@node Niceness
+@cindex niceness
+@cindex priority
@unnumbered Niceness
Each transmitted packet has niceness level, as Unix has @command{nice}
that packet is "nicer" and allows other to bypass him -- that means
lower transmission precedence.
-Send big files with higher nicer level! That will guarantee you that
+Send big files with higher nice level! That will guarantee you that
higher priority packets, like mail messages, will pass first, even when
-lower priority packet was already been partly downloaded.
+lower priority packet was already been partially downloaded.
-There are default niceness levels built-in for @ref{nncp-mail},
+There are default niceness levels built-in for @ref{nncp-exec},
@ref{nncp-file} and @ref{nncp-freq} commands. But pay attention that it
can give information about underlying payload to the adversary!
+
+There are 1-255 niceness levels. They could be specified either as
+integer, or using aliases with delta modifiers:
+
+@table @emph
+@vindex FLASH
+@item FLASH (F)
+Urgent priority.
+@vindex PRIORITY
+@item PRIORITY (P)
+High priority. Command execution/mail use that priority by default.
+@vindex NORMAL
+@item NORMAL (N)
+Normal priority. File requests use that priority by default.
+@vindex BULK
+@item BULK (B)
+Bundles shipped on a "least effort" basis. File transmission use that
+priority by default.
+@end table
+
+@verbatim
+ 1: F-31 65: P-31 129: N-31 193: B-31
+ 2: F-30 66: P-30 130: N-30 194: B-30
+ ... ... ... ...
+32: F 96: P 160: N 224: B
+33: F+1 97: P+1 161: N+1 225: B+1
+34: F+2 98: P+2 162: N+2 226: B+2
+ ... ... ... ...
+64: F+32 128: P+32 192: N+32 255: B+31 | MAX
+@end verbatim
+
+Precedence could be specified both with single-letter aliases and with
+whole strings. They are case insensitive. @emph{MAX} is an alias for 255
+niceness level.