This section describes now to set a path maximum transmission unit (PMTU) on an interface. This setting enables a device to send packets based on proper MTUs across a network. This helps prevent packet fragmentation, reduce the burden of the devices, and efficiently use network resources.
If many ICMPv6 error packets are sent on the network within a short period, network congestion may occur. To prevent this situation, you can set the maximum number of ICMPv6 error packets that can be sent within a specified period.