The Point-to-Point Topology
• Dedicated point-to-point connection between
two Fibre Channel nodes
• This is really a DAS architecture, but offers
better performance and flexibility than Parallel
So as we go through the FC SAN Topologies this is our point to point
connection, N_Port to N_Port.
Point to point is nice and straightforward. We have a node port talking to a
node port, pretty much like a Direct Attached Storage Architecture.
We can do this over quite a long distance. If we use single mode , 9 micron
fibre with a 1550 nanometre wavelength transmitter, we could actually have
these two nodes 120km apart. That’s much better than the 25m SCSI
distance limitation that we had.