  Antiferromagnets (AFMs) are promising materials for future high-frequency
field-free spintronic applications. Self-localized spin structures can enhance
their capabilities and introduce new functionalities to AFM-based devices. Here
we consider a domain wall (DW), a topological soliton that bridges a connection
between two ground states, similar to a Josephson junction (JJ) link between
two superconductors. We demonstrate the similarities between DWs in bi-axial
AFM with easy-axis primary anisotropy, driven by a spin current, and long
Josephson junctions (LJJs). We found that the Bloch line (BL) in DWs resembles
the fluxon state of JJs, creating a close analogy between the two systems. We
propose a scheme that allows us to create, move, read, and delete such BLs.
This transmission line operates at room temperature and can be dynamically
reconfigured in contrast to superconductors. Results of a developed model were
confirmed by micromagnetic simulations for Cr$_2$O$_3$ and DyFeO$_3$, i.e.,
correspondingly with weak and strong in-plane anisotropy. Overall, the proposed
scheme has significant potential for use in magnetic memory and logic devices.
