[rtg] 64 bit question about GigE links

John Von Essen john at quonix.net
Tue Jun 10 13:13:05 EDT 2008


Quick followup. I changed my Gigabit interface to 64 bit about an hour 
a go, restarted rtgpoll, and now I see the attached graph (png image). 
The bandwidth graph dropped down to around 24Mbps from 80Mbps or so. 
Its been reading 24Mbps for awhile now, but that is not valid, it 
should be in the 74Mbps area - when I do a "sh int GigabitEthernet 3/8" 
on my 6509, its reporting 74Mbps.

Any ideas as to what is causing this skewed graph following the change 
from 32 to 63 bits?



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On Jun 10, 2008, at 11:54 AM, John Von Essen wrote:

> I assume that if you have GigE links pushing far more then 100Mbps,
> then you have to set that interface to 64 bit in the targets file.
>
> Other then that 64 bit setting, is there anything else that needs to be
> changed from the default rtg configs?
>
> Reason I am asking is every once in awhile I surge up to 400Mbps or so.
> The last time it happened, bit was set to 32, so I did not capture the
> reports accurately. I want to make sure I am prepared next time it
> surges up, and there really isn't a way to test it until it actually
> happens.
>
> Thanks
> John
>
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