Networks & Data Centres

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1 Networks & Data Centres A very brief introduction ITSS Induction MT contact@it.ox.ac.uk Henryk Glogowski Head of Networks & Data Centres IT Services September 2017 (V1.1.0)

2 Outline University Network Networks an overview Wireless in the University Data Centre Service Who are we? What do we do? A few key services. For Reference Appendix 1: What is Janet? Appendix 2: What is? Appendix 3: Network transmission times 2

3 University Network - A few facts and figures ~~150,000 (±50,000) user devices 314 FroDo s & UPS s (09/17) >300km external optical cable >1,500 WAP s registered on COWLS 22,710,328 s delivered/week (peak) Average ~4 million/week, over last 12 months 607,191,708 s rejected/week (peak) (last 12 months) Source Average ~19 million/week, over last 12 months 3

4 University of Oxford s Wide Area Network From OUCS in 2010 (p8) 4

7 Odin Service Definition Baseline service funded: 2 Gbps Single FroDo 2 uplinks to the Core Bandwidth Options: 10Gbps (set up charge, annual charge) 40Gbps (set up charge, annual charge, business case required) Additional Resilience: Dual FroDos (set up charge, annual charge) Requirement for additional cabling, firewalls. New features eg IPv6, real-time traffic,... ~98% of all cases For further details please see "Odin Network Service" web page

Service (Pilot) Service delivery Self-managed Centrally-managed OWL service (COWLS)

8 Wireless Networking for ITSS Services OWL For more see Appendix 2 of this presentation OWL Visitor Public Access (The Cloud) eduroam Visitor Access (eva) Service (Pilot) Service delivery Self-managed Centrally-managed OWL service (COWLS) aka OUCS-managed or OWL Phase 2 Max of FOUR SSIDs: OWL, eduroam, public ( _The_Cloud ) & one local SSIDs.

9 NEW! eduroam Visitor Access (eva) Service (Pilot) Launched yesterday for a 4.5 month trial All staff will be able to sponsor up to 3 concurrent accounts, each valid for up to 3 days. Designated Conference Organisers (DCOs) (aka OWL Visitor Administrators) will be able to create up to 1,000 concurrent accounts, each valid for up to 90 days. Access for individual academic visitors can be created by DOCs for medium term periods but for those who are staying longer than a few weeks a University Card and account must be obtained. It must be stressed that accounts should not last longer than required. Assessment: One of our key goals is to ensure that staff are able to use this service with minimal extra demands on IT Support Staff (ITSS) and Help Desk staff. Further details: eduroam Visitor Access (eva) Service (Pilot) 9

10 Data Centre Service Dual DC centres for high available service University Shared Data Centre (USDC) EDC Or just one but expect less availability! The DCS is designed to be Highly Available, NOT Continuously Available. 10

11 University Shared Data Centre (USDC) H1: Cold Aisle (Full) H2: Chimney (Opening soon) Secure 24x7 access 11

12 External Data Centre (EDC) Third party CoLo (still under negotiation) Highly available (claimed 100% uptime) Eco-efficient (PUE 1.25) Off campus High capacity network links (n x10gbps) both within the DC and to the Campus and SDC. 4.5k/10kW/20kW.../40kW per rack options 12

13 Why might DCS interest you? 1. Resilience: independent power feeds from independent transformers, UPS system (failover to mains) and N+1 environmental units. 2. Secure: biometric systems, 360 degree CCTV and an anti-tailgating entrance portal, all with full access audit trails. 3. Green: standard small server room PUE ~2.5 vs USDC PUE ~ Self Service: Online interfaces allow full access to data centre and private cloud resources as if they were sat on the desk. 5. Cost Saving My personal views: 1. No more 'nasty, little rooms' 2. No need to develop & maintain expertise in UPS, Air-Con, racking, security, cabling 3. One less set of supply & maintenance contracts to manage. 13

14 Networks & Data Centres Group Network Operations (NetOps) Alistair James Head of Networks & Data Centres (NDC) Henryk Glogowski Network Support & Development (NSD) Andy Saunders Data Centre Services Manager Alan Hillyer 14

15 Networks Contact details Single point of contact for ALL NETWORK queries/requests etc: Emergencies (office hours ONLY): x(2)

16 Network Operations (NetOps) Tier 1 network helpdesk for University IT Support Staff. Triage of ALL initial requests to networks@it.ox.ac.uk Monitoring and first line response to alerts on network systems and services - 93,087 items (as of 18/09/17). First line maintenance for: University core network Duct, optical fibre (& copper) to the FroDo Network Patching FroDo s + associated UPS s. COWLS edge UAS network (~5,000 devices) Network Hardware Support scheme 16

17 Network Support & Development (NSD) Tier 2 network support. Odin Service Wirless inc. COWLS, etc External links mostly Janet. Data Centre networks Monitoring systems Estates Network for Building Management Systems NTP DNS DHCP Remote Access/VPN Mail Relay & Message Submission services Useful links:

18 University Shared Data Centre (USDC) - Contact details For enquiries: Alan Hillyer (DC Services Manager) (x88661) David Birds (DC Operations Manager) (x73273) usdc@it.ox.ac.uk For problems: usdc@it.ox.ac.uk For more info Co-location Services Private Cloud 18

19 Thank you for your attention Any questions? 19

20 Appendix 1: What is the Jisc network (aka Janet )? Janet is a high-speed network for the UK research & education community. A connection to Janet gives you an extremely reliable & high bandwidth network that will support innovation, research & learning at your institution. Key Facts Janet serves over 18 million end users The network covers the whole of the UK. Janet has over 5,000 km of optical fibre The backbone runs at 100Gbit/s (with an interconnect capacity of around 40Gbit/s) Key services High-bandwidth access to other HEI s & the Internet eduroam Janet Certificate Service Computer Security & Incident Response Team (CSIRT) Network Time Service (NTP) See: 20

21 Janet6 Backbone and Regional Networks 21

22 Appendix 2: What is eduroam (education roaming) Users: researchers, teachers, students & staff Access to the Internet in any eduroam-enabled institution. eduroam is based on the fact that the user's authentication is done by the user's home institution... >6,000 WiFi Hotspots worldwide Note (if required): Use the OUCS VPN Service for an Oxford IP address 22

23 Where is it? Locally: University Hospitals & local surgeries Nationally: ~183 UK sites Internationally: In over 68 countries >6,000 locations eduroam Companion app for Android & ios: helps users to locate their nearest eduroam point 23

24 What s in it for you? You only support your own users! Guests are supported by their home institution One stop shop : configure a laptop or mobile with only one SSID for any Institution that has eduroam Eduroam CAT (Configuration Assistance Tool) 24

25 Appendix 3: Network transmission times 1Gbps 10Gbps 40Gbps 100Gbps 400Gbps 1Tbps 1T Byte P Byte 133, , , , E Byte 1.33E E E E E E+05 Times are in minutes eg 1TByte takes ~13.3 minutes over a 10Gbps link Caveat: These figures assume 100% efficiency! Data in BYTES and transmission rates in bits. For more details see: Page 25

Introduction to eduroam

Introduction to eduroam eduroam (education roaming) is the secure, world-wide roaming access service developed for the international research and education community. Poll Brief History eduroam initiative