hardware recommandation for internet scale route-reflectors

[Nicolas Piatto]

Hello Alexandre,


That's very helpful numbers.

I'll check when I can get my hand on a test machine.


Nico

Le 09/11/2022 à 13:16, Alexandre Corso a écrit :
> Hello Nicolas,
>
> We are using BIRD as route reflector in addition to Juno’s VRR (need some feature like ORR)
>
> The version that we use is 2.0.7 hosted on hypervisor and the VM has:
> - RAM: 24G
> - CPU: 8vCPU (Xeon CPU)
>
> We have around 30 IPv4 sessions and 30 IPv6 sessions (per instance of Bird)
> The memory used is 2G
> The number of routes is +9M IPv6 and +1.6M IPv6
>   
> Feature used:
> - Multiple table
> - OSPF
> - AF v4/v6 unicast
> - BGP add-path
>
> Computation and convergence are quite ok.
>
>  From my experience, we never had issue on convergence since 2 years, what we are missing is add-path with the number of route and ORR.
>
> Best
>
> Alexandre Corso
>
>> On 9 Nov 2022, at 19:16, Nicolas Piatto via Bird-users <bird-users at trubka.network.cz> wrote:
>>
>> Hello Maria,
>>
>> Le 08/11/2022 à 16:50, Maria Matejka a écrit :
>>> Hello!
>>>
>>>> I wonder if this would fit for BIRD router box, with some room for future growth in the DFZ.
>>>>
>>>> - CPU: Xeon gold 3,2GHz 8cores/16threads
>>>>
>>>> - RAM: 32 or 64gb
>>>>
>>>> How would BIRD behave with such HW specs ? is it overkill ?
>>> The memory is probably overkill for RR in single-table setup, you'll fit in 4G with a large margin.
>>>
>>> CPU is OK. With no or minimal filters, also the convergence time isn't going to be more than several minutes on this scale.
>>>
>>> With the multithreaded version (now 3.0-alpha0), you're gonna get convergence times in tens of seconds, probably.
>>>
>>> Maria
>>
>> Thanks for the feedback ! that's helpful.
>>
>> I'll try to get one machine to make my test on then.
>>
>>
>> I assume also that 3.0-alpha is not suitable for production yet :) but I'll try both anyway.
>>
>>
>> Thanks and best regards!
>>
>> Nicolas
>>
>> <OpenPGP_0x0F5B8D9CB7EE61F0.asc>