| Frame (const string& interface, const string& vif,
	    IPv4 dst, uint16_t dport,
	    IPv4 src, uint16_t sport,
	    uint8_t* data, uint32_t len,
	    string instance) | Frame | 
| inline vector<uint8_t>&  get_buffer () | get_buffer | 
| string _interface | _interface | 
| string _vif | _vif | 
| IPv4 _dst | _dst | 
| uint16_t _dport | _dport | 
| IPv4 _src | _src | 
| uint16_t _sport | _sport | 
| vector<uint8_t> _pkt | _pkt | 
| string _instance | _instance |