1. Passive optical LAN for educational facilities
Author/Presenter
DD-MM-YYYY
Public

2. Broadband benefits are driving positive changes for education
On-demand, real time collaboration for faculty & students
Remote & e-learning; enhanced support for research facilities
Digital campus; multimedia exchanges with greater mobility
Public

3. What is passive optical LAN?
>100M users connected with fiber
GPON OLT (access node)
1:n
Passive splitter
Optical fiber distribution
1st choice of operators, utilities, governments
Optical fiber feeder
IP Network
GPON ONT
(end-user modem)
GPON is the fastest growing access technology worldwide
GPON (ITU-T G.984) key facts
Bandwidth per PON
Downstream: 2.5Gb/s, upstream:1.2Gb/s
Bandwidth per user
1Gbps
Fiber infra
Passive. Max Split 1:128. Reach: 20 km in one direction
Services
Data, voice, video, WiFi backhaul
Evolution
Graceful migration to XGS-PON (10G) & TWDM-PON (up to 40G)
There are >100M users worldwide, across all GPON vendors
GPON is the fastest growing technology in terms of subscriber additions (Del’Oro analyst report, 2014)
Operating in over 130 countries, Alcatel-Lucent has shipped over 18M GPON ports in over 180 fiber projects worldwide and is the only telecom vendor with an industry leading position in all regions of the world. We are recognized as the leading broadband vendor by prominent industry analysts like Gartner, Infonetics Research, Current Analysis and Broadband Trends.
The key technical points – one central office OLT (Optical Line Termination) unit, ONTs (Optical Network Termination) at the end user location
There is Single mode fiber that connects the two together, through a network of passive splitters to distribute the fiber. So between these two end points, the network is entirely passive – no need for power, no need for special housing facilities for equipment (Splitters can be installed anywhere, on a wall, ceiling, in a riser, …) There is no need for special cooling/air-con for the splitters and ONT.
Same simple distribution topology in POL – Central office, splitters, fiber drops to ONTs, for a few floors, a whole building, an entire 40 km campus
Typical split for commercial/business users is 1:32 and for residences 1:64
Public

4. Traditional LAN vs. passive optical LAN
Fiber
Passive splitters
POL OLT
Less equipment = less floor space
Passive network = less power consumption, less HVAC
Simpler network = easier maintenance
Less cables = reduction in cable cost, load & maintenance
Cost-efficient upgrades = same fiber, same OLT
CAT5/6/6A
Aggregation & Access switches
Distribution switches
NOTE TO SPEAKER: Must spend more time on this slide, expanding on all the bullet points in detail, as this makes the business case
Another operational inefficiency of these legacy copper-based networks is their local management at each Ethernet switch. Skilled IT pros are forced to execute moves/adds/changes (MACs) by interfacing directly with all these switches spread across multiple physical locations, a process that increases the chances of human error and adds to the expense of everyday LAN operations.
Ease of expansion to new areas or for short term additions
With ethernet, you must have new ports at the switch to run an ethernet cable all the way from the equipment to the location you want to extend the service
With POL, just add a splitter in the area where fiber exists and run a fiber to the new location from the splitter and add an ONT
The passive splitters need no maintenance as they are passive devices. Any physical damaged units can be easily replaced by relatively low skilled electrical maintenance staff. The lesser equipment of the POL solution means the annual maintenance costs are lower.
Less power consumption means that the running cost of the POL is lower and that the UPS requirements are lighter – so again less capex and lower maintenance costs.
The Optical LAN is characterized by a shared point-to-multipoint architecture, a passive optical distribution infrastructure and near-futureproof single-mode fiber connectivity. Similar to cloud-based networks, the OLAN architecture shifts network intelligence to the core and centralizes the management of all far-reaching endpoints. Just as cloud-based computing centrally locates resources for sharing by many users to save energy, space, capital costs, and operational costs, OLAN does precisely the same
The intelligence required to manage all endpoints and services resides in the central management system and OLT, an approach which accelerates moves, adds, and changes while reducing human error. The combination of more machine-to-machine communications and fewer human touches improves network availability. Large businesses lose about 4% of annual revenue because of network downtime, and the human factor is responsible for 50%–80% of all network outages.
Because an ONT is a thin-client device, it does not store user and provisioning information; only the OLT stores all user policies. IT professionals can install ONTs behind lockable covers or inside walls, with faceplate screws alarmed through the intelligent, centrally located management system. On an ONT, the default state for all Ethernet ports is “disabled,” which means that attackers cannot penetrate them. Finally, because there is no access at ONTs, they are unmanaged and have no local user interface, making them very secure
Public

