Metropolitan Area Networks

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Metropolitan Area Networks

• Bringing Broadband to the Regions

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19 Government MANs
Athlone Ballina Carlow Carrick-On-Shannon
Clonmel Cork Galway Gaoth Dobhair Kilkenny
Kiltimagh Letterkenny Limerick Manorhamilton
Mullingar Port Laoise Roscommon Tullamore
Waterford Wexford

• The Irish Government has invested in 380KM of
  Metropolitan Area Networks in Irelands major
  towns and cities.

A 200M government asset that forms the base for
Next Generation Networks
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What is a MAN made of?

• Its Not, Snips and snails, and puppy dogs tails!
• Ducts
• 4 Ducts used in each MAN
• Sub-Ducts
• 4 Sub-Ducts in each Duct
• Fibre Optic Cables
• 96 or 192 fibre cables used
• Colored Tubes each with 12 Fibres
• Chambers
• Chambers used for interconnecting fibres
• Splice Trays
• ODFs

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Ducts, Sub-Ducts Chambers

• Ducts and Sub-Ducts are Plastic tubes using a
  smooth inner lining and ribbed outer lining to
  prevent slippage.
• Chambers are junctions where different fibers are
  joined (Spliced) together. (A Sealed hole in the
  ground)
• A new chamber is Dropped each time the MAN
  fiber has a tail cable spliced onto it

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Fibre Optic Cables

• Fibre cables are constructed with multiple tubes
• Tubes are colour coded.
• There are 12 Fibres within each Tube, each fibre
  is colour coded.
• Splicing Teams can only work to the tube level!

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ODFs

• The ODF design approved for the MANs are self
  contained wall mount units.
• Inside each unit is Fibre strain relief, a Splice
  tray and, multiple SC fibre connectors.

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19 Rack Mount ODFs

• The standard 19 rack mount ODF achieves the same
  end goal as the self contained unit, but is laid
  out differently inside.

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Pigtails are Fusion Spliced to the Fibres

• Two Fibres are melted together using an
  electrical ARC between electrodes.
• A small metal bar held in place by a clear Heat
  Shrink sheath protects the weld

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National backhaul network

• National backhaul is provided by ESBs national
  fibre-wrap programme.
• Offers low-cost backhaul.

A 50M state asset allowing for complete
dis-intermediation of Eircoms backhaul network
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ESBT Fibre Wrap Splice Trays

• The ESB uses suspended Splice trays to splice
  fibres together and provide strain relief.

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Metro Illumination Technologies

• Long-haul Ethernet over dark fiber 100Base-LH
  and 1000Base-LH
• IP Ethernet over SONET / SDH
• IP packet over CWDM DWDM
• 802.17 Resilient Packet Ring (Smart Telecoms
  Choice)
• 10 Gig Ethernet
• MPLS and multiprotocol lambda switching

Ethernet is the preferred presentation for
Corporates
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Why Use Ethernet?

• Ethernet is fast becoming the standard
• For nearly everything
• Data
• Video
• Voice
• Transporting Ethernet packets natively is the
  most efficient delivery method.
• Ethernet switches werent designed for use in
  metropolitan networks.
• Ring Topologies introduce bridging loops
• RPR allows for native transport of packets on a
  ring
• Without the bridging loops of Ethernet switches
• RPR is a layer 2 MAC
• So it can transport easily over existing SDH

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Making Ethernet Carrier Class

• End-to end QoS guarantees
• Point click provisioning with SLAs
• lt50ms Protection mechanisms
• Bandwidth utilization
• Scalability
• L2 MPLS efficiency Vs L3
• Ring Vs Mesh

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MPLS / RPR Network Stack

• Packetize the Transport End-to-end packet-based
  transport with MPLS tunnels over RPR

TDM services
Data services
Video services

• ALL services converged to
• MPLS/RPR packet layer

MPLS
RPR
Packet PHY or SDH (concatenated) PHY
GFP
Packet PHY
OR
SDH Transport OH PHY
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Available Service Types on RPR

• Private Line
• TDM E1-T1 or STM-1
• Ethernet (EPL)

• Aggregation
• TDM Groom E1 via STM-1
• Ethernet (ELA)
• Video transport (VTS) ASI uncompressed MPEG

PW

• TLS
• Ethernet Virtual Switch
• Multipoint to multipoint

PW
PW

• Optical Private Line
• GE
• FC
• OC-3/12/48

PW
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RPR Traffic management benefits

