A method of streaming content in a communication network, the method comprising: a node of the communication network receiving streamed content in chunks of a given quality level from a streaming server; the node buffering the received chunks; and the node forwarding at least some of the buffered chunks to a streaming client; in response to detecting that no further chunks of the given quality level are required by the streaming client due to the streaming client switching to another quality level of streaming, the node discarding those of the chunks of the given quality level which are not yet forwarded to the streaming client; wherein said discarding of the chunks of the given quality level which are not yet forwarded to the streaming client comprises discarding those of the chunks of the given quality level which are buffered by the node at the time of detecting that no further chunks of the given quality level are required by the streaming client; wherein the node performing said discarding of the buffered chunks on the basis of a packet flow associated with the transmission of the chunks of the given quality level; characterized in that the node identifying the data packets of the chunks to be discarded on the basis of a queue to which the data packets are assigned upon receipt by the node, wherein the queue 110 comprises: data packets consist of both the chunks to be discarded and not to be discarded, wherein the chunks are discarded based on the identification by a flow identifier; or data packets consist of the chunks to be discarded, wherein the chunks are discarded by deleting the queue. a node of the communication network receiving streamed content in chunks of a given quality level from a streaming server; the node buffering the received chunks; and the node forwarding at least some of the buffered chunks to a streaming client; in response to detecting that no further chunks of the given quality level are required by the streaming client due to the streaming client switching to another quality level of streaming, the node discarding those of the chunks of the given quality level which are not yet forwarded to the streaming client; wherein said discarding of the chunks of the given quality level which are not yet forwarded to the streaming client comprises discarding those of the chunks of the given quality level which are buffered by the node at the time of detecting that no further chunks of the given quality level are required by the streaming client; wherein the node performing said discarding of the buffered chunks on the basis of a packet flow associated with the transmission of the chunks of the given quality level; characterized in that the node identifying the data packets of the chunks to be discarded on the basis of a queue to which the data packets are assigned upon receipt by the node, wherein the queue 110 comprises: data packets consist of both the chunks to be discarded and not to be discarded, wherein the chunks are discarded based on the identification by a flow identifier; or data packets consist of the chunks to be discarded, wherein the chunks are discarded by deleting the queue. wherein the node performing said discarding of the buffered chunks on the basis of a packet flow associated with the transmission of the chunks of the given quality level; characterized in that the node identifying the data packets of the chunks to be discarded on the basis of a queue to which the data packets are assigned upon receipt by the node, wherein the queue 110 comprises: data packets consist of both the chunks to be discarded and not to be discarded, wherein the chunks are discarded based on the identification by a flow identifier; or data packets consist of the chunks to be discarded, wherein the chunks are discarded by deleting the queue. data packets consist of both the chunks to be discarded and not to be discarded, wherein the chunks are discarded based on the identification by a flow identifier; or data packets consist of the chunks to be discarded, wherein the chunks are discarded by deleting the queue.