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GrangeNet

GrangeNet. Dr. Greg Wickham. APAN NOC 25 August 2005. GrangeNet II. Background Architecture Services Status Summary. GrangeNet II. Background Architecture Services Photos Summary. Background. Funded by DCITA - The Advanced Networks Program (ANP)

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GrangeNet

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  1. GrangeNet Dr. Greg Wickham APAN NOC25 August 2005

  2. GrangeNet II • Background • Architecture • Services • Status • Summary

  3. GrangeNet II • Background • Architecture • Services • Photos • Summary

  4. Background • Funded by DCITA - The Advanced Networks Program (ANP) • GrangeNet is a non-entity joint venture partnership of • The consortium received $14M in 2002 and $4M in 2005 from the Australian Government under the Advanced Networks Program of the Building IT Strengths (BITS) initiative. • GrangeNet will run until December 2006

  5. Background • Single pair of fibres • Brisbane to Melbourne • Managed DWDM Backbone • OC 48 Circuits • 2 Gbit/sec Bandwidth swap to Perth (3456km)

  6. Background “Throwing technology at a community doesn't work. You need people to understand what it will do for them and then they need to change their behavior.“ • GrangeNet works with many communities in ICT, the arts, sciences, humanities, education and engineering. • GrangeNet facilitates collaboration between communities (layers 1 through 8)

  7. Background • WAN had greater capacity than LAN • Forced members to think about their internal networks • Subscription based model • Force members to think about their internal charging policies • Network usage (volume no longer an impediment)

  8. GrangeNet II • Background • Architecture • Services • Photos • Summary

  9. Architecture • Grangenet I (A Layer 3 Network) • GSR 12410 • OSR 7609 • GrangeNet II (A Layer 1,2,3 Network) • Cisco 7609 • ONS 15454 E

  10. Architecture • A network based on the latest generation of hardware and software • Capable of: • Layer 1 – Light Paths • Layer 2 – VLANS • Layer 3 – Routing • Carrying: • IPV4 Unicast and Multicast • IPV6 Unicast

  11. Architecture

  12. Hardware Summary • Layer 3 and Layer 2 • Cisco 7609 • 3BXL Supervisor • 3BXL DFC • 67xx series line cards • Layer 1 • ONS 16454E • OC48 backbone • Gigabit Interconnects

  13. Hardware – Cisco 7609 • 720 Gbps switching capacity (40 Gbps / slot) • 1GB of DRAM • Sup720-3BXL • IPv4 routing to 400Mpps; and IPv6 to 200Mpps • Routes 1,000,000 (IPv4); 500,000 (IPv6) • MPLS in hardware • L2 bridging up to 400Mpps • All line cards are fabric enabled with 3BXL distriubuted forwarding cards (except FlexWan)

  14. Hardware – ONS 15454E • Hardware: • Cisco ONS 15454E • Capability: • Time Division Multiplexing • OC48 • Gigabit • Expandable to 10 Gigabit • Carrier Class Reliability

  15. Hardware – 15454E Some assembly required ….

  16. Architecture

  17. Architecture ONS 15454E aggregates Gigabit into OC48 circuits

  18. Architecture Pairs of OC48 circuits carried onmanaged DWDM system

  19. Architecture Etherchannel Trunks oninter-capital links

  20. Architecture - Redundancy • All GrangeNet routers are fully redundant • Dual power supplies • Dual processors (Supervisor or TCC2) • Dual line cards • However • Backbone carried over a Single fibre path • But • Very few fibre breaks • More scheduled outages than unscheduled

  21. GrangeNet II • Background • Architecture • Services • Photos • Summary

  22. GrangeNet II Services • With the implementation of GrangeNet II more services can be offered than just the traditional R&E (routed protocols) • The service offerings are: • GrangeNet R&E - Layer 3 (Network Layer) • GrangeNet LAN - Layer 2 (Data link layer) • GrangeNet Lightpath - Layer 1 (Physical Layer)

  23. Provisioning

  24. Provisioning Cisco 7609 handles all layer 3 (IP routed) and layer 2 (Vlan) switching

  25. Provisioning Cisco ONS 15454E handles all layer 1 (TDM) switching

  26. GrangeNet R&E • GrangeNetR&E is the traditional layer 3 service that permits members to peer with both local and international Research and Education members. • IPv4 • Unicast • Multicast • IPv6 • Unicast • Multicast (2006*)

  27. GrangeNet LAN • An complementary service to MPLS is GrangeNetLAN - a Layer 2 service. • This is a similar offering to GrangeNetLightpath however the members traffic is carried across the GrangeNet backbone in dedicated Vlans. • There are currently no capacity or quantity constraints on the LAN service offering. A client can request many LAN services and have these combined with a R&E service onto the same physical GrangeNet connection.

  28. GrangeNet LAN • Negotiations: • VLAN number – Must be unique between all sites and GrangeNet(*) • Path (VLANs are statically mapped to bearers) • Tagging (untagged or tagged) • Any VLAN can be • extended to any POP site • extended to ALL POP sites • GrangeNet is a big ‘switch’

  29. GrangeNet LAN GrangeNet Member can send untagged traffic and it will be tagged and carried through the network

  30. GrangeNet Tag 500 Tag 501 Tag 493 GrangeNet LAN Members can send multiple VLANs down the same physical circuit

  31. Campus A Tag 493 GrangeNet GrangeNet GrangeNet Campus B Tag 501 Campus C Tag 500 GrangeNet LAN

  32. GrangeNet LAN • Shared bandwidth with all other subscribers • Member security is an issue

  33. GrangeNet LAN • Management Issues: • Not possible to determine bandwidth usage per VLAN • Configuration implicitly trusts Cisco more than Members • Members faced with security issues • Why not MPLS?

  34. GrangeNet Lightpath • GrangeNetLightpath is a Layer 1 clear channel service that transports data between member endpoints. • Satisfies members security constraints. • The implementation of the Lightpath service is at a TDM (Time Division Multiplexing) level direct onto the GrangeNet DWDM backbone.

  35. Provisioning - L1 / LightPath • Reserved bandwidth • Minimal security implications

  36. Architecture

  37. GrangeNet The Physical Provisioning - L1 / LightPath Bringing researchers together … The Reality

  38. Using a Light Path • Provisioning: • Currently a manual process • Uses Cisco Transport Controller • Takes minutes • UCLP (From CaNARIE) (in deployment) • Connectivity: • User needs a connection to two GrangeNet POPs

  39. GrangeNet II • Background • Architecture • Services • Photos • Summary

  40. Photos

  41. Photos

  42. Photos

  43. GrangeNet II • Background • Architecture • Services • Photos • Summary

  44. Summary • Layer 3 – Domestic and International R&E • Layer 2 – VLAN • Replaced use of MPLS • Challenges users to think about the way they use networks • Layer 1 – Lightpath • Last mile limitation

  45. Summary • On the plus side • 7609 is an excellent routing platform • 15454E very simple to use • A very stable and a mostly manageable solution • Flat network is extremely flexible

  46. Questions? greg.wickham@grangenet.net http://noc.grangenet.net

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