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Source code changes of the file "man/bwping.8" between
bwping-1.16.tar.gz and bwping-1.17.tar.gz

About: BWPing is a tool to measure bandwidth and response times between two hosts using Internet Control Message Protocol (ICMP) echo request/echo reply mechanism.

bwping.8  (bwping-1.16):bwping.8  (bwping-1.17)
skipping to change at line 51 skipping to change at line 51
-v volume -v volume
Sets the volume to transfer in bytes. Sets the volume to transfer in bytes.
AUTHORS AUTHORS
Oleg Derevenetz <oleg.derevenetz@gmail.com> Oleg Derevenetz <oleg.derevenetz@gmail.com>
BUGS BUGS
None known. None known.
NOTES NOTES
This utility uses raw sockets to deal with ICMP messages, so root privile This utility uses raw sockets to deal with ICMP messages, so it may requi
ges are required to run it. re root privileges or extended
capabilities (such as CAP_NET_RAW on Linux) to run. It can also be run as
setuid root.
Although bwping and bwping6 does not require any special software on the Although bwping and bwping6 does not require any special software on th
remote host (only the ability e remote host (only the ability
to respond on ICMP echo request messages), there are some special requ to respond on ICMP echo request messages), there are some special require
irements to network infrastruc- ments to network infrastruc-
ture, local and remote host performance: ture, local and remote host performance:
1. There should be no ICMP echo request/reply filtering on the network. This includes QoS mechanisms 1. There should be no ICMP echo request/reply filtering on the network . This includes QoS mechanisms
(which often affects ICMP) at any point in the testing path; (which often affects ICMP) at any point in the testing path;
2. Local host should have enough CPU resources to send ICMP echo reques 2. Local host should have enough CPU resources to send ICMP echo request
t messages with given rate, and messages with given rate, and
remote host should quickly respond on these messages and should have no I remote host should quickly respond on these messages and should have no
CMP bandwidth limiting turned ICMP bandwidth limiting turned
on. on.
If some of these requirements are not satisfied, then measurement res If some of these requirements are not satisfied then the measurement resu
ults will be inadequate or fail lts will be inadequate or fail
completely. In general, for testing bandwidth where QoS is implemented, a completely. In general, for testing bandwidth where QoS is implemented
lways test with traffic that , always test with traffic that
matches the QoS class to be tested. matches the QoS class to be tested.
SEE ALSO SEE ALSO
netstat(1), ping(8) netstat(1), ping(8)
bwping(8) bwping(8)
 End of changes. 5 change blocks. 
15 lines changed or deleted 17 lines changed or added

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