MAC address. When hwXponDynamicMacQueryType is 1 ,the MAC addresses which can include 5 MAC addresses at most, and its format is (XX.XX.XX.XX.XX.XX). When hwXponDynamicMacQueryType is 2, 3 or 4, the query result contains MAC address entries with a length of 0-1280 bytes. A maximum of 128 MAC addresses can be queried, each entry containing 10 bytes. The queried entry is in a format of port type (1 byte)+port ID (1 byte)+VLAN ID (2 bytes)+MAC address (6 bytes), where the blank field can be represented by 0, for example, 3401400000E0FC000001. Range: 0-1280