6597ec18cdd8d736b4551ae3f625f12b.ppt
- Количество слайдов: 19
Circuit Services Christian Todorov Internet 2 Fall Member Meeting October 9, 2007
Internet 2, Circuits & You • Where we have been • Changing needs • Why circuits are different • How Internet 2 provides circuits • Internet 2 Circuit offerings • Who to contact 2 Christian Todorov
Abilene Network • Internet 2’s previous network (Abilene) was IP only and based on unprotected 10 G (OC-192) waves on the Qwest infrastructure • Utilized IS-IS • Natively supported IPv 4/v 6 and multicast • IP is great… for most people… most of the time… 3 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 4 Christian Todorov
Demands on the Network • Entering the age of large scientific facilities • Large Hadron Collider at CERN • Very Long Baseline Arrays (radio astronomy) • Large Synoptic Survey Telescope (2010 -13) – 30 TB/night • An increasingly diverse set of demanding applications are utilizing network resources • Telemedicine: BIRN project, proteomics, tele-surgery, remote ICU, radiology: high-resolution 3 D color f. MRI brain scan = 4. 5 PB • Telepresence: master classes, virtual classrooms, tele-psychiatry • High performance video delivery: Uncompressed HD, Cinegrid • Disaster Recovery and distributed storage 5 Christian Todorov
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 6 Christian Todorov
The Internet 2 Network Overview • Layer 1: Managed wavelengths from Level(3) Communications • Level(3) owns and manages Infinera optical gear: responsible for software upgrades, equipment maintenance, remote hands, sparing, NOC services • Internet 2 NOC has total provisioning control • Layer 2: Internet 2 owned and managed Ciena Core. Directors • Using DRAGON GMPLS control plane • Layer 3: Internet 2 owned and managed Juniper T 640 s • Expanded Observatory • Platform for layer 1/3 network performance data collection, collocation, experimentation • perf. SONAR integration for intra- & inter-network performance analysis • International connectivity • Layer 1 network extended to international exchange points in Seattle, Chicago and New York City • Peering points in Seattle, PAIX, Equinix Chicago 7 Christian Todorov
Title of slide • Level 1 • Level 2 • Level 3 • Level 4 • Level 5 Christian Todorov
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 9 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 midpath L 3 interfaces • Cost efficiency: L 3 router blades cost > L 2 ports > L 1 or L 0 interfaces • Capability tradeoff but could possibly improve performance 10 Christian Todorov
Internet 2 Circuit Services • Internet 2 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 50 Mbps to 10 Gbps 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 Core. Directors • Provisioned automatically • Requires participation in the DCN protocols • 50 Mbps to 10 Gbps • Have no fee for use • Short duration ~2 weeks • Best effort service 11 Christian Todorov
Connecting to the Internet 2 Circuit Infrastructure • Accessing the Circuit Infrastructure • One must have a connection to the Internet 2 circuit infrastructure in order to access the Internet 2 circuit services. • The circuit connection is separate from the IP connection • The standard connection to the circuit infrastructure is either 1 GE or 10 GE – other interface types are supported at an additional fee • ONE physical connection to the circuit infrastructure on the Ciena Core. Directors 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 (1 GE or 10 GE) that is equal in bandwidth to the contracted IP connection, e. g. 10 G IP connectors receive the use of a 10 G circuit connection. (Nonconnectors may be subject to additional port fees) • Circuit connections are available to Connectors, members and peers 12 Christian Todorov
Internet 2 Network Node Architecture • Example of Optical only Node for connected RON or Peer Network 13 Christian Todorov
Internet 2 Network Node Architecture • 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 14 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 Internet 2 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 15 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 Internet 2 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 10 G waves • Available now 16 Christian Todorov
Who to Contact • DCN connection requests or information: • Network@internet 2. edu • Rick Summerhill is lead • Static circuit requests, fees and information: • waveco@internet 2. edu • Christian Todorov is lead • Member and Partner Relations assistance: • univengage@internet 2. edu • Marianne Smith is lead 17 Christian Todorov
Questions? 18 Christian Todorov
19 Christian Todorov
6597ec18cdd8d736b4551ae3f625f12b.ppt