Redundant BGP for lower cost

Joel Jaeggli joelja at bogus.com
Fri Mar 5 18:14:35 UTC 2010


http://ws.afnog.org/afnog2009/sie/detail.html

monday afternoon and tuesdays workshop materials cover introduction to
dynamic routing and ospf. thursdays includes the ospf/ibgp intergration
materials.

On 03/05/2010 08:46 AM, Alex Thurlow wrote:
> I have to say that this looks like a nice solution to me, and I've
> definitely had many people point me to OSPF.  One problem is that I've
> never run OSPF before.  Some googling brings of a few results on
> implementation, but can someone recommend a good place to look or a book
> to get to really get it all figured out?
> 
> Thanks,
> Alex
> 
> 
> On 3/4/2010 11:23 AM, Jack Carrozzo wrote:
>> If you want to keep it cheap, roll out another Quagga edge - one to
>> each peer. Drop default into OSPF from both edges, iBGP over a GE
>> between them. If one toasts you'll only lose half your routes for
>> 1s-ish, or however long you set your OSPF keepalives.
>>
>> While you're at it, add extra fans and run the edge systems off solid
>> state disks or CF cards.
>>
>> Or, buy $real hardware.
>>
>> -Jack Carrozzo
>>
>> On Thu, Mar 4, 2010 at 12:17 PM, Alex Thurlow <alex at blastro.com
>> <mailto:alex at blastro.com>> wrote:
>>
>>     Let me preface this by saying that I'm not a full time network
>>     admin, but we're a small company and I'm the only one handling
>>     this.  Our budget is also not huge, but we're at the point where
>>     extended downtime would cost us enough money that we can spend
>>     some money to fix the problem.
>>
>>      Here's my situation:  I have two providers, each handing me
>>     gigabit ethernet.  I'm getting full BGP feeds and handling them
>>     with a Linux/Quagga router.  We max out at about 100kpps, as we're
>>     mostly pushing video which gives us a large packet size.  It works
>>     fine, and I've been happy with it so far.  But, we've gotten to
>>     the point where I want a backup router of some sort in case
>>     something happens to that one, what with the fans and disks that
>>     could fail.  I see a few options.
>>
>>     1. Just set up another Quagga box and use keepalived or some other
>>     HA solution.
>>     2. Buy a Cisco/Juniper/whatever and then have the Quagga box as
>>     backup.
>>     3. I have a 6500 behind the router that's just doing switching.
>>      Could I have something switch that to static route all traffic to
>>     one of my providers if something happened to the router?  The 6500
>>     has Sup1A with MSFC2 running IOS native.
>>
>>     On the Cisco side, I see that we could probably run a 7200VXR with
>>     NPE-G1 (about $6000 on ebay).  Moving to the Sup720, even used is
>>     probably out of our price range.
>>
>>     What do you guys think I should use here?
>>
>>     Thanks,
>>     Alex
>>
>>
>>
> 




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