Calculating multicast traffic (overhead)

From: Sundaram Ramasamy (sun@percipia.com)
Date: Tue Nov 16 2004 - 16:48:22 EST


Hi all,

 We are running weblogic cluster sever on solaris 8. My manager wants to
know how much multicast traffic generating on these servers.

Is there a command to display multicast bandwidth consumption hourly?

I did find any use fulll information from this netstat command.

 $ netstat -M -ns

DVMRP multicast routing:
          0 hits - kernel forwarding cache hits
          0 misses - kernel forwarding cache misses
          0 packets potentially forwarded
          0 packets actually sent out
          0 upcalls - upcalls made to mrouted
          0 packets not sent out due to lack of resources
          0 datagrams with malformed tunnel options
          0 datagrams with no room for tunnel options
          0 datagrams arrived on wrong interface
          0 datagrams dropped due to upcall Q overflow
          0 datagrams cleaned up by the cache
          0 datagrams dropped selectively by ratelimiter
          0 datagrams dropped - bucket Q overflow
          0 datagrams dropped - larger than bkt size

PIM multicast routing:
          0 datagrams dropped - bad version number
          0 datagrams dropped - bad checksum
          0 datagrams dropped - bad register packets
          0 datagrams potentially forwarded - register packets
          0 datagrams dropped - register send drops
          0 datagrams dropped - packet malformed
          0 datagrams dropped - no memory to forward

Thanks
-Sundaram
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