Multicast notes: Difference between revisions

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=ssmping notes=
=ssmping notes=
there are a few other programs included in ssmping which may be of use.  here is a list of the files in the package:
*there are a few other programs included in ssmping which may be of use.  here is a list of the files in the package:


  apt-file list ssmping
  apt-file list ssmping
Line 50: Line 50:
ssmping: /usr/share/man/man1/ssmpingd.1.gz
ssmping: /usr/share/man/man1/ssmpingd.1.gz
</pre>
</pre>
*If you do not have apt-file installed then:
aptitude install apt-file
apt-file update
then set up a cronjob to do ''apt-file update'' weekly / monthly ..

Revision as of 11:55, 29 January 2012

Notes about multicast

test if multicast is working between two nodes

  • this uses ssmping

Install this on all nodes .

aptitude install ssmping

On Node A:

ssmpingd

On Node B:

asmping 224.0.2.1 ip_for_other_host_here

example output from Node A:

asmping joined (S,G) = (*,224.0.2.234)
pinging 192.168.8.6 from 192.168.8.5
  unicast from 192.168.8.6, seq=1 dist=0 time=0.221 ms
  unicast from 192.168.8.6, seq=2 dist=0 time=0.229 ms
multicast from 192.168.8.6, seq=2 dist=0 time=0.261 ms
  unicast from 192.168.8.6, seq=3 dist=0 time=0.198 ms
multicast from 192.168.8.6, seq=3 dist=0 time=0.213 ms
  unicast from 192.168.8.6, seq=4 dist=0 time=0.234 ms
multicast from 192.168.8.6, seq=4 dist=0 time=0.248 ms
  unicast from 192.168.8.6, seq=5 dist=0 time=0.249 ms
multicast from 192.168.8.6, seq=5 dist=0 time=0.263 ms
  unicast from 192.168.8.6, seq=6 dist=0 time=0.250 ms
multicast from 192.168.8.6, seq=6 dist=0 time=0.264 ms
  unicast from 192.168.8.6, seq=7 dist=0 time=0.245 ms
multicast from 192.168.8.6, seq=7 dist=0 time=0.260 ms

for more information see

man ssmping

and

less /usr/share/doc/ssmping/README.gz

ssmping notes

  • there are a few other programs included in ssmping which may be of use. here is a list of the files in the package:
apt-file list ssmping
ssmping: /usr/bin/asmping
ssmping: /usr/bin/mcfirst
ssmping: /usr/bin/ssmping
ssmping: /usr/bin/ssmpingd
ssmping: /usr/share/doc/ssmping/README.gz
ssmping: /usr/share/doc/ssmping/changelog.Debian.gz
ssmping: /usr/share/doc/ssmping/copyright
ssmping: /usr/share/man/man1/asmping.1.gz
ssmping: /usr/share/man/man1/mcfirst.1.gz
ssmping: /usr/share/man/man1/ssmping.1.gz
ssmping: /usr/share/man/man1/ssmpingd.1.gz
  • If you do not have apt-file installed then:
aptitude install apt-file
apt-file update

then set up a cronjob to do apt-file update weekly / monthly ..