nanog mailing list archives

Re: Mikrotik Cloud Core Router and BGP real life experiences?


From: Eduardo Schoedler <listas () esds com br>
Date: Fri, 27 Dec 2013 14:06:20 -0200

PPPoE Server is single thread too.


2013/12/27 Nick Olsen <nick () flhsi com>

Exactly what Faisal Said. The BGP process appears to be single threaded at
the moment. So taking on full BGP tables can be a bit slow compared to a
decent X86 box. But in terms of raw forwarding power they are pretty
monstrous.

We replaced a few Maxxwave 6 port Atom's with the CCR. ~400Mb/s and ~40K
pps aggregate across all ports. CPU load went from ~25% to ~0-2%. These are
in a configuration where they have little or no firewall/nat/queue rules.
And in most cases are running MPLS.

We've not had any issues with stability so far either (Knock on wood).

Nick Olsen
 Network Operations
(855) FLSPEED  x106

----------------------------------------
From: "Faisal Imtiaz" <faisal () snappytelecom net>
Sent: Friday, December 27, 2013 10:33 AM
To: "Geraint Jones" <geraint () koding com>
Cc: nanog () nanog org, "Martin Hotze" <m.hotze () hotze com>
Subject: Re: Mikrotik Cloud Core Router and BGP real life experiences?

FYI... Mikrotik Cloud Core routers are nice, however one has to keep
something in mind when deploying them...

Only One Core (of the CPU) is dedicated to each port / process.
So this is good so as  to contain what happens on a single port from taxing
the whole CPU..
But not so good when you need more cpu power than a single core for that
port.

Also, BGP process will only use one core.

While these units make for great 'customer facing' edge routers, with
plenty of power and the ability to keep issues contained... The X-86 based
(Core2Duo/i5/i7) Mikrotik are more suitable (Processing power wise) for
running multiple full BGP tables peering.

Regards & Good Luck.

Faisal Imtiaz
Snappy Internet & Telecom

----- Original Message -----
From: "Geraint Jones" <geraint () koding com>
To: "Martin Hotze" <m.hotze () hotze com>
Cc: nanog () nanog org
Sent: Friday, December 27, 2013 4:02:45 AM
Subject: Re: Mikrotik Cloud Core Router and BGP real life experiences?

I am going to be deploying 4 as edge routers in the next few weeks, each
will
have 1 or 2 full tables plus partial IX tables. So I should have some
empirical info soon.

They will be doing eBGP to upstreams and iBGP/OSPF internally. I went
with
the 16gb RAM models.

However these boxes are basically Linux running on top of tilera CPUs,
in
terms of throughput as long as everything stays on the fastpath they have
no
issues doing wire speed on all ports, however the moment you add a
firewall
rule or the like they drop to 1.5gbps.



On 27/12/2013, at 9:47 pm, Martin Hotze <m.hotze () hotze com> wrote:

Hi,

looking at the specs of Mikrotik Cloud Core Routers it seems to be to
good
to be true [1] having so much bang for the bucks. So virtually all
smaller
ISPs would drop their CISCO gear for Mikrotik Routerboards.

We are using a handful of Mikrotik boxes, but on a much lower network
level
(splitting networks; low end router behind ADSL modem, ...). We're
happy
with them.

So I am asking for real life experience and not lab values with
Mikrotik
Cloud Core Routers and BGP. How good can they handle full tables and a
bunch of peering sessions? How good does the box react when adding
filters
(during attacks)? Reloading the table? etc. etc.

I am looking for _real_ _life_ values compared to a CISCO NPE-G2.
Please
tell me/us from your first hand experience.

Thanks!

greetings, Martin

[1] If something sounds too good to be true, it probably is.










-- 
Eduardo Schoedler


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