managed dark fiber experiences terena tf-msp: non-technical issues of managed dark fiber, 9-11-2010...
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Managed Dark Fiber Experiences
Terena TF-MSP: Non-technical issues of Managed Dark Fiber, 9-11-2010 Amsterdam
SURFnet - We make innovation work2
Introduction
- Paul Noomen- Service Level Manager Network Services- Managing outsourced NOC, Installation Partner,
Fiber suppliers
- SURFnet – Dutch NREN- 160 connected institutions- 11.000 km Leased Dark Fiber
SURFnet - We make innovation work3
Dark Fiber structure
- Ring structure- Redundant/protected
connections
Dordrecht1
Breda1
Tilburg1
DenHaag
NLR
BT
BT NLR
BT
Zutphen1
Lelystad1
Subnetwork 4: Purple
Subnetwork 3: Red
Subnetwork 1: Green
Subnetwork 2: Dark blue
Subnetwork 5: Grey
Emmeloord
Zwolle1
Venlo1
Enschede1
Groningen1
LeeuwardenHarlingen
Den Helder
Alkmaar1
Haarlem1
Leiden1
Assen1
Beilen1
Meppel1
Emmen1
Arnhem
Apeldoorn1
Bergen-op-ZoomZierikzee
Middelburg
Vlissingen Krabbendijke
Breukelen1
Ede
Heerlen2Geleen1
DLO
Schiphol-Rijk
Wageningen1 Nijmegen1
Hilversum1
Hoogeveen1
Lelystad2
Amsterdam1
Dwingeloo1
Amsterdam2
Den Bosch1
Utrecht1
Beilen1
Nieuwegein1Rotterdam1
Delft1
Heerlen1
Heerlen1
Maastricht1
Eindhoven1
Maasbracht1
Rotterdam4
3XLSOP
IBG1 & IBG2Middenmeer1
SURFnet - We make innovation work4
Acquiring Dark Fiber
- 10+ different suppliers- National & regional
- Cost - Multiple offers – European Law- Cost versus length- TCO = initial cost + maintenance cost- Lease, 15 year IRU
SURFnet - We make innovation work5
Dark fiber database with geographical interface
5
SURFnet - We make innovation work6
Service Management of Dark Fiber
- Availability- Fibercuts- Maintenance
SURFnet - We make innovation work7
Dark Fiber availability
- Availability parameter in many contracts- Always exclude
- Maintenance- Fiber cuts
- Not useful to us- No guarantees to end-customer- Availability fiber is not availability of connection
- Never seen it happen
SURFnet - We make innovation work8
Fiber cuts
- Frequent- Once every year for 400 km fiber
SURFnet - We make innovation work9
Repair time
- Contractual repair time- 8 to 17 hours depending on nr of fibers- Interim solution possible
- Rarely seen
- Actual: multiple factors- Location/access- Complexity- Number of fibers- Skill
- Ca 80% repaired within SLA- Almost always other companies affected
SURFnet - We make innovation work10
Subcontracting
- Fiber suppliers use subcontractors
- Limited number of subcontractors
- Fiber supplies SHARE subcontractors
- In case of multiple fiber cuts: delays
SURFnet - We make innovation work11
Access to locations
- Measurements to locate fault- Outside office hours often a problem
- Especially on city-rings- Move to professional locations (also better facilities)
- Good arrangements with suppliers and locations are necessary
- Administration is essential- Procedures- Phone numbers- Escalation
SURFnet - We make innovation work12
Penalties
- Sounds nice- Little effect
- Multiple companies have fibers in same cable- Suppliers want to minimise financial risk
Escalation
- NOC monitors maintenance and incidents- Maintenance not ready => incident
- Escalation => SURFnet (me )
- P1 reports to be provided by NOC- And suppliers
- If things really go wrong- We invite them for a visit
SURFnet - We make innovation work13
SURFnet - We make innovation work14
Maintenance
- Sometimes fibers are at risk - For example when cutting nearby fiber- Suppliers do not always tell
SURFnet - We make innovation work15
Maintenance planning
- Regular activity- New connections- New fibers/building activities
- When planning: Outages in Maintenance Window- Plan own changes + suppliers maintenance
- May influence each other- Weekly meeting to check planning with NOC and IP- Inform customers in time (5 days)
- Procedure for emergency maintenance
SURFnet - We make innovation work16
Three lessons
1 - many housing locations have limitations- facilities- access
2 - fiber cuts will happen (a lot)- be prepared- be realistic- manage expectations
3 – plan plan plan- new fibers- maintenance- changes
SURFnet - We make innovation work17
Questions?
SURFnet - We make innovation work18
Paul NoomenPaul.Noomen at surfnet.nl
www.surfnet.nl
Presentation released under Creative Commonshttp://creativecommons.org/licenses/by/3.0/