You should be fine with 6 gb RAM - I wouldn't recommend less than 4 for a full lab. My system has 8 and I have plenty of room to run some VMs to hook into my lab network occasionally.
You're probably ok with a core 2 duo but you'll want to really tweak your idlepc values. I've had a lot of problems with running 3725/3640 routers but with the resources of my system and a decent idlepc, I'm able to use all 7200 routers. I find that my cpu idles lower than it ever did on the lower resource routers - plus I can run 12.4T. Also the nic chipset implementation on the 3725/3640 routers is buggy - I never could get cdp to work properly until I switched to the 7200. Typically I have 11 routers running and 2 or 3 vms without sweating my system very hard. I use the internal frame switch but use physical 3550 and 3560 switches connected to a trunked gigabit nic card on my server. So far the only thing I really haven't been able to get working is l2 tunneling. Also, if you download the initial configs from any of the vendors, make sure that you nuke the 'scheduler resource allocate' line or you may find your routers crashing for no reason. Michael On Wed, Aug 19, 2009 at 10:06 AM, Juan Pablo Corrales <[email protected] > wrote: > Hi guys, > > Thanks a lot for your valuable input. I´ve heard that GNS3 with Linux runs > a lot better than in any Windows based OS. Actually a friend ran 6 routers > with just 1 Gb of RAM (Linux based OS) using all the feature GNS3/dynamips > has to reduce the memory/CPU consumption, so I´ll go for my CORE 2 DUO > 2.66Ghz with 6Gb of RAM and will make a partition for Ubuntu 9.0.4 to run > GNS3 there. > > Thanks a lot! > > Regards, > > Juan Corrales > > > From: Johan <[email protected]> > Subject: Re: [OSL | CCIE_RS] Minimum requirements GNS3 for CCIE Lab > To: Rick Mur <[email protected]> > Cc: CCIE_RS OnlineStudyList <[email protected]> > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="windows-1252" > > > I run GNS with ubuntu 32 bits, on a thinkpad T60, > model name : Intel(R) Core(TM) Duo CPU T2500 @ 2.00GHz > > The system has 3gb of ram. > I can run up to 14 routers in my setup. > > A 64 bits system will not give you some better performance, just will let > you address more memory. > > > > > > > On Wed, Aug 19, 2009 at 2:25 AM, Rick Mur <[email protected]> wrote: > > > It's known that Dynamips and therefore GNS doesn't run too good on > Windows. > > If you really want to run a large topology I would advice to use a mac, > or > > for even better performance 64-bit linux. > > > > > > -- > > Regards, > > > > Rick Mur > > CCIE2 #21946 (R&S / Service Provider) > > Juniper JNCIA-ER & JNCIA-EX > > MCSA:Messaging, MCSE > > Sr. Support Engineer ? IPexpert, Inc. > > URL: http://www.IPexpert.com <http://www.ipexpert.com/> > > > > > > On Wed, Aug 19, 2009 at 1:08 AM, Antonio Dee <[email protected] > >wrote: > > > >> Hi Adrian, > >> > >> hmmm, interesting!!!, i have to check my system when i get home today, > did > >> that "idle pc" , i think that "ghost" feature but not sure I've enabled > that > >> "enable sparse memory" > >> > >> Cheers! > >> Antonio > >> > >> ------------------------------ > >> CC: [email protected] > >> From: [email protected] > >> To: [email protected] > >> Subject: Re: [OSL | CCIE_RS] Minimum requirements GNS3 for CCIE Lab > >> Date: Tue, 18 Aug 2009 18:56:39 -0400 > >> > >> > >> Hey Guys,I have a MAC Pro that I am using but dont think that it matters > >> but if you tune the "idle PC" , check the "ghost" IOS feature and enable > >> sparse memory... It uses hardly anything! I can have 10 routers going > all at > >> the same time and its using very little memory and the CPU never goes > above > >> 3 %... Read the FAQs on the site and I am sure you will have the same > >> results! > >> > >> > >> HTHs > >> > >> > >> On Aug 18, 2009, at 6:23 PM, Antonio Dee wrote: > >> > >> Running up the lab with a dual-core CPU is doable, but i think you will > >> be crunching the CPU pretty badly as you will be virtualizing your GNS3 > on > >> your box with ubuntu. > >> > >> to share my experience labbing up IPExpert with GNS , > >> > >> My system is a Quad-Core AMD with 8GB of RAM running Win Vista x64, > didn't > >> virtualize the GNS as i'm saving the processing power for GNS. > >> > >> If you tune your system right, running the IPExpert labs will do it, but > I > >> noticed as I moving along the lab scenarios from layer 2 then moving up > to > >> layer 3 especially when putting in BPG, Filters, Mutlicast, i noticed > that > >> CPU on my system starts to climb even at a steady rate of 95 to 98%. > still > >> responsive but sometimes i think it's cozing some issue with neighbor > >> adjacencies. > >> > >> powering up the initial config of Vol 1 ACL/Filters lab just shoots > >> already my system to 90%+ CPU. > >> > >> For memory, it's chewing up steady roughly at around 5GB+ powering up > GNS > >> lab > >> > >> Cheers! > >> Antonio > >> > >> ------------------------------ > >> Date: Tue, 18 Aug 2009 10:57:38 -0600 > >> From: [email protected] > >> To: [email protected] > >> Subject: [OSL | CCIE_RS] Minimum requirements GNS3 for CCIE Lab > >> > >> Hi guys, > >> Based on your experience, what is the minimum processor and memory > >> requirements on a computer to run a complete CCIE Lab simulation without > any > >> problems? > >> > >> I?m thinking of buying a Core 2 Duo T9600 2.66Ghz with 6Gb of RAM but I > >> don?t know if that?s too much for what I really needs. I?ll use a VMware > >> software (Sun xVM VirtualBox) with Ubuntu 9.0.4 to run GNS3. > >> > >> Thanks in advance. > >> > >> Regards, > >> > >> Juan Corrales > >> > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
