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OFC 2015 | Booth #1725
FEATURE Transforming metro economics
distributed data centers. Data-center
interconnection over long haul
networks has certainly been a driver
in that market, but a Bell Labs forecast
suggests more than 500% growth
in metro-network traffic by 2017.
Metro market fragmentation
If the scale of metro transmission
capacity is set to explode, what
will “next gen metro” look like?
First of all, we need to be clear that
the term “metro” covers a lot of
ground, although metro revenues
tend to be lumped into one big
bucket. At the top level there are
two metro markets: metro cloud and
metro aggregation (see Figure 2).
Metro cloud is driven by Internet
content providers, cloud providers,
and data-center owners who do not
typically have a lot of fiber, combined
with massive growth of “east–west”
server-to-server traffic between
data centers. These operators need
massive point-to-point scale between
data centers; not surprisingly, this
market has already moved to 100G.
User to DC
DC to DC
High capacity 100G metro
100G metro cloud 100G metro aggregation
• 10G moving to 100G
• Trigger is economics
• Led by telcos, cable
• Mesh, switching, NEBS
• Massive superchannel capacity
• Trigger is bandwidth pressure
• Led by ICPs
• P2P, Ethernet
FIGURE 2. The new 100G metro network will contain aggregation and cloud segments.