Is is possible to simulate a Cisco 3750 switch of do I need to work with the default ethernet switch provided by GNS3? (I have the IOS). Please note that the IOSv appliance is based on IOS 15 and there are IOU (IOS on UNIX) images with IOS 15.

I think you should be fine router-wise. For the switches, the CCNP 300-115 was built around 3750 Catalyst switches running IOS 15. That said, you should be still be able to lab out the bulk of the topics in the exam blueprint aside from a couple of things like stackwise and private vlans.

Might be more to this list but I can't think of any others atm. If you want real gear, ideally go for 2 x 3750 and 1 x 3560e. If real gear isn't a must, you can do a lot of cool stuff with GNS3 nowadays and lower the power bill along with keeping things tidy around your house (no need for a whole rack of routers / switches anymore). If you want real equipment, here is some good information to read here is the TSHOOT exam topology: As you can see the topology includes 4 switches and 4 routers (5 if you include a frame relay switch). You will need 2x layer 3 switches that run version 15 of ios (and preferably the ipservices feature set) and 2x other switches (preferably layer 3 also) You will need 4x routers that also run version 15 of the ios (and at least the advipservices feature set) 1x router will need to have 4 serial ports (an 1841 can if the serial wics have dual ports) And you will need 2 serial ports in the other routers. And, you will need the apropriate cables to connect the serial ports together. For switches you have the 3560, 3750V2/3560V2, 3560G/3750G (from least to most expensive) for routers, I'd think 2x 1841 and 2x 2811 will be fine.

All that equipment is going to be several hundred dollars. But, failing a $250 exam because you didn't lab a few things bites too.

And, you can always sell the equipment after you have passed the exams. I really appreciate the replys gents! I will consider GNS3, but it seems like I always hit some 'limitation' of gns.

How do you run a l3 switch on GNS? I tried a router image with a switch module, but how to assign a port to a specific vlan when doing so? You have 2 options: - if you have access to Cisco VIRL, you could technically download their Layer 2 images (vIOS-L2) and import into GNS3 and it works fine albeit won't have all the features - go to the darkside (where they have cookies) and read up on IOS on Unix (aka IOU) which comes in 2 flavors: IOU-L2(basically a multilayer switch which can run a ton of features) and IOU-L3 (a router). Recent IOU images run 15.x code and they run very well on something called the GNS3 Virtual Machine.

Word of warning, IOU is mostly a Cisco-only internal thing so you'll have to find these images yourself (if you find them that is).

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Cisco IOS images for Dynamips GNS3 offers multiple ways to emulate IOS. For older images, we use and maintain Dynamips; an emulator dedicated to emulate some Cisco hardware. Dynamips can run unmodified IOS images.

In the new GNS3 1.4, there is a way to run a second category of switches and routers. These are classified as Routing and Switching virtual machines (or R+Svms) for short. What are the differences? Here are the major differences: • IOS images are usually run in Dynamips however R+Svms are housed in a virtual machine. • IOS images are lower in cpu and memory so you can fit more of them in one topology.

• R+Svms are all vendor Routing and Switching images that are larger in size but can be imported into GNS3 for real world network emulation. Due to these platforms hitting End of Sale, End of Life, and End of Support status, the images are no longer available for download from Cisco’s support sections. Currently, the c7200 images are the only ones still available for download for those with a support contract. Only the c7200 series get newer IOS 15 images.