These are the sizes, given in decimal bytes, of various XDR structures used in the NFS version 3 protocol:
The maximum size in bytes of the opaque file handle.
The size in bytes of the opaque cookie verifier passed by READDIR and READDIRPLUS.
The size in bytes of the opaque verifier used for exclusive CREATE.
The size in bytes of the opaque verifier used for asynchronous WRITE.