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<div class="moz-cite-prefix">On 31/Jul/19 16:48, Etienne-Victor
Depasquale wrote:<br>
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cite="mid:CAAcx0vDjvN_JuoN59NS6upmN1ZxJtco0VdS_j_r+8A3xWi+gBg@mail.gmail.com">
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<div>"<span
style="color:rgb(17,17,17);font-family:Roboto,Arial,sans-serif;font-size:14px">I'm
trying to identify trends in adoption of transport
technology in the metro-area. If legacy is SDH/SONET and its
successor in circuit transport is OTN, what are network
providers implementing and planning to implement as
transport technology in the metro area? For example, are
packet transport technologies being considered as a
replacement? As a complementary technology? By packet
transport technologies, I am thinking of PBB-TE and MPLS-TP
but ultimately, the problem regards how network providers
are balancing circuit-transport and packet-transport
technologies in current and planned deployments.</span>"</div>
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<br>
Ethernet has been ruling the Metro for some time now. The control
and forwarding planes that drive that are a decision left to the
operator.<br>
<br>
There is a healthy sharing of the pie between DWDM and packet to
drive these Ethernet Metro's, depending on use-case, the operators'
business model, whether it's an ISP or a content network, e.t.c.<br>
<br>
In all, SDH/SONET Metro networks, while not completely gone, are
certainly on the decline.<br>
<br>
As far as OTN goes, I've always heard more talk than actual biting
by customers. In our market, every time a customer has shown
interest in OTN, they end up going for EoDWDM, all the time.<br>
<br>
Mark.<br>
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