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Eight 10-megabit ports; that is how LINX (Internet Exchange in London) started its dream of providing links to the UK networks.
After 20 years of exceptional service, the 10-megabit ports have then been replaced by 10-gigabit and higher ports. For two years now, 100 Gbps in IXs have now slowly moved from idea to real design. There is however concern about the higher prices of 100G that is making today's transition decision difficult.
On 18th November 2014, I was invited to participate in a panel discussion at the LINX87 event. We discussed the technical, financial and operational challenges of metro migrations to 100Gbps and the trade-offs therewith. I was able to highlight the different flavors of 100Gbps solutions available in the market, namely direct-detect DWDM and coherent single carrier and reflected on the cost impact for different transport infrastructure. As there are different form factors with different power dissipation factors, it requires a balancing act to choose the right solution with optimum CAPEX/OPEX and desired distance and performance.
100Gbps in IX is imminent and the sheer data volume of future years will help the 100G-migration enthusiasts implement 100G within their budgets.