Running 100 Routers on GNS3

Given you have the correct 'idle PC' value set properly in Dynamips/GNS3, running multiple routers isn't really a hard task to achieve.

Please see the attached video showing you how you can run 100+ routers on GNS3 AND not using much resources.

Regards,
Khaled

• Category

  Education

[duwage Madusanka]

can you run OSPF and EIGRP ...., with 100+ routers in 16G ram and core i5 ?

[GNS3Talk]

You would be comfortable running about 30 routers with OSPF/BGP using this setup.

[Vũ Văn Thiện]

verry good



[GNS3Talk]

You just need to install 'Konsole' in Ubuntu, then choose 'Konsole' to be your terminal application from GNS3 setting. There is nothing else you have to do.

[Carlos Otero]

in 6:57

[Carlos Otero]

how i can make console to all devices in one terminal like you do it... ?? master!!!

[GNS3Talk]

Not necessarily. Just choose a random number and see if the CPU utilisation drops. Bring 4 routers into GNS3, start them, wait for about 20 seconds, then choose the Idle PC value randomly until you choose the value which drops the utilisation into a reasonable level. I uploaded few videos which highlight how to do that.

[Bhaskar Sharma]

hmmm..

Thanks

lowest is better right?

thanks

bj

[GNS3Talk]

No not really. You need to rely entirely on an estimated-guess that Dynamips does in the background, similar to what's shown in the video!

[Bhaskar Sharma]

thanks mate for your reply...is there a way to calculate idle pc value???