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Hardware requiremnt for dynamips

i want to study ccnp by my own, i had attended bootcamp for CCIE R/S but it was not at all useful as that was for only 30 days. what i came to know that through dynamips v can practice all labs.

1- Can i practice Internetwork-Experts Labs in dynamips

2 - Does dynamips supports frame-relay and mpls

3 - What is the hardware requirement for dynamips if i have to practice Internetwork-experts r/s labs.

4- Does dynamips support full switching

thx
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pawanopensource
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pawanopensource
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Don JohnstonInstructorCommented:
1) Yes. At least the routing parts.
2) Yes
3) I have found that 2GB RAM is the absolute minimum. Works much better with 4GB.
4) No. It's only for routers. There is a switch for topology purposes but it's not a real switch like the routers, it's a simulation.
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pawanopensourceAuthor Commented:
does dynamips supports simple switching like vlan,etherchannel
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pawanopensourceAuthor Commented:
plz tell me is core 2 duo processor good if i use 6-8 router and 4 switches.or shall i go for Quad Core
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Don JohnstonInstructorCommented:
>does dynamips supports simple switching like vlan,etherchannel

No. It's a ROUTER emulator. No switching.

>plz tell me is core 2 duo processor good if i use 6-8 router and 4  switches.or shall i go for Quad Core

I've run it on a Core Duo with 2GB of RAM. After 4 routers it's gets REAL slow. IMHO, memory is more important than CPU.  That said, a faster CPU wouldn't be bad either.

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cardsfan73Commented:
Well, yes and no on the switching part.  You can load up a router in Dynamips with an NM-16ESW switch module, and get Layer-2 switch functionality (VLANs, trunking, EtherChannel, etc.)  The commands you need to use are a BIT out-dated in some cases (based on the 2900XL IOS CLI), so you'll have to use "vlan database" to work with VLANs/VTP, etc. instead of global config.  But most of the L2 functionality is there.

I'll agree that 2GB is what you want probably for a minimum, but it can be tuned.  I would recommend downloading/printing off the tutorial doc off of www.dynagen.org, and read about tuning idle-PC values. This simple step drops CPU utilization from close to 100% (even with only one device loaded) down to almost nothing.  There are also options you can experiment with (shadowing the RAM used between instances of the same device type, etc.), that make a MONSTER difference in RAM consumption.  Having said all of this, I've honestly had a 13-14 node device up and running in Dynamips before on a system with 2GB RAM - MPLS/BGP/VRFs in a CE-PE-P environment.  It was slow, but it worked.

Hope this helps.
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pawanopensourceAuthor Commented:
thx a lot for detail information cardsfan73. can u plz tell me in dynamips will be i able to all type of frame relay.
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Don JohnstonInstructorCommented:
Yes. You will be able to execute any command available on the IOS version (and featureset) you're running.
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pawanopensourceAuthor Commented:
plz clear my frame relay question will be i able to configure framerelay in dynamips


 - Full Mesh Frame-relay configuration

-  Frame-relay point-to-point sub-interfaces

 - Full Mesh Frame-relay configuration using Point-to-Point Sub-interfaces

-Point-to-point, Multipoint and PPP

-Frame-relay end-to-end Keepalive - FREEK
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Don JohnstonInstructorCommented:
Yes. Yes. Yes. Yes. And yes.
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cardsfan73Commented:
Agreeing with donjohnston - yes, all FR commands are supported - whatever IOS you have, that's the feature set you get.  Dynamips provides a FR cloud device (emulates a FR switch - FRSW), which you can configure with whatever DLCI mappings you wish to use.  Take a look at the frame_relay1 sample lab you get when you install Dynamips, and reference that same tutorial doc on www.dynagen.org for additional detail.  It works great.
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