A network device establishes first and second Ethernet link aggregation groups (LAGs) at a first access site of an optical transport network (OTN), and creates a first optical channel (OCh) LAG subpath from the first Ethernet LAG, via a second access site of the OTN, to an Ethernet LAG at a third access site of the OTN. The network device also creates a second OCh LAG subpath from the first Ethernet LAG, via a distribution site of the OTN, to the Ethernet LAG at the third access site, and creates a first optical data unit (ODUk) LAG subpath from the second Ethernet LAG to an Ethernet LAG at the second access site. The network device further creates a second ODUk LAG subpath from the second Ethernet LAG, via the distribution site and the third access site, to the Ethernet LAG at the second access site.