New Nationwide network fiberpaths to all regions Improved redundancy 15 year IRU Possibility to connect customers at ~50 sites (with smaller

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3 New Nationwide network fiberpaths to all regions Improved redundancy 15 year IRU Possibility to connect customers at ~50 sites (with smaller modifications ~80 more) Cross border fibers at: Kiruna-Narvik Luleå-Kemi Malmö-Copenhagen Leased capacity to Gotland (Visby)

4 Fiberplant Core fibers mostly Aerial in high voltage power lines New and old fibers, G.652B some G.652D OTDR and attenuation data delivered as they measured Kmz data Access fiber from city networks Two separate paths to university No KMZ data

5 A (new) way of building networks IP over DWDM (IPoDWDM). Eliminates unnecessary and expensive components => less components that fails Reroute traffic before fail Much lower CAPEX but also lower OPEX Gridless The worlds first nationwide network using this technology

6 Hybrid Raman EDFA Amplifiers Raman at all places with more or equal to 17db span loss Later rebuild of the network might improve on that Gain 9-15dB, depends on fiber and connectors paired with Low Noise EDFA to optimize for high OSNR in preparation for the future, 400G/1T

7 Hardware Spec Juniper 100-Gigabit DWDM OTN FEC Soft-decision FEC (SD-FEC) Acacia, Min OSNR 14.0 db High-gain FEC (Staircase) (HG-FEC) Cortina, Min OSNR 16.0 db G.709 FEC (GFEC), Min OSNR 24 db CFP2-ACO 100 channels on C-band ITU 50GHz spacing Output power -8 through 0 dbm Input power -18 through 0 dbm Chromatic dispersion tolerance: +/ 40,000 ps/nm PMD tolerance: 25 ps (mean) Polarization tracking: 50 krad/s

8 show interfaces transport pm optics current et-0/0/0 Physical interface: et-0/0/0, SNMP ifindex :30-current Suspect Flag:True Reason:Not Applicable PM CURRENT MIN MAX AVG THRESHOLD TCA-ENABLED TCA-RAISED (MIN) (MAX) (MIN) (MAX) (MIN) (MAX) Lane chromatic dispersion(ps/nm) NA NA NA NA Lane differential group delay(ps) NA NA NA NA Lane Q2 factor(0.1db) NA NA NA NA SNR(0.1dB) NA NA NA NA Carrier frequency offset(mhz) No No No No Tx output power(0.01dbm) No No No No Rx input total power(0.01dbm) No No No No Module temperature(celsius) No No No No santa@fre-r1-re0> show interfaces transport pm otn current et-0/0/0physical interface: et-0/0/0, SNMP ifindex 554 FEC Suspect Flag:False Reason:Not Applicable PM COUNT THRESHOLD TCA-ENABLED TCA-RAISED FEC-CorrectedErr NA NA FEC-UncorrectedWords 0 0 NA NA BER Suspect Flag:False Reason:Not Applicable PM MIN MAX AVG THRESHOLD TCA-ENABLED TCA-RAISED BER 9.8e-6 1.2e-5 1.1e-5 1.0e-2 No No santa@fre-r1-re0> show interfaces diagnostics optics et-0/0/0 grep dbm Tx power : mw / 1.00 dbm Rx power (total) : mw / dbm Rx power (signal) : mw / dbm

9 show interfaces transport pm optics current et-0/0/0 Physical interface: et-0/0/0, SNMP ifindex :30-current Suspect Flag:True Reason:Not Applicable PM CURRENT MIN MAX AVG THRESHOLD TCA-ENABLED TCA-RAISED (MIN) (MAX) (MIN) (MAX) (MIN) (MAX) Lane chromatic dispersion(ps/nm) NA NA NA NA Lane differential group delay(ps) NA NA NA NA Lane Q2 factor(0.1db) NA NA NA NA SNR(0.1dB) NA NA NA NA Carrier frequency offset(mhz) No No No No Tx output power(0.01dbm) No No No No Rx input total power(0.01dbm) No No No No Module temperature(celsius) No No No No santa@fre-r1-re0> show interfaces transport pm otn current et-0/0/0physical interface: et-0/0/0, SNMP ifindex 554 FEC Suspect Flag:False Reason:Not Applicable PM COUNT THRESHOLD TCA-ENABLED TCA-RAISED FEC-CorrectedErr NA NA FEC-UncorrectedWords 0 0 NA NA BER Suspect Flag:False Reason:Not Applicable PM MIN MAX AVG THRESHOLD TCA-ENABLED TCA-RAISED BER 9.8e-6 1.2e-5 1.1e-5 1.0e-2 No No santa@fre-r1-re0> show interfaces diagnostics optics et-0/0/0 grep dbm Tx power : mw / 1.00 dbm Rx power (total) : mw / dbm Rx power (signal) : mw / dbm

