There is no command available in any Unix like operating systems to measure the actual bandwidth of network by sending the real packets over the network. OS developers intentionally left out this option since such type of commands will hammer the system network. But we need such kind of tool in project phase of the system where you need to perform some real tests on network bench-marking. I had found a tool which will help you to find real bandwidth of Solaris system.
If you have Solaris 11 local repository , you can install iperf using pkg install command on both the hosts in which you would like to measure the bandwidth.
root@Soalris 11.1:~# pkg install iperf
Packages to install: 1
Create boot environment: No
Create backup boot environment: No
Planning linked: 0/2 done; 1 working: zone:solzon11
Planning linked: 1/2 done; 1 working: zone:Soalris
Planning linked: 2/2 done
DOWNLOAD PKGS FILES XFER (MB) SPEED
Completed 1/1 6/6 0.1/0.1 166k/s
Downloading linked: 0/2 done; 1 working: zone:solzon11
Downloading linked: 1/2 done; 1 working: zone:Soalris 11.1_T
Downloading linked: 2/2 done
PHASE ITEMS
Installing new actions 20/20
Updating package state database Done
Updating image state Done
Creating fast lookup database Done
Executing linked: 0/2 done; 1 working: zone:solzon11
Executing linked: 1/2 done; 1 working: zone:Soalris
Executing linked: 2/2 done
root@Soalris 11.1:~#
Initiate the iperf server daemon first host,
root@Solaris11.host1:~# iperf -s -i 1 ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 1.00 MByte (default) ------------------------------------------------------------ [ 4] local 192.25.205.230 port 5001 connected with 192.255.205.230 port 37390 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 1.0 sec 0.00 Bytes 0.00 bits/sec
On the iperf client process on second host,
root@Solaris11.host2:~# iperf -n 1024M -i 1 -c 192.255.205.230 ------------------------------------------------------------ Client connecting to 192.255.205.230, TCP port 5001 TCP window size: 1.00 MByte (default) ------------------------------------------------------------ [ 4] local 192.23.205.220 port 37390 connected with 192.255.205.230 port 5001 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 1.0 sec 3.39 MBytes 28.4 Mbits/sec [ ID] Interval Transfer Bandwidth [ 4] 1.0- 2.0 sec 9.70 MBytes 81.4 Mbits/sec
You can also use the netpref tool to measure the bandwidth. (Not sure the following FTP site is still active )
The tool name called “netpref” and you can download it from this ftp site.
Environment:
Operating system :Solaris 11
NetPref Version: 2.6.0
Prerequisite:
Install the below mentioned packages.
root@UAAIS:~# pkg install gcc-3
Packages to install: 3
Create boot environment: No
Create backup boot environment: No
Services to change: 1
Planning linked: 0/2 done; 1 working: zone:uaz2
Planning linked: 1/2 done; 1 working: zone:uaz1
Planning linked: 2/2 done
DOWNLOAD PKGS FILES XFER (MB) SPEED
Completed 3/3 2041/2041 40.9/40.9 367k/s
Downloading linked: 0/2 done; 1 working: zone:uaz2
Downloading linked: 1/2 done; 1 working: zone:uaz1
Downloading linked: 2/2 done
PHASE ITEMS
Installing new actions 2333/2333
Updating package state database Done
Updating image state Done
Creating fast lookup database Done
Executing linked: 0/2 done; 1 working: zone:uaz2
Executing linked: 1/2 done; 1 working: zone:uaz1
Executing linked: 2/2 done
root@UAAIS:~# pkg install header-math
No updates necessary for this image.
Planning linked: 2/2 done
root@UAAIS:~#
Installation of NetPref
1.Copy the “netperf-2.6.0.tar.bz2” to /tmp directory and un-tar it .
root@UAAIS:/tmp# tar -xvf netperf-2.6.0.tar.bz2 x netperf-2.6.0, 0 bytes, 0 tape blocks x netperf-2.6.0/README.windows, 4348 bytes, 9 tape blocks x netperf-2.6.0/config.guess, 43499 bytes, 85 tape blocks x netperf-2.6.0/netperf.spec.in, 1807 bytes, 4 tape blocks x netperf-2.6.0/Makefile.in, 22579 bytes, 45 tape blocks
2.Comment out the below lines from /tmp/netperf-2.6.0/src/dscp.c file.
48 /*
49 * Definitions for IP type of service (ip_tos)
50 */
51
52 /* #if HAVE_NETINET_IN_SYSTM_H
53 * #include netinet/in_systm.h
54 #endif */
3.Navigate it to /tmp/netperf-2.6.0/ and run configure.
root@UAAIS:/tmp/netperf-2.6.0# ./configure checking build system type... i386-pc-solaris2.11 checking host system type... i386-pc-solaris2.11 checking target system type... i386-pc-solaris2.11 checking for a BSD-compatible install... /usr/bin/ginstall -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /usr/bin/gmkdir -p checking for gawk... gawk
4.Run make command to build the package of Netpref.
root@UAAIS:/tmp/netperf-2.6.0# make make all-recursive Making all in src Making all in missing Making all in m4 gcc -DHAVE_CONFIG_H -I. -I.. -lsocket -lnsl -lkstat -MT netperf.o -MD -MP -MF .deps/netperf.Tpo -c -o netperf.o netperf.c gcc: -lsocket: linker input file unused because linking not done gcc: -lnsl: linker input file unused because linking not done gcc: -lkstat: linker input file unused because linking not done mv -f .deps/netperf.Tpo .deps/netperf.Po
5.Install the Netpref using below command.
