| tr.ac | Access Control | Unsigned 8-bit integer | |
| tr.addr | Source or Destination Address | 6-byte Hardware (MAC) Address | Source or Destination Hardware Address |
| tr.broadcast | Broadcast Type | Unsigned 8-bit integer | Type of Token-Ring Broadcast |
| tr.direction | Direction | Unsigned 8-bit integer | Direction of RIF |
| tr.dst | Destination | 6-byte Hardware (MAC) Address | Destination Hardware Address |
| tr.fc | Frame Control | Unsigned 8-bit integer | |
| tr.frame | Frame | Boolean | |
| tr.frame_pcf | Frame PCF | Unsigned 8-bit integer | |
| tr.frame_type | Frame Type | Unsigned 8-bit integer | |
| tr.max_frame_size | Maximum Frame Size | Unsigned 8-bit integer | |
| tr.monitor_cnt | Monitor Count | Unsigned 8-bit integer | |
| tr.priority | Priority | Unsigned 8-bit integer | |
| tr.priority_reservation | Priority Reservation | Unsigned 8-bit integer | |
| tr.rif | Ring-Bridge Pairs | String | String representing Ring-Bridge Pairs |
| tr.rif.bridge | RIF Bridge | Unsigned 8-bit integer | |
| tr.rif.ring | RIF Ring | Unsigned 16-bit integer | |
| tr.rif_bytes | RIF Bytes | Unsigned 8-bit integer | Number of bytes in Routing Information Fields, including the two bytes of Routing Control Field |
| tr.sr | Source Routed | Boolean | Source Routed |
| tr.src | Source | 6-byte Hardware (MAC) Address | Source Hardware Address |