Difference between revisions of "Multicast notes"

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Line 2: Line 2:
  
 
=test if multicast is working on a network=
 
=test if multicast is working on a network=
 +
*this uses '''ssmping'''
 
Install this on all nodes .
 
Install this on all nodes .
 
  aptitude install ssmping
 
  aptitude install ssmping
 
 
On Node A:
 
On Node A:
 
  ssmpingd
 
  ssmpingd

Revision as of 12:43, 29 January 2012

Notes about multicast

test if multicast is working on a network

  • 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