A class act
for Ethernet
Ethernet has – quite literally – come a very long way since its
humble origins as a local area network protocol. Today, there
“Total cost of ownership is also dramatically
are exponential demands being placed on wide area and metro
networking – and carrier class Ethernet is now increasingly
reduced by converging transport services
the choice for implementing high performance packet-based
and eliminating unnecessary domains and
networks that can handle the traffic. The flexibility, predict-
networking layers.”
ability and carrier-grade quality of connection-oriented Ethernet
packet transport provides the cost savings demanded of
future networks, and it delivers clear benefits in all areas from
We don’t say, though, that Ethernet
Pekka Viirola:
access to aggregation, and from metro to core, by simplifying
should be everywhere – we
Head of technology for IP Transport
network architecture. In short, Carrier Ethernet Transport is
help providers to see where in
Nokia Siemens Networks
their networks it makes sense
a big step towards efficient, next generation networks.
and so implement specific traffic
processing functionalities.”
It is a message being heard in the taining native LAN speeds,” says
market. According to analyst IDC, the Viirola, “and demand for Ethernet As he adds, the technical features of service platform) network based networks by optimising their infra-
worldwide Carrier Ethernet Transport services is booming. Much of this the technology – connection-oriented on Carrier Ethernet Transport that structure based on current and
market had already reached $6.72 popularity is driven by migrating and capable of establishing end- delivers secure services, manageable future layer 1 to 3 service require-
billion in 2007, but will more than legacy TDM or even IP-VPN services to-end Ethernet tunnels – are now bandwidth and service provisioning ments. Another approach, specific to
double to $15.3 billion by the end of to roll out increasingly bandwidth matched with requisite models for with ‘hard’ quality of service and Nokia Siemens Networks, is a ‘point
2012. The growth is coming, it reports, hungry applications on Ethernet.” end-to-end operation administration guaranteed service level agreements. and click’ approach to managing
partly from new networks but mainly and maintenance (OAM), quality of The company has selected Carrier bandwidth utilisation. “Centrally
from migration from legacy services Mobile backhaul service and resiliency. “Providers Ethernet Transport solutions from handling Ethernet services, as
such as frame relay, ATM and TDM Mobile backhaul is also becoming a cannot afford to sacrifice the secu- Nokia Siemens Networks, which customers such as COLT are doing,
(SONET/SDH) services – the latter, major application. “Mobile broadband rity and robustness they have with deliver voice, data, and TDM traffic simplifies end-to-end delivery
in particular, currently carries a access could translate into a 100-fold existing legacy networks,” he says. with low latency and jitter, and high and management,” says Viirola.
majority of packet-based services, increase on backhaul networks,” says “And total cost of ownership is also resilience, including a multiple
which is clearly not sustainable.
Pekka Viirola:
Viirola, “including best effort Internet dramatically reduced by converging failover protocol that is the equal of The key messages are clear. Various
Ethernet’s ‘ease and simplicity’ has,
Head of technology for IP Transport
and high quality voice and video transport services and eliminating that of current SDH deployments. Ethernet platforms are out there
says IDC, now migrated into wide
Nokia Siemens Networks
services. Packet-based transport unnecessary domains and networking now to implement carrier class
area networks, while carrier class is of course the key technology for layers. Multilayer and multi-domain Meanwhile, Nokia Siemens Networks, networks for compelling applica-
transport equipment is becoming Residential access next generation LTE, WiMAX and optimised networking for IP, Ethernet adds Viirola, recently demonstrated tions – and there are choices to be
a more cost effective approach for Services such as TV and video I-HSPA mobile networks, and Carrier and WDM is key to cost efficiency in an industry first – an Ethernet- made between vendors according
delivering Ethernet business serv- on demand are becoming huge Ethernet Transport allows service future high-speed transport networks.” based mobile backhaul solution to the flexibility of the offerings. But
ices and also residential access. consumers of bandwidth and are providers to step into service level that showed how synchronisation crucial is understanding the wider
particularly challenging traffic types agreements that guarantee key Just deploying pure bandwidth on its occurs between base stations over a context of transport and how and
As Pekka Viirola, who heads tech- for telecoms networks. The rollout performance indicators, such as own is not the answer, he stresses. packet-switched, backhaul network. where Carrier Ethernet Transport
nology for IP Transport at Nokia of these real time services in multi- dropped calls and mandatory trans- “Running different types of services on “Effective synchronisation has been can best be deployed and managed.
Siemens Networks, comments, play bundles requires scalable and mission of synchronisation signals.” one converged infrastructure means a stumbling block for the deploy-
there are three markets that Carrier sustainable bandwidth and service that each service has its own perform- ment of next generation networks To find out more please visit:
Ethernet Transport is addressing. quality – or providers run the risk With its Carrier Ethernet Transport ance and management requirements. because both voice and data need www.nokiasiemensnetworks.com/
“Enterprise services and mobile of being punished by the market. solutions, Nokia Siemens Networks, Providers need platforms that allow to be handled efficiently on a single transport
backhaul are key markets, but with says Viirola, is stressing the impor- them to differentiate traffic and apply packet optimised platform. We think
increasing concerns about the quality Enterprise services tance of planning and optimising the right policies to ensure services this demonstration will mark a turning
of experience the residential access This has already become a key networks for reduction in total cost of meet their key performance indica- point that will spur operators to go
market is also becoming important market for Carrier Ethernet Transport, ownership, and applying easy to use tors and service level agreements.” for mass next-generation rollouts.”
for the technology,” he says. “We and indeed has been the main early management tools to handle end-to-
are actively involved with all three.” adopter. “Forward thinking companies end traffic, from access through A company that has taken these In general, Viirola also emphasises
are extending their Ethernet-collapse aggregation to the core. “We have messages on board is pan-European the tremendous TCO savings that
Features of the key markets backbone LANs across metro and an holistic approach and do not limit carrier, COLT, which serves enter- can be made with concepts such
for Carrier Transport Ethernet wide area networks in a seamless, ourselves to any part of the network prise customers. It has recently as multiplayer optimisation – a way
include the following: cost effective fashion while main- when it comes to this technology. decided to roll out an MSP (multi- of tuning or transforming carriers’
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