Commit 71960357 authored by Mike Hibler's avatar Mike Hibler

More old stuff: document Frisbee MC options.

parent 8056fc55
......@@ -414,14 +414,33 @@ DISABLE_EXPORTS_SETUP=0
#
# FRISEBEEMCASTADDR Starting multicast address to use. Each frisbeed
# download server instance gets a unique address.
# FRISEBEEMCASTPORT Starting port for download and upload servers.
# Each server gets a unique port number.
#
# Traditionally, we have used a subset of 234/8 which is officially
# "unassigned" according to IANA. You would probably be better off using the
# 239/8 range which is officially "administratively scoped" (i.e., for local
# use). At any rate, you should not allow this traffic beyond your router.
#
# Note that MC addresses ARE NOT REUSED. They will increment from the start
# value up to the next /8 boundary, at which point frisbee WILL STOP WORKING.
# So if you start at "234.5.6" they will increment til it reaches 235.0.0.0.
# The fact that we define the address to be three octets is historical (as
# is our not reusing MC addresses).
#
# FRISEBEEMCASTPORT When non-zero, starting port for download (UDP) and
# upload (TCP) servers. Each instance of a server gets
# a unique port number. When zero, the server is free
# to choose any ephemeral port and NUMPORTS is ignored.
#
# FRISEBEENUMPORTS When non-zero, limits the range of ports used for
# download/upload to MCASTPORT to MCASTPORT+NUMPORTS-1.
# When zero, any port can be used.
# When zero, any port at or above MCASTPORT can be used.
#
# A value of 0 for MCASTPORT is the most efficient setting as it allows the
# kernel to choose an available port. Otherwise, the server must try binding
# to each port in the indicated range until it succeeds.
#
FRISEBEEMCASTADDR="234.5.6"
FRISEBEEMCASTPORT=3564
FRISEBEEMCASTPORT=0
FRISEBEENUMPORTS=0
#
......
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