ppp mru mruSize
no ppp mru
Command introduced before JUNOSe Release 7.1.0.
Sets the maximum allowable size in bytes of the maximum receive unit for PPP or MLPPP interfaces. If you issue the command in the context of an encapsulated PPP or MLPPP interface, it affects only that interface. If you issue the command in the context of an MLPPP bundle, it affects all member links within that bundle. The no version restores the default value, the lower-layer MRU minus the PPP header length, which varies according to module type.
Interface Configuration, Profile Configuration, Subinterface Configuration