[mrtg] MRTG and Gigabit and 10GB

[Lyle Giese]

Daniel
You are correct but wrong. The OP asked the wrong question, but you gave
him the right answer concerning the speed<GRIN>.

He meant to ask if 1Gb is reported as 125MB/sec.

Switch ports and NIC's are advertised as bits/sec, not Bytes/sec. In
abreviations, b means bits and B means Bytes. And if you do the math indeed:

1Gb/sec equals 125MB/sec

Lyle

Daniel J McDonald wrote:
> On Thu, 2007-11-08 at 09:39 +0000, John Cushnie wrote:
>   
>> Hi,
>> I have a similar configuration with 1GB and 10GB port cards on a Unix
>> server.
>> Do I just need to add 64 bit counters to get the correct metrics?
>>     
> Yes.
>
>   
>> Also where do the Max speeds reported for the interface come from?
>>     
>
> from ifSpeed, which has a maximum of about 4Gb/s.  For higher-speed
> interfaces, the value is supposed to be in ifHighSpeed
>
>   
>> 1GB is reporting 125.0 MB/sec
>>     
> Correct.
>   
>> 10GB is reporting 536.9MB/sec
>>     
>
> I can imagine it is reporting that.  I guess I had best go write a patch
> for that....
>
> But I don't have any 10G interfaces yet - they are on order, but I'm not
> expecting to be able to install them before the middle of January.  If I
> write a patch, can I ask you to test it?
>
>
>   

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