A method of operating a session management function, SMF, entity (263, 367, 471, 473) of a wireless communication network, the method comprising: receiving (201, 301, 401, 403, 851) an Ethernet context for a wireless terminal (251, 351, 451) from a first user plane function, UPF, entity (257, 359, 461, 465), wherein the Ethernet context is provided for an Ethernet Protocol Data Unit, PDU, Session for the wireless terminal (251, 351, 451) using the first UPF entity (257, 359, 461, 465), wherein the Ethernet context includes a Medium Access Control, MAC, address for the wireless terminal (251, 351, 451), and wherein the first UPF entity (257, 359, 461, 465) acts as a first PDU Session Anchor, PSA, for the Ethernet PDU Session for the wireless terminal (251, 351, 451) using the Ethernet context including the MAC address for the wireless terminal (251, 351, 451); characterized by selecting (207, 308, 415, 421, 857) a second UPF entity (259, 361, 463, 467) to act as a second PSA for the Ethernet PDU Session for the wireless terminal (251, 351, 451) using the Ethernet context including the MAC address for the wireless terminal (251, 351, 451); and responsive to selecting (207, 308, 415, 421, 857) the second UPF entity (259, 361, 463, 467), transmitting (208, 309, 416, 422, 859) a request to establish an Ethernet Protocol Data Unit, PDU, session for the wireless terminal to the second UPF entity (259, 361, 463, 467), wherein the request to establish the Ethernet PDU session includes the Ethernet context including the MAC address for the wireless terminal, wherein transmitting (208, 309, 416, 422, 859) the request to establish an Ethernet PDU session comprises transmitting the ethernet context including the MAC address for the wireless terminal to the second UPF entity (259, 361, 463, 467) to change from the first PSA of the PDU Session to the second PSA of the PDU Session using the Ethernet context without releasing the PDU Session. receiving (201, 301, 401, 403, 851) an Ethernet context for a wireless terminal (251, 351, 451) from a first user plane function, UPF, entity (257, 359, 461, 465), wherein the Ethernet context is provided for an Ethernet Protocol Data Unit, PDU, Session for the wireless terminal (251, 351, 451) using the first UPF entity (257, 359, 461, 465), wherein the Ethernet context includes a Medium Access Control, MAC, address for the wireless terminal (251, 351, 451), and wherein the first UPF entity (257, 359, 461, 465) acts as a first PDU Session Anchor, PSA, for the Ethernet PDU Session for the wireless terminal (251, 351, 451) using the Ethernet context including the MAC address for the wireless terminal (251, 351, 451); characterized by selecting (207, 308, 415, 421, 857) a second UPF entity (259, 361, 463, 467) to act as a second PSA for the Ethernet PDU Session for the wireless terminal (251, 351, 451) using the Ethernet context including the MAC address for the wireless terminal (251, 351, 451); and responsive to selecting (207, 308, 415, 421, 857) the second UPF entity (259, 361, 463, 467), transmitting (208, 309, 416, 422, 859) a request to establish an Ethernet Protocol Data Unit, PDU, session for the wireless terminal to the second UPF entity (259, 361, 463, 467), wherein the request to establish the Ethernet PDU session includes the Ethernet context including the MAC address for the wireless terminal,