Johnny hedlund

Johnny Hedlund, CEO

  FTTH history since 2001   Focus on FTTH with innovative

products to facilitate service rich networks.

  Open Access and Vertical customers   >1 million ports deployed

  Access switches with market leading service QoS features and tools for network operations.

  HQ in Sweden, EBITDA positive.

2013-02-19 Technical Challenges in Open Access

  Part 1: Technical challenges on a design level   Network architecture variants, how it influences service

functionality and end users   Part 2: Technical challenges on an operational level

  Multicast TV with multiple content providers   Troubleshooting in Open Access networks


  Multiple fibers, multiple service providers (one per fiber)   One fiber, one service provider (out of many) delivers all

services.   One fiber, one service provider (out of many) delivers all

services, except TV (multicast VLAN)   One fiber, managed multiport CPE. Multiple service

providers, one per CPE port possible.   One fiber, multiple service providers on any CPE port

(Free seating)

Better for SP

Better for NO/User


  Where is the demarcation point per service?   How networking skilled does the user need to be? One service per port Free seating

TV Phone Internet

Bedroom 1 X X X

Bedroom 2 X X

Living room X X X

Kitchen X

Add to this   WiFi for smartphone, laptop,

surf pad   Wire for blueray, TV, game

console etc. 2013-02-19 Technical Challenges in Open Access

  Three main topology types

Metro network

SP 1 SP 1 SP 2

Service VLAN 100 Service VLAN

200

Metro network

SP 1 SP 1 SP 2 SP 2

SP 3 SP 3

SP 1 SP 2

SP 3

SP 1 SP 2

SP 3

Metro network

Service Router + Customer VLAN

Service VLAN L3 routed


Service Router + C-VLAN Service VLAN Layer 3 routed

•  Multicast distribution •  VLAN scalability •  Non-optimal traffic pattern •  Run SR / hand-over to SP? •  Central service control •  Poor QoS in access

network – security concern!

•  # of customers per VLAN •  IPv6 security and useability •  Proprietary security

solution. •  Ingress policing, limited

shaping •  Many boxes to configure

•  Separating service providers

•  IPv4 routing topology •  Proprietary IPv4

preservation solution •  Many boxes to configure

•  Good QoS at SR •  Fewer boxes to configure*

•  Maximize use of IPv4 •  Better QoS control at

queue point.

•  Free seating •  Natural topology for IPv6 •  Easier troubleshooting •  Better QoS control at

queue point.

Table of headaches

*) if you ignore the security concern 2013-02-19 Technical Challenges in Open Access

  TV service providers – coordinate multicast group addresses!   Avoid same group different channel problems   Allows fewer multicast VLANs and works better with the hardware

  Quality control – debugging of TV services

CanalDigital

Viasat

239.1.1.1

239.1.1.1 239.2.1.1


  Users will have problems. Who do they call?   How will the SP be able to

troubleshoot the service? ▪  Does the connection through the OA

network work? ▪  Does the port have the correct service/

VLAN configuration? ▪  Does the port have link to the user

home? ▪  Does the user have link in the home? ▪  Does the user device get an IP

address?

User

Service provider

Network operator


  Open Access brings another layer of challenges on top of the ”usual” issues facing any FTTH deployment.

  Most topologies and solutions have been tried   Non-competiveness between OA networks mean there is

openness and willingness to share and exchange ideas.

Take advantage of the Scandinavian ”tree shake” – there is a lot of experience available to guide you!


More information: www.packetfront.net Thank you!

Documents

Johnny hedlund