Transmission priority paths in mesh networks
First Claim
1. A method, comprising:
- determining a trigger for establishing transmission priority on a path through a shared-media communication network for priority traffic to a particular node, wherein the trigger is determined to have occurred when a particular type of data flow has been received at a root node;
in response to determining that the trigger has occurred at the root node, generating a path clear message (PCM);
transmitting the PCM along the path to the particular node to establish the transmission priority for the priority traffic along the path through the shared-media network;
suspending transmission for traffic other than the priority traffic for a specified duration;
transmitting the priority traffic to the particular node along the path during the transmission priority; and
transmitting a transmission priority clearing message along the path in response to completion of the transmission priority; and
resuming transmission for other traffic after the specific duration.
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Abstract
In one embodiment, a node may determine a trigger for establishing transmission priority on a path through a shared-media communication network for priority traffic to a particular node. As such, the node may generate a path clear message (PCM) that would instruct one or more receiving nodes along the path to suspend transmission for traffic other than the priority traffic for a specified duration, and also to transmit a local non-repeated distributed message to one or more neighbor nodes of each respective receiving node, the local non-repeated distributed message to instruct the neighbor nodes to suspend transmission for the specified duration. After transmitting the PCM along the path to the particular node to establish the transmission priority for the priority traffic along the path through the shared-media network, the priority traffic may be transmitted to the particular node along the path during the transmission priority.
23 Citations
23 Claims
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1. A method, comprising:
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determining a trigger for establishing transmission priority on a path through a shared-media communication network for priority traffic to a particular node, wherein the trigger is determined to have occurred when a particular type of data flow has been received at a root node; in response to determining that the trigger has occurred at the root node, generating a path clear message (PCM); transmitting the PCM along the path to the particular node to establish the transmission priority for the priority traffic along the path through the shared-media network; suspending transmission for traffic other than the priority traffic for a specified duration; transmitting the priority traffic to the particular node along the path during the transmission priority; and transmitting a transmission priority clearing message along the path in response to completion of the transmission priority; and resuming transmission for other traffic after the specific duration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus, comprising:
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one or more network interfaces to communicate in a shared-media computer network; a processor coupled to the network interfaces and configured to execute one or more processes; and a memory configured to store a process executable by the processor, the process when executed operable to; determine a trigger for establishing transmission priority on a path through a shared-media communication network for priority traffic to a particular node, wherein the trigger is determined to have occurred when a particular type of data flow has been received at a root node; in response to determining that the trigger has occurred at the root node, generate a path clear message (PCM); transmit the PCM along the path to the particular node to establish the transmission priority for the priority traffic along the path through the shared-media network; suspend transmission for traffic other than the priority traffic for a specified duration; transmit the priority traffic to the particular node along the path during the transmission priority; transmit a transmission priority clearing message along the path in response to completion of the transmission priority; and resume transmission for other traffic after a specific duration. - View Dependent Claims (11, 12, 13)
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14. A method, comprising:
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receiving, from a root node in response to a particular type of data flow being received at the root node, a path clear message (PCM) at a receiving node along a path to a particular node in a shared-media communication network, the particular type of data flow identified as priority traffic, in response to receiving the PCM, suspending transmission for all traffic other than the priority traffic for a specified duration; transmitting a local non-repeated distributed message to one or more neighbor nodes of the receiving node; receiving the priority traffic to the particular node during the transmission priority; transmitting the priority traffic toward the particular node along the path during the transmission priority; receiving a transmission priority clearing message along the path in response to completion of the transmission priority; and in response to receiving the transmission priority clearing message from the root node, resuming transmission for traffic other than the priority traffic after suspension for the specific duration, and transmitting a second local non-repeated distributed message to one or more neighbor nodes of the receiving node. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus, comprising:
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one or more network interfaces to communicate in a shared-media computer network; a processor coupled to the network interfaces and configured to execute one or more processes; and a memory configured to store a process executable by the processor, the process when executed operable to; receive, from a root node in response to a particular type of data flow being received at the root node, a path clear message (PCM) at a receiving node along a path to a particular node in a shared-media communication network, the particular type of data flow identified as priority traffic, in response to receiving the PCM, suspend transmission for all traffic other than the priority traffic for a specified duration; transmit a local non-repeated distributed message to one or more neighbor nodes of the receiving node; transmit received priority traffic toward the particular node along the path during the transmission priority; and in response to receiving a transmission priority clearing message from the root node, resume transmission for traffic other than the priority traffic after suspension for the specific duration, and transmit a second local non-repeated distributed message to one or more neighbor nodes of the receiving node.
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Specification