Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Attention: The Community will be in read-only mode on 12/14/2017 from 12:00 am pacific to 11:30 am.

During this time you will only be able to see content. Other interactions such as posting, replying to questions, or marking content as helpful will be disabled for few hours.

We apologize for the inconvenience while we perform important updates to the Community.

New Member

Building a "WAN" in a lab environment

I have been asked to build a test lab environment that looks like our production environment. I thought I would use policy and shaping commands on several VLANs in my 6500 to emulate T-1's and DS3's. Any suggestions? I realize I won't be able to get circuit delay, but I should be able to get traffic to buffer, right?

Thanks,

-Steve

6 REPLIES

Re: Building a "WAN" in a lab environment

You could use an Adtran Atlas. They simulate and physical connects for frame/T1/DS3.etc.

Re: Building a "WAN" in a lab environment

There are a number of products such as LANForge ICE and Shunra that will emulate WAN performance. These will do both bandwidth adjustments as well as RTT delay and even jitter and packet loss, so you can emulate a "good" WAN and then a "bad" WAN.

New Member

Re: Building a "WAN" in a lab environment

Perhaps I should clarify.. I'm trying to do this with existing equipment in a very short timeframe. As far as I know, this is a "one shot deal" so no need to invest in serious simulation equipment.

I'm looking for guidance on the policy and shaping commands.

-thanks

New Member

Re: Building a "WAN" in a lab environment

if dynamic routing is involved, why not just use the bandwidth command on the interface? in the right scenario that would be just as effective.

New Member

Re: Building a "WAN" in a lab environment

That was actually my first thought, but the way I understand that bandwidth statement, it applies to costing and not actual throughput.

Re: Building a "WAN" in a lab environment

True, "bandwidth" won't do actual throughput. You should be able to use the interface "speed" command, at least on serial ports.

If you need to limit speed on ethernet, throw a couple old 2500 routers together and use their serial ports with "speed 64000" or something, and put that setup between the normally-ethernet-connected units. Now your "WAN" between the ethernet ports is 64k.

234
Views
3
Helpful
6
Replies
CreatePlease to create content