5. Reap the benefits of passive optical LAN from day one
52% savings in total cost of ownership in year 1
Capex
Opex
51% savings
62% savings
Source: Bell Labs Passive Optical LAN total cost of ownership study, 2015.
Based on 10 floor office building with 2000 PoE Ethernet ports.
The key capex savings is in cabling and costs to make up the IDFs and Server Room, apart from floor space and the active electronics itself. Lower HVAC capex has not been considered. The impact of larger UPS requirements for the AE solution have also not been factored.
Cabling cost savings is not just in material and laying costs, but the associated support and cable tray costs are also lower.
Opex savings are due to energy and maintenance savings.
Energy consumption is lower mainly due to lower power consumption for cooling requirements and lower equipment power consumption per Ethernet port.
Maintenance costs are lower due to lesser equipment and UPS sizes in POL, with a lower need for maintenance upgrades and patches.
Floor space can be considered in either capex (space is bought) or opex (space is rented). Here we consider rent. Also the cost of preparing the space for more equipment as well as HVAC needs (ducting, panelling, carpetting, etc.) adds to Capex but not considered here.
Over a period of 5 years, the Total savings is of the order of 55% as the Opex is a recurring saving, year after year. Power and maintenance costs would also tend to increase with inflation over the years enhancing the savings with POL.
This example is for a typical enterprise building, 10 floors with a single riser, with an average horizontal cable run of 50m Ethernet ports for office PC, phone and conference room use are considered.
In this example, the % savings for Cabling (68%), Electronics (11%); Power (53%); Floor Space (60%) and Maintenance (66%).
Public

6. A typical solution for education
Classrooms & auditoriums
A typical solution for education
WI-FI AP
Main server room
Access Control
ONT
Splitter
5571 PCC PA
WiFi ctrl
IP/MPLS
UHD display
VoIP/PBX
2.5 Gb/s
Staff & admin offices
1.25 Gb/s
FTTD
Surveillance
7750/7450
WDM video coupler
7360 FX (OLT)
Patch Panel
Fiber distribution
Office LAN
Internet
ONT
(in building)
Splitter
IP/Analog phone
Security & room access
Building mgmt & control
IT & Data Servers
Video conference
RF/cable TV video
EDFA
Labs/test centers
Virtual desktop
ONT
1550nm
1490nm
Downstream data
Downstream RF video
1310nm
Upstream data
3 λs
Collaboration group
Splitter
Building & security management
Surveillance
Bldg mgmt IP sensors
ONT
Security & central management
The main server room is typically located in the basement of a building. It is shown blown up and outside the building for clarity.
The OLT shelf has card with either 8 or 16 Passive Optical Network, PON, ports per card. Each port can be connected to a Single Mode (SM) fiber that is taken to a fiber patch panel in the server room. From there, the fibers are run through the building, using splitters per floor to distribute the fiber to the ONTs. Splitters can be cascaded (one splitter connected to another splitter)
Extending the network to a new room or floor is easy. If a spare connection is available at the splitter connection, you simply run a fiber from that splitter to the location you need the service. If there is only a fiber at the location, you can add terminate it at a splitter and splice a new fiber to the existing fiber at the new location and just add an ONT.
The wavelengths separate upstream and downstream traffic so there is no contention between upstream and downstream (or even with video traffic) on the same fiber as each wavelength carries the traffic independently.
EDFA – Erbium Doped Fiber Amplifier. EDFA is an optical repeater device that is used to boost the intensity of optical signals being carried through a fiber optic communications system. An optical fiber is doped with the rare earth element erbium so that the glass fiber can absorb light at one frequency and emit light at another frequency.
The typical services that run in the solution are highlighted in the slide. The services are indicative and typically any IP over Ethernet service can be run on a POL network
Public

