Is it possible to do dynamically throttled UPDcast transmission? We need
to throttle the data flow to a Logic Innovations IP encapsulator (with
LI's documentation attached with their permission).
The udpcast mutlticast address is considered a single route to the IPE.
The IPE sends out flow-control messages (described in document) that
shows how many bytes are available for traffic for each route every 100
milliseconds in a multicastand comes from a user specified multicast of
its own. Attached is the LI document, again with the manufactures
permission. Also, you can contact Theo Aukerman, taukerman(a)logici.com
for any additional info.
I'm asking these questions because IF this is possible, then this would
be an almost complete framework for an open source Data-casting network,
and can be used for over the air data-broadcasting from any DTV
transmitter or any other system with null packets. I currently work as
an engineer for a TV station that does data transmission, but would like
to move to an open source model.
I am having a problem to compile udpcast 20070602 with gcc 3.22.
After I ran
I got this error messages:
gcc -g -O2 -Wall -Wall -Wstrict-prototypes -Wdeclaration-after-statement
-Wshadow -DBB_FEATURE_UDPCAST_FEC -D_FILE_OFFSET_BITS=64 -DUSE_SYSLOG
-DUSE_ASSEMBLER -O6 -DNO_BB -I. -I. -c -o udp-receiver.o udp-receiver.c
cc1: unrecognized option `-Wdeclaration-after-statement'
make: *** [udp-receiver.o] Error 1
Does anyone have similar problem ?
Thanks in advance.
Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org>
National Center for High-performance Computing, Taiwan.
Public Key Server PGP Key ID: 1024D/9762755A
Fingerprint: A2A1 08B7 C22C 3D06 34DB F4BC 08B3 E3D7 9762 755A
I'm trying to get udpcast to work via PXE with our machines.
Our SEAGATE ST973402SS (SAS) harddisks are not detected automatically by the
udpcast linux kernel, which I downloaded from
> From the output of dmesg,
SCSI subsystem initialized
Fusion MPT base driver 3.04.01
Copyright (c) 1999-2005 LSI Logic Corporation
and the output of lsmod, I am guessing that the right module for the HD is
Hence, I guess I need to compile a kernel for udpcast. I read in your website
that one should use your boot image generator. However, this tool is only
distributed as a RPM binary. When using Debian's 'alien' tool to convert the
RPM to a .deb package, I get:
dpkg-gencontrol: error: current build architecture amd64 does not
appear in package's list (i386)
which makes sense, since our arch is amd64.
What's the most intelligent way to go from here? Should I get a hold of the
sources for udpcast-mkimage-20070622-1.i586.rpm to build udpcast-mkimage
myself? Where are the sources available?
Is there an easier way to go about all this?
Thanks a lot,
i builded a initrd for udpcast with cast'o matic and one with the command
line tool. With both initrd
linux trys to configure ip settings with bootp, but i have no bootp server
in the network. Can i deactivate it
or change it to dhcp? In config file the makeImage program is dhcp switched
I tryed also to change the dhcpd.conf with the two parameters:
but no success.