Network elements within a network are configured to transport Ethernet traffic and non-Ethernet traffic over a same medium. The network elements can generate and process multi-frames that include the Ethernet traffic and non-Ethernet traffic. Each of the plurality of group slots includes a first set of bytes allocated to carry the non-Ethernet traffic and a second set of bytes allocated to carry the Ethernet traffic. At least one group slot of the plurality of group slots includes a timestamp, and the network elements are further configured to use the timestamp to reconstruct the original spacing between packets of the Ethernet traffic.