7. A typical campus solution
OLT
Central Administration with main server room
Lab facilities
Library & auditorium
Classrooms
The solution for one building can be easily extended over to other buildings that are located within 20km from the OLT. So campuses that have many buildings under the same organization can be connected from one conveniently located OLT. Hotels and commercial complexes that encompass many buildings next to each other can also be connected as can resorts with villas and rooms spread over a wide area.
The same network topology that is used within a building can be extended to other buildings as well. Fiber from the central OLT is brought to the building and using the same set up of splitters, fiber can be distributed throughout the building and terminate at OLTs to give user ports where needed.
Public

8. 5571 passive optical LAN command center
Management made easy
Intuitive Web User Interface
Simplified provisioning
Single Click Install
ONT auto activation
Pre-define service definitions for each usage type
Intuitive trouble shooting tools
Logical alarm display and management
A comprehensive POL management tool, that covers all possible management requirements of the system
Public

9. 5571 - realistic network view
Easily customized for your environment
Upload your floor plans
Display ONTs in their actual location
Multiple ways to navigate to ONTs
By floor plan: displays aggregated stats
By tile view
Filtered from a list
ONT detail view
Services
OLT shelf, Line Termination (LT) Card and the port it is connected to
Alarms
Public

10. 1GB network today Traditional LAN Passive Optical LAN Public IP router
GE links
GE links (on SM fiber)
Edge ethernet switches
Edge ethernet switches
7360 ISAM FX OLT
GE Links
Access ethernet switches
End user GE run – CAT6
7368 ISAM ONT
7368 ISAM ONT
Public

11. A simple upgrade to 10GB and beyond
Traditional LAN
Passive Optical LAN
New 10GB port/card
New 10GB port/card
IP router
IP router
New 10 GE link
GE links
New 10 GE link
GE links (on SM fiber)
New OLT card
New fiber patch
Edge ethernet switches
Edge ethernet switches
New switch
7360 ISAM FX OLT
Wavelength combiner
GE Links
New 10 GE link
Access ethernet switches
New switch
New ONT
End user GE run – CAT6
New end user GE run – CAT6A
7368 ISAM ONT
7368 ISAM ONT
Public

12. Why passive optical LAN is the right choice
Collapse and converge
Ultra-broadband capacity
Savings
Legacy networks typically need multiple sub-systems (equipment, cabling and management) to deliver voice, data, video, CCTV, security, WiFi, public announcements…
Remove traffic bottlenecks with a Gigabit network to increase the efficiency of interaction and communication between employees, suppliers and customers
A future-proof network having a low cost of evolution with a lifespan of +50 years
Upfront CAPEX savings (51%)
Reduced equipment footprint (60%)
Lower power consumption (53%)
Lower cooling requirements
Cheaper maintenance (66%)
Leading to lower OPEX (62%)
Reduce complexity with one simple network to deliver all services
Improve business performance
Lower total cost of ownership/increased savings*
Passive optical LAN gives you a flexible, scalable network infrastructure
*Source: Bell Labs Passive Optical LAN total cost of ownership study, 2015.
Based on 10 floor office building with 2000 PoE Ethernet ports.
Public

13. Nokia: a recognized broadband leader
Ranked #1 in FTTH Magic Quadrant
Rated Fixed Access Leader in 2015 vendor assessment
22% of global GPON market; shipped 26M+ ports. Only vendor with strong presence in all regions
Gartner ranked ALU #1 in the 2014 magic quadrant for fiber to the home. The report was retired after this due to the product reaching full maturity.
Current Analysis ranked ALU as a leader in the 2015 vendor fixed access assessment.
Dell Oro ranked ALU with 22% of the global GPON market for FY2014, with the company reporting +18M ports shipped.
Public