Techniques for determining network reliability using message success rates include a first node in a mesh network computing a transmitted message success rate associated with a connection from the first node to a second node, wherein the second node is a neighbor node to the first node; computing, based on a first accumulated transmitted message success rate and the transmitted message success rate, a second accumulated transmitted message success rate for a route from the first node to a target destination using the second node, wherein the first accumulated transmitted message success rate is received from the second node and is associated with intermediary connections between the second node and the target destination; selecting, based on the second accumulated transmitted message success rate, the second node from a plurality of neighbor nodes; and transmitting a message to the target destination via the second node.

One embodiment of the present invention sets forth a technique for evaluating connections between nodes in a mesh network. The technique includes listening, at a first node and across a plurality of listening windows, for one or more messages transmitted by a second node during a first period of time; determining a number of messages received by the first node during the first period of time; computing, based on the number of messages received by the first node, a received message success rate associated with a first connection between the first node and the second node, wherein the received message success rate indicates a probability of successfully receiving, at the first node, messages transmitted by the second node via the first connection; and computing, based on at least one message received during the first period of time, a transmitted message success rate associated with the first connection, wherein the transmitted message success rate indicates a probability of successfully transmitting messages from the first node to the second node via the first connection.

An example device for retrieving media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: receive data indicating a packet loss signaling mechanism, the packet loss signaling mechanism comprising at least one of that segments are sent in chunks, that transport object identifiers (TOIs) are sequential, or that a last packet of an object assigned to a TOI has a specific flag set in a header of the last packet, a base URL, a maximum latency, or a synchronization point in a file delivery header; detect loss of a packet using the at least one of the packet loss signaling mechanisms, the lost packet including missing media data; generate a byte range request for the missing media data using information of the file delivery header; and deliver a proper media object to a media application.

A traffic detection method, apparatus, and system are provided. A first network device obtains a packet, where the packet is any packet of the traffic. The first network device adds a detection flag and detection indication information to the packet to update the packet, where the detection flag is used to indicate a position of the detection indication information, where the detection indication information includes a first flag, and the first flag is used to indicate whether the traffic is to-be-detected traffic. The first network device sends an updated packet to a second network device. According to this method, traffic performance is detected, and flexibility and extensiveness of traffic performance detection are improved.

A traffic detection method, apparatus, and system are provided. A first network device obtains a packet, where the packet is any packet of the traffic. The first network device adds a detection flag and detection indication information to the packet to update the packet, where the detection flag is used to indicate a position of the detection indication information, where the detection indication information includes a first flag, and the first flag is used to indicate whether the traffic is to-be-detected traffic. The first network device sends an updated packet to a second network device. According to this method, traffic performance is detected, and flexibility and extensiveness of traffic performance detection are improved.

Systems, apparatuses, and methods are described for routing messages in a network. Gateways may be selectively chosen to forward messages from a user device to a network server. Gateways may forward messages based on forwarding priorities for the user device. The forwarding priorities may, for example, indicate a repeat count threshold for a quantity of times the gateway may receive a message from a particular user device before the gateway forwards the message.

Systems, apparatuses, and methods are described for routing messages in a network. Gateways may be selectively chosen to forward messages from a user device to a network server. Gateways may forward messages based on forwarding priorities for the user device. The forwarding priorities may, for example, indicate a repeat count threshold for a quantity of times the gateway may receive a message from a particular user device before the gateway forwards the message.

Exemplary methods, apparatuses, and systems include duplicating a packet within a plurality of packets to be transmitted to a destination computing node as a sequence of packets. The plurality of packets including the duplicate of the packet are transmitted to the destination computing node. Upon receiving a first acknowledgement of the packet from the destination computing node, it is determined that the first acknowledgment is directed to a duplicated packet. In response to determining that the first acknowledgment is directed to a duplicated packet, it is determined that a second acknowledgement has yet to be received for each of one or more packets within the plurality of packets transmitted prior to the packet. In response to determining that the second acknowledgement has yet to be received, the one or more packets are retransmitted to the destination computing node.

Exemplary methods, apparatuses, and systems include duplicating a packet within a plurality of packets to be transmitted to a destination computing node as a sequence of packets. The plurality of packets including the duplicate of the packet are transmitted to the destination computing node. Upon receiving a first acknowledgement of the packet from the destination computing node, it is determined that the first acknowledgment is directed to a duplicated packet. In response to determining that the first acknowledgment is directed to a duplicated packet, it is determined that a second acknowledgement has yet to be received for each of one or more packets within the plurality of packets transmitted prior to the packet. In response to determining that the second acknowledgement has yet to be received, the one or more packets are retransmitted to the destination computing node.

In a method for exchanging packets between first and second nodes of a packet-switched network, each packet comprises two fields settable to an idle value or measurement value. The first node transmits to the second node first packets having a filed set to measurement value. Upon reception of each first packet, the second node transmits back to the first node a second packet having a field set to measurement value. Upon reception of each second packet, the first node transmits to the second node a third packet having another field set to measurement value. A packet loss measurement is calculated as a difference between the number of first packets and the number of third packets.