Fibre Channel SAN Extension over Optical Networks
WAN Design Metrics
WAN Design Metrics
DWDM
SONET
CWDM
Cost
Metro
Ethernet
Public IP
Distance
Large enterprises are more likely have the resources to implement optical
solutions like CWDM, DWDM, and SONET/SDH, and may already have dark
fibre in place.
Distance –
Metro Ethernet is 60km
CWDM – 120km
DWDM – 250km
SONET – can go a lot further (dependent on the number of
regenerators you implement) because it can be
regenerated.
IP – would give us the longest distance (global) and the
lowest cost but at the cost of latency.