Create a Network Toplogy via Dashboard

asked 2014-09-13 02:16:07 -0600

fhussain gravatar image

updated 2014-09-13 02:17:14 -0600


I want to create a virtual network with this topology in OpenStack. image description

This is how I have implemented this toplogy in OpenStack.

image description

However, I cannot ping the VMs on a different network e.g. ping between VM1 and VM3 is not successful.

Where am I going wrong?


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Moreover, I want to know what is the equivalent of a Switch in OpenStack? i.e. while mapping the above Packet Tracer Topolgy in OpenStack , what should I be using at the place of switches?

fhussain gravatar imagefhussain ( 2014-09-13 07:59:11 -0600 )edit

ovs is open switch

SGPJ gravatar imageSGPJ ( 2014-09-13 08:14:01 -0600 )edit

Coming back to the original question, what could be the reason for VMs on different subnets not pinging eachother successfully?

fhussain gravatar imagefhussain ( 2014-09-14 23:59:25 -0600 )edit

Security groups not properly open, perhaps?

jpichon gravatar imagejpichon ( 2014-09-17 02:48:38 -0600 )edit

@larsks: Could you please have a look it at and help me out?

fhussain gravatar imagefhussain ( 2014-10-02 06:52:34 -0600 )edit

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answered 2015-01-16 16:07:33 -0600

sripriya gravatar image

updated 2015-01-16 16:48:47 -0600

Router 1 and Router 2 should be on the management network for VMs within private networks to talk to each other. Create a management network and add Router 1 and Router 2 on the management network, Create two private networks and add VMs 1 and 2 to private network 1, VMs 3 and 4 to private network 2. Packets can then flow through the path VM1->Router 1->management network->Router 2->VM3. Router 1 and Router 2 will then behave as switches for the VMs connected to them and as routers on the management network. Hope this helps.

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Asked: 2014-09-13 02:16:07 -0600

Seen: 777 times

Last updated: Jan 16 '15