Methods, systems, and apparatuses for priority-based time partitioning in time-triggered ethernet networks

A system for scheduling a set of Virtual Links (VLs) contained in a Time-Triggered (TT) Ethernet (TTE) network with temporal partitioning by a Network Scheduling Tool (NST), the system comprising:

• the NST configured to:
• determine a subset of a group of bins allocated to TT traffic wherein the TT traffic is restricted in a specified harmonically subdivided pattern with a certain duration;
• equate an allocated group of bins to a rate which is restricted to the rate that is at least twice as high as a highest TT traffic rate to enable controlling of media reservations;
• check whether a bin selected for the TT VL via a bin selection process is a valid TT bin, else proceeding to a subsequent bin until a valid TT bin is returned for the TT VL;
• and
• in response to a TT schedule established by selection of a set of valid TT VLs, activate approximately all TTE capable network devices with a media reservation wherein the media reservation restricts runtime egress packets in transit to a set of runtime egress packets with a priority higher than or equal to a TT priority of the network.

An apparatus comprising a network scheduling tool (NST) for scheduling of Virtual Links (VLs) contained in a Time-Triggered Ethernet (TTE) network for use by a Network Scheduling Tool (NST), comprising:

• the NST configured with a processor programmed by a set of instructions to schedule time-triggered traffic by:
• determining a subset of a group of bins allocated to Time-Triggered (TT) traffic wherein the TT traffic is restricted in a specified harmonically subdivided pattern with a certain duration;
• equating an allocated group of bins to a rate which is restricted to the rate that is at least twice as high as a highest TT traffic rate to enable controlling of media reservations;
• checking whether a bin selected for a TT virtual link (VL) via a bin selection process is a valid TT bin, else proceeding to a subsequent bin until a valid TT bin is returned for the TT VL;
• preventing lower priority traffic from interference in network transit of TT traffic by a set of media reservations;
• removing variability introduced by dead-band time that had been previously allocated to a VL to be scheduled;
• and
• in response to a TT schedule established by selection of valid TT VLs, configuring by the NST by a scheduling algorithm, approximately all TTE capable network devices to activate a media reservation wherein the media reservation restricts runtime egress packet processing to packets with a priority greater than or equal to a TT priority.