Abstract: This disclosure relates to a communication network within which relays, which are connected to devices participating in a communication session (e.g., a video conference), are dynamically added and removed from the communication session. For instance, when participating in a communication session, a sending network device sends media streams (e.g., audio and/or video media streams) to its associated relay. The relay sends, through a relay communication link, the media streams to one or more receiving relays. The one or more receiving relays then forward the media stream to associated receiving network devices. As additional network devices join the communication session, the additional network devices connect to additional relays, which establish a network of relay communication links with all the relays involved in the communication session. Furthermore, as network devices leave the communication session, relays can be removed from the communication session.

Abstract: This disclosure relates to a communication network within which devices participating in a communication session dynamically switch between sending media streams to a participating network device through one of multiple communication channel options. For instance, when establishing a communication session (e.g., a video conference), a sending network device establishes two potential communication channels with a receiving network device participating in the communication session. The sending network device determines which of the two potential communication channels is best suited for providing a media stream related to the communication session (e.g., an audio and/or video media stream), and assigns that communication channel as an active communication channel over which the sending network device provides the media stream to the receiving network device.

Abstract: This disclosure relates to a communication network within which relays, which are connected to devices participating in a communication session (e.g., a video conference), are dynamically added and removed from the communication session. For instance, when participating in a communication session, a sending network device sends media streams (e.g., audio and/or video media streams) to its associated relay. The relay sends, through a relay communication link, the media streams to one or more receiving relays. The one or more receiving relays then forward the media stream to associated receiving network devices. As additional network devices join the communication session, the additional network devices connect to additional relays, which establish a network of relay communication links with all the relays involved in the communication session. Furthermore, as network devices leave the communication session, relays can be removed from the communication session.

Abstract: This disclosure relates to a communication network within which devices participating in a communication session dynamically switch between sending media streams to a participating network device through one of multiple communication channel options. For instance, when establishing a communication session (e.g., a video conference), a sending network device establishes two potential communication channels with a receiving network device participating in the communication session. The sending network device determines which of the two potential communication channels is best suited for providing a media stream related to the communication session (e.g., an audio and/or video media stream), and assigns that communication channel as an active communication channel over which the sending network device provides the media stream to the receiving network device.

Abstract: Disclosed is an apparatus comprising a network element (NE) configured to receive an Internet Group Management Protocol (IGMP) data packet in Internet Protocol version four (IPv4) format, translate the data packet into an Multicast Listener Discovery (MLD) data packet in Internet Protocol version six (IPv6) format, and forward the translated data packet. Also disclosed is an apparatus comprising a NE configured to receive an MLD data packet in IPv6 format, and translate the data packet into an IGMP data packet in IPv4 format. Also disclosed is a method comprising receiving a plurality of data packets, wherein the plurality of data packets comprise IGMP data packets and MLD data packets, translating at least one of the IGMP data packets into a MLD data packet, and translating at least one of the MLD data packets into an IGMP data packet.

Abstract: A method for interacting with Internet Protocol version 6 (IPv6) compatible devices in a communications system includes receiving a first control message from a server, the dual-stack device comprising an Internet Protocol version 4 (IPv4) protocol stack and an IPv6 protocol stack, wherein the first control message includes an IPv4 level indicator that indicates support for IPv4 in the communications system, and adjusting a configuration of the IPv4 protocol stack in accordance with the IPv4 level indicator.

Abstract: The present relates to a method and a proxy for transporting IP messages over a Default Tolerant Network. The method and proxy receive a message composed of multiple IP packets payload, and create partial messages by bundling sub-groups of subsequent IP packets payload with a unique identifier and a corresponding sequence number. The partial messages are transported over the DTN. The partial messages are received at another proxy after transport over the DTN, are unbundled and ordered based on the sequence number; and delivered.

Abstract: The present relates to a method and a proxy for transporting IP messages over a Default Tolerant Network. The method and proxy receive a message composed of multiple IP packets payload, and create partial messages by bundling sub-groups of subsequent IP packets payload with a unique identifier and a corresponding sequence number. The partial messages are transported over the DTN. The partial messages are received at another proxy after transport over the DTN, are unbundled and ordered based on the sequence number; and delivered.

Abstract: The present disclosure relates to methods for configuring Delay/disruption-Tolerant Network (DTN) nodes and to configurable nodes operable in Delay/disruption-Tolerant Networks. A DTN node generates a unique identifier (UID) and concatenates a static identifier part with the UID to form an endpoint identifier (EID).