1. SANReN National Network CSIRUnisa WITS Reef Head Shark Head Bell Head CHPC Durban Johannesburg Pretoria Cape Town National 10Gbps WDM SANReN 40Gbps WDM Bree Head IS International BW: 2x STM-1 SEACOM International BW: STM-64 Beach Head IS International BW: 1x STM-1

2. SANReN Pretoria

3. Unisa Main (λ2)‏ TUT Main (λ3)‏ CSIR UP Main (λ1)‏ UP Mamelodi UP Onderstepoort UL Medunsa UP Medical Nat. Library Unisa Sunnyside UP Groenkloof UP Sport Johannesburg Durban SANReN 30Gbps WDM Ring SANReN 40Gbps WDM SANReN 10Gbps WDM Link to National National 10Gbps WDM SANReN 10Gbps local (grey) ring #1 Pair 1 Pair 2 SAC SANReN 10Gbps managed link to HartRAO/SAC (Telkom)‏ Cisco 4924 Cisco ONS Cisco WXC National NRFLaser Centre Grey ring #2

4. SANReN Pretoria 30 Gbps DWDM ring connecting: – CSIR (Primary Core)‏ – Unisa Main (Secondary Core)‏ – UP Main (Primary client site)‏ – TUT Main (Primary client site)‏ 10 Gbps Grey ring #1 connecting secondary client sites – 5x UP – 1x Unisa – 3x TUT – 1x UL – Other TENET sites 10 Gbps Grey ring #2 connecting CSIR campus sites – NRF – National Laser Centre 10 Gbps link to SAC (Hartbeeshoek): Telkom link 10 Gbps link for CSIR 10 Gbps link for CHPC C4 supercomputer 40 Gbps DWDM link to Johannesburg 10 Gbps DWDM link to Durban (National core provider)‏ 10 Gbps PE-PE link

5. Pretoria CSIR Cisco WXC λ7 E WDM Ring Shelf 2 (South)‏WDM Ring Shelf 1 (North)‏ WDM Link to WITS Shelf 3 (East)‏ 10 Gbps Grey Ring #1 40 Channel WDM Filter WDM Link to Durban Shelf 4 λ6 E λ8 E λ9 E λ1 S λ1 N λ2 S λ5 S λ6 S λ7 S 10Gbps SAC 10Gbps CSIR P1 Xponders 1-3 WSX East WSX West Cisco 7609 Cisco CRS-1 λ3 S λ2 N λ3 N 8-10GBE WDM Ring protection from Unisa 7609 Grey ring protection from Unisa 7609 WSX South λ3 PE-Core Link Durban National Link 6708 10 Gbps Grey Ring #2 10Gbps C4 λ4 S P2P5P6 P1P2P5P6P1P2P5P6 6708#1 6708#36708#4 P1P2 P1P2 ES20#1 ES20#2 P1P2P5P6P1P2P5P6 P1P2P3P4P1P2P3P4P1P2P3P4 8-10GBE#1 8-10GBE#2 RODAN#1RODAN#2RODAN#3 λ1 W λ2 λ1 WDM Link to Johannesburg Line to DurbanLine to WitsLine to UnisaLine to UP 13579101112131415 19202122 18 2425262728293031 3233 λ8 S λ8 N P1P2P5P6 6708#2ES20#1 10 Gbps 4924 PE-PE link 1617 23

6. 1. λ1 (UP traffic)‏ 3. λ2 (Unisa traffic)‏ 5. λ3 (TUT traffic)‏ 7. PE-PE Link 9-11. WDM ring traffic from backup 7609 at Unisa in case CSIR 7609 fails 12. Grey ring#1 traffic from backup 7609 at Unisa in case CSIR 7609 fails 13-16. WDM link to Johannesburg (Reefhead)‏ 17. WDM link to Durban (National)‏ 18. C4 link 19. CSIR link 20. Link to 4924 for 1Gbps connections 21. SAC link (Telkom)‏ 22. Grey ring #1 West 23. Grey ring #2 West 24. Grey ring #1 traffic PE-Core (7609-CRS)‏ 25. Grey ring #2 traffic PE-Core 26. λ1 (UP) traffic PE-Core 27. λ2 (Unisa) traffic PE-Core 28. λ3 (TUT) traffic PE-Core 29. C4 traffic PE-Core 30. CSIR traffic PE-Core 31. SAC traffic PE-Core 32. Grey ring #1 East 33. Grey ring #2 East CSIR Connections

