coqos_man - Set and monitor bandwidth
coqos_man [options] limit [device] [...]
This page is under construction.
Monitors the bandwidth being used and sets a bandwidth limit. If the bandwidth limit is exceeded it will suspend the lower priority streams in priority order until the bandwidth being used is less than the limit.
This program is part of the Qualcomm Atheros Powerline Toolkit. See the plc man page for an overview and installation instructions.
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-e |
Redirects stderr messages to stdout. By convention progress messages and error messages are printed on stderr while primary program output is printed on stdout. This option prints all output on stdout in cases where this is desired. |
-i interface
Select the host Ethernet interface. All requests are sent via this host interface and only reponses received via this host interface are recognized. The default interface is eth1 because most people use eth0 as their principle network connection; however, if environment string "PLC" is defined then it takes precedence over the default interface. This option then takes precedence over either default.
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-q |
Suppresses status messages on stderr. | ||
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-r |
Display relative memory offsets on output. This option is the default. | ||
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-v |
Prints additional information on stdout. In particular, this option dumps outgoing Ethernet packets on stdout. |
-?,--help
Displays program help information on stderr. This option takes precedence over all other options on the command line except version information.
-!,--version
Displays program version information on stderr. This option takes precedence over all other options on the command line except help information. Use this option when sending screen dumps to Atheros technical staff.
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limit |
The bandwidth limit, in kbps, expressed as a decimal integer. This argument is required. The range is 10 through 90000. | ||
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device |
The MAC address of some powerline device. More than one address may be specified on the command line. If more than one address is specified then operations are performed on each device in turn. The default address is "local". See DEVICES for more information. |
Ethernet MAC addresses are expressed as six hexadecimal octets optionally separated by colon. For example, the Qualcomm Atheros Local Management Address (LMA) of "00b052000001" may also be entered as "00:b0:52:00:00:01" or "00b052:000001". Addresses are case insensitive and quotes are optional. In addition, some special addresses may be entered by name rather than number where names are case sensitive.
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all |
A synonym for the "broadcast" address, described next. |
broadcast
A synonym for the Ethernet broadcast address, FF:FF:FF:FF:FF:FF. All devices, whether local, remote or foreign will respond to this address.
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local |
A synonym for the Qualcomm Atheros vendor specific Local Management Address (LMA), 00:B0:52:00:00:01. All local Atheros devices recognize this address but remote and foreign devices do not. A remote device is any device at the far end of a powerline connection. A foreign device is any device not manufactured by Atheros. |
See the Qualcomm Atheros HomePlug AV Firmware Technical Reference Manual for more information.
Atheros HomePlug AV Vendor Specific Management Message structure and content is proprietary to Qualcomm Atheros, Ocala FL USA. Consequently, public information may not be available. Qualcomm Atheros reserves the right to modify message structure and content in future firmware releases without any obligation to notify or compensate users of this program.
The following example suspends streams if the bandwidth used exceeds 20mbps.
# coqos_man 20000 00:B0:52:BA:BE:01
coqos_add(1), coqos_info(1), coqos_mod(1), coqos_rel(1)
Bill Wike
Nathaniel Houghton
Charles Maier