Use the “pathmtu” command to display and configure the PathMTU Discovery service function.
View settings
msh> pathmtu
Configuration
msh> pathmtu {on|off}
The default is “on”.
If the MTU size of the sent data is larger than the router's MTU, the router will declare it impassable, and communication will fail. If this happens, selecting the “pathmtu” to “on” optimizes the MTU size and prevents data output failure.
Depending on the environment, information might not be obtained from the router, and communication will fail. If this happens, select the “pathmtu” to “off”.
