Alfred C. Hobbs in 1853 wrote a book published: "Early in the locksmith learn from each other before the culprits had been very well aware of the issue of unlocking details, such as recently they exhibited." He said : "Whether the country in which the manufacture or manufacturer who, if not as the world lock, as previously thought unassailable, then of course the best decent people know this, because it is not quite clear how evil individuals acquired knowledge into action. In this context, so widespread that knowledge is necessary in order to be in fair to those who suffer because of ignorance. "
Cell Relay will result in lower bandwidth utilization. For example, suppose there is a telecom operators want to include packet-over-SONET interface, multi-protocol label switching core to transmit a cell relay ATM cell stream. At the edge of carrier networks, 52-byte ATM cell with a 4-byte control word, 4 bytes of virtual circuit label, 4 bytes 4 bytes of the tunnel label and Cisco Advanced Data Link Control II layer header. Each 52-byte ATM cell of the total cost is 16 bytes. Therefore, POS fiber size of the final group of 68 bytes. In this case, cell relay of the bandwidth waste rate of about 23.52%. Cisco 12000,7500 and 7200 series routers support cell packaging technology, but this introduces its IP Service Engine 4-port ATM-over-SONET OC-12/STM-4 and 4-port ISE ATM-over-SONET OC-3 / STM-1 line card implementation.