7. Pretoria CSIR Cisco 7609 PE Router – 2x dual port ES20 10 Gbps cards 4 ports for Grey rings #1 & #2 – 4x octal 6708 cards 8 ports for PE-CRS traffic 3 ports for DWDM ring (3 East, 3 West)‏ 1 port for C4 link 1 port for SAC link (Telkom)‏ 1 port for CSIR traffic 1 port for PE-PE link 1 port to 4924 for 1Gbps connections Cisco CRS-1 Core Router – 2x 8-10GBE cards 8 ports for PE-CRS traffic – 3x RODAN cards with coloured optics 3 ports for traffic from backup 7609 at Unisa 4 ports for DWDM link to Johannesburg 1 port for Grey ring traffic from backup 7609 at Unisa 1 port for DWDM link to Durban

8. Pretoria CSIR Cisco WXC wavelength cross-connect – 4x dual port Xponder cards – Because of Xponder Layer2 functionality, only one tributary port per ring is required – 3 ports for DWDM ring (λ1-λ3)‏ – 1 port PE-PE link (λ8)‏ – 9 Ports on wavelength cross connect (WSX)‏ – 4 ports for backup traffic from Unisa 7609 (λ4S-λ7S)‏ – 4 ports for DWDM link to Johannesburg (λ6E-λ9E)‏ – 1 port for DWDM link to Durban (λ1W)‏

9. Pretoria Unisa Cisco ONS 10 Gbps Grey Ring 32 Channel WDM Filter λ1 W 10Gbps Unisa Xponders 1-6 Cisco 7609 Grey Ring traffic to CRS Shelf 1 Line to CSIRLine to TUT λ1 E λ2 W λ2 E λ3 W λ3 E λ4 E λ5 E λ6 E λ7 E P1P2P5P6 6708#1 P1P2P5P6 6708#2 P1P2P1P2 ES20#1ES20#2 WDM Ring protection to CRS λ3λ2λ1 λ8 W λ8 E PE-PE link

10. Pretoria Unisa Cisco 7609 PE Router – 2x octal port 6708 cards 3 ports for DWDM ring traffic 3 ports for WDM ring traffic backup to CRS (in case CSIR 7609 fails)‏ 1 port for Grey ring backup to CRS 1 port for PE-PE link – 2x dual port ES20 cards 2 ports for Grey ring 1 port for Unisa traffic Cisco ONS DWDM node – 5x dual port Xponder cards 3 ports (3 cards) for DWDM ring traffic 4 ports (2 cards) for backup traffic to CRS 1 port (1 card) for PE-PE link

11. Pretoria UP Cisco ONS UP Network 32 Channel WDM Filter λ1 W λ1 E Shelf 1 Line to CSIRLine to Unisa via TUT

12. Pretoria TUT Cisco ONS TUT Network 32 Channel WDM Filter λ3 W λ3 E Shelf 1 Line to Unisa Line to CSIR via UP

13. National Provider PoP Pretoria SANReN Cisco 15454 ONS λ1 xPponder 1 TUT Firewall 40 Channel WDM Mux/Demux National Provider WDM Terminal λ1 Transponder X WDM Link to Durban Shelf 1 Line to CSIR

14. Scenario 1 Pretoria fibre at Wits SANReN Johannesburg

15. 2x Ubuntunet 1Gbps SANReN Johannesburg WITS Main (λ1)‏ Pretoria CSIR National Cape Town CHPC UJ Kingsway (λ2)‏ JINX 1Gbps IS 10Gbps Reefhead CSIR Mining CSIR Services WITS Med SANReN 10Gbps local (grey) ring SANReN 30Gbps DWDM Ring SANReN 40Gbps DWDM Cisco 4924 Cisco ONS Cisco WXC SANReN 10Gbps DWDM Link to National WITS Bus UJ Bunting UJ Doorn WITS Edu Neotel 1Gbps Scenario 1: Pretoria fibre at Wits HartRAO Telkom 10 Gbps (λ10)‏

