and E-Access

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Hardware-based forwarding to ensure low intrinsic delay (under 5 uSec)

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Hardware-based OAM for accurate SLA assurance (performance monitoring)

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Circuit validation tools including: -

Enhanced RFC-2544 / ITU-T Y.1564 for EVC.CoS circuit validation of up to 8 CoS simultaneously

•

•

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ANSI in-band T1 facility loopback support

Hierarchical traffic management: -

Up to 1MB CBS to accommodate LTE microbursts (e.g. 313KB for 500M CIR)

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“Multi-CoS“ for more efficient, predictable QoS for mobile backhaul (MEF 22.1 MBH)

Carrier grade availability and reliability: -

Link aggregation per 802.3 clause 43

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ITU-T G.8032v2 ring protection with sub-50ms failover

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Environmentally hardened with redundant -48/24 VDC (field replaceable)

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Full service management including performance portal and SLA reports

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Full timing support including Grandmaster and one-way delay

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Pseudowire / circuit emulation to support TDM 2G/3G services



6.2 Building Blocks

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Six combo Ethernet ports – each capable of hardware-based OAM and per EVC.COS RFC-2544

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Policer CBS up to 1MB, e.g., for LTE microbursts requiring 313KB for 500M CIR

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4/8 x T1/E1 ports for circuit emulation of legacy 2G/3G traffic

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ITU-T G.8031 path and G.8032v2 ring protection with sub-50ms failover

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Sync-E and PTP (Grandmaster, Slave or Transparent Clock) for timing services, and one-way delay

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Environmentally hardened with redundant, field replaceable power supplies


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Flexible 10G aggregation with up to 3 x 10GbE and up to 20 x GbE

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Ring and linear protection ITU-T G.8032v2, ITU-T G.8031

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MEF CE 2.0 compliant Ethernet services: E-Line, E-LAN, E-Tree, E-Access

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Service validation: RFC-2544/ITU-T Y.1564

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Carrier grade design: service, port and power supply redundancy



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Fully redundant hardware with in-service software upgrade capabilities

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Extensive toolset to deliver and manage SLA-based services

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Hierarchical traffic management including traffic profile per service

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3U high modular unit combines scalability with performance

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8K flows, 768 shaped EVCs, 256K MACs and 2,048 hardware OAM sessions

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Up to 16 x 10GbE and 80 x 1GbE for scalable Ethernet services to macro and small cell sites

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Up to 16 x OC-3/STM-1 for circuit emulation of legacy 2G/3G traffic (SATOP, CESoPSN, MEF8)

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Full timing support including PTP Grandmaster, slave, transparent clock and SyncE


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•

Carrier Ethernet Service Demarcation -

Per-port/per-flow configuration, classification, VLAN manipulation, L2CP tunneling, S-VLAN tagging, etc.

•

•

•

•

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Performance Monitoring and Diagnostics -

IEEE 802.3-2005; IEEE-802.1ag (CFM); ITU-T Y.1731

-

Wire-speed 2544/Y.1564 responder & L2/L3 loopbacks

Modular Design* -

SFP sleeve accommodates generic or code-locked SFPs

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Supports existing optics for improved inventory

Management -

Zero-touch provisioning based on DHCP

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VLAN-based in-band or via I2C out-of-band channel

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Secure CLI (SSH) or web-based GUI (SSL)

Target Applications

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Small cells – with space, cabling and power restrictions

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Wholesale backhaul – end-to-end service monitoring

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Network upgrades – boosts legacy switches and routers to carrier-grade Ethernet



RADview simplifies service provisioning by offering element and service configuration, activation and discovery as well as OPEX reducing functions, such as job automation. RADview is a Java-based, carrier-class network management system. The system features an embedded Oracle/Informix database, and manages RAD’s Carrier Ethernet and TDM/SONET product portfolios as well as third party devices. It conforms to the ITU-T model with end-to-end visibility, and its distributed clientserver architecture is scalable to support large growing networks. As a modular management system, RADview is equipped with a number of standard northbound interfaces for easy integration with OSS and umbrella systems. In addition to featuring a plug-in for connecting to IBM Tivoli’s Netcool®/OMNIbus™ fault management program, the system allows seamless communication with network-wide platforms for inventory (resource) management, performance management, and service provisioning, as well as with carriers’ proprietary OSS. In addition to supporting various APIs such as CORBA, MTOSI, SNMP, and CSV, RADview has evolved to support element and service management capabilities with APIs that simplify integration by providing OSS interfaces based on MEF attributes. RADview smoothly interacts with higher management levels to communicate essential network information to service, operations and business management functions. By serving as a mediation layer between the various network elements (NEs) and the umbrella system, RADview minimizes the integration costs associated with new NE additions.


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6.3 Smart SFPs: Complementary, Compact Mobile Backhaul Problem Solvers

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SFP implementation saves on space, power and cabling

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Complements any Ethernet switch, NID, CSR or base station

Mobile Network •

Wire-speed bridging

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I2C management integration into RAD’s ETX family

RNC/aGW MSPP

T1/T3/OC3

SONET

eNB ETH

and IPmux-155

•

Router

Extends Ethernet range from 100m to 550m at 100Mbps Mobile Network

•

Symmetric bandwidth (unlike VDSL)

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Eliminates need to replace copper with fiber

RNC/aGW

PSN Router

•

Plug & play device (no management required)

•

TDM circuit emulation over PSN

GE

RNC/aGW •

•

•

Multi-standard network encapsulation Advanced TDM synchronization

BTS

PSN

T1/T3

BSC

I2C management integration into ETX family


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•

NID in an SFP form factor

RNC/aGW

GE

PSN eNB

•

Wire-speed LB response

•

Can measure/verify the SLA

•

Named finalist for 2012 Leading Lights Awards: “Best Telecom Product”

ETH

E2E SLA Assurance

Mobile operators are kicking into overdrive as they try to keep u p with the insatiable demand for bandwidth and widespread adoption of cloud-based services that exists among today’s device-driven society. Critical to them as “fast pipe” providers is their ability to differentiate, which is best done by improving network performance, expanding network coverage, and/or offering advanced LTE features. Mobile Backhaul is evolving swiftly, as carriers migrate from TDM and SONET/SDH to Carrier Ethernet, and then further on to MEF CE 2.0 for better scalability and cost structures. At the same time, synchronization requirements are becoming more stringent to support LTE-Advanced, making timing a crucial element. RAD’s Mobile Backhaul solution helps mobile operators and their wholesale backhaul providers improve network performance and expand network coverage. It includes a complete Carrier Ethernet ecosystem of mobile demarcation devices, an aggregation platform, and a new miniature SFP-based NID – all unified under our robust service management system featuring a performance management portal and SLA reporting. Solution highlights include hardware-based OAM, SLA assurance, circuit validation tools, hierarchical traffic management and full timing support including Grandmaster and one-way delay.

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Several of RAD’s backhaul solutions, such as the CE 2.0-certified ETX-5300A Service Aggregation Platform and ETX-205A Mobile Demarcation Device, have already been recognized by the industry as best-in-breed (see below). In addition, the ETX-5300A was a finalist for LTE North America’s 2012 “

”, and the MiNID SFP-Based Ethernet Demarcation Device was a finalist for

Light Reading’s Leading Lights 2012 “


” in the Telecom category.

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RAD Mobile Backhaul Solution Guide WP 20130715

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