Policy-based network transmission routing

A system for routing a transmission packet along a route from a source to a destination, comprising:

• one or more hardware processors;
• a routing metadata extractor executable by the one or more hardware processors and configured to extract routing metadata from a wrapper of the transmission packet, the routing metadata representing a feature of the source or the destination;
• a routing policy manager executable by the one or more hardware processors and configured to:
• compare the routing metadata to routing policy data associated with each of multiple routing policies defined within a routing policy structure;
• identify, based on the comparison, one or more routing policies applicable to the transmission packet;
• and
• identify, based on the routing policy data, a highest priority routing policy from the one or more routing policies, the highest priority routing policy defining a route constraint usable to limit a selection of available routes to the destination;
• and
• select the route from the available routes based on the route constraint;
• and
• a wrapper remover executable by the one or more hardware processors and configured to remove the wrapper from the transmission packet;
• and
• a hardware network interface configured to transmit the transmission packet along the route from the source to the destination with the wrapper removed.

One or more tangible processor-readable storage media embodied with instructions for executing on one or more processors and circuits of a computing device a process of routing a transmission packet along a route from a source to a destination, the process comprising:

• accessing routing metadata in a wrapper of the transmission packet, the routing metadata being excluded from a header of the transmission packet and representing a feature of the source or the destination;
• comparing the routing metadata to routing policy data associated with each of multiple routing policies defined within a routing policy structure;
• identifying, based on the comparing, one or more routing policies applicable to the transmission packet;
• identifying, based on the routing policy data, a highest priority routing policy from the one or more routing policies, the highest priority routing policy defining a route constraint usable to limit a selection of available routes to the destination;
• selecting the route from the available routes based on the route constraint;
• removing the wrapper from the transmission packet;
• and
• transmitting the transmission packet along the route from the source to the destination with the wrapper removed.