SQL*Plus Client Loses Connection to Multicloud Database

This topic describes how to resolve the problem of an SQL*Plus client repeatedly losing connection to a database in a multicloud environment.

If your SQL*Plus client repeatedly loses connection with your multicloud database, you may need to adjust the MTU (maximum transmission unit) setting of your SQL*Plus client. Network firewalls that block large packets (jumbo frames) can cause connection failures for SQL*Plus clients when the MTU setting is not appropriately sized for the firewall setting.