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From Vadim Kimlaychuk <va...@kickcloud.net>
Subject Re: CloudStack Network configuration
Date Fri, 04 Sep 2015 10:34:58 GMT
To ensure high quality of your service don't use ready-to-use templates. 
They are not very popular as well. Everyone deploys their own as I know.

Vadim.

On 2015-09-04 13:05, Cristian Ciobanu wrote:

> Thanks for the info. i started with the basic networking.
> 
> I have a question regarding templates, where can i find some ready 
> templates for CS (KVM)? for most used distro.
> 
> Regards,
> Cristian
> 
> On 9/4/2015 11:23:09 AM, Vadim Kimlaychuk <vadim@kickcloud.net> wrote:
> Hello Cristian,
> 
> I have investigated possibility to host CS infrastructure on OVH around
> year ago and here are my notices:
> 
> * Using vRack is possible with certain product ranges, and Enterprise
> line does not have it. You will stick to Infrastructure and Storage
> dedicated server lines and thus CPU/RAM resources will be really
> limited.
> * vRack technology allows to combine servers into one network using
> dedicated NIC and OVH management software to