ampstat(1) Qualcomm Atheros Open Powerline Toolkit ampstat(1)
NAME
ampstat - Qualcomm Atheros AR7x00 Link Statistics
SYNOPSIS
ampstat [options] [device] [device] [...]
DESCRIPTION
The Atheros Device Statistics Utility polls a device and prints network and link statistics in various formats suitable
for use by other programs. This is a work in progress so user feedback is encouraged. Link statistics are only valid
between one powerline device and another.
This program is part of the Qualcomm Atheros Powerline Toolkit. See the plc man page for an overview and installation
instructions.
COMMENTS
This program is identical to legacy program int6kstat but uses version 1 of the Qualcomm Atheros VS_NW_INFO Atheros ven‐
dor-specific message. Older firmware versions may not recognize this message version.
OPTIONS
-C Clear device link statistics using VS_LNK_STATS. Statistics are read and cleared then displayed. The statistics
that are read and displayed depend on options -d, -p and -s but all link statistics are cleared.
-d direction
Return statistics for the specified direction using VS_LNK_STATS. Direction can be 0=tx, 1=rx, 2=both or "rx",
"tx" or "both".
-e Redirects stderr messages to stdout. By convention status 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 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.
-l count
Define the number of times that the command will be repeated for each device specified. Normally, you will repeat
operations on one device only.
-m Displays network membership information, as seen by one device, using VS_NW_INFO. Use option -t for complete net‐
work topology seen by the local host.
-p peernode
Ethernet hardware address of the peer node for VS_LNK_STATS. This option is required for all Link ID values
except 0xFC. The default is 00:00:00:00:00:00.
-q Enter quiet mode. Progress messages are suppressed.
-s linkid
The Link ID for VS_LNK_STATS. Link ID values range from 0 through 255 but not all values are accepted by the
device firmware. Values may be expressed in decimal, binary prefixed with "0b" or hexadecimal prefixed by "0x".
Many valid values can be expressed by name. Valid values are listed and explained under LINKID. The default Link
ID is 0xFC.
-t Display network topology using VS_SW_VER and VS_NW_INFO messages. This option is similar to option -m but pro‐
vides complete network topology plus device hardware and firmware version. Topology is always relative to the
local host, or local hosts if present. Powerline devices that appear on the command line are not used for this
operation. Older QCA powerline devices may fail to respond to this this option. In that event, use program
int6kstat or plcstat.
-v Enter verbose mode. All Etherenet frames sent or received by the program are displayed on stdout.
-w seconds
Defines the number of seconds to wait before repeating command line options. This option has no effect unless
option -l is also specified with a non-zero value.
-?, --help
Print program help summary on stdout. This option takes precedence over other options on the command line.
-!, --version
Print program version information on stdout. This option takes precedence over other options on the command line.
Use this option when sending screen dumps to Atheros Technical Support so that they know exactly which version of
the Linux Toolkit you are using.
ARGUMENTS
device The MAC address of some powerline device. More than one address may be specified. If more than one address is
specified then operations are performed on each device in turn. The default address is local. See DEVICES for
information about symbolic device addresses.
LINKID
0x00,CSMA-CAP0
Display CSMA statistics for CAP0 traffic using a single peer node. The peer node MAC address must be specified
using option -p.
0x01,CSMA-CAP1
Display CSMA statistics for CAP1 traffic using a single peer node. The peer node MAC address must be specified
using option -p.
0x02,CSMA-CAP2
Display CSMA statistics for CAP2 traffic using a single peer node. The peer node MAC address must be specified
using option -p.
0x03,CSMA-CAP3
Display CSMA statistics for CAP3 traffic using a single peer node. The peer node MAC address must be specified
using option -p.
0xF8,CSMA-PEER
Display CSMA statistics for all traffic using a single peer node. The peer node MAC address must be specified
using option -p.
0xFC,CSMA-ALL
Display CSMA statistics for all traffic with all peer nodes. A peer node MAC address is not needed and will be
ignored if provided. This value is the default for option -s.
DEVICES
Powerline devices use Ethernet Media Access Control (MAC) addresses. A MAC address is a 48-bit value entered as 12 hexa‐
decimal digits in upper, lower or mixed character case. Octets may be separated with colons for clarity. For example,
"00b052000001", "00:b0:52:00:00:01" and "00b052:000001" are valid and equivalent.
The following MAC addresses are special and may be entered by name instead of number.
all Same as "broadcast".
broadcast
A synonym for the Ethernet broadcast address, FF:FF:FF:FF:FF:FF. All devices, whether local, remote or foreign
recognize messages sent to this address. A remote device is any device at the far end of a powerline connection.
A foreign device is any device not manufactured by Atheros.
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.
REFERENCES
See the Qualcomm Atheros HomePlug AV Firmware Technical Reference Manual for more information.
DISCLAIMER
Atheros HomePlug AV Vendor Specific Management Message Entry 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 mes‐
sage structure and content in future firmware releases without any obligation to notify or compensate users of this pro‐
gram.
EXAMPLES
None.
SEE ALSO
plc(1), amplist(1), amprate(1), ampstat(1), amptone(1), amptool(1)
CREDITS
Charles Maier <cmaier@qca.qualcomm.com>
open-plc-utils-0.0.3 Mar 2014 ampstat(1)