• Class of service management
• Separate hardware queues prevent HOL blocking
• High priority traffic will NOT queue behind low
• Rate limiting policing
• Rate limiting is performed at port ingress
• No more transporting excess bandwidth
• Assures small user cant take up bandwidth
• Class B can be set as CIR EIR
• Allows customers burst bandwidth above CIR to the
  Excess
• Policing is done at ingress and ring
• Class C traffic is policed to ensure fairness to
  peers
• CAC determines if resources are available

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MPLS With RPR

• MPLS
• End-to-end SLA guarantees - connection-oriented
  traffic engineering layer
• Single End-to-end provisioning and management -
  uniform convergence layer for ALL services over
  an arbitrarily complex network
• Call-Admission-Control preserves QOS guarantees.
• RPR
• Quality of Service mechanisms to support
  differentiated services
• Bandwidth efficiency optimized for packetized
  traffic
• lt50 ms service restoration - independent of
  physical layer
• Automatic topology discovery more efficient
  management
• OSPF for Neighbor discovery and route table
  population
• Native multicast support

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What does Luminous RPR bring?

• Absolute Class of Service
• End to end guarantees for each service type
• Spatial Reuse
• Use 5Gb of 2.5Gb ring concurrently
• Destination node removes packet, not the source
  node
• Stat Muxing
• Oversubscribe lower classes of service
• Increase revenues achieved over infrastructure
• Carrier class, 99.999 availability
• Sub-50 ms resiliency protection
• Flexible topologies
• Operational simplicity, Ethernet TDM Interfaces
  
• Security and scalability

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PHY Flexibility
MPLS/RPR access ring
MPLS/RPR access ring
SDH Core Ring

• MPLS/RPR rings managed as overlay on SDH rings
• Service termination
• Full FCAPS management

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RPR Header

• 2 Overhead on Traditional 1500Byte Ethernet
  Frame.

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Luminous Network Nodes
Resilient Line Cards
Data Centre
POP
23 x E1 VoiceInterfaces
CPE
4 x STM-1 2 x Gig-E 8 x 10/100 E 8 x E12 x
Subtended Ring
1 x Gig-E Interface
8 x 10/100MbpsEthernet
2 x 2.5Gbps RPRInterfaces
Modular Chassis
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Accelerated Provisioning

• Luminous Management System
• Point and Click end-to-end MPLS provisioning
• Circuit Granularity 64K to 100Mb on same
  interface
• Bandwidth increases within minutes not Months
• Same day provisioning for all On-Net services E1,
  STM-1, 10/100 Ethernet and Gig Ethernet.
• 24hour deployment for pan European E1 services
• 24hour deployment for On-Net Global MPLS VPNs
• Multi-point to Multi-point Transparent LAN
  Services

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Smart Telecom Network on the Cork MAN
ESB Backhaul STM-16 Ring
To Foynes
To Dublin
4th Business Park 1G Ring
Cork 2.5G Ring (Deployed)
3rd Business Park 1G Ring
1st Business Park 1Gbps Ring
2nd Business Park 1G Ring
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Existing Deployment
Galway
Ennis
Shannon
Limerick
RPRoS via ESB
Foynes
Cork
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Resilient Wireless Rings

• Wireless Ring maintains sub 50 millisecond APS
• Facilitates resilient network extensions when
  fibre is unavailable
• Early network enablement
• TDM circuit capabilities preserved
• End to End provisioning and monitoring
  maintained.

Little Island
Cork MAN
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Wireless Edge Soloution
Smart Dublin POP
Smart Cork POP
E1/STM-1
E1
10/100
10/100
Customer Luminous Edge Box
10-100/GigE
radio link

• E1s are exiting as E1s or aggregated into an
  STM-1 and exit at any node or onto a Global
  network
• Ethernets are exiting as Ethernet, or
  aggregated into GigE
• Multiple services, multiple destinations,
  multiple QoS

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Summary

• Government should be congratulated on regional
  MAN program.
• Momentum is building on use of these MANs.
• Corporates are already experiencing savings far
  in excess of 50.
• Residential broadband penetration is next to
  benefit.
• Wi-Fi Hot Cities are next.
• Ethernet is the logical technology choice to
  deliver next generation services.
• RPR was ratified in June 04, larger players are
  now deploying it as a result. Cisco, Marconi,
  Nortel

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Thank you
More information available at http//www.luminous
.com/ www.rpralliance.org www.metroethernetforum.
org http//www.lightreading.com/search.asp
Search for RPR http//newsroom.cisco.com/dlls/2004
/hd_082304.html