Was wonder if there was a tool or program I could run to measure throughput on our CentoS 4.x server. Our current dedicated host provider is charging us by how much throughput we are using and I just want to see if their numbers add up to whatever I get using a throughput tool of some kind.
... (6 Replies)
As a rule of thumb in doing calculations, what figure would you use in Mbytes/sec? I know the answer varies grealty on the topolgy of the network but I wonde what newteok engineers use a rough rule of thumb?
Many thanks. (1 Reply)
Hey guys
First post... and im not exactly a solaris guru but here goes
Ive setup a solaris 10 box with a raidz2 set of 6 disks...
I have also setup Samba with open shares for some CIFs access...
now my issue is that when i transfer large files to it the network performance contantly... (8 Replies)
Hello gurus,
I have the following configuration in the server side:
# dladm show-aggr
key: 33 (0x0021) policy: L4 address: 0:14:4f:6c:11:8 (auto)
device address speed duplex link state
nxge0 0:14:4f:6c:11:8 1000 Mbps ... (3 Replies)
Hello,
First time poster here hoping to get some help with ns2.
I've recently started using ns2(first time user) but I'm having difficulty getting the results I'm after.
I am trying to set up a network with wireless nodes(5-15 nodes) and then use xgraph to display a timing diagram,... (0 Replies)
Hey Guys,
Does anybody know, which OID's of Net-SNMP is used to collect throughput and bandwith usage of machine??
I got these OID's
..iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifOutOctets
..1.3.6.1.2.1.2.2.1.16
... (1 Reply)
Hi All,
I have done IEEE 802.3ad Dynamic link aggregation bond configuration with name bond0 which has 4 slaves (each 25GB/s) in it on cent os 6.8. Issue i am facing is bonding throughput is only 50GB/s not 100GB/s. below are the configuration files :
DEVICE=bond0
IPADDR=xx.xx.xx.xx... (1 Reply)
Discussion started by: omkar.jadhav
1 Replies
LEARN ABOUT DEBIAN
iperf
IPERF(1) User Manuals IPERF(1)NAME
iperf - perform network throughput tests
SYNOPSIS
iperf -s [ options ]
iperf -c server [ options ]
iperf -u -s [ options ]
iperf -u -c server [ options ]
DESCRIPTION
iperf is a tool for performing network throughput measurements. It can test either TCP or UDP throughput. To perform an iperf test the
user must establish both a server (to discard traffic) and a client (to generate traffic).
GENERAL OPTIONS -f, --format
[kmKM] format to report: Kbits, Mbits, KBytes, MBytes
-h, --help
print a help synopsis
-i, --interval n
pause n seconds between periodic bandwidth reports
-l, --len n[KM]
set length read/write buffer to n (default 8 KB)
-m, --print_mss
print TCP maximum segment size (MTU - TCP/IP header)
-o, --output <filename>
output the report or error message to this specified file
-p, --port n
set server port to listen on/connect to to n (default 5001)
-u, --udp
use UDP rather than TCP
-w, --window n[KM]
TCP window size (socket buffer size)
-B, --bind <host>
bind to <host>, an interface or multicast address
-C, --compatibility
for use with older versions does not sent extra msgs
-M, --mss n
set TCP maximum segment size (MTU - 40 bytes)
-N, --nodelay
set TCP no delay, disabling Nagle's Algorithm
-v, --version
print version information and quit
-V, --IPv6Version
Set the domain to IPv6
-x, --reportexclude
[CDMSV] exclude C(connection) D(data) M(multicast) S(settings) V(server) reports
-y, --reportstyle C|c
if set to C or c report results as CSV (comma separated values)
SERVER SPECIFIC OPTIONS -s, --server
run in server mode
-U, --single_udp
run in single threaded UDP mode
-D, --daemon
run the server as a daemon
CLIENT SPECIFIC OPTIONS -b, --bandwidth n[KM]
set target bandwidth to n bits/sec (default 1 Mbit/sec). This setting requires UDP (-u).
-c, --client <host>
run in client mode, connecting to <host>
-d, --dualtest
Do a bidirectional test simultaneously
-n, --num n[KM]
number of bytes to transmit (instead of -t)
-r, --tradeoff
Do a bidirectional test individually
-t, --time n
time in seconds to transmit for (default 10 secs)
-F, --fileinput <name>
input the data to be transmitted from a file
-I, --stdin
input the data to be transmitted from stdin
-L, --listenport n
port to receive bidirectional tests back on
-P, --parallel n
number of parallel client threads to run
-T, --ttl n
time-to-live, for multicast (default 1)
-Z, --linux-congestion <algo>
set TCP congestion control algorithm (Linux only)
ENVIRONMENT
TCP_WINDOW_SIZE
Controls the size of TCP buffers.
DIAGNOSTICS
This section needs to be filled in.
BUGS
Exit statuses are inconsistent. The threading implementation is rather heinous.
AUTHORS
Iperf was originally written by Mark Gates and Alex Warshavsky. Man page and maintence by Jon Dugan <jdugan at x1024 dot net>. Other con-
tributions from Ajay Tirumala, Jim Ferguson, Feng Qin, Kevin Gibbs, John Estabrook <jestabro at ncsa.uiuc.edu>, Andrew Gallatin <gallatin
at gmail.com>, Stephen Hemminger <shemminger at linux-foundation.org>
SEE ALSO
http://iperf.sourceforge.net/
NLANR /DAST APRIL 2008 IPERF(1)