16. SANReN Johannesburg 30 Gbps DWDM ring connecting : – Reefhead (Primary Core)‏ – Wits Main (Secondary Core)‏ – UJ Kingsway (primary client site)‏ 10 Gbps connection to HartRAO (Telkom)‏ 10 Gbps Grey ring connecting secondary client sites – 3 Wits – 2 UJ – 2 CSIR 40 Gbps DWDM link to Pretoria (CSIR)‏ 10 Gbps DWDM link to Cape Town (National core provider)‏ 10 Gbps connection to IS 1 Gbps connections at Reefhead – 2x Ubuntunet – 1x Neotel – 1x Jinx

17. 1Gbps Neotel Johannesburg Reef Head Cisco WXC 10 Gbps Grey Ring 10Gbps IS 1Gbps JINX 6708#2 Cisco 7609 Cisco CRS-1 P1 6708#3 WDM ring protection from Wits 7609 Grey ring traffic from Wits 7609 Link to Cape Town λ1 PE-Core Link WS 6724 1Gbps Ubuntunet Scenario 1: Pretoria fibre at Wits Link to HartRAO (Wits)‏ 7200 WDM Ring Shelf 1 (East)‏ 1 λ1 W λ1 E λ2 W λ2 E λ10 W λ10 E Xponders 1-4 WDM Ring Shelf 2 (West)‏ λ3 W λ4 W λ5 W λ1 S WDM To Cape Town Shelf 3 (South)‏ λ6 W λ7 W λ8 W λ9 W P2P5P6 6708#2 P1P2P5P6 6708#1 6708#2 P1P2P1P2 ES20#2 ES20#1 P1P2P5P6 6708#3 P1P2P3P4P5P6P7P8 WS6724 6708#2 P1P2P3P4 8-10GBE#1 P1P2P3P4 8-10GBE#2 P1P2P3P4 RODAN#1 P1P2P3P4 RODAN#2 λ2 Link to Pretoria 1357892710111213 14151617181920 21 2223242526 WSX ports 3-9 Line to UJLine to WitsLine to Cape Town λ11 W λ11 E 28 PE-PE

18. 1. λ1 (Wits traffic)‏ 3. λ2 (UJ Traffic)‏ 5. λ10 (HartRAO traffic)‏ 7-8. WDM ring traffic from backup 7609 at Wits in case Reefhead 7609 fails 9. Grey ring traffic from backup 7609 at Wits in case Reefhead 7609 fails 10-13. WDM link to Pretoria (CSIR)‏ 14. Connection to TENET 7200 router 15. λ1 (Unisa) traffic PE-Core (7609-CRS)‏ 16. λ2 (UJ) traffic PE-Core 17. Grey ring traffic PE-Core 18. Grey ring West (NDF)‏ 19. Internet Solutions Peering 20. Grey ring East (CSIR Mining)‏ 21. IS peering traffic PE-Core 22. Other traffic PE-Core (International, JINX, Neotel)‏ 23. Link#1 to UbuntuNet router for International 24. Link#2 to UbuntuNet router for International 25. JINX Peering 26. Neotel GEN3 link 27. WDM link to Cape Town (National)‏ 28. Layer 3 PE-PE link Reefhead Connections

19. Johannesburg Reefhead Cisco 7609 PE Router – 2x dual port ES20 10 Gbps cards 2 ports for Grey ring 1 port for IS peering link – 3x octal 6708 cards 5 ports for PE-CRS traffic 2 ports for DWDM ring (2 East, 2 West)‏ 1 port for PE-PE ring – 1x octal WS6724 1Gbps Card 2 ports for UbuntuNet links (International traffic)‏ 1 port for Johannesburg Internet Exchange link (JINX)‏ 1 port for Neotel Link (TENET GEN3)‏ Cisco CRS-1 Core Router – 2x octal 8-10GBE cards 5 ports for PE-CRS traffic 1 port for Link to HartRAO (via Wits)‏ – 2x quad RODAN cards with coloured optics 2 ports for WDM traffic from backup 7609 at Wits 1 port for Grey ring traffic from backup 7609 at Wits 4 ports for DWDM link to Pretoria (CSIR)‏ 1 port for DWDM link to Cape Town

20. Johannesburg Reefhead Cisco ONS Wavelength Cross-Connect – 4x dual port Xponder cards: Because of Xponder Layer2 functionality, only one tributary port per ring is required 2 ports for DWDM ring (λ1-λ2)‏ 1 port for HartRAO link (via Wits: λ10 )‏ 1 port for PE-PE ring (λ11)‏ – 8 Ports on wavelength cross connect 2 ports for WDM ring backup traffic from 7609 (λ3W-λ4W)‏ 1 port for Grey ring traffic backup from 7609 (λ5W)‏ 4 ports for DWDM link to Pretoria (λ6W-λ9W)‏ 1 port for DWDM link to Cape Town (λ1E)‏