root@UAAIS:/tmp/netperf-2.6.0# make install Making install in src Making install in missing Making install in m4 test -z "/usr/local/bin" || /usr/bin/gmkdir -p "/usr/local/bin" /usr/bin/ginstall -c netperf netserver '/usr/local/bin' Making install in doc Making install in examples test -z "/usr/local/share/info" || /usr/bin/gmkdir -p "/usr/local/share/info" /usr/bin/ginstall -c -m 644 ./netperf.info '/usr/local/share/info' install-info --info-dir='/usr/local/share/info' '/usr/local/share/info/netperf.info' install-info: warning: no info dir entry in `/usr/local/share/info/netperf.info' test -z "/usr/local/share/man/man1" || /usr/bin/gmkdir -p "/usr/local/share/man/man1" /usr/bin/ginstall -c -m 644 'netperf.man' '/usr/local/share/man/man1/netperf.1' /usr/bin/ginstall -c -m 644 'netserver.man' '/usr/local/share/man/man1/netserver.1' root@UAAIS:/tmp/netperf-2.6.0#
6.Verify the binaries.
root@UAAIS:~# file /usr/local/bin/netperf /usr/local/bin/netperf: ELF 32-bit LSB executable 80386 Version 1 [FPU], dynamically linked, not stripped root@UAAIS:~# file /usr/local/bin/netserver /usr/local/bin/netserver: ELF 32-bit LSB executable 80386 Version 1 [FPU], dynamically linked, not stripped root@UAAIS:~#
We have successfully installed the Netpref from source code.
7.For local zones,you can simply copy the binaries.
root@UAAIS:# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared 6 uaz1 running /export/zones/uaz1 solaris excl 8 uaz2 running /export/zones/uaz2 solaris excl root@UAAIS:# cp /usr/local/bin/netperf /export/zones/uaz1/root/ root@UAAIS:# cp /usr/local/bin/netserver /export/zones/uaz1/root/ root@UAAIS:# cp /usr/local/bin/netperf /export/zones/uaz2/root/ root@UAAIS:# cp /usr/local/bin/netserver /export/zones/uaz2/root/ root@UAAIS:#
How to use Netpref?
1.Log in to the first server and start the netserver. (UAASIS 192.168.2.31 )
root@UAAIS:# /usr/local/bin/netserver Starting netserver with host 'IN(6)ADDR_ANY' port '12865' and family AF_UNSPEC root@UAAIS:#
2.Let me login to another Solaris host and run NetPerf to remote host IP.
Oracle Corporation SunOS 5.11 11.1 September 2012 root@uaz1:/# ./netperf -H 192.168.2.31 MIGRATED TCP STREAM TEST from ::ffff:0.0.0.0 () port 0 AF_INET to 192.168.2.31 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 128000 49152 49152 10.04 304.45 root@uaz1:/# ./netperf -H 192.168.2.31 MIGRATED TCP STREAM TEST from ::ffff:0.0.0.0 () port 0 AF_INET to 192.168.2.31 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 128000 49152 49152 10.08 304.71 root@uaz1:/#
As per the above about system bandwidth is 300Mb/s~.Let me check the actual system’s bandwidth,
root@uaz1:/# dladm show-vnic LINK OVER SPEED MACADDRESS MACADDRTYPE VID net0 ? 300 2:8:20:38:8d:7c random 0
So this system is limited to 300Mb/s and netperf also showing the same.
3.Let me login to another host and test the tool again.
root@uaz2:/# ./netperf -H 192.168.2.31 MIGRATED TCP STREAM TEST from ::ffff:0.0.0.0 () port 0 AF_INET to 192.168.2.31 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 128000 49152 49152 10.04 514.72 root@uaz2:/# root@uaz2:/#dladm show-vnic LINK OVER SPEED MACADDRESS MACADDRTYPE VID net0 ? 500 2:8:20:87:d2:88 random 0 root@UAAIS:~#
Perfect.
4. we have already set the bandwidth limit between host as 100Mb/s between database server and backup server.Let me run the test on those hosts.
root@uaz2:/# ./netserver Starting netserver with host 'IN(6)ADDR_ANY' port '12865' and family AF_UNSPEC root@uaz2:/# ssh uaz1 root@uaz1:/# ./netperf -H 192.168.2.52 MIGRATED TCP STREAM TEST from ::ffff:0.0.0.0 () port 0 AF_INET to 192.168.2.52 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 128000 49152 49152 10.02 104.49 root@uaz1:/#
5.Verify the network settings between these hosts.
root@uaz1:~# flowadm FLOW LINK IPADDR PROTO LPORT RPORT DSFLD uaz2-flow-control net0 RMT:192.168.2.52/32 -- -- -- -- root@uaz1:~# flowadm show-flowprop FLOW PROPERTY VALUE DEFAULT POSSIBLE uaz2-flow-control maxbw 100 -- -- root@uaz1:~#
Just 100Mb/s speed has been set between these two hosts.So our Netpref tool has produced some awesome results.
Note:Do not try this tool on production environment.It will hammer complete network bandwidth. This tool will be mostly used for network bench-marking
Hope you will like this tool.Thank you visiting UnixArena.
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