[j-nsp] Netflow/Jflow

[Scott Granados]

+1, this is how I have set things up as well and yes, changing the table sizes will cause an FPC reboot.

> On Nov 3, 2016, at 9:04 PM, Olivier Benghozi <olivier.benghozi at wifirst.fr> wrote:
> 
> Hi Keith,
> 
> Adjusting the size of the flow hash table will reboot the FPC.
> In 14.2 and previous, you have everything (15) for IPv4 and only a few entries for IPv6 and VPLS (0). Each unit is 256K flows (except for 0).
> Starting from 15.1R, all flow tables have a default size of "0" (that is, a mini-minimum of space, 1024 flows), so in 15.1+, fixing the sizing of the flow-tables is more or less mandatory.
> 
> 
> This is the kind of generic config we use here to avoid an FPC reboot, would we need some unplanned stuff with inline-jflow (that you may adjust according to your needs, would you have plenty of IPv6 flows...). You have 15 units of 256K to spend.
> 
> 
> groups {
>    chassis-fpc-netflow {
>        chassis {
>            fpc <*> {
>                sampling-instance sample-1;
>                inline-services {
>                    flow-table-size {
>                        ipv4-flow-table-size 12;
>                        ipv6-flow-table-size 2;
>                        vpls-flow-table-size 1;
>                        ipv6-extended-attrib;
>                    }
>                }
>            }
>        }
>    }
> }
> chassis {                               
>    fpc 0 {
>        apply-groups chassis-fpc-netflow;
>    }
> }
> 
> 
> Olivier
> 
> 
>> On 3 nov. 2016 at 23:43, Keith <kwoody at citywest.ca> wrote :
>> 
>> One thing about inline that Juniper config docs say is about the flow-table size. I had someone
>> tell me enabling inline jflow will cause the fpc to reboot, but from what I read adjusting the size
>> of the flow hash table will cause that.
>> 
>> Any idea what is correct here? I would think that just enabling it would not cause an FPC to restart.
> 
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