21. Johannesburg Wits Cisco WXC WDM Ring West (Shelf 2)‏ 10 Gbps Grey Ring 32 Channel WDM Filter λ1 W 10Gbps WITS P1 Cisco 7609 WDM ring protection to CRS Grey ring protection to CRS Scenario 1: Pretoria fibre at Wits 10Gbps HartRAO (Telkom)‏ Xponders 1-4 HartRAO- Reefhead λ1 E λ2 W λ2 E λ10 W λ10 E λ3 E λ4 E λ5 E WDM Ring East (Shelf 1)‏ Xponders 5-6 P2P5P6 6708#2 P1P2P5P6 6708#1 P1P2P1P2 ES20#1 λ1 λ2 Line to UJ Line to Reefhead ES20#2 λ11 W λ11 E PE-PE 32 Channel WDM Filter λ6 S λ7 S λ8 S λ9 S WDM Ring South (Shelf 3)‏ Optical pass-though to Reefhead Line to Pretoria

22. Johannesburg WITS Cisco 7609 PE Router – 2x octal port 6708 cards 2 ports for DWDM ring traffic 3 ports for backup traffic to CRS (in case Reefhead 7609 fails)‏ 1 port for HartRAO traffic to CRS 1 port for HartRAO traffic from Telkom mux 1 port for PE-PE ring – 2x dual port ES20 cards 2 ports for Grey ring 1 port for Wits traffic Cisco WXC DWDM node – 6x dual port Xponder cards 2 ports (2 cards) for DWDM ring traffic 3 ports (2 cards) for backup traffic to CRS 1 port (1 card) for HartRAO traffic to Reefhead 1 port (1 card) for PE-PE ring – 4 wavelengths on WSX used for optical pass-through traffic: Reefhead-CSIR

23. Scenario 2 Pretoria fibre at the Reefhead SANReN Johannesburg

24. 2x Ubuntunet 1Gbps SANReN Johannesburg WITS Main (λ1)‏ Pretoria CSIR National Cape Town CHPC UJ Kingsway (λ2)‏ JINX 1Gbps IS 10Gbps Reefhead CSIR Mining CSIR Services WITS Med SANReN 10Gbps local (grey) ring SANReN 30Gbps DWDM Ring SANReN 40Gbps DWDM Cisco 4924 Cisco ONS Cisco WXC SANReN 10Gbps DWDM Link to National WITS Bus UJ Bunting UJ Doorn WITS Edu Neotel 1Gbps Scenario 2: Pretoria fibre at Reefhead HartRAO Telkom 10 Gbps (λ10)‏

25. SANReN Johannesburg 20 Gbps DWDM ring connecting : – Reefhead Primary Core – WITS Secondary Core – UJ Kingsway Primary client site 10 Gbps connection to HartRAO (Telkom)‏ 10 Gbps Grey ring connecting secondary client sites – 3 Wits – 2 UJ – 2 CSIR 40 Gbps DWDM link to Pretoria (CSIR)‏ 10 Gbps DWDM link to Cape Town (National core provider)‏ 10 Gbps connection to IS 1 Gbps connections at Reefhead – 2x Ubuntunet – 1x Neotel – 1x JINX

26. 1Gbps Neotel Johannesburg Reef Head Cisco WXC 10 Gbps Grey Ring 10Gbps IS 1Gbps JINX 6708#2 Cisco 7609 Cisco CRS-1 P1 6708#3 WDM ring protection from Wits 7609 Grey ring traffic from Wits 7609 Link to CHPC λ1 PE-Core Link WS 6724 1Gbps Ubuntunet Scenario 2: Pretoria fibre at Reefhead Link to HartRAO (Wits)‏ 7200 WDM Ring Shelf 1 (East)‏ 1 λ1 W λ1 E λ2 W λ2 E λ10 W λ10 E Xponders 1-4 WDM Ring Shelf 2 (West)‏ λ3 W λ4 W λ5 W λ1 S WDM To Cape Town Shelf 3 (South)‏ λ6 N λ7 N λ8 N λ9 N WDM To Pretoria Shelf 4 (North)‏ P2P5P6 6708#2 P1P2P5P6 6708#1 6708#2 P1P2P1P2 ES20#2 ES20#1 P1P2P5P6 6708#3 P1P2P3P4P5P6P7P8 WS6724 6708#2 P1P2P3P4 8-10GBE#1 P1P2P3P4 8-10GBE#2 P1P2P3P4 RODAN#1 P1P2P3P4 RODAN#2 λ2 Link to Pretoria 1357892710111213 14151617181920 21 2223242526 Line to WitsLine to UJLine to Pretoria (CSIR)‏Line to Cape Town λ11 W λ11 E 28

