[802.3BA] IEEE[802.3BA] Discussion on 40G for => 10 km SMF

["Braun, Ralf-Peter" <Ralf-Peter.Braun@xxxxxxxxxxxxx>]

All -

 

the need for 40 GbE - 10km interfaces was stated several times 

which should be true for data centers as well as for operator networks.

 

However, in such environments it is important to have technologies which

need to scale to terabit systems. See e.g. bechtel_01_0307.pdf from Yahoo

for current data centers with too many paths and cables.

 

From an operator point of view we need interfaces that allow the techno-economic

scalability of data centers and telecommunication networks. This scalability is related

to the whole systems including the interfaces only as one part.

 

So it seems that the market may not accept the best interfaces, but may be the best

system solutions. E.g. it also includes the best utilization and reduction of paths and

cables/fibers.

 

Therefore we would still prefer a serial solution. However, we believe that a 40GbE-10km

interface is needed and the baselines have to be agreed on the next IEEE802.3ba meeting. 

 

In conclusion,

the 40GbE - 10km objective is necessary and a baseline has to be adopted on the next

IEEE802.3ba meeting, so we will constructively support the baseline finding process. 

 

Ralf, Dirk, ...