I have accesss to four 3550's with EMI IOS. I have GNS3 up and running fine on my windows 7 box. So I've been looking around a bit to see how to incorporate these switches into my studies using GNS3.
I have seen only a handful of discussion on this matter, and most talk to adding a multiport NIC to your PC. These cards, seem difficult to get unless you want to spend several hundreds+ dollars. I have seen some listings on ebay, but they come with a lot of warnings from folks here as to be sure they are xyz and not abc or they won't work.
This brings me to my question. I saw a post a while back in the discussions, just not sure which group the discussion belonged to any more, but Scott Morris mentioned using USB - ethernet connections with no issues.
I did some looking around and the USB 2.0 to 10/100mbps are ranging anywhere from 20-50 bucks, for the most part.
Has anyone...or better yet, is anyone, right now, using the USB 2.0 to 10/100 solution? Did you have problems? Is this an avenue worth using for the CCNP track? Did you try this route and found it to be...not so good and had to go the multiport NIC route?
As always, all your feed back is worth it's weight in gold.
it is not necessary to shell out hundreds. Use a trunking capable card like the Intel CT desktop card (below 40$)http://www.newegg.com/Product/Product.aspx?Item=N82E16833106036 which is a single port Ethernet but capable of up to 64 VLANs. Connect this to one of your trunk-orts of your switch and you are good to go. If you need multiple trunks, get one of the trunking capable nic cards, but then you need to trick around with the drivers as outlined here: https://learningnetwork.cisco.com/message/164475#164475
This also shows how to connect GNS3 trunks to the individual VLANs fron a trunking ethernet card.
I use USB-Ethernet adapters with my laptop, but only because I cannot put a trunking capable card in. I use 2 of the SIIG USB2.0 to FastEthernet without any problem.
how many PCI slots does your PC have ?
does your PC NIC support VLANs ? look into device manager; properties of NIC;
4 siwtches, you need 3 more NICs; for CCNP I tihnk 2 NICs would be OK (you already have one in PC)
Hi Patrick and Martin,
I should have added more info in my first posting.
I am looking to have the four switches connected to each other, using two connection to each switch, so I can have 802.1Q and one ISL trunk. I also want to have at least one PC....virtual PC, connected to each switch if that is possible in GNS3.
I really don't know at this point just how well you can set up this type of route/switching lab in GNS3.
I'll have to look at my NIC card specs when I get hme.
Is what I have mentioned above, do-able using the solutions you guys have given? Sorry for so many questions, I want to be sure I get the correct hardware the first time around.
I've found the multi-port NIC is a great solution for me, however I am running Linux(Ubuntu 11.04 64bit to be exact). Driver support under Linux has been flawless with no tweaking required(for the drivers, that is). I trunk across them without any issues. I am running D-Link 570TXs and Adaptec ANA-64044s. I think I paid maybe $150 for all four including shipping. I needed 12 connections, and 3 quad-NICs provided that perfectly.
If you're using Windows as you mentioned, you may very well indeed find yourself playing driver wars with it.
With the intel-card there is luckily no driver hazzle involved and it is low priced. This will spare all the multi-port cards and the money you need to shell out. Here is an example which I use as demo in class with EIGRP and OSPF:
The 3 clouds and the 3 PCs (which actually are 3 more clouds but I changed the icon) are connected to a separate VLAN each. These VLANs are using only one physical port connected to a switch. This switch has accessports to phones and other PCs/servers in virtual machines on a second physical box. A max of 64 VLANs are possible to connect.
ha ha ha, I actually overlooked ISL as trunking method in the post.... maybe I already extinguished this method from my brain... but you are right: 1900s did do only ISL and at that time 4000 series only did dot1q. One needed to have something else in between to connect these. But these were ancient times when Cisco called a 1900 an Access-Switch..... btw, all switches which need a "switchport trunk encapsulation dot1q" support both methods.
i do not mean to hijack this thread, but my question is related to this post and do not want to create another thread.
I have 3 3550 emi switches and 3 nic cards that support vlan trunking and tagging. I want to add 3 virtual pcs to the network. Please correct me if i am wrong. if i want to add a virtual pc ( use router as pc in gns 3), i have to map it in GNS3. So , every virtual device would need a nic. Right? Is there any way that i do not know? I do not mind buying another 6 ports nic, but i do not want to buy it if i really do not need it.
Thank you .
why do you want more physical ports when your 3 NICs support trunking? Beside you want different trunks to different physical switches.
I want to add more pc to topology. For example, i have 3 switches : s1, s2 and s3. i have trunk configured among them. i also have 3 vlans: vlan 10, 20 and 30. I want to add pc number 10,20 and 30 to respective vlan and have communication among them. How would i accomplish that with 3 physical nics? I really do not know how. Please kindly let me know.
before we assume a lot of things which is like tea-leaf-reading, could you supply us with a graphic what you would like to connect where and in which way. Let us know which devices are physical and which you'd like to realize with VMs or GNS network components. This would give us an idea how to help you.