Patent ID: 11956669
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A first node for determining an indication of a maximum datagram size supported without fragmentation in communication between the first node and a second node in an Internet Protocol, IP, network, wherein the first node is configured to:
send, to the second node, request messages in varying sized IP packets using an application layer protocol over User Datagram Protocol, UDP, and which IP packets are configured not to be fragmented by the IP network,
receive, from the second node, in response to the sent request messages, one or more response messages, respectively, each response message indicating that a datagram of a request message that the response message is in response to, was received by the second node,
identify a request message of said varying sized IP packets for which there is a change in receipt of response message compared to another request message of said varying sized IP packets, and
determine, based on said identification, an indication of a maximum datagram size supported without fragmentation for application layer data communication over UDP between the first node and the second node.