Thu 24 Jul 2008
In this tutorial, you will learn how to build a Cisco switching lab … even though GNS3 cannot emulate a Cisco switch. I will show you how to use an NM-16ESW network module in a 3640 router to emulate a switching environment.
This tutorial is actually part one in a two part series. Part 2 will show you how to configure a “router on a stick”. Click here to see Part 2. A router on a stick is basically when a router is configured to route between two vlans with a single physical connection to the switch.
If you are interested in knowing more about the NM-16ESW module, please visit the following link. Cisco EtherSwitch Modules for the 2600/3600/3700 Series Routers
Special thanks to commenter (invalidCCIE) for digging this information up for us.

(12 votes, average: 4.58 out of 5)







July 24th, 2008 at 10:07 pm
nice, anyway, the 3725 can emulate the NM-16ESW too right?
July 24th, 2008 at 10:11 pm
Krisna,
I believe it can. I have used a 3745.
Josh
July 25th, 2008 at 5:56 am
[...] Link Leave a Reply [...]
July 25th, 2008 at 9:40 am
[...] BlindHog - How to build a switching lab [...]
July 25th, 2008 at 12:14 pm
i use 3725 with nm-16esw with 12.4 ios, because it allows configuring vlan in global config, and is some more stable.
but it still doesn’t allows rstp, mst, dtp, normal port security, and lot, lot, lot of other features
July 27th, 2008 at 11:28 am
sorry,
can you tell me where i can find part two of the tutorial?
thanks in advance
meik
July 27th, 2008 at 2:16 pm
@invalidCCIE,
Thank you for this great information. Do you know if there full list of switching features the NM-16ESW module does not support?
Thanks again!
Josh
July 27th, 2008 at 2:39 pm
meik,
Part 2 has not been released yet. It will be posted early this week.
Josh
July 29th, 2008 at 12:57 am
[...] is part two of my gns3 switching tutorial series. In part 1, you learned how to use a 16 port network module (NM-16ESW) to simulate many features of a Cisco [...]
July 29th, 2008 at 4:37 am
[...] is part two of my gns3 switching tutorial series. In part 1, you learned how to use a 16 port network module (NM-16ESW) to simulate many features of a Cisco [...]
July 31st, 2008 at 4:12 am
@Josh
information about ESW switching module series can be found here: http://www.cisco.com/en/US/prod/collateral/routers/ps259/product_data_sheet09186a00801aca3e.html
in the end of document, there is short specifications. module supports only listed features. so any features not in list are missing.
July 31st, 2008 at 11:46 am
[...] been there yourself to read it. This is part two of my gns3 switching tutorial series. In part 1, you learned how to use a 16 port network module (NM-16ESW) to simulate many features of a Cisco [...]
August 1st, 2008 at 10:40 am
how do i config voip in gns3
August 2nd, 2008 at 9:58 pm
invalidCCIE,
Thank you very much! I will add this to the initial post.
Josh
August 2nd, 2008 at 10:00 pm
kolawole,
I have been working on plans for a voice lab using VMWare and GNS3. Look for future tutorials regarding a voice lab using GNS3.
Josh
August 3rd, 2008 at 3:01 am
i use 3600 with nm-16esw with 12.4 ios, configuring vlan in global config, and is some more stable.
but it still doesn’t allows rstp, mst, dtp, normal port security, and lot, lot, lot of other features
August 6th, 2008 at 7:53 am
getinet,
You are correct. The NM-16ESW module is missing a lot of switching features but it is really all we have at this point.
Josh