Creating bi-directional co-shared sessions and switching bi-directional co-shared sessions

摘要

Methods and systems for creating bi-directional co-shared sessions and switching between bi-directional co-shared sessions. Embodiment of one method includes the following steps: Sending a first message over a bi-directional parent session network path (Pp) to indicate allocation of network resources along the Pp, including co-shared network resources. Creating the parent session (Sp) by sending a first session creation message. Sending a second message over a bi-directional derivative session network path (Pd) to indicate allocation of non-co-shared network resources along the Pd. And creating the Sd by sending a second session creation message.

主权项

1. A method for creating bi-directional co-shared sessions over a resource reservation network, comprising:
sending a first message over a bi-directional parent session network path (Pp) between first and second session partners; wherein the first message indicates bi-directional network resources to be allocated by each network entity along the Pp in order to create a bi-directional parent session (Sp); and wherein the Sp comprises co-shared network resources over a first network hop directly connected to the first session partner, and non-co-shared network resources over a second network hop directly connected to the second session partner; responsive to the network entities along the Pp indicating in the first message that they can allocate the bi-directional network resources to the Sp, creating the Sp by sending a first session creation message to the network entities along the Pp; sending a second message over a bi-directional derivative session network path (Pd) between the first session partner and a third session partner; wherein the second message indicates non-co-shared bi-directional network resources to be allocated by each non-co-shared network entity along the Pd in order to create a bi-directional derivative session (Sd); and wherein the Sd comprises co-shared network resources over the first network hop, and non-co-shared network resources over a third network hop directly connected to the third session partner; and responsive to the non-co-shared network entities along the Pd indicating in the second message that they can allocate the non-co-shared bi-directional network resources to the Sd, creating the Sd by sending a second session creation message to the network entities along the Pd.