Distributed unit architecture for increasing vran resilience

In a 5G telecommunications network including a plurality of distributed units and a centralized unit on a virtualized radio access network, a method performed by a centralized unit for increasing resilience in the virtualized radio access network, the method comprising:

• causing a first stream control transmission protocol (SCTP) connection to be established between the centralized unit and a first distributed unit of the plurality of distributed units;
• causing a second SCTP connection to be established between the centralized unit and a second distributed unit of a plurality of distributed units;
• detecting a failure condition of the first distributed unit;
• and
• in response to detecting the failure condition of the first distributed unit, activating the second SCTP connection and causing fronthaul traffic to be routed to the second distributed unit.

A system, comprising:

• at least one processor;
• memory in electronic communication with the at least one processor;
• and
• instructions stored in the memory, the instructions being executable by the at least one processor to:
• establish, by a middlebox entity, a first stream control transmission protocol (SCTP) connection between a centralized unit and a first distributed unit;
• establish, by the middlebox entity, a second SCTP connection between the centralized unit and a second distributed unit;
• detect a failure condition of the first distributed unit;
• and
• in response to detecting the failure condition of the first distributed unit, activate the second SCTP connection and causing fronthaul traffic to be routed to the second distributed unit.