Absolutely .. hence my polite suggestion to them at the time :)
They have since been acquired and slowly being merged into a competitors network that runs a much better designed network globally. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Faisal Imtiaz Sent: Wednesday, September 9, 2015 9:09 AM To: af@afmug.com Subject: Re: [AFMUG] Some OSPF Questions... First of all... "just because a large provider is doing s" it does not make it correct or best practice. and don't assume that just because they are a 'large network' they are setup following best practices... Ideally, you want to keep your Area 0 manageable... it is a relative term... think of it this way if you have a POP or cluster which may have routing updates within them, but as far as the Core is concerned, all the routes can be summarized, it would be a good idea to setup them up on their own area... why cause a ripple in the whole pond, when there is change in one area which the rest of the network does not need to know about. Regards Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net <mailto:supp...@snappytelecom.net> _____ From: "Paul Stewart" <p...@paulstewart.org <mailto:p...@paulstewart.org> > To: af@afmug.com <mailto:af@afmug.com> Sent: Tuesday, September 8, 2015 9:21:57 PM Subject: Re: [AFMUG] Some OSPF Questions... Yeah, true enough … there was a very large cable provider in the USA that I did consulting work for several years ago – they were running backbone area in OSPF (single area 0) with over 650k routes! No, it was not ideal and convergence was “challenging” to say the least. It wasn’t why I was working with them but really stood out …. I politely suggested they might want to look at dividing up into regional areas or something along those lines either in OSPF or migrate to ISIS (which was better potential solution for their specific MPLS requirements at that time). From: Af [mailto:af-boun...@afmug.com] On Behalf Of Justin Wilson - MTIN Sent: Tuesday, September 8, 2015 8:55 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] Some OSPF Questions... Areas came to being when routers had 32 megs of ram small processors. It was mainly a mechanism to cut down on cpu/memory utilization. Areas have advantages in certain designs, but not like they used to. Justin Wilson j...@mtin.net <mailto:j...@mtin.net> --- http://www.mtin.net Owner/CEO xISP Solutions- Consulting – Data Centers - Bandwidth http://www.midwest-ix.com COO/Chairman Internet Exchange - Peering - Distributed Fabric On Sep 8, 2015, at 8:11 PM, Paul Stewart <p...@paulstewart.org <mailto:p...@paulstewart.org> > wrote: Yup … have seen some *really* large networks run everything in backbone area … In previous job, we had 6000+ routes in backbone area with no noticeable issues. Paul From: Af [ <mailto:af-boun...@afmug.com> mailto:af-boun...@afmug.com] On Behalf Of Mathew Howard Sent: Tuesday, September 8, 2015 3:28 PM To: af < <mailto:af@afmug.com> af@afmug.com> Subject: Re: [AFMUG] Some OSPF Questions... I have everything in area 0 too, and we've get well over 100 routers running OSPF and I really don't see any good reason to change it at this point. On Tue, Sep 8, 2015 at 2:08 PM, George Skorup < <mailto:geo...@cbcast.com> geo...@cbcast.com> wrote: I run the backbone/area 0 only. But I have less than 15 routers speaking OSPF. Convergence time is fine so I see no reason to go to multi-area any time soon. On 9/8/2015 12:39 PM, Christopher Gray wrote: Can an area have multiple ABR routers connecting to area 0 (Is there any way to add redundancy to an area)? How big is too big for an OSPF database (At what point should one really start using areas)? With Mikrotik hardware, if there is no current need for VPLS tunnels or MPLS-TE, is there any benefit to running MPLS vs just OSPF? [I'm running it on some my network, and I'm debating whether to take the time to implement it everywhere.] Thanks - Chris