27. 1. λ1 (Wits traffic)‏ 3. λ2 (UJ traffic)‏ 5. λ10 (HartRAO traffic)‏ 7-8. WDM ring traffic from backup 7609 at Wits in case Reefhead 7609 fails 9. Grey ring traffic from backup 7609 at Wits in case Reefhead 7609 fails 10-13. WDM link to Pretoria (CSIR)‏ 14. Connection to TENET 7200 router 15. λ1 (Wits) traffic PE-Core (7609-CRS)‏ 16. λ2 (UJ) traffic PE-Core 17. Grey ring traffic PE-Core 18. Grey ring West (NDF)‏ 19. Internet Solutions Peering 20. Grey ring East (CSIR Mining)‏ 21. IS peering traffic PE-Core 22. Other traffic PE-Core (International, JINX, Neotel)‏ 23. Link#1 to UbuntuNet router for International 24. Link#2 to UbuntuNet router for International 25. JINX Peering 26. Neotel GEN3 link 27. WDM link to Cape Town (National)‏ 28. Layer 3 PE-PE link ( λ11)‏ Reefhead Connections

28. Johannesburg Reefhead Cisco 7609 PE Router – 2x dual port ES20 10 Gbps cards 2 ports for Grey ring 1 port for IS peering link – 3x octal 6708 cards 5 ports for PE-CRS traffic 2 ports for DWDM ring 1 port to TENET 7200 router 1 port for PE-PE ring Cisco CRS-1 Core Router – 2x octal 8-10GBE cards 5 ports for PE-CRS traffic 1 port for HartRAO link (via Wits)‏ – 2x quad RODAN cards with coloured optics 2 ports for WDM ring traffic from backup 7609 at Wits 1 port for Grey ring traffic from backup 7609 at Wits 4 ports for DWDM link to Pretoria (CSIR)‏ 1 port for DWDM link to Cape Town

29. Johannesburg Reefhead Cisco WSX Optical Cross Connect – 4x dual port Xponder cards 2 ports for DWDM ring (λ1-λ2)‏ 1 port for HartRAO link (λ10)‏ 1 port for PE-PE ring (λ11)‏ – 8 Ports on wavelength cross connect (WSX)‏ 2 ports for WDM ring backup traffic from 7609 (λ3W-λ4W)‏ 1 port for Grey ring traffic backup from 7609 (λ5W) 1 port for DWDM link to Cape Town (λ1E)‏ 4 ports DWDM link to Pretoria (λ6S-λ9S)‏

30. Johannesburg Wits Cisco WXC WDM Ring West (Shelf 2)‏ 10 Gbps Grey Ring 32 Channel WDM Filter λ1 W 10Gbps WITS P1 Cisco 7609 WDM ring protection to CRS Grey ring protection to CRS Scenario 2: Pretoria fibre at Reefhead 10Gbps HartRAO (Telkom)‏ Xponders 1-4 HartRAO- Reefhead λ1 E λ2 W λ2 E λ10 W λ10 E λ3 E λ4 E λ5 E WDM Ring East (Shelf 1)‏ Xponders 5-6 P2P5P6 6708#2 P1P2P5P6 6708#1 P1P2P1P2 ES20#1 λ1 λ2 Line to UJ Line to Reefhead ES20#2 λ11 W λ11 E PE-PE

31. Johannesburg WITS Cisco 7609 PE Router – 2x octal port 6708 cards 2 ports for DWDM ring traffic 3 ports for backup traffic to CRS (in case CSIR 7609 fails)‏ 1 port for HartRAO traffic to Reefhead CRS 1 port for HartRAO traffic from Telkom mux 1 port for PE-PE ring – 2x dual port ES20 cards 2 ports for Grey ring 1 port for WITS traffic Cisco ONS DWDM node – 6x dual port Xponder cards 2 ports for DWDM ring traffic 3 ports (2 cards) for backup traffic to CRS 1 port (1 card) for HartRAO traffic to Reefhead 1 port (1 card) for PE-PE ring

