Hi, Emerson,

For example, this is an actual Bird 1.6.7:

82968 of 82968 routes for 41553 networks

bird     22191  1.6  2.6 123740 107788

And this is the same In a different environment:

544703 of 544703 routes for 503219 networks

bird     22191  1.7  5.5 236172 220244

It is not a memory you should be concerned about. The main issue of bird with huge BGP tables is CPU – bird uses only one core.

--

Best regards,

Valery Lutoshkin

From: Bird-users [mailto:bird-users-bounces@network.cz] On Behalf Of Emerson Barea
Sent: Monday, August 12, 2019 8:57 PM
To: Maria Matejka
Cc: bird-users@network.cz
Subject: Re: BGP table size

Sorry, I think that I didn't explaim well in my first message.

I want to know if exist any information that tell me how much RAM memory 100k BGP prefix uses in Bird, for example.

I know Cisco uses between 28MB and 71MB of memory by 100k prefix [1]. So, I want to know if Bird has some information like this.

Thank you

Emerson

[1] hhttps://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/12512-41.html

Em seg, 12 de ago de 2019 às 09:33, Maria Matejka <jan.matejka@nic.cz> escreveu:

Hello!
BIRD has in concept no limit on number of routes and number of prefices.
It should scale quite well. If not, please let us know.
Maria

On 8/12/19 2:15 PM, Emerson Barea wrote:
> Hi. Anyone knows if Bird documentation has any information about BGP
> table size vs. number of routes?
> Thanks.
> Emerson