Provide input and output file via command line so it can be reused with different data.
Provide input and output file via command line so it can be reused with different data.

NZRS/nz-bgp-topology-map,NZRS/nz-bgp-topology-map,NZRS/nz-bgp-topology-map,NZRS/nz-bgp-topology-map