32. Johannesburg UJ (Kingsway) Cisco ONS UJ Network 32 Channel WDM Filter λ2 W λ2 E Line to WitsLine to Reefhead

33. National Provider PoP Johannesburg SANReN Cisco 15454 ONS λ1 xPponder 1 TUT Firewall 40 Channel WDM Mux/Demux National Provider WDM Terminal λ1 Transponder X WDM Link to Cape Town Line to Reefhead

34. SANReN Durban

35. Sharkhead (Durban) National Cape Town Beachhead Pretoria CSIR UZulu ManTech DUT Sultan UKZN National 10Gbps WDM: Pretoria-Sharkhead SANReN 20Gbps WDM Ring Cisco 4924 Cisco ONS Cisco WXC SANReN 10Gbps local (grey) ring #1 SEACOM International BW Beachhead (Mtunzini)‏ DUT Biko National 10Gbps WDM: Cape Town-Sharkhead 10Gbps WDM Ring: Seacom BW ringed to Sharkhead SANReN 10Gbps local (grey) ring #2

36. SANReN Durban 20 Gbps DWDM ring connecting: – Sharkhead CSIR (Primary Core)‏ – Beachhead Mtunzini (Secondary Core)‏ – National backbone node 10 Gbps Grey ring#1 connecting secondary client sites – UKZN – Mantech – UZulu – CSIR 10 Gbps Grey ring#2 connecting secondary client sites – 2x DUT 10 Gbps DWDM link to Pretoria (National core provider)‏ 10 Gbps DWDM link to Cape Town (National core provider)‏ 10 Gbps Seacom link between Mtunzini and London

37. Durban Sharkhead Cisco ONS Link to National (Cape Town)‏ 10 Gbps Grey Ring#1 32 Channel WDM Filter λ1 E λ2 W 10Gbps Grey Ring#2 P1 Cisco 7609 Cisco CRS-1 Link to National (Pretoria)‏ 6708 PE-Core Link λ1 W Xponder 1 λ2 E Xponder 2 West Link to Beachhead (SEACOM)‏ East Link to Beachhead (SEACOM)‏ Line to National Line to Beachhead P1P5P6P1P2P1P2 ES20#1 ES20#2 P1P2P3P4P1P2P3P4 8-10GB#1 8-10GB#2

38. Durban Sharkhead Cisco 7609 PE Router – 2x dual port ES20 10 Gbps cards 2 ports for Grey ring 1 port for CSIR link 1 port for UKZN link – 2x octal 6708 cards 2 ports for PE-CRS traffic Cisco CRS-1 Core Router – 2x 8-10GBE cards 2 ports for PE-CRS traffic 1 port for DWDM link to Cape Town 1 port for DWDM link to Pretoria 2 ports for DWDM ring to Mtunzini for Seacom Bandwidth

39. Durban Sharkhead Cisco ONS Optical Network Switch – 2x dual port Xponder cards 2 ports for DWDM ring to Mtunzini (Seacom)‏ 1 port for DWDM link to Pretoria (via Mtunzini & National)‏ 1 port for DWDM link to Cape Town (via National)‏

40. Beachhead (Mtunzini) Cisco ONS Link to National (Pretoria)‏ P1P2P3P4P1P2P3P4 32 Channel WDM Filter λ1 E λ1 W 6708#2 P2P1 ES20 P1P2P3P4 Cisco 7609 6708#1 10Gbps SEACOM λ2 W Xponder 1 λ2 E Xponder 2 Link to Sharkhead (W): SEACOM Link to Sharkhead (E): SEACOM Line to SharkheadLine to National

41. Beachhead (Mtunzini) Cisco 7609 PE Router – 1x dual port ES20 card Seacom International 10Gbps link – 2x octal 6708 cards 2 ports for WDM ring traffic to Sharkhead Cisco ONS Optical Network Switch – 2x dual port Xponder cards 2 ports for DWDM ring to Sharkhead (Seacom traffic)‏ 2 ports for DWDM link to Pretoria (via National)‏

