Abstract: An apparatus includes a processor and a memory that stores code executable by the processor to transmit a passenger status message in response to a trigger event indicative of a passenger failing to be picked up at a pickup location by a ride service vehicle. The passenger status message is transmitted to a passenger mobile communication device and a driver. The code is executable to transmit a help message to members of a passenger trusted list in response to receiving a reply to the passenger status message from the passenger indicative of a request for help by the passenger. The code is executable to transmit to a police agency a police request to assist the passenger in response to a trusted list timeout, which is indicative of not receiving a message from a member of the passenger trusted list that indicates the passenger is okay before the trusted list timeout.

Abstract: An apparatus includes a message receiver circuit that receives, at a port of a network node, a message from a neighboring network node. The message includes a maximum transmission unit (“MTU”) of the neighboring network node. The network nodes communicate using a layer-2 protocol. The apparatus includes a comparison circuit that determines if the received MTU is larger than an MTU for the port, and an approval circuit that, after determining that the received MTU is larger than the port's MTU, determines if the received MTU is supported by the network node. The method includes an increase circuit that, after determining that the received MTU is supported, changes the MTU of the network node's ports to match the received MTU, and a message circuit that, after determining that the received MTU is supported, sends a message with the MTU to network nodes connected to ports of the network node.

Abstract: An apparatus for optimization for Spanning Tree Protocol (“STP”) data network includes an egress filter setting circuit in a first network node that sets an egress filter to discard data packets at an egress port of the first network node connected to a second network node in response to receiving an egress filter bridge protocol data unit (“BPDU”) message from the second network node indicating that a link between the first network node and the second network node is a redundant link. The network nodes are layer-2 STP bridges. The apparatus includes, in the first network node, an egress filter timeout circuit that resets a timer in response to receiving the egress filter BPDU message, and a filter clear circuit that clears the egress filter to allow data packets to be sent from the egress port to the second network node in response to the timer reaching a timeout.

Abstract: An apparatus for optimization for Spanning Tree Protocol (“STP”) data network includes an egress filter setting circuit in a first network node that sets an egress filter to discard data packets at an egress port of the first network node connected to a second network node in response to receiving an egress filter bridge protocol data unit (“BPDU”) message from the second network node indicating that a link between the first network node and the second network node is a redundant link. The network nodes are layer-2 STP bridges. The apparatus includes, in the first network node, an egress filter timeout circuit that resets a timer in response to receiving the egress filter BPDU message, and a filter clear circuit that clears the egress filter to allow data packets to be sent from the egress port to the second network node in response to the timer reaching a timeout.

Abstract: A method for optimizing telemetry packet for in-band telemetry includes receiving a telemetry packet at a network node in a communication pathway between a sending host sending data packets to a receiving host and determining telemetry data for the network node. The telemetry data includes latency information for data packet processing of the network node. The method includes adding metadata to the telemetry packet, where the metadata is added after a header and a telemetry packet header and after any metadata added by any upstream network nodes. The metadata includes the telemetry data and the metadata overwrites a portion of a payload of the telemetry packet. The method includes, in response to adding the metadata to the telemetry packet, transmitting the telemetry packet to a next destination.

Abstract: An apparatus includes a processor and a memory that stores code executable by the processor to transmit a passenger status message in response to a trigger event indicative of a passenger failing to be picked up at a pickup location by a ride service vehicle. The passenger status message is transmitted to a passenger mobile communication device and a driver. The code is executable to transmit a help message to members of a passenger trusted list in response to receiving a reply to the passenger status message from the passenger indicative of a request for help by the passenger. The code is executable to transmit to a police agency a police request to assist the passenger in response to a trusted list timeout, which is indicative of not receiving a message from a member of the passenger trusted list that indicates the passenger is okay before the trusted list timeout.

Abstract: An apparatus includes a message receiver circuit that receives, at a port of a network node, a message from a neighboring network node. The message includes a maximum transmission unit (“MTU”) of the neighboring network node. The network nodes communicate using a layer-2 protocol. The apparatus includes a comparison circuit that determines if the received MTU is larger than an MTU for the port, and an approval circuit that, after determining that the received MTU is larger than the port's MTU, determines if the received MTU is supported by the network node. The method includes an increase circuit that, after determining that the received MTU is supported, changes the MTU of the network node's ports to match the received MTU, and a message circuit that, after determining that the received MTU is supported, sends a message with the MTU to network nodes connected to ports of the network node.

Abstract: A method for optimizing telemetry packet for in-band telemetry includes receiving a telemetry packet at a network node in a communication pathway between a sending host sending data packets to a receiving host and determining telemetry data for the network node. The telemetry data includes latency information for data packet processing of the network node. The method includes adding metadata to the telemetry packet, where the metadata is added after a header and a telemetry packet header and after any metadata added by any upstream network nodes. The metadata includes the telemetry data and the metadata overwrites a portion of a payload of the telemetry packet. The method includes, in response to adding the metadata to the telemetry packet, transmitting the telemetry packet to a next destination.

Abstract: An apparatus for in-band telemetry includes a node type identifier circuit that, in response to receiving an ingress/egress ID command, determines that the network node is an ingress node in response to the network node having a direct connection to a source and determines that the network node is an egress node in response to the network node having a direct connection to a destination. The apparatus includes a telemetry packet circuit that creates a telemetry packet in response to the node type identifier circuit determining that the network node is an ingress node. The apparatus includes a telemetry transmission circuit that transmits the telemetry packet in response to the telemetry packet circuit creating the telemetry packet and a packet re-router circuit that, in response to the node type identifier circuit determining that the network node is an egress node, routes a received telemetry packet to a network controller.

Abstract: An apparatus for reporting node congestion of a queue of an egress port and changing to a different queue is disclosed. The apparatus includes a network node that includes a controller. The controller is configured to determine a level of congestion of a designated queue of an egress port of the network node in a communication pathway between a sending host sending data packets to a receiving host in response to receiving a telemetry packet seeking telemetry data for packets being transmitted between the sending host and the receiving host. The designated queue is designated for queuing data packets for the egress port. The controller is configured to add the level of congestion to the telemetry packet in response to determining that the level of congestion indicates that the designated queue is congested and to transmit the telemetry packet to a next destination on the communication pathway.

Abstract: An apparatus for reporting node congestion of a queue of an egress port and changing to a different queue is disclosed. The apparatus includes a network node that includes a controller. The controller is configured to determine a level of congestion of a designated queue of an egress port of the network node in a communication pathway between a sending host sending data packets to a receiving host in response to receiving a telemetry packet seeking telemetry data for packets being transmitted between the sending host and the receiving host. The designated queue is designated for queuing data packets for the egress port. The controller is configured to add the level of congestion to the telemetry packet in response to determining that the level of congestion indicates that the designated queue is congested and to transmit the telemetry packet to a next destination on the communication pathway.

Abstract: An apparatus for in-band telemetry includes a node type identifier circuit that, in response to receiving an ingress/egress ID command, determines that the network node is an ingress node in response to the network node having a direct connection to a source and determines that the network node is an egress node in response to the network node having a direct connection to a destination. The apparatus includes a telemetry packet circuit that creates a telemetry packet in response to the node type identifier circuit determining that the network node is an ingress node. The apparatus includes a telemetry transmission circuit that transmits the telemetry packet in response to the telemetry packet circuit creating the telemetry packet and a packet re-router circuit that, in response to the node type identifier circuit determining that the network node is an egress node, routes a received telemetry packet to a network controller.