Re: MX204 Virtual Chassis Setup

[Tom Beecher <beecher () beecher cc>]

> On MX480 16GB RE's running two full BGP feeds but hundreds of customer
> sessions, Add-Paths really eats into RAM.

It would, sure. Instead of storing a single prefix/next-hop with flags in
memory, you now have to store every prefix/next-hop that you are announcing
as well.

On Fri, Aug 25, 2023 at 5:39 PM Mark Tinka <mark@tinka.africa> wrote:

> On 8/25/23 19:16, Tom Beecher wrote:
>
> > In my experience and testing with them, you have a decent bit of
> > headroom past the published RIB/FIB limits before they'll fall over.
>
> They are holding up pretty well for us, mainly because we do a lot more
> BGP on MX480's than on MX204's. We use the MX204's mainly for peering
> and CDN gateways. Where we use them for edge customers, it's a handful
> of BGP sessions.
>
> On MX480 16GB RE's running two full BGP feeds but hundreds of customer
> sessions, Add-Paths really eats into RAM. We've had to upgrade some of
> the busier routers from 16GB to 64GB RE's, especially on later versions
> of code where ROV can also bite into memory on boxes carrying lots of
> BGP sessions.
>
> Mark.