SSX-3000 is a purpose-built hardware / software platform on which Stoke mobile edge gateway applications are delivered. The modular five slot system combines leading edge commercial silicon in an innovative "one hop" architecture and StokeOS operating system, to provide a range of packet processing functions with industry leading KPIs. The SSX-3000 delivers fundamental feature, price, and performance advantages in an operationally efficient, multi-service network element.

The eco-friendly SSX-3000 is highly reliable with no single point of failure, employing the latest high availability design principles. The SSX has been battle tested through years of high growth LTE network operations and is delivering greater than 99.999% availability.

System Overview

The SSX-3000 has five slots. Two slots can be used for management cards (one redundant) and up to four are available for Stoke's unique "one hop" line rate capacity, packet processing line cards. The SSX-3000 offers a comprehensive set of field replaceable components and several high availability configurations to ensure non-stop service. Hot swappable components include line cards (GLC4 and XGLC20), power entry modules, IP management card (IMC) and fans.

Stoke Session Exchange 3000

There is dedicated hardware for routing on the IMCs and several subsystems for packet forwarding and processing on each line card. The two functions are separated, so one subsystem does not affect the other during peak load events. Non-stop forwarding is supported whereby packet forwarding continues through switchover from primary to secondary IMCs.

Line Cards

Two hot swappable line cards are available for the 5 rack unit SSX-3000 chassis. The GLC4 line card provides 4 Gbps of capacity (FD) for all available packet processing functions and Gigabit Ethernet connectivity. The XGLC20 provides five times greater capacity (20 Gbps FD) in the same 5 RU chassis with 10 Gigabit Ethernet connectivity. The XGLC20 is completely compatible with existing SSX-3000 chassis, IMC management cards, and current SSX power modules and fans. This means that operators with SSX-3000 deployments today, using the highly capable GLC line card, can step up throughput capacity without changing network element footprint, operating system or other hardware components.

IP Management Cards (IMC)

The IP Management Cards run the centralized functions and the system management processes. IMCs can be configured with 1:1 redundancy.

Stoke OS

Stoke OS provides a highly scalable set of functions ranging from authentication and encryption, tunnel termination, traffic and service classification), QoS, charging and reporting, policy enforcement, access control, and routing. This rich set of functions, all performing at line rate, enables the SSX-3000 to be deployed for many mobile broadband access gateway roles. StokeOS is hardened operating system with process auto-recovery for high availability.

"One Hop" Minimizes Latency and Jitter

Stoke integrates all packet and control processing subsystems on every line card. Stoke's "one hop" architecture eliminates the shuttling of packets from box-to-box or blade-to-blade for processing, dramatically reducing system latency. Resulting latency in the SSX is measured at less than 30 microseconds. Latency for competitor systems is measured in tens of milliseconds (1000 µseconds).

Performance without Compromise

The SSX-3000 is provisioned to deliver line rate services, across a broad range of packet sizes – including IPsec encryption/decryption. The distributed architecture removes contention for processing resources found in centralized systems, improving consistency in processing time and reducing jitter. In the SSX, throughput, subscribers, and services all scale linearly. No more sizing gymnastics, trading off subscriber density and throughput for functionality. The SSX has been market proven, through years of live LTE network deployment, to offer greater than 99.999% availability.

The SSX-3000 includes innovative features, deployed on the Stoke eXchange products, and delivers unique benefits to operators.

Feature Description and Benefits
Flexible Virtualization Supports virtual routers or contexts as separate logical routers with distinct addressing and routing tables. Provides a simple, efficient means of aligning network traffic with a broad range of market-driven service models.
Multi-Service Supports multiple products and solutions. Reduces network device count and complexity, increasing operations efficiency.
Multimedia Optimized Latency under 30 micro seconds. Ultra-low latency ensures smooth video and voice services delivery.
Optimal Scalability Subscribers, services and throughput scale linearly. Eliminates trade off of capacity in one functional area to another.
Application Aware Awareness of the applications within subscriber sessions enables QoS. Relieves pressure on mobile core elements.
Flexible Traffic Classification Allows easy bundling of mashups of applications. Provides uniform treatment of the "subscriber service".
Inter-Chassis Redundancy Stateful system failover option guards against unlikely failures using a second chassis. A high availability configuration option.
Intra-Chassis Redundancy Stateful, field proven option that provides 5 Nines availability without requiring a second chassis. Reduces system costs and footprint.
Carrier Grade All components can be implemented redundantly and are hot swappable. Provides operational ease and service continuity.
Most Deployment Experience Hundreds deployed in live networks supporting millions of subscribers. Significantly reduces deployment uncertainty and risk.

The flexibility, scalability, and performance design of the Stoke SSX-3000 gateway is unmatched by any other gateway equipment available. The SSX-3000 provides the following industry leading capabilities.

Capability Benefits
Highest Encrypted Packet Processing Maintains packets per second rate under heavy network loads. Ensures support of VoLTE and other real-time services.
Highest Throughput (per Rack Unit) Future proofs network capacity against unexpected growth. Reduces physical footprint requirements.
Most Power Efficient (per Gbps) Reduces operating expense and supports green initiatives.
Lowest Latency Ensures smooth video and voice services delivery and maintains high quality user experience.
Proven High Availability Reduces operations risk.

The Stoke SSX-3000 maintains line rate performance -  even performing encryption/decryption functions at packet transmission rates experienced when average packet sizes drop to as small as 96 bytes.  This means that the capacity specified for each line card or system does not diminish as the operator network and services evolves.  This dramatically simplifies operator sizing estimates and reduces the requirement to add equipment as traffic changes over time.

Specification GLC4 Card XGLC20 Card
Port Configuration (SFP) 4 x 1 GigE 4 x 10 GigE
Active Service Classes 284,000 3.8 million
Throughput 4 Gbps 20 Gbps
Encryption / Decryption 4 Gbps 20 Gbps
Encrypted Packet Processing 5.2 million PPS 26 million PPS
System Specifications
Latency <30 microseconds
Power Efficiency 1200-2160 watts

The high performance, compact, power efficient SSX ensures that operators will receive highest possible service life from any Stoke product deployed on the SSX platform.



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