Ralph Santitoro Director of Carrier Ethernet Market Development November 3, 2009 Success Stories: Carrier Ethernet Access Technologies for the Fastest Return on Investment Ubiquitous Ethernet Services over Any Access Network

Ethernet Access Service Market Some things to consider… Ethernet becoming preferred technology inter-provider handoff Retail / Partner Service Provider wants a Layer 2 handoff from their wholesale access provider Even if Retail Service Provider is delivering an IP service to its customers Ethernet is delivered over many types of layer 1 technologies SONET/SDH, T1s/T3s, Wavelengths, copper pairs, DOCSIS and fiber Need to unify Ethernet services over these different access networks Diverse usage of Ethernet in Access Networks Access to Internet (IP Services) Layer 2 site-to-site connectivity (hub and spoke still popular) Backhaul of residential broadband services and cell sites to MTSOs 2 © 2009 Fujitsu Network Communications, Inc. All rights reserved. Need to address a broad spectrum of services over a diverse set of access networks

Partner Service Provider Customer Premises Ethernet Access Challenges 3 Ethernet ENNI / UNI Ethernet RUNI / UNI TSP Voice MPLS Inter-Metro Transport VSP VoD and IPTV Mobile Telephony Switching Office Retail Service Provider ISP Internet Access © 2009 Fujitsu Network Communications, Inc. All rights reserved. How does one deliver Ethernet with a complex mix of access networks? SONET Ethernet rings DS-3s DS-1s SONET Ethernet PDH Access Network Copper Access Network WDM Access Networks Ethernet Cable Access Network

Ethernet Access Service RUNI / UNI Requirements at the Customer Premises Deliver UNI on behalf of Partner Provider MEF Remote UNI (RUNI) Ensure SLA Conformance High Availability through protected RUNI / UNI Equipment Protection and Link Aggregation Preserve VLAN ID & 802.1p / DSCP (L2 / IP CoS) Bandwidth Policing / Shaping Fault Management (Loopbacks / Linktraces) Performance Monitoring (Latency, Loss, IFDV) FM and PM for you and your Partner Provider Connection-oriented Ethernet Simpler to traffic engineer than Switched Ethernet Closely aligns with existing transport operations © 2009 Fujitsu Network Communications, Inc. All rights reserved. Ethernet RUNI / UNI Customer Premises 4

Access Service Ethernet ENNI / UNI Requirements at Service Edge Flexible VLAN ID and CoS ID Marking/Mapping Don’t know if partner is delivering Layer 2 or IP service You don’t know your partner’s equipment limitations Ethernet 802.1p  IP DSCP / TOS C-Tag and S-Tag push/pop/swap Ensure SLA Conformance (similar to RUNI / UNI) High Availability through protected ENNI / UNI Equipment Protection and Link Aggregation Preserve VLAN ID & 802.1p / DSCP (L2 / IP CoS) Bandwidth Policing / Shaping Fault Management (Loopbacks / Linktraces) Performance Monitoring (Latency, Loss, IFDV) FM and PM for you and your Partner Provider Connection-oriented Ethernet Presents access network as a simple transport network Simplifies SLA conformance © 2009 Fujitsu Network Communications, Inc. All rights reserved. Ethernet ENNI / UNI 5 TSP Voice MPLS Inter-Metro Transport VSP VoD and IPTV Mobile Telephony Switching Office Retail Service Provider ISP Internet Access Partner Service Provider

Introducing the EoX Gateway EoX Aggregation Connection-oriented Ethernet Protected Ethernet ENNI / UNI Adds/removes Layer 1 encapsulation technologies GFP, X.86, G.709 (OTN) L2 handoff to partner provider Unified Service Description EPL, EVPL, Ethernet access to IP services over any access network Reduce time to revenue © 2009 Fujitsu Network Communications, Inc. All rights reserved. 6 Ethernet ENNI / UNI EoX Gateway Simplifies Service Delivery over Any Access Network EoX Aggregation EoX Gateway SONET Ethernet rings DS-3s DS-1s SONET Ethernet PDH Access Network Copper Access Network WDM Access Networks Ethernet Cable Access Network TSP Voice MPLS Inter-Metro Transport VSP VoD and IPTV Mobile Telephony Switching Office ISP Internet Access Partner Service Provider

ISP Internet Access TSP Voice VSP VoD and IPTV MPLS Inter-Metro Transport Mobile Telephony Switching Office Retail Service Provider Putting it all together SONET Protected GbE/10GbE NxDS-3 NxDS-1 OC-n EoX Aggregation Unprotected GbE/10GbE GbE 7 xDSL CPE µMSPP µPONP µMSPP µPONP EoPDH NID EoPDH NID EoPDH NID EoPDH NID PDH Access Network Ethernet NID EoSEoS EoCuEoCu EoPDHEoPDH EoFEoF ENNI / UNI µPONP Eoλ Copper Access Network GbE/10GbE Access Network EoX Access RUNI / UNI µPONP IP DSLAM Customer Premises © 2009 Fujitsu Network Communications, Inc. All rights reserved. MSPP PONP MSPP PONP EoX Gateway Ubiquitous Ethernet Services over Any Access Network GbE Cable Modem Cable Access Network CMTS EoDOCSISEoDOCSIS

Partner Service Provider ISP Internet Access IP/MPLS VPN Retail Service Provider Case Study: Service Provider Delivering Retail / Wholesale Ethernet / IP Services NxDS-3 NxDS-1 SONET EoX Aggregation 8 xDSL CPE EoPDH NID EoPDH NID EoPDH NID EoPDH NID PDH Access Network Ethernet NID EoCuEoCu EoPDHEoPDH EoFEoF ENNI / UNI Copper Access Network Access Network EoX Access RUNI / UNI IP DSLAM Customer Premises © 2009 Fujitsu Network Communications, Inc. All rights reserved. µPONP Convergence of all services from legacy networks to Ethernet SONET Retail Service Provider SONET EoX Gateway µPONP