"00 00 00 00 " + //padding in ofp_port1\r
"08 00 27 00 B0 EB " + //mac address\r
"00 00 " + //padding in ofp_port2\r
"00 00 00 00 " + //padding in ofp_port1\r
"08 00 27 00 B0 EB " + //mac address\r
"00 00 " + //padding in ofp_port2\r
"00 00 00 05 " + //port state\r
"00 00 00 81 " + //current features\r
"00 00 00 81 " + //advertised features\r
"00 00 00 05 " + //port state\r
"00 00 00 81 " + //current features\r
"00 00 00 81 " + //advertised features\r