SYSTEMS AND METHODS FOR PATH MAXIMUM TRANSMISSION UNIT DISCOVERY

摘要

An information handling system is provided. The information handling system includes a plurality of network devices. One of the plurality of network devices is a source device and another of the plurality of network devices is a destination device. If path maximum transmission unit (PMTU) information for a path between the source device and the destination device is not known, the source device sends a PMTU send packet to the destination device, and the destination device sends a PMTU receive packet with a received PMTU value to the source device. Other associated systems and methods for PMTU discovery are also provided.

主权项

1. An a first network device in an information handling system, the first network device comprising:
a plurality of ports for sending and receiving packets, at least one of the ports having an associated maximum transmission unit equal to a first value; one or more processors in communication with the plurality of ports; and a memory in communication with the one or more processors, the memory including a path maximum transmission unit (PMTU) table that associates each of a plurality of destination addresses with a maximum transmission unit (MTU) value in an MTU field; and wherein:
the first network device is configured to send a PMTU send packet when a particular destination address not having an associated MTU value in an associated MTU field of the PMTU table is to be accessed.