The status of Path MTU Discovery support is displayed, where status is either: ENABLED or DISABLED. If Path MTU Discovery support is enabled, then TCP/IP will dynamically discover the Path MTU(PMTU), which is the minimum of the MTUs of each hop in the path, necessary to prevent fragmentation of datagrams sent on that path.

If Path MTU Discovery support is disabled, then large datagrams might be fragmented.

The state of Path MTU Discovery support is changed as the result of an SNMP SET request on the ibmMvsPathMtuDscEnabled MIB object.