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RBC Interconnect by vivi07

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									Connecting to the RBC Interconnect
Technical Briefing for Opt-out LEAs
Leeds/Bradford Holiday Inn Airport Hotel 12 February 2003

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Introductions
Bob Day Kate Nunn-Price
Network Development Director

e- R.Day@ukerna.ac.uk
RBC Interconnection Project Manager

e- K.Nunn-Price@ukerna.ac.uk

Tony Hacche

JANET Network & Operations Service Centre (NOSC) e- agh@nosc.ja.net
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UKERNA, JANET, SuperJANET
• UK Education & Research Networking Association
• operator of JANET

• Joint Academic NETwork
• UK’s network for tertiary education & research

• SuperJANET
• national broadband backbone of JANET

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UKERNA
• not-for-profit organisation, publicly funded
• by higher & further education funding councils • membership/governance from community served

• mission: “advancing and supporting the network for education and research”
• procure and operate JANET at the leading edge • manage initiatives on behalf of funding bodies • base budget approximately £35M per annum

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Extending to schools’ networks
• England — interconnection of Regional Broadband
Consortia networks via SuperJANET for Wales to SuperJANET

• Wales — connection of Lifelong Learning Network • Scotland — Spark: interconnection of LA schools’
networks via SuperJANET

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Why use SuperJANET at all?
• public policy
• HEFCs, LSC, FEFCs: promote collaboration between education sectors • DfES, SEED, NAfW support

• cost effectiveness
• economy of scale: savings in interconnect cost mean more can be directed at other services

• common applications interest
• e.g. videoconferencing, video content delivery
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Our goals for today …

• understanding of technical model for connection
• financial and contractual questions answered

• LEAs feel able to make decisions

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Technical Aspects of Connection

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Context
DfES
• each RBC and each opt-out LEA in England to be attached to a broadband interconnect which provides the support necessary for the sharing of multimedia content and applications

RBCs
• SuperJANET backbone is the chosen vehicle for the interconnect

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First RBC connection: LGfL

7 February 

from JANET into LGfL
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Ways to connect LEA network
• connection to the RBC Interconnect
• includes connectivity to RBC networks, other LEA networks, universities and colleges • complements LEA’s ISP connection to Internet

• standard connection to JANET
• • • • same service as to each university and college same connectivity to RBCs as via Interconnect connectivity to wider Internet recurrent charges generally higher than for connection to Interconnect
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Ways to connect … continued
• connection via a RBC
• bilateral arrangement with RBC • not contingent upon “opting in”

• no additional charge from UKERNA to RBC
• charge by RBC to LEA a matter for bilateral agreement

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RBC Interconnect
SuperJANET backbone

Interconnect

RBC network

RBC network

HE/FE network

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Backbone architecture
UHI network AbMAN N.I. network FaTMAN ClydeNet EaStMAN

C&NL MAN

RBC
MidMAN

NNW

Glasgow Edinburgh

NORMAN YHMAN

RBC

North Wales Warrington Leeds

RBC
Reading
Thames Valley Bristol

London

EMMAN

US LINX

EastNET LMN

Portsmouth

Kentish MAN

RBCGEANT

South Wales
SWERN

LeNSE

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Interconnect service model
• IP level interconnection • no connectivity to the Internet outside JANET
• (i.e. no “transit”)

• operated to public Internet standards
• IP addressing and routing; DNS

• opt-out LEA network equivalent to RBC network
• same technical requirements • lower entry bandwidth: 4 Mbit/s
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LEA network connection
LEA network

Interconnect

LEA network

RBC network

RBC network

HE/FE network
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Physical connection
• attachment point is a UKERNA backbone PoP
• • • • Didcot Leeds Manchester Newcastle Birmingham Bristol Lancaster Nottingham London (ULCC)

• at Telehouse (London)
• 100 Mbit/s only • limited slots available - RBC priority • LEA service provider must have PoP at Telehouse
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Connection and demarcation model
LEA premises UKERNA PoP

UKERNA managed router
LEA managed router

access link

SuperJANET backbone router

LEA network
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Hosting the UKERNA router
• Cisco 3725
• to be mounted in LEA provider rack • single 13 amp power socket • UPS optional

• RJ45 Fast Ethernet presentation
• standard Ethernet option

• ISDN out-of-band access
• provided by ISP provider or UKERNA (at cost)
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Connection at Telehouse
LEA ISP PoP UKERNA PoP

ISP managed router

local patching

SuperJANET backbone router

LEA network
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IP addressing
• public addresses to be used on Interconnect
• for all entities visible via the Interconnect • registered in RIPE database

• normally from LEA ISP’s address range
• identical to existing public address range used • customer owned address ranges acceptable

• JANET addresses available as last resort
• only available for use within Interconnect • amount allocated governed by RIPE NCC rules
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IP routing
• BGP peering between ISP border router and SuperJANET backbone RBC Interconnect ISP’s transit ISP border router

• Interconnect accepts only registered routes from LEA • ISP may filter routes, but recommend all are accepted • routes from Interconnect must be preferred

LEA network

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DNS
• public DNS used across Interconnect
• entities within the LEA network to be visible via the Interconnect should be registered in the public DNS • e.g. within sch.uk, gov.uk

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Security considerations
• assume the Interconnect poses a similar level of threat to that of the Internet • firewalling recommended
• router which connects to the Interconnect should lie outside • if border router is inside firewall must pass BGP peering

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Documentation
• “Connection of a Regional Broadband Consortium or Local Education Authority to the JANET Interconnect Service” (Issue 2)

http://www.ja.net/schoolsbroadband

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Questions & Discussion

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Financial Aspects of Connection

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Principles of pricing
• principles: provide at cost to UKERNA don’t subsidise from HE/FE funds • cost elements: connection at SuperJANET PoP + transit across SuperJANET + access line from LEA network
• prices from UKERNA include all three cost elements, and are fixed annual prices with no usage charges
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Access links
• based on BT tariffs up to ca. 10 kms: over ca. 10 kms:

LES10 2  MegaStream2

• note: prices given are tariff, subject to survey
• LearningStream tariff not available!

• note: UKERNA must “own” the access link

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Per LEA access link solutions
Barnsley Bradford Oxfordshire Leeds Leeds Didcot Telehouse Manchester Manchester Leeds 2MegaStream2 2MegaStream2 2MegaStream2 Fast Ethernet 2MegaStream2 2MegaStream2 to be resolved by service provider only if authorised by DfES
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Wigan Wirral York Derwentside

Newcastle

Questions & Discussion

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