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11 IRF2 IRF ROADM POP Router University Router Line fiber n x 100G Core 100G Access 10G PTP Trollhättan HV1 HV2 Göteborg Kungsbacka Varla 334 GU1 GU CTH1 CTH Onsala KAU1 KAU2 TRH 48 NSNIQ VLA Nordunet DWDM KKA8 Karlstad Borås Narvik Nordunet DWDM BOS HB1 HB2 HH2 HH1 MIUN3 16 MIUN4 391 DU1 DU Skövde HIS1 HIS KIR Åkroken Östersund DU3 DU BOR10 15 ORU2 ORU SKE109 Alvesta Hjälta OSD FLN4 Ulricehamn LU2 LBA ULR5 LU1 10 Falun KIR3 36 AJR1 SEA1 Kiruna Luleå Umeå Gävle Uppsala Borlänge MDH2 MDH FSN2 Västerås AVA3 ETA10 MDH4 MDH3 UME8 SVA SBO UPA Eskilstuna HJ HJ2 JKG Jönköping VXJ LNU1 LNU2 LTU1 LTU LLA1 Växjö Kalix Sundsvall Stockholm FRE LIU2 LIU LIN3 MIUN2 42 KLX1 UMU2 UMU1 315 MIUN1 HIG2 HIG UU2 UU Linköping Kalmar NKG188 TUG Norrköping 357 LNU3 LNU4 KTH1 KTH2 SU1 KI1 SU2 KI2 SH1 SH2 Optical Design ROADM site in each University city Four pure ROADM sites where no traffic are dropped Interconnection with NORDUnet NORDUnet connection that bypass Norway to improve redundancy ESS connectivity to Copenhagen South of Sweden only has two paths Connecting Malmö Stockholm over Nordunet, 100G transponder or Coherent Sunet Aerial, NORDUnet in the ground 25 Halmstad HSD1 50 Nordunet DWDM 26 Lund LND88 MAH2 MAH1 44 HKR2 HKR1 Karlskrona KMR88 31 KKA BTH1 BTH Köpenhamn Nordunet DWDM 49 MCEN1 Malmö 32 KSD1 Kristianstad 33

12 IRF2 IRF1 ROADM POP Router University Router Line fiber n x 100G Core 100G Access 10G PTP Narvik MIUN3 106 MIUN4 DU1 DU2 316 DU3 DU4 KIR5 Åkroken Östersund Hjälta OSD FLN4 103 Falun KIR3 102 AJR SEA1 Kiruna Luleå Umeå UME8 SVA Gävle SBO LTU1 LTU2 Uppsala Borlänge LLA Kalix KLX1 UMU2 UMU1 MIUN2 MIUN1 Sundsvall HIG2 HIG1 UU2 UU1 Router Design Routers interconnected via 100G Coherent interfaces Option to run the links hotter Reroute the coherent waves around the link failure. NMS needs to talk to the Juniper interface to change the wavelength if needed. KAU1 KAU2 BOR ORU2 ORU MDH2 MDH1 UPA Stockholm KTH1 KTH2 Trollhättan HV1 HV2 119 TRH KKA8 Karlstad Skövde HIS1 HIS2 116 SKE109 LBA FSN2 Västerås 118 ETA10 Eskilstuna 128 FRE TUG SU1 KI1 SH1 SU2 KI2 SH2 GU1 GU2 CTH1 CTH2 Göteborg Onsala1 Kungsbacka Varla NSNIQ 124 VLA 123 Borås BOS HB1 HB2 HH2 HH1 ULR5 Ulricehamn Alvesta LU2 LU1 125 MDH4 MDH3 131 HJ1 AVA3 127 HJ2 JKG 126 Jönköping VXJ LNU1 LNU2 LIU2 LIU1 Växjö 130 LIN3 140 Linköping Kalmar NKG188 Norrköping LNU3 LNU4 Halmstad HSD1 136 Lund 135 LND88 Karlskrona KMR BTH1 BTH2 MAH2 MAH1 HKR2 HKR1 KKA8 133 Köpenhamn MCEN1 Malmö 134 KSD1 Kristianstad

