Layer 1 business services – like 1 and 10 Gigabit Ethernet and Fiber Channel – provide connectivity among corporate locations and data centers, and are highly profitable offerings that Service Providers sell to Enterprises. However, it has always been a challenge to provision these services quickly enough, due to the rigid, low-cost nature of optical access networks.
The problem has been that optical access networks use low cost fixed solutions that rely on manual provisioning. When a request for a L1 business service comes in, this is mapped manually via a transponder or muxponder onto an individual 1G or 10G wavelength, which in turn is mapped manually into a WDM access ring using fixed optical add-drop multiplexers. This is a slow process where every service requires design, and attention must be paid to amplification and dispersion compensation of the WDM ring. The bottom line is that responding to customer requests takes too long for today’s competitive environment.
The good news is that new technologies, in the form of economical small form factor OTN switches, now provide the means to transform this clunky approach. They enable the ring to use a single 100G wavelength rather than a WDM fiber. Services connect to the OTN switches via low-cost gray interfaces, and are added to the ring traffic under software control.
These new generation of access OTN switches enables a flexible optical edge at the same cost as the traditional approach, with many benefits, including:
For the full story, see our application note, Rapid Provisioning of L1 Business Services. It shows how service providers can gain a competitive advantage using access-to-core OTN switching.
Jonathan Homa, is Senior Director Portfolio Marketing at ECI for the last few years. Jonathan enjoys French beer in Nice and loves to discuss the 3 hottest topics in networking today: softwarization, virtualization and cloudification.