42. Durban National Provider PoP SANReN Cisco ONS TUT Firewall 40 Channel WDM Mux/Demux National Provider WDM Terminal λ1 Transponder 1 λ1 Transponder 2 λ1 N λ1 W λ2 W λ2 N Xponder 1 Xponder 2 SEACOM Link Line to BeachheadLine to Sharkhead Line to Pretoria Line to Cape Town

43. SANReN Cape Town

44. National CHPCUCT Main (λ3)‏ CPUT CT (λ1)‏ CPUT BV (λ1)‏UWC Main (λ2)‏ National US Main CPUT Tygerberg US Tygerberg US Business MRC iThemba DurbanJohannesburg Bellhead SANReN 10Gbps local (grey) rings SANReN 30Gbps WDM ring National 10Gbps WDM ring SANReN 10Gbps WDM National Links CPUT GS CPUT MB TENET/CHEC Cisco 4924 Cisco ONS Cisco WXC Bree Head IS International BW 2x STM-1 TENET GEN3 Connection UCT Buss.

45. SANReN Cape Town 30 Gbps DWDM ring connecting: – CHPC CSIR (Primary Core)‏ – Bellhead (Secondary Core)‏ – 2x CPUT (Primary client site)‏ – 1x UCT (Primary client site)‏ – 1x UWC (Primary client site)‏ 3x 10 Gbps Grey ring connecting secondary client sites – 15 secondary client sites 10 Gbps DWDM link to Johannesburg (National core provider)‏ 10 Gbps DWDM link to Durban (National core provider)‏ 10 Gbps International link to TENET Breehead (GEN3)‏

46. Cape Town CHPC Cisco WXC 10 Gbps Grey Ring #1 40 Channel WDM Filter λ1 W 10Gbps CHPC C4 WSX North Cisco 7609 Cisco CRS-1 Grey Ring 2 Xponders 1-3 WSS East Grey Ring 1 Grey Ring 3 WDM ring protection from Bellhead 7609 10Gbps Neotel GEN3 WDM Ring Shelf 1 (West)‏ PE-Core Link λ1 E λ2 W λ2 E λ3 W λ3 E λ4 E λ5 E λ6 E λ7 E λ8 E λ9 E WDM Ring Shelf 2 (East)‏ λ1 N WSX East Ports 4-9 National Shelf 3 (North)‏ P1P2P5P6 6708#1 P1P2P5P6 6708#2 P1P2P5P6 6708#3 P1P2P1P2 ES20#1 ES20#2 P1P2P3P4 8-10GBE#1 P1P2P3P4 8-10GBE#2 P1P2P3P4P1P2P3P4 RODAN#1RODAN#2 Line to UCTLine to UWCLine to Johannesburg 1 3 57910111213 1718192021 22232425 Grey Ring Protection λ10 E Link to Durban λ11 W λ11 E λ1 λ2 λ3 PE-PE link 141516 26

47. 1. λ1 (CPUT traffic)‏ 3. λ2 (UWC traffic)‏ 5. λ3 (UCT traffic)‏ 7. λ11 PE-PE link 9. Grey ring#1 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 10. Grey ring#2 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 11. Grey ring#3 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 12-14. WDM ring traffic from backup 7609 at Bellhead in case CHPC 7609 fails 15. Link to National (Durban via Bellhead)‏ 16. Link to National (Johannesburg)‏ 17. λ1 (CPUT) traffic PE-Core (7609-CRS)‏ 18. Grey ring#1 (West)‏ 19. C4 link 20. Grey ring#1 (East)‏ 21. Neotel GEN3 link 22. λ2 (UWC) traffic PE-Core 23. λ3 (UCT) traffic PE-Core 24. Grey ring#1 traffic PE-Core 25. C4 traffic PE-Core 26. Neotel GEN3 traffic PE-Core CHPC Connections

48. Cape Town CHPC Cisco 7609 PE Router – 2x dual port ES20 10 Gbps cards 2 ports for Grey ring #1 – 3x octal 6708 cards 6 ports for PE-CRS traffic 3 ports for DWDM ring 1 port for Neotel GEN3 link to Breehead 1 port for CHPC C4 traffic 1 port for PE-PE link Cisco CRS-1 Core Router – 2x 8-10GBE cards 6 ports for PE-CRS traffic – 2x RODAN cards with coloured optics 3 ports for backup WDM ring traffic from 7609 at Bellhead 3 ports for backup gray ring traffic from 7609 at Bellhead 1 port for DWDM link to Johannesburg (National provider)‏ 1 port for DWDM link to Bellhead (Durban national traffic)‏