13 ROADM POP Router University Router Line fiber n x 100G Core 100G Access 10G PTP Trollhättan HV1 HV2 GU1 GU2 CTH1 CTH2 Göteborg Onsala1 Kungsbacka Varla 342 KAU1 KAU2 119 Halmstad Köpenhamn Karlstad Borås Narvik 106 Skövde Åkroken Östersund Alvesta Lund Malmö Hjälta BOR ORU2 ORU1 Ulricehamn TRH NSNIQ VLA 123 KKA8 BOS HB1 HB2 HH2 HH1 HSD1 MIUN3 MIUN4 402 DU1 DU DU3 DU HIS1 HIS2 401 KIR5 SKE109 LU2 MCEN1 OSD FLN4 LBA ULR5 LU1 135 LND88 Falun Kiruna Luleå Umeå Gävle Uppsala Borlänge 125 KIR3 117 Västerås 118 ETA AVA3 MAH2 MAH1 AJR1 100 SEA1 MDH2 MDH IRF2 FSN2 Eskilstuna 407 HJ1 407 MDH4 MDH3 127 HJ2 134 IRF1 JKG UME8 SVA SBO UPA Jönköping VXJ LNU1 LNU2 LTU1 LTU2 KSD1 Växjö 130 HKR2 HKR1 LLA1 Kalix Sundsvall Stockholm 128 Karlskrona Kristianstad FRE LIU2 LIU1 LIN3 MIUN KLX1 UMU2 UMU1 UU2 UU Linköping Kalmar KMR88 KKA8 MIUN1 HIG2 HIG NKG188 TUG Norrköping LNU3 LNU4 BTH1 BTH2 KTH1 KTH2 SU1 KI1 SU2 KI2 SH1 SH2 ROADM Design Uni. POP Router Hjälta University Router Connected Line fiber via ER4/LR4 Coherent n x 100G Core interface to the next Östersund 100G Access MIUN3 MIUN4 402 city/pop 10G PTP OSD DU1 DU2 In Stockholm, Göteborg405and Luleå 404 Two routers at the PoP FLN4 316 DU3 DU4 LR4 on both links to the University 404 Trollhättan HV1 GU1 HV2 GU2 CTH1 CTH2 Göteborg Onsala1 342 KAU1 KAU2 119 Karlstad Borås Skövde BOR ORU2 ORU TRH NSNIQ KKA HB1 HB2 HIS1 BOS HIS SKE109 LBA ULR5 Ulricehamn Falun AJR1 110 SEA1 Umeå Gävle Uppsala Borlänge MDH2 MDH FSN2 117 Västerås 118 ETA10 Eskilstuna 407 HJ1 407 MDH4 MDH3 127 HJ2 JKG UME8 SVA SBO UPA Jönköping VXJ LIU2 LLA1 Växjö Kalix Sundsvall Stockholm 128 FRE LIU1 LIN3 UU2 137 UU1 KLX1 UMU2 UMU1 MIUN2 MIUN HIG2 HIG NK Linköping 1

14 Local loop 1-8dB University Högskolenod Typ A 3 gridless coherent portar expantion Option 10x10GE Muxponder Högskola Svartfiber till Stam LR4 MX480 Högskolenod Typ B 3 gridless coherent portar expantion Option 10x10GE Muxponder Svartfiber till Stam 100G Cohernet MX480 Type A One LR4 with option to for 3-4 coherent waves Preferable passive equipment Option can require PoP rebuild. Type B One Coherent 100G Juniper interface Need to be able to from 3-4 extra coherent waves without and extra equipment No fixed filters Preferable passive combiners/splitters

15 Managing the network The Transport NMS from ADVA controls the Juniper DWDM interface Wavelength Output power Alarm Correlation and Monitoring Using GMPLS for setting up waves

16 Managing the network NSO4 (from Tail-F) Controls the Juniper routers directly ADVA NMS controls optical equipment 2017 IP Management NSO4 ADVA Transport Management TransportDCN DWDM DWDM Juniper MX ADVA FSP3000 ADVA FSP3000 Juniper MX SNMP R/W SNMP R NETCONF Circuit

17 Currently rolling out the new network The Core network will be completed end of the month Access and migrating of customers completed by end of October

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