Package fragmentation

Kaspersky SD-WAN checks whether fragmentation of traffic packets is supported on CPE devices. A packet fragmentation test is started automatically. When each CPE device is enabled, it sends two ICMP requests to the IP addresses that you specified when creating or editing SD-WAN interfaces of the WAN type or in the configuration file of the controller.

The ICMP requests have a packet size of 1600 bytes. If at least one of these requests receives a response, a conclusion is made that the CPE device supports packet fragmentation. You can view the result of the fragmentation test result in the Fragmentation column of the table of CPE devices or the link table.