Re: Does Cricket support 10G Interfaces.

Hi Ed,

I am using --snmpv2c for genRtrConfig.

I am trying rrdtool tune and see if this fix it.

Thanks.



Regards,
 
Naveen Baldeo
 
Phone:    +612 9775 8298
Fax:         +612 9775 9933
Mobile:    +614 1102 9826
<mailto:[email protected]>
 

-----Original Message-----
From: Ed Ravin [mailto:[email protected]] 
Sent: Thursday, 30 November 2006 2:12 AM
To: Naveen Baldeo
Cc: [email protected]
Subject: Re: [cricket-users] Does Cricket support 10G Interfaces.

On Wed, Nov 29, 2006 at 03:43:49PM +1100, Naveen Baldeo wrote:

> Does cricket support 10G Interfaces?

Maybe, if you enable SNMPv2c or SNMPv3 for data collection.  Definitely
not if you're using the default SNMPV1.

> We have installed some new 10 Gigabit Ethernet Cards on Cisco 7600 and
> GSR 12000 Routers. Cricket is polling and collection the data. The
> traffic is at 3G. I am using genRtrConfig to create the config file. 

Are you using the "--snmpv2c" option to genRtrConfig?

> My problems are:
> 1.                   genRtrConfig set the value for rrd-max to 4.2G
not
> 10G as it should.
> 
> rrd-max             = 4294967295

That value is (2 ^ 32) - 1.  You're clearly hitting a 32 bit counter
limit.
I see Francois just posted an explanation of the problem with
genRtrConfig
(use of the int() function, and perhaps other assumptions that ifSpeed
or
other values in the MIB would not exceed 32 bits).

> 2.                   If I change rrd-max = 10000000000. cricket graph
> still shows as "4295.0 MBits/s ethernetCsmacd"

Even if you change rrd-max in the config file and recompile, it won't
affect the RRD file if it's already been created.  You'll need to delete
the RRD file and let Cricket re-create it.  Or see "man rrdtune" for
how to adjust the existing RRD file manually.

If that turns out to be the only problem with genRtrConfig, you might be
able to get around it by post-processing genRtrConfig's output with a
script.


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