If possible, it would be nice to survive a ddos ;-)

That the 256 MB isn't enough is clear. Because of this we asked, if it will be enough just to upgrade to 768 MB to hold a full routing table or not. Or to ask the question direct, what is the minimum memory requirements to hold a full routing table from one or two upstreams and have some privat peerings at SwissIX?

It's more a question of, if the 2811 can do this job and we can add perhaps a second 2811 for a second upstream, or if we should start over with a better solution.

Since the router isn't too old, we like to use it for this. If your recommendation is to go with a 3845, then we have to forget about idea to go with the 2811.

We just like to know, what will be the minimum requirements and the disadvantage of this minimum solution, and what will be the best cost/performance solutions for that scenario.

Regards

Patrick

****************************************************************************** X-NetConsulting GmbH Internet http://www.x-netconsulting.ch Grosspeterstrasse 21 E-Mail p.studer@x-netconsulting.ch CH-4052 Basel Telefon +41 61 315 85 55 Schweiz Fax +41 61 315 85 59 ******************************************************************************

-----Ursprüngliche Nachricht----- Von: Bernd SPIESS [mailto:bernd.spiess@i3b.at] Gesendet: Donnerstag, 17. September 2009 09:54 An: studer.patrick@gmx.ch Betreff: RE: [swinog] Full BGP Routing Router Requirements

it depends

do you want to survive a ddos or not?

with 100 mbit link speed a 2811 will die for 100% when you receive a dos/ddos in your direction

256 mb ram will also be to less for multihoming if you want to have one or two full routing table. It will be ok for two default routes and some peering routes.

what is your budget ?

typically a standard setup for a stable multihoming scenario with two core routers build with cisco can go from 10k until 20k euro below 10k€ you don’t get a solution with solves all cases.

bernd

-----Original Message----- From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of studer.patrick@gmx.ch Sent: Thursday, September 17, 2009 9:49 AM To: 'swinog@lists.swinog.ch' Subject: [swinog] Full BGP Routing Router Requirements

Hi

We are planning to go multihomed with our infrastructure.

The first step will be, to have 10 Mbit/s fixed or 100 Mbit/s burstable service with an additional link to SwissIX where we want to do some privat peerings.

In a second step, we will add a second or a third upstream with about the same speeds as the first connection. All connection should be done by normal Ethernet connection.

Currently we have a Cisco 2811 with 256 MB Ram. Would it be enough for the first step to upgrade the ram to 768 MB or will it be necessary to buy a better/bigger router (2851, 3825 or 720x system).

We tried to find some recommendations on the internet, but we wasn't successful.

What is your recommendation for this scenario?

Regards

Patrick Studer

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