Failure management and propagation in a telecommunication network

A telecommunication system comprising:

• a synchronous transport network;
• a packet-switched network;
• a node connecting the synchronous transport network and the packet-switched network, the node being adapted to perform an adaptation function between the synchronous transport network and the packet-switched network, said node having a transport side and a packet side;
• wherein said node comprises a device for:
• detecting a first failure at the transport side;
• performing consequent actions in the output direction at the packet side;
• detecting at the packet side a second failure which is caused by said consequent actions;
• and
• ignoring the second failure.

A network element including a device adapted to connect a synchronous transport network and a packet-switched network, the device including:

• a transport side receiver adapted to detect a first failure from the synchronous transport network;
• a packet side transmitter adapted to perform consequent actions towards the packet-switched network;
• a packet side receiver adapted to detect a second failure from the packet-switched network, wherein the second failure is caused by said consequent actions;
• transport side transmitter adapted to ignore the second failure.