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.
- -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.
- -q
- Suppresses status messages on stderr.
- -r
- Display relative memory offsets on output. This option is the default.
- -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.
- limit
- The bandwidth limit, in kbps, expressed as a decimal integer. This
argument is required. The range is 10 through 90000.
- 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.
- 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.
- 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