[nsp] I need ideas on how to simulate a 200ms round-trip latencyand bandwidth limitation.

[adel mezibra]

Hi,

If you have a FreeBSD box with 2 FE ports u can use the firewall
and use dummynet and pipe to simulate any bandwidth limitation or latency
Just put the box the middle of your setup..

Example config : 

...
ipfw pipe 1config bw 256Kbit/s queue 10 delay 200ms
ipfw add pipe 1 ip from any to any 
...

More detail here :

http://info.iet.unipi.it/~luigi/ip_dummynet/

adel mezibra
    
-----Message d'origine-----
De : cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] De la part de Goldberg Alain (IT)
Envoyé : mercredi 2 juin 2004 09:59
À : cisco-nsp at puck.nether.net
Objet : [nsp] I need ideas on how to simulate a 200ms round-trip latencyand
bandwidth limitation.

 
Hi all,

I need to do some software tests between our main site and equipment
that will be collocated some 200ms from here.
I'd like to simulate the latency and some bandwidth limitation - let say
256Kbps.

The testing equipment I have on-hands is:
A couple of 250x routers, ( I tough to put them with serials back to
back but can't find the Female V35 cable and it will not create the
desired latency anyway). 
A 2600 router with a couple of ethernets and one serial port.
An old 4500 router (enterprises image) . 

A few 2924, 2950, 3550 switches

A few 6500's  (enterprises image) that are in production - so I can't
play much with them - let say I can make changes on a specific interface
- but not global changes.
 It has only ethernet ports.

A VPN-3006, and a couple of VPN's 3002.

A few AP-350's access points.

Please guys ... Be creative.

Thanks.

________________________________________________________________________
________________________________________________________________________
_________________
Alain Goldberg - Network manager - CCDA/CCNA AGG-RIPE - Tower
Semiconductors LTD.    Tel : 972-4-6506003 Fax : 972-4-6547788 Cell:
972-64-209662
________________________________________________________________________
________________________________________________________________________
_________________



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