Circuit Services - IPTV Christian Todorov Internet2 Fall Member Meeting October 9, 2007
Circuit Services - IPTV
Christian Todorov
Internet2 Fall Member Meeting
October 9, 2007
Christian Todorov2
Internet2, Circuits & You
• Where we have been
• Changing needs
• Why circuits are different
• How Internet2 provides circuits
• Internet2 Circuit offerings
• Who to contact
Christian Todorov
Abilene Network
• Internet2’s previous network (Abilene) was IP only and based on unprotected 10G (OC-192) waves on the Qwest infrastructure
• Utilized IS-IS• Natively supported IPv4/v6 and multicast • IP is great… for most people… most of
the time…
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Christian Todorov
Changing Needs
• As the capabilities available to the research community changed, the demands on the network also changed
• e-science applications and facilities grew and exerted greater performance pressures on the network where TCP and shared environments were no longer acceptable
• Dedicated infrastructure was becoming a requirement
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The New Requirements
• High performance applications are dependent on high performance networks
• Networks must be fast, reliable, scalable, have flexible architectures, be cost effective, capable of delivering multiple services across multiple network layers, easy to operate and maintain, and have a view towards the future
• Enable the user – the network as a service
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Circuits: Why They are Different
• IP networks switch packets of information across shared networks to multiple locations and operate at Layer 3• Shared packet networks are well suited to applications where data transfers are
intermittent, multi-point, or have smaller file size transfer requirements• A “best-effort” service • Represents the largest number of uses of the current network
• Circuits connect two discreet endpoints with dedicated connections and operate at Layer 2 or below• Circuit based networks are well suited to long duration, point to point connections
that support large data transfers or transfers that require very predictable network performance
• Is a dedicate resource• Connection oriented service• Represents a small number users who have high demands of the network:
bandwidth, performance, desire to run alternative protocols
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Christian Todorov
Wavelength & Circuit Services
• Connection oriented services provide for:• Guaranteed bandwidth and predictable jitter and latency
(repeatable, dependable performance between collaborating sites)
• Traffic segregation (support specific policy or traffic engineering requirements)
• Router bypass: Express links created for high-bandwidth, limited duration long-haul traffic reducing the need for mid-path L3 interfaces
• Cost efficiency: L3 router blades cost > L2 ports > L1 or L0 interfaces
• Capability tradeoff but could possibly improve performance
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Christian Todorov
Internet2 Circuit Services
• Internet2 offers two types of Circuits• Static circuits
• Exist on the Circuit Infrastructure supported by both the Infinera and Ciena devices
• Manually provisioned by the NOC• 50Mbps to 10Gbps• Fee for service• Longer duration: months to years• Can have dedicated protection• A contracted, assured service
• Dynamic Circuits • Exist within the Dynamic Circuit Network (DCN) supported by the Ciena
CoreDirectors• Provisioned automatically• Requires participation in the DCN protocols• 50Mbps to 10Gbps• Have no fee for use• Short duration ~2 weeks• Best effort service
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Christian Todorov
Connecting to the Internet2 Circuit Infrastructure
• Accessing the Circuit Infrastructure• One must have a connection to the Internet2 circuit infrastructure in
order to access the Internet2 circuit services. • The circuit connection is separate from the IP connection • The standard connection to the circuit infrastructure is either 1GE or
10GE – other interface types are supported at an additional fee• ONE physical connection to the circuit infrastructure on the Ciena
CoreDirectors will support BOTH the static circuit service AND the Dynamic Circuit Network
• For the first year, the connection to the Cienas are available to IP connectors at no additional fee for a standard connection (1GE or 10GE) that is equal in bandwidth to the contracted IP connection, e.g. 10G IP connectors receive the use of a 10G circuit connection. (Non-connectors may be subject to additional port fees)
• Circuit connections are available to Connectors, members and peers
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Christian Todorov
Network Design
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•Example of Optical only Node for connected RON or Peer Network
Internet2 NetworkNode Architecture
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•Infinera DWDM Gear - Static at the start•Grooming capabilities in ADM to provide sub channels and HOPI types of activities at the start•Simplified and standardized interface to connectors, exchange points, and other global research and education networks - 2 x 10 Gbps interfaces•Measurement and control servers will support the node
Internet2 NetworkNode Architecture
Christian Todorov
Dynamic Circuit Network
• The Dynamic Circuit Network (DCN) is considered a network due to its characteristics and behavior: it is protocol driven, has the capability to determine paths, can exchange network information with neighbors and it is aware of its own resources
• The DCN concept expands the notion of networking where a network facility is able to provide the most appropriate resource for a given demand
• Dynamic Circuit Network (DCN) is developmental until 1-1-08 and persistent thereafter
• Invitations are currently being sent out by Internet2 to the connectors for participation in DCN
• A DCN connection does not imply a connection to the IP network• DCN participation is critical to its success as its value grows with
the number of participants
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Christian Todorov
Multi-Service/Domain/Layer/Vendor Provisioning
Regional Network Regional
Network
Internet2 Network
ESNet
Dynamic Ethernet Dynamic EthernetTDM
GEANT
IP Network (MPLS, L2VPN)
Ethernet
Router
SONET Switch
Ctrl Element
Domain Controller
LSP
Data PlaneControl Plane Adjacency
• Multi-Domain Provisioning• Interdomain ENNI (Web Service and OIF/GMPLS)• Multi-domain, multi-stage path computation process• AAA• Scheduling TDM
Slide from Tom Lehman, ISI-East
GUI
XML
AST
Christian Todorov
Static Circuits
• Static circuits are manually provisioned by the NOC and are intended for longer durations: the typical concept of a circuit
• A contracted, fee for service offering based on bandwidth, duration and distance
• Can exist both on and off of the Internet2 network footprint • Intended to provide dependable, dedicated and
deterministic service to connectors• A static circuit does not imply a connection to the DCN or
the IP network• Includes full 10G waves• Available now• Circuit fees available on request
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Who to Contact
• DCN connection requests or information:• [email protected]• Rick Summerhill is lead
• Static circuit requests, fees and information:• [email protected]• Christian Todorov is lead
• Member and Partner Relations assistance:• [email protected]• Marianne Smith is lead
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Questions?
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