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Bandwidth Management Tools 0.3.0 (Stable branch)

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Special Forums News, Links, Events and Announcements Software Releases - RSS News Bandwidth Management Tools 0.3.0 (Stable branch)
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Old 01-03-2008
Bandwidth Management Tools 0.3.0 (Stable branch)
Image Bandwidth Management Tools is a total bandwidth management solution for Linux and can be used for firewalling, traffic graphing, and shaping. It is not based on any currently-available bandwidth management software and supports packet queues, bursting, complex traffic flow hierarchies, flow groups, traffic logging, and a simple real-time monitoring front-end. License: GNU General Public License (GPL) Changes:
More sane error handling in ipq.c. The buffer size has been fixed to handle larger MTUs. The ipq interface has been updated. There are various code cleanups. This release adds parameters, report-format, report-filename, and flow-mode. It installs RRD Tool when installing BWM Tools. It fixes the log directory. It has better error handling while generating graphs and RRD data. It fixes a bug preventing graphing from working.Image

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LEARN ABOUT V7

dummynet

DUMMYNET(4)						   BSD Kernel Interfaces Manual 					       DUMMYNET(4)

NAME

     dummynet -- traffic shaper, bandwidth manager and delay emulator

DESCRIPTION

     The dummynet system facility permits the control of traffic going through the various network interfaces, by applying bandwidth and queue
     size limitations, implementing different scheduling and queue management policies, and emulating delays and losses.

     The user interface for dummynet is implemented by the ipfw(8) utility, so please refer to the ipfw(8) manpage for a complete description of
     the dummynet capabilities and how to use it.

   Kernel Options
     The following options in the kernel configuration file are related to dummynet operation:

	   IPFIREWALL		     enable ipfirewall (required for dummynet)
	   IPFIREWALL_VERBOSE	     enable firewall output
	   IPFIREWALL_VERBOSE_LIMIT  limit firewall output
	   DUMMYNET		     enable dummynet operation
	   HZ			     set the timer granularity

     Generally, the following options are required:

	   options IPFIREWALL
	   options DUMMYNET
	   options HZ=1000	   # strongly recommended

     Additionally, one may want to increase the number of mbuf clusters (used to store network packets) according to the sum of the bandwidth-
     delay products and queue sizes of all configured pipes.

SEE ALSO

     setsockopt(2), if_bridge(4), ip(4), ipfw(8), sysctl(8)

HISTORY

     The dummynet facility was initially implemented as a testing tool for TCP congestion control by Luigi Rizzo <luigi@iet.unipi.it>, as
     described on ACM Computer Communication Review, Jan.97 issue.  Later it has been modified to work at the IP and bridging levels, integrated
     with the ipfw(4) packet filter, and extended to support multiple queueing and scheduling policies.

BSD
								 October 28, 2002							       BSD