49. Cape Town CHPC Cisco WXC wavelength cross-connect – 3x dual port Xponder cards – 3 ports for DWDM ring (λ1-λ3)‏ – 1 port for PE-PE ring (λ11)‏ – 6 Ports on wavelength cross-connect – 3 ports for backup grey ring traffic from Bellhead 7609 (λ4E-λ6E)‏ – 3 ports for backup WDM ring traffic from Bellhead 7609 (λ7E-λ9E)‏ – 1 port for DWDM link to Durban (via Bellhead): λ10E – 1 port for DWDM link to Johannesburg (λ1N)‏

50. Cape Town Bellhead Cisco WXC 10 Gbps Grey Ring #1 40 Channel WDM Filter λ1 W 10Gbps Grey ring #3 10Gbps Grey ring #2 Cisco 7609 Grey Ring 2 Grey Ring 1 Grey Ring 3 DWDM ring protection to CRS Xponders 1-4 Optical pass- through to CHPC λ1 E λ2 W λ2 E λ3 W λ3 E λ4 W λ5 W λ6 W λ7 W λ8 W λ9 W λ10 N P1P2P5P6 6708#1 P1P2P5P6 6708#2 P1P2P5P6 6708#3 P1P2P5P6 ES20#2 P1P2 ES20#1ES20#3 Xponders 5-7 λ2 λ3 λ1 Line to DurbanLine to CPUT CTLine to CPUT BV WDM Ring East (Shelf 1)‏WDM Ring West (Shelf 2)‏ 1 3579 101112 13 1516171819 20 National (Shelf 3)‏ λ10 W λ11 W λ11 E PE-PE link 14 Grey Ring protection

51. 1. λ1 (CPUT traffic)‏ 3. λ2 (UWC traffic)‏ 5. λ3 (UCT traffic)‏ 7. λ11 PE-PE link 9. Grey ring#1 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 10. Grey ring#2 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 11. Grey ring#3 traffic from backup 7609 at Bellhead in case CHPC 7609 fails 12-14. WDM ring traffic from backup 7609 at Bellhead in case CHPC 7609 fails 15. Grey ring#1 (West)‏ 16. Grey ring#2 (West)‏ 17. Grey ring#1 (East)‏ 18. Grey ring#3 (West)‏ 19. Grey ring#2 (East)‏ 20. Grey ring#3 (East)‏ Bellhead Connections

52. Cape Town (Bellhead) Cisco 7609 PE Router – 4x octal port 6708 cards 3 ports for DWDM ring traffic 3 ports for backup WDM traffic to CRS (in case CHPC 7609 fails)‏ 3 ports for backup grey ring traffic to CRS (ring 1,2,3)‏ 1 port for PE-PE link – 4x dual port ES20 cards 2 ports for Grey ring #1 2 ports for Grey ring #2 2 ports for Grey ring #3 Cisco WXC wavelength cross-connect – 7x dual port Xponder cards 3 ports (3 cards) for DWDM ring traffic 3 ports for backup WDM ring traffic to CRS 3 ports for backup Grey ring traffic to CRS 1 port for PE-PE link – Optical pass-through Link to National (Durban), optically passed through to CHPC

53. Cape Town CPUT (BV) Cisco ONS CPUT Network 32 Channel WDM Filter λ1 W λ1 E Line to BellheadLine to UWC

54. Cape Town CPUT (CT) Cisco ONS CPUT Network 32 Channel WDM Filter λ1 W λ1 E Line to UCTLine to Bellhead

55. Cape Town UWC Cisco ONS UWC Network 32 Channel WDM Filter λ2 W λ2 E Line to CPUT BVLine to CHPC

56. Cape Town UCT Cisco ONS UCT Network 32 Channel WDM Filter λ3 W λ3 E Line to CHPCLine to CPUT CT

57. National Provider PoP Bellville SANReN Cisco 15454 ONS λ10 xPponder 1 TUT Firewall 40 Channel WDM Mux/Demux National Provider WDM Terminal λ1 Transponder X WDM Link to Cape Town Line to Bellhead

58. National Provider PoP Cape Town SANReN Cisco 15454 ONS λ1 xPponder 1 TUT Firewall 40 Channel WDM Mux/Demux National Provider WDM Terminal λ1 Transponder X WDM Link to Cape Town Line to CHPC