Connection determination method, optical cross interconnection unit, apparatus, switching device, medium

A method for determining a connection relationship in a switching device, comprising:

• determining, according to a number of first-stage optical interconnection units in the switching device and a number of first-stage access points in each optical cross interconnection unit, optical cross interconnection units and first target access points corresponding to a plurality of first-stage optical interconnection units, wherein each first target access point is a first-stage access point in the optical cross interconnection unit for communicative connection with a corresponding first-stage optical interconnection unit;
• and
• determining, according to a number of second-stage optical interconnection units in the switching device and a number of second-stage access points in each optical cross interconnection unit, optical cross interconnection units and second target access points corresponding to a plurality of second-stage optical interconnection units, wherein each second target access point is a second-stage access point in the optical cross interconnection unit for communicative connection with a corresponding second-stage optical interconnection unit;
• wherein the switching device comprises a plurality of first-stage optical interconnection units, a plurality of second-stage optical interconnection units, and a plurality of optical cross interconnection units, each optical cross interconnection unit comprises a plurality of first-stage access points and a plurality of second-stage access points, and each of the first-stage access points in the optical cross interconnection unit is in communicative connection with the respective second-stage access points, so that each of the first-stage optical interconnection units is in communicative connection with the respective second-stage optical interconnection units via the optical cross interconnection unit.