Steps for mping iptrace capture 

 mping is debuuged by CAA / HACMP => QUEUE ( amha,165 )  
 
NOTE: 228.167.0.119 in below example is IPv4 MULTICAST ADDRESS: 228.167.0.119
      ( From padmin => $ lscluster -i  | grep MULTICAST )

Collect from padmin on both nodes
=========================
- $ lscluster -m 
- $ lscluster - i

From oem_setup_env
================
- lscluster -s
- Start iptrace, both nodes
   -  "# startsrc -s iptrace -a /tmp/iptrace_vios-node1.mcast.raw" 
   -  "# startsrc -s iptrace -a /tmp/iptrace_vios-node2.mcast.raw" 

 - Start "/tmp/mping -vrc 5" on vios-node1  <-- waits for other node
 - Start "/tmp/mping -vs" on vios-node2     <-- sends 5 packets and exits
 - Start "/tmp/mping -vrc 5  -a 228.167.0.119" on vios-node1
 - Start "/tmp/mping -vs -a 228.167.0.119" on vios-node2
 - Stop iptrace, both nodes
   - #stopsrc -s iptrace 


Can you repeat above but replace  228.167.0.119 with 224.0.0.1 
and change iptrace_vios-node1.mcast.raw and iptrace_vios-node2.mcast.raw
to  iptrace_vios-node1.224.raw and iptrace_vios-node2.224.raw