what is a vip, what is the use of it?

asked 2014-07-16 16:04:04 -0600

anonymous user


hi all, GM, i am a newbie of openstack environment, i want integrate lbaas plugin in my openstack setup.but i got stuck while understanding the vip (what it is ? and what is the use of it?) can anybody please explain me in detail .

actually i wanted to maintain all pool member details(ip/vlan etc..) as database at lbass driver is it possible to maintain if so please suggest any procedure or documentation??

thanks for your time in advance

thanks, vs

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any documentation or reference implementation of LBaas are welcome....

vs gravatar imagevs ( 2014-07-16 16:05:15 -0600 )edit

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answered 2014-07-17 02:23:29 -0600

foexle gravatar image


a VIP is a 'virtual IP' for your pool. So it's the IP address for each connection which will handle by the lb for your configured pool.

So services or clients in the outside will connect to this ip address and the lb will distribute all requests to the pool members on the configured ports.


VIP= (www.example.com)
Members => (webserver1), (webserver2)
Method => Round Robin

Request http to www.example.com => VIP LBaaS => ROUND_ROBIN => (webserver1) => Response to client

I hope it helps.

Cheers Heiko

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Good answer!

SGPJ gravatar imageSGPJ ( 2014-07-17 06:42:18 -0600 )edit

thanks heiko for your reply that really helped me a ton.. :-)

but i have left with one more query i..e.. where the load balancing will take place i mean (at compute node or at network node ) sorry if my questions are too basic..

please correct me if my understanding is wrong..!!

thanks, vs

vs gravatar imagevs ( 2014-07-17 10:54:32 -0600 )edit

The lb's should be place on the same host as the l3 agent's normally because otherwise you have some tricky configuration steps and you don't have any benefits. So you should them place on the network nodes

foexle gravatar imagefoexle ( 2014-07-18 02:35:26 -0600 )edit

that helps thanks foexle

vs gravatar imagevs ( 2014-07-21 07:00:21 -0600 )edit

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Asked: 2014-07-16 16:04:04 -0600

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Last updated: Jul 17 '14