Ask Your Question
2

using seperate node for neutron is a overhead in terms of communication or throughput ?

asked 2015-10-07 06:57:46 -0500

sahil gravatar image

updated 2015-10-07 07:10:40 -0500

Hi ,

Could anyone please guide me in which case should i use a separate neutron node ,since i am doing a POC and i have to decide between Neutron and Legacy Networking ,and how a separate Node is helpful when it adds to overheads of communication between the nodes .

edit retag flag offensive close merge delete

1 answer

Sort by ยป oldest newest most voted
1

answered 2015-10-07 15:30:17 -0500

dbaxps gravatar image

updated 2015-10-08 00:19:56 -0500

To be honest I almost forgot all what I knew about nova-networking.
This link http://redhatstackblog.redhat.com/201...
is devoted to Juno. However, VRRP && DVR work for Kilo and Liberty as well.
Since Juno release you are not forced to have single point of failure for L3 routing as Network Node.
Due to DVR North-South traffic may be distributed across Compute Nodes.See
https://kimizhang.wordpress.com/2014/...

DVR distributes East-West traffic via virtual routers running on compute nodes. Also virtual routers on compute nodes handle North-South floating IP traffic locally for VM running on the same node. However if floating IP is not in use, VM originated external SNAT traffic is still handled centrally by virtual router in controller/network node.
HA L3 Agent provides virtual router HA by VRRP. A virtual gateway IP is always available from one of controller/network node.
edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower

Stats

Asked: 2015-10-07 06:57:46 -0500

Seen: 179 times

Last updated: Oct 08 '15