A system for transporting between first and second devices a traffic, that is according to a protocol that use continuous transmission of frames for synchronization and includes data frames and idle frames, over an Internet Protocol, IP, based packet-switched network, the system comprising: a first translator connected between the first device and the packet-switched network and operative to receive a first traffic according to the protocol from the first device, to encapsulate a second traffic from the first traffic in packets suitable for transporting over the packet-switched network, and to transmit the packets to the packet-switched network; and a second translator connected between the second device and the packet-switched network and operative to receive the packets from the first packet-switched network, to decapsulate the first traffic from the second traffic in the received packets; and to transmit the generated first traffic to the second device; characterized in that: the first translator is further operative to identify a repetitive signal that is made of successive idle frames in the first traffic and to generate the second traffic by replacing the identified repetitive signal in the first traffic with an indicator; and the second translator is further operative to identify (94, 98) the indicator in the second traffic and to reproducing in response to the indicator the first traffic from the second traffic, wherein the protocol is compatible to Fibre Channel, FC, the idle frames are IDLE frames according to the FC protocol, the traffic is FC traffic, and the first and second devices are respectively first and second FC devices. a first translator connected between the first device and the packet-switched network and operative to receive a first traffic according to the protocol from the first device, to encapsulate a second traffic from the first traffic in packets suitable for transporting over the packet-switched network, and to transmit the packets to the packet-switched network; and a second translator connected between the second device and the packet-switched network and operative to receive the packets from the first packet-switched network, to decapsulate the first traffic from the second traffic in the received packets; and to transmit the generated first traffic to the second device; characterized in that: the first translator is further operative to identify a repetitive signal that is made of successive idle frames in the first traffic and to generate the second traffic by replacing the identified repetitive signal in the first traffic with an indicator; and the second translator is further operative to identify (94, 98) the indicator in the second traffic and to reproducing in response to the indicator the first traffic from the second traffic, wherein the protocol is compatible to Fibre Channel, FC, the idle frames are IDLE frames according to the FC protocol, the traffic is FC traffic, and the first and second devices are respectively first and second FC devices. the first translator is further operative to identify a repetitive signal that is made of successive idle frames in the first traffic and to generate the second traffic by replacing the identified repetitive signal in the first traffic with an indicator; and the second translator is further operative to identify (94, 98) the indicator in the second traffic and to reproducing in response to the indicator the first traffic from the second traffic, wherein the protocol is compatible to Fibre Channel, FC, the idle frames are IDLE frames according to the FC protocol, the traffic is FC traffic, and the first and second devices are respectively first and second FC devices.