Message segmentation

Patent metadata

Field	Value
Publication number	US-10938965-B2
Application number	US-201916442576-A
Country	US
Kind code	B2
Filing date	Jun 17, 2019
Priority date	Jun 18, 2018
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A system including a network interface layer, and a physical network connection configured to connect with a networking medium, wherein the network interface layer is configured to: A) receive a user datagram protocol (UDP) message for sending, the UDP message having a length L, and a desired maximum network message size (MSS), B) segment the UDP message in accordance with the MSS into a plurality of message segments, each message segment having a size no greater than MSS, and adjust information in each of the plurality of message segments, and C) send the plurality of message segments via the physical network connection to a networking medium. Related apparatus and methods are also provided.

First claim

What is claimed is:

1. A system comprising:
a network interface layer; and
a physical network connection configured to connect with a networking medium, wherein:
the network interface layer is configured to:
A) receive a user datagram protocol (UDP) message for sending, the UDP message having a length L, and a desired maximum network message size (MSS);
B) segment the UDP message in accordance with the MSS into a plurality of message segments, each message segment having a size no greater than MSS, and adjust UDP header information in each of the plurality of message segments; and
C) send the plurality of message segments via the physical network connection to a networking medium,

wherein the UDP message and the MSS are received from an application layer external to the system.

2. The system according to claim 1 and wherein a vector of message segment sizes indicating sizes for each of the message segments is also received from the application layer, and the network interface layer is configured to segment the UDP message into message segments in accordance with the vector of message segment sizes.

3. The system according to claim 1 and wherein the length L exceeds a maximum transmission unit (MTU) length associated with the networking medium.

4. The system according to claim 3 and wherein the networking medium comprises an Ethernet networking medium.

5. The system according to claim 1 and wherein the plurality of message segments comprises: N message segments each of length MSS; and one message segment of length less than MSS.

6. The system according to claim 1 and wherein the network interface layer is comprised in a network interface controller (NIC).

7. The system according to claim 6 and wherein the physical network connection is also comprised in the NIC.

8. A method comprising:
receiving, at a network interface layer, a user datagram protocol (UDP) message for sending, the UDP message having a length L;
the network interface layer segmenting the UDP message in accordance with a desired maximum network message size (MSS) into a plurality of message segments, each message segment having a size no greater than MSS, and adjusting UDP header information in each of the plurality of message segments; and
the network interface layer sending the plurality of message segments via a physical network connection to a networking medium,

wherein the UDP message and the MSS are received from an application layer external to the network interface layer and to the physical connection.

9. The method according to claim 8 wherein a vector of message segment sizes indicating sizes for each of the message segments is also received from the application layer, and the network interface layer is configured to segment the UDP message into message segments in accordance with the vector of message segment sizes.

10. The method according to claim 8 and wherein the length L exceeds a maximum transmission unit (MTU) length associated with the networking medium.

11. The method according to claim 10 and wherein the networking medium comprises an Ethernet networking medium.

12. The method according to claim 8 and wherein the plurality of message segments comprises: N message segments of length MSS; and one message segment of length less than MSS.

13. The method according to claim 8 and wherein the network interface layer is comprised in a network interface controller (NIC).

14. The method according to claim 13 and wherein the physical network connection is also comprised in the NIC.

Assignees

• Mellanox Technologies Ltd

Inventors

• Pismenny Boris
• Liss Liran
• Kuperman Yossi
• Moyal Roee

Classifications

• H04L2101/663

  Transport layer addresses, e.g. aspects of transmission control protocol [TCP] or user datagram protocol [UDP] ports · CPC title

• H04L61/5007

  Internet protocol [IP] addresses · CPC title

• H04L69/164

  Adaptation or special uses of UDP protocol · CPC title

• H04L69/321

  Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers · CPC title

• H04L69/22 Primary

  Parsing or analysis of headers · CPC title