An apparatus comprising: an interconnection node (300b,c) configured to dynamically provide interconnection access between a first optical network and at least either a second optical network or a third optical network in a purely optical fashion; wherein the interconnection node includes: a first network portion coupled with the first network that includes: an omni-directional and colorless multi-degree routing portion; a second network portion coupled with the second network and the first network portion of the interconnection node such that optical signals may be routed between the second network and the first network; and a third network portion coupled with the third network and the first network portion of the interconnection node such that optical signals may be routed between the third network and the first network, wherein the first network portion includes: a patch-panel mesh, PP-Mesh, configured to route optical signals from a plurality of inputs ports to a plurality output ports; a first and a second of wavelength cross-connect, WXC, units, each coupled between the first network and the PP-Mesh; a third WXC unit coupled between the PP-Mesh and a colorless demultiplexer; the colorless demultiplexer coupled between the third WXC unit and the second and third networks; and a colorless multiplexer coupled between the PP-Mesh and the second and third networks, wherein the second network portion and the third network portion each include: a first and a second 2-degree reconfigurable optical add-drop multiplexer, ROADM, coupled to their respective second or third network; wherein an add port of each ROADM is coupled to the colorless demultiplexer, and wherein a drop port of each ROADM is coupled to the colorless multiplexer. an interconnection node (300b,c) configured to dynamically provide interconnection access between a first optical network and at least either a second optical network or a third optical network in a purely optical fashion; wherein the interconnection node includes: a first network portion coupled with the first network that includes: an omni-directional and colorless multi-degree routing portion; a second network portion coupled with the second network and the first network portion of the interconnection node such that optical signals may be routed between the second network and the first network; and a third network portion coupled with the third network and the first network portion of the interconnection node such that optical signals may be routed between the third network and the first network, wherein the first network portion includes: a patch-panel mesh, PP-Mesh, configured to route optical signals from a plurality of inputs ports to a plurality output ports; a first network portion coupled with the first network that includes: an omni-directional and colorless multi-degree routing portion; a second network portion coupled with the second network and the first network portion of the interconnection node such that optical signals may be routed between the second network and the first network; and a third network portion coupled with the third network and the first network portion of the interconnection node such that optical signals may be routed between the third network and the first network, wherein the first network portion includes: a patch-panel mesh, PP-Mesh, configured to route optical signals from a plurality of inputs ports to a plurality output ports; a first and a second of wavelength cross-connect, WXC, units, each coupled between the first network and the PP-Mesh; a third WXC unit coupled between the PP-Mesh and a colorless demultiplexer; the colorless demultiplexer coupled between the third WXC unit and the second and third networks; and a colorless multiplexer coupled between the PP-Mesh and the second and third networks, wherein the second network portion and the third network portion each include: a first and a second 2-degree reconfigurable optical add-drop multiplexer, ROADM, coupled to their respective second or third network; wherein an add port of each ROADM is coupled to the colorless demultiplexer, and wherein a drop port of each ROADM is coupled to the colorless multiplexer. a first and a second 2-degree reconfigurable optical add-drop multiplexer, ROADM, coupled to their respective second or third network; wherein an add port of each ROADM is coupled to the colorless demultiplexer, and wherein a drop port of each ROADM is coupled to the colorless multiplexer.