This disclosure is directed generally to systems and methods for implementation of Jumbo frames in an existing network stack. In some embodiments, a connection handler of a device receives data having a size greater than an Ethernet frame size. That data includes header data and payload data. The device partitions the data into segments including a first segment and a second segment. The first segment includes the header data and a first portion of the payload data, while the second segment includes a second portion of the payload data. The device stores the first and second segments in first and second network buffers, respectively, of a pool of network buffers. The device forms a packet chain of the first and second network buffers having a size greater than the Ethernet frame size. The device transmits the packet chain via a network connection.