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Janet Network update and futures - by James Blessing
The document provides an update on the Janet network including: - The backbone and regional access infrastructure uses Ciena transmission equipment and Juniper routing with 6-8 100Gbps trunks and some 400G transmission. - Flex grid technology allows switching and reconfiguration at ROADMs in all directions and reuse of wavelengths. - Traffic levels increased during the pandemic. - A new managed firewall service is being introduced with global, local, and edge capabilities. - Updates to security policies include blocking high risk inbound traffic by default and an annual self-assessment requirement for members.
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Janet Network update and futures - by James Blessing
- 1. Tech 2 Tech Wales 7thJuly 2021
- 2. <Jeremy Sharp, JanetCTO/>
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- 5. Janet network High-level view •Backbone+ regional aggregation •Dark fibre network backbone •Entered service in 2013 •Ciena transmission, managed in-house •Juniper routing equipment •6x100Gbps trunks in parts of the network •Increasing to 8x100Gbps this year •Some 400G transmission •Fibre contract runs to 2028 Glasgow Manchester Leeds Nottingham Birmingham Powergate Telehouse West Telehouse North Harbour Exchange 100G 400G 600G 400G Transmission 4x100GE client interfaces 6x100G Transmission 6x100GE client interfaces Bristol 200G 5
- 6. Janet backbone and regionalaccess infrastructure Janet backbone Scotland North East North West Midlands East South West Thames South London Public sector networks Yorkshire Northern Ireland 6
- 7. Transmission Update 7 • Spectralefficiency, more flexibility in planning Colourless and Gridless • Allow switching and reconfiguration at each ROADM in all directions (have been since 2013) Directionless • Allows reuse of wavelengths in multiple directions at a node Contentionless
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- 9. Workstack 9 Upgrade software Use 400Gcards in 200G mode (because they’ll operate in 50Ghz Replace CMD’s Upgrade to 400G as needed
- 10. Traffic levels duringthe pandemic 10
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- 12. Managed Firewall • NewService • On premise edge devices • “Central” firewall • Global Rules • apply to all sites (a0) • Local Rules • apply to individual sites (a1) • Local Firewall • Local rules for zones 12
- 13. Security Consultation 13 •Updating currentpolicy to reflect new threat landscape •New principles: •Geographic IP location blocking by default for certain high-risk protocols against traffic inbound to Janet, e.g. for RDP •Requirement for annual self-assessed security posture review by members •Proactive scanning, in response to critical alerts or actionable intelligence •Also: New cyber threat sharing group being formed (using MISP) •If interested in piloting with Jisc please email cti.analysts@jisc.ac.uk •Events: Security T2T (31st August), annual Jisc security conference (9-11th Nov)
- 14. GÉANT GN4-3 project 14 Interestingareas from GN4-3 WP6 • Data plane programmability / in-band network telemetry • Deploying non-IP services: QKD, optical T&F • RARE: open source platform combining • FreeRtr control plane and P4/DPDK data plane, • Edgecore Wedge 32x100G • See https://wiki.geant.org/display/RARE/Home • Includes distributed P4 La • Network monitoring: perfSONAR (with friendly plug-in support) • Full list of activities: https://wiki.geant.org/display/NETDEV
- 15. Time & Frequency •Time distribution • NTP Already available • IEEE 1588 PTP 15
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- 18. Future • Janet Blog- https://shapingthefutureofjanet.jiscinvolve.org/wp • Slack - https://bit.ly/NWS-slack • Future T2T events - https://www.jisc.ac.uk/get-involved/tech-2-tech-your-role-in-shaping-janet “It is often said that before you die your life passes before your eyes. It is in fact true. It’s called living.” Terry Pratchett