Holes, cables and crossed appendages
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The document discusses a major project to relocate the IT network cables at the University of Sheffield due to construction of a new car park. It notes the university's extensive IT network assets and the risks involved in the project. Alternative options are proposed to reduce risks, such as upgrading switches and installing new resilient cabling. The project involved relocating 30 cables, adding new cables, over 1,900 splices and 350 new connections to ensure redundancy. The document emphasizes communicating risks clearly and working together across teams for successful complex projects.
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Holes, cables and crossed appendages
- 1. Holes, Cables and Crossed Appendages Mark Franklin Voice & Data Support Manager @markfranklin69 mark.franklin@sheffield.ac.uk
- 2. 29/03/2018 © The University of Sheffield
- 3. 29/03/2018 © The University of Sheffield
- 4. 29/03/2018 © The University of Sheffield
- 5. Learning point: If something can break then sooner or later it will break. 29/03/2018 © The University of Sheffield
- 6. Learning point: Perception = Reality 29/03/2018 © The University of Sheffield
- 7. The UoS IT Network • 600+ comms rooms • 60,000+ wired outlets • 3,800 wireless access points • 9,000 phones • 35km duct network • £20-25M UoS asset 29/03/2018 © The University of Sheffield
- 8. 29/03/2018 © The University of Sheffield CC BR DE SG HU
- 9. 29/03/2018 © The University of Sheffield
- 10. 29/03/2018 © The University of Sheffield HU
- 11. 29/03/2018 © The University of Sheffield 1308 1113 0918 1301 0912 0911 1119 1120 1003 1003 1001 1002 1311 1204 1216 1304 1302 1311 1307 1312 1309 1083 X257 1505 1408 1315 1314 1303 1310 1316 1313 1317 1340 1504 1407 1502 1503 1084 X050 X053 1031 1032 1033 1026 1027 1028 1029 1025 1030 1039 1038 1037 1036 10401041 1010 1009 1008 1007 1006 1005 1012 1011 1070 1069 1068 1067 X013 1078 1004 1074 0914 1101 0941 0907 0906 1114 1122 0913 0908 0901 0915 0916 0919 0909 0910 1116 X224 1051 03 04 27 32 50 51 52 53 54 55 03 04 27 28 13 23 01 41 05 29 35 14 10 07 16 21 11 23 01 35 12 34 31 43 37 56 57 32 50 51 52 53 54 55 14 12 29 43 56 05 57 37 43 11 21 16 10 07 28 DrawingNo.Rev Rev Date Description Drn Contract Client Title Status Drawing No. Scale Checked By Drawn By Engineer Rev A0 Sheet Size Issue Date ChkEng 7 Brown Lane West, Leeds LS12 6EH. Tel: 0113 234 3443 Fax: 0113 234 3410 Signed Signed Copyright in this drawing is the property of NG Bailey IT Services Limited. It must not be reproduced nor amended nor used for the execution of any works whether in conjunction with the proposed works for which it is prepared or otherwise without the express consent of NG Bailey IT Services Ltd. Do not scale from this drawing. TENDER - 25.03.14 RICHARD BIRKS CHRIS HARRISON RICHARD BIRKS EXISTING IT BACKBONE SCHMATIC DRAWING DURHAM RD MULTI STORY CAR PARK CABLE DIVERSIONS THE UNIVERSITY OF SHEFFIELD NTS NGB-ITS033230-SCH-001 NGB-ITS033230-SCH-001
- 12. 29/03/2018 © The University of Sheffield
- 13. 29/03/2018 © The University of Sheffield
- 14. Learning point: Know what you’ve got Know where it is Know what it does Check what you know 29/03/2018 © The University of Sheffield
- 15. 29/03/2018 © The University of Sheffield 1308 1113 0918 1301 0912 0911 1119 1120 1003 1003 1001 1002 1311 1204 1216 1304 1302 1311 1307 1312 1309 1083 X257 1505 1408 1315 1314 1303 1310 1316 1313 1317 1340 1504 1407 1502 1503 1084 X050 X053 1031 1032 1033 1026 1027 1028 1029 1025 1030 1039 1038 1037 1036 10401041 1010 1009 1008 1007 1006 1005 1012 1011 1070 1069 1068 1067 X013 1078 1004 1074 0914 1101 0941 0907 0906 1114 1122 0913 0908 0901 0915 0916 0919 0909 0910 1116 X224 1051 01 23 03 04 27 05 2843 43 14 10 27 04 03 23 03A 04A 27A 32 50 51 52 53 54 55 16 21 11 03A 04A 27A 32 50 51 52 53 54 55 43 37 56 57 32 50 51 52 53 54 55 14 01 12 29 12 29 05 28 56 57 37 43 11 21 16 10 41 DrawingNo.Rev Rev Date Description Drn Contract Client Title Status Drawing No. Scale Checked By Drawn By Engineer Rev A0 Sheet Size Issue Date ChkEng 7 Brown Lane West, Leeds LS12 6EH. Tel: 0113 234 3443 Fax: 0113 234 3410 Signed Signed Copyright in this drawing is the property of NG Bailey IT Services Limited. It must not be reproduced nor amended nor used for the execution of any works whether in conjunction with the proposed works for which it is prepared or otherwise without the express consent of NG Bailey IT Services Ltd. Do not scale from this drawing. TENDER - 25.03.14 RICHARD BIRKS CHRIS HARRISON RICHARD BIRKS PROPOSED IT BACKBONE SCHEMATIC DRAWING DURHAM RD MULTI STORY CAR PARK CABLE DIVERSIONS THE UNIVERSITY OF SHEFFIELD NTS NGB-ITS033230-SCH-002 NGB-ITS033230-SCH-002
- 16. 29/03/2018 © The University of Sheffield
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- 18. The Risks • The state/age of the ducts/cables • Compatibility of old/new glass • Tight signal loss budget spec • We’ll end up with an inferior network • Information inaccurate • We might disconnect large parts of campus for an indeterminate period of time 29/03/2018 © The University of Sheffield
- 19. The Risks • Reduced network resilience during the works – other works delayed • Damage to new infrastructure as the car park is constructed • Reputational impact • Operational/Business impact • Reduction in quality of student (and staff) experience 29/03/2018 © The University of Sheffield
- 20. The Risks • Exam period started in mid-January • The weather – cold • Interim works become a permanent solution • Developments planned elsewhere on campus may shortly supersede these works • Etc, etc, etc…. 29/03/2018 © The University of Sheffield
- 21. Learning points • Senior colleagues might not be as super- intelligent as you’d assume they are • They get a huge amount of info about a wide range of things – assume they have memories like goldfish 29/03/2018 © The University of Sheffield
- 22. • “It’s not what I’d have done” • ”It’s what I’d describe as a ‘high-risk strategy’” • “Are you ******* insane?” 29/03/2018 © The University of Sheffield
- 23. In the meantime….. • Upgrade edge switches, so we can migrate to IP phones, negating the need to worry about the copper multi-pair cables • Install new resilient duct/cable to Medical School, divert STH services via that; greatly reducing risk 29/03/2018 © The University of Sheffield
- 24. In the meantime….. • A new leased connection was installed to the student residences site • Identify other cables that we no longer need; • Rationalise use of cables on matching routes, freeing cables for disposal 29/03/2018 © The University of Sheffield
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- 31. • 30 cables relocated • 13 car park • 17 pavement • 19 new cables across car park • 4 new cables to local buildings • All with 24 cores • 1,944 new splices • 350 new patches • 704 end-to-end links • All affected fibre links have at least two additional connections, many had four, some more 29/03/2018 © The University of Sheffield
- 32. And hardly anyone noticed…... (But.........Crying Wolf?....) 29/03/2018 © The University of Sheffield
- 33. 29/03/2018 © The University of Sheffield
- 34. Key learning points We are all on the same side 29/03/2018 © The University of Sheffield
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- 37. 29/03/2018 © The University of Sheffield