this parameter configures the relative priority of different traffic streams. High-tdm-over-high-ethernet gives priorities as follows: (1) TDM high priority (2) Ethernet high priority (3) TDM low priority (4) Etherenet low priority. High-Ethernet-over-tdm gives priorities as follows: (1) Ethernet high priority (2) TDM high priority (3) TDM low priority (4) Etherenet low priority. Tdm-over-ethernet gives priorities as follows: (1) TDM high priority (2) TDM low priority (3) Ethernet