atmtest(1M)atmtest(1M)NAMEatmtest - simple transmit and receive tests for ATM.
SYNOPSISatmtest-X { rw | ro | wo } [ -i port# ] [ -C ] [ -n npkts ]
[ -P -e bps ] [ -v vci ] [ -p vpi ]
DESCRIPTIONatmtest transmits and/or receives data over ATM permanent virtual
circuits. The most common use for atmtest is to perform loop-back tests
either by directly connecting the ATM output to the ATM input or through
an ATM switch (through a permanent virtual circuit routed back to the
host).
atmtest has the following options:
-X {ro|wo|rw}
This specifies the type of test atmtest will run: read-only (ro),
write-only (wo), or read-write (rw). The -X rw option is a loop-
back test. atmtest expects to receive the ATM data on the same
port/VPI/VCI that it sends.
-i port#
Specifies the ATM port on which the test is performed. The default
is 0.
-C Do data integrity checks by filling transmitted packets with random
data and/or checking random data on receive side. This can slow
down the operation of atmtest.
-n <num>
Specify the number of packets until the test completes.
-P -e <bps>
The -P option requests a constant bit-rate (CBR) connection when
requesting a PVC. It should be used in conjunction with the -e
option which specifies the (payload) bits-per-second to be requested
when the PVC is created.
-v <vci>
Specify the VCI of the virtual circuit used for the test. The value
can be either hexadecimal or decimal.
-p <vpi>
Specify the VPI of the virtual circuit used for the test. The value
can be either hexadecimal or decimal.
EXAMPLESatmtest-X rw
This performs a simple loop-back test on port 0. The port should
either be connected in a loop-back fashion or the ATM switch should
have the permanent virtual circuit routed back to the host.
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atmtest(1M)atmtest(1M)atmtest-i1 -X rw -C -p1 -v181
This performs a simple loop-back test over port 1 using VPI 1 and
VCI 181. It also performs data integrity tests.
WARNINGS
When a port is directly connected to itself in loop-back (i.e. with no
intermediate switch), the loop-timing feature of the SONET phy should be
disabled with atmconfig -o 0. See atmconfig(1m) for a discussion of SONET
loop-timing.
SEE ALSOatm(7M), atmconfig(1M), atmstat(1M)
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