Difference between revisions of "Multicast notes"
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| − | *If you | + | *If you want to use apt-file do this: |
aptitude install apt-file | aptitude install apt-file | ||
apt-file update | apt-file update | ||
then set up a cronjob to do ''apt-file update'' weekly or monthly .. | then set up a cronjob to do ''apt-file update'' weekly or monthly .. | ||
Revision as of 13:21, 29 January 2012
test if multicast is working between two nodes
- this uses ssmping
Install this on all nodes .
aptitude install ssmping
run this on Node A:
ssmpingd
then on Node B:
asmping 224.0.2.1 ip_for_NODE_A_here
example output
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 want to use apt-file do this:
aptitude install apt-file apt-file update
then set up a cronjob to do apt-file update weekly or monthly ..