Oh I've heard of Gigabit.(g)
OC-192..Isn't that Juniper's market?
Aranea -1 Overview
Are they Beta UUNET?(GREG at supercomm 2000)?
cwnt.com
System
200Gbps cell based non-blocking switching fabric.
16 dual-AP interface slots.
2 route processor slots.
5 switching fabric slots.
Up to 1Gbyte memory per dual-AP slot.
Up to 32 OC-192 ports, 64 OC-48c ports, 128 OC-12c ports or 128 Gigabit Ethernet ports.
Multilink trunking up to OC768.
Each of the OC ports can operate in Packet Over SONET or IP/ATM.
Dual, redundant, hot-swappable power supplies (AC or 48V DC).
Full redundancy (power, switching fabric, CPU).
Forwarding
384Mpps forwarding rate for both switching and routing.
Up to 1M routing entries
Up to 64K unicast end-to-end flows
Up to 64K aggregate flows
Up to 8 Classes
1 path per interface
32K full wire non-blocking multicast sessions
Software
Industrial-strength routing protocols (RIP, OSPF, BGP-4, DVMRP, PIM).
Embedded UNIX BSD based operating system.
Management and configurations wizards.
Compact PCI industrial form factor route processor.
Description
The Aranea-1 architecture is based upon distributed custom designed hardware, providing the ability to grow both in backplane speeds and in packet processing power. The Aranea-1TM backplane is a non-blocking cell-based backplane starting at speeds of 200Gbps and scalable up to multiple terabits per second. The system packet processing capability starts at 384Mpps (Million Packets Per Second) and scales up as the number of ports grows.
Interfaces
The Aranea-1TM offers the highest port density per rack space, enabling up to 256 OC12 , or 256 Gigabit Ethernet, or 128 OC48, or 32 OC192 interfaces, all in a single 19 inch wide rack, optimally utilizing precious POP rack space.
The OC ports may either be Packet-Over-SONET (POS) interfaces or ATM interfaces. The ATM interfaces may be connected to the Virtual "Pipe" through a packet segmentation and reassemble (SAR) Integrated device, enabling seamless interaction with any of the other packet based interfaces, or the ATM cells can be switched within the Aranea powerful switching fabric.
Scalability
The Aranea-1TM Cluster architecture enables the connection of multiple Aranea-1 machines into a single virtual router with an aggregate bandwidth of multiple terabits per second. The clustered systems may be managed as a single virtual router, regardless of the routers physical location. Up to 16 interfaces may be combined into a single "trunk-pipe" delivering OC768 (40Gbps) for inter-cluster links, using DWDM technology (Dense Wavelength Division Multiplexing).
The system's interfaces are connected to the switching fabric through a common interface, referred to as a Virtual "Pipe". Each Pipe can support an aggregated throughput of 5Gbps of combined interfaces: 2 OC48 port, or 4 OC12 ports ,or 16 OC3 ports, or 4 Gigabit Ethernet ports.
Cell Based Switching Fabric Animation
Architecture
Data packets from the Aranea-1TM interfaces are segmented into fixed sized cells at the inputs to the switching fabric, and reassembled at its outputs. Thus, the core architecture is suitable both for variable size packet networks such as IP networks, as for cell-based networks such as ATM networks. In order to eliminate bandwidth degradation due to packet fragmentation, multiple packets may be packed together on a single cell. The cell-based architecture enables special arbitration hardware to carefully control fair access to the switching fabric and full integration of unicast and multicast traffic for true non-blocking multicasting.
As a forwarding decision determines not only the packet route, but frequently also its forwarding service level, both tasks are the most time-consuming operations that must be performed on routers and typically define the router’s performance. The Aranea-1TM forwarding engine is based on patent pending state-of-the-art technology. As every true brilliant technology the Aranea-1 superior forwarding features are implemented using extremely simple and compact resources.
Hundred of millions of packets per second (which can scale up) are achieved using distributed sophisticated search paradigms.
Supporting IP multicast, IP multi-path and Aranea-Clusters, makes the Aranea-1 supports 256K IP subnets and a total of 384M searches per second. Each pipe has its own forwarding engine capable of up to 6M searches per second, supported on all subnets.
Differentiated Services
The Aranea-1TM provides a rich set of service tools, enabling both simple and sophisticated quality of service features to coexist. The system supports value-added service such as high priority transmission for business critical applications and managed LAN/legacy services. It provides levels of service that adequately correspond to different classes of traffic, including IP-based data, legacy data, voice and video.
Virtual Private Networks (VPN) may be defined at various levels. A user-to-user VPN can be defined using the end-to-end flow or aggregated flow concepts. Higher level VPN’s may be defined between remote ISP’s using the aggregated-flow and the class concept. Finally, a physical line can emulate one or many leased lines through the path concept.
The Aranea-1TM system defines four types of service-entities used for providing differentiated services:
End to end flow is the basic service-entity. It is defined as a stream of packets sent from one specific application running on one computer to a second specific application on a second computer.
Aggregated flow is a stream of packets sent from a group of applications in one subnet to other applications running on a second subnet.
Classes can be viewed as an aggregation of aggregated flows, the IETF defines up to 64 classes where a flow can be mapped to any of the classes.
Paths are OSI "Layer one" entity (not necessary the physical line itself), it can be viewed as an aggregation of classes.
A packet leaving an application (host) is mapped to an end-to-end flow. This flow may be aggregated into an aggregated-flow when leaving its LAN and entering the Internet. Several aggregated flows from different LANs may be mapped into a single class for travel over the Internet core. Multiple classes may be mapped to one path linking one ISP to another.
The Aranea-1TM system supports the configuration of all four types of service-instances. Each service-instance is associated with a set of desired parameters referred to as "service-contract". For example, when an aggregated flow contract is set, it is checked against its appropriate class contract. When an ingress-path or egress-path contract is configured it is checked against the physical medium parameters.
When a service-contract is accepted, it is maintained by policing at the input, mappings to the correct service level inside the machine and shaping at the output.
Software Features Modular software architecture consisting of several execution modes for reliability and scalability: Industrial-strength routing protocols (RIP, OSPF, BGP-4, DVMRP, PIM and more). An extremely intelligent service-compiler enabling the user to set complex service requests and translating them into hardware data-structures. A sophisticated route-compiler generating compact and incremental forwarding entries using the Aranea Operating System routing table. A distributed Cluster-manager enabling the management of Aranea-1TM Clusters.
Redundancy and Resiliency
As a the an Internet backbone router core router the Aranea-1TM system provides no single-point-of-failure reliability with advanced self-test features engineered to require minimal management attention. The unique run-time self-test mechanism is capable of detecting hardware and software failures in real time with absolutely no penalty on performance. When a failure is detected, redundant hardware is activated through a hot-standby mechanism, while the system manger is informed. Every card in the Aranea-1TM system is hot swappable, enabling failed hardware to be replaced without the need to re-boot the system. The redundancy scheme also includes redundant switching fabric, redundant CPU boards, redundant communication circuits between the CPU's, and redundant cooling and power supply systems.
the Internet, Multimedia services, and enterprise networks will converge to create communications super highway, providing a wide range of well integrated services. According to this vision the future networks will transcend distance and bandwidth limitations offering a highly flexible and adaptable high-quality of service at affordable costs.
Charlotte's Web uses state-of-the-art technology in each level of the AraneaTM system: Advanced optical technology solutions includes cutting edge DWDM (Dense Wavelength Division Multiplexing) and long-distance singlemode lasers for the creation of multi-Gigabit per second links over tens of kilometers. Intelligent and elegant integration of cell based and packet based networks provides a true integration of "Virtual Connection" and "connectionless " networks for delivering wire speed multimedia, voice and data services. Highly integrated ASICs technology (Application Specific Integrated Circuit) which is used to build a true non-blocking switching fabric is combined with routing protocols and Quality of Service software tools.
Networks using the AraneaTM system will benefit Enterprise users by providing business-class communications including Virtual Private Networks (VPNs) for real-time communications, including voice over IP, multimedia collaboration and video conferencing, all in a competitive price that will allow even small company's users to benefit from these applications. Greater choices in the telephony market will allow carriers to offer advanced services over MANs (Metropolitan Area Networks) and long distance. Individual home users will benefit as well from the AraneaTM system as ISPs and Cable TV companies will compete with value added services such as multimedia applications, interactive entertainment and personal data communication.
The AraneaTM system does not aim to perform a revolution. Using familiar protocols and existing network infrastructure Charlotte's Web technology will allow networks performance and functionality to grow in orders of magnitude by providing the building blocks for intelligent and risk-free evolution of legacy networks.
Charlotte's Web Networks was founded by a highly skilled and experienced team of software and hardware engineers, together with laser physics researchers and international business management, all creating the technological synergy and determination required to fulfill the technology promise of the "Information Age". |
