[mrtg] Re: Graphing Broadcast Packets

Greg.Volk at edwardjones.com Greg.Volk at edwardjones.com
Fri Feb 7 19:17:51 MET 2003

}I was wondering if 
}anyone knows
}of how to graph broadcast packets on a Cisco 6509?  All of the 

You'll want to poll the

NU is for NON-UNICAST, so you'll get broadcast and multicast

You can download the following template:
and use it with cfgmaker to generate MRTG configs for typical
snmp interface based variables, one of which is NU packets

}are GigE...I'm not too sure if the super speed would have any 
}impact on the
}counters (use 64 or 32 bit counters ???).  Thanks very much.

As a general rule when I build in/out octets configs for my
6500 switches, I always use 64 bit counters. It's not necessary
on 10/100 ports, but is an issue on gig-e ports that sustain
more than about 10% utilization. At five minute poll intervals, 
you'll run into accuracy problems with 32 bit counters past
a sustainted rate of 114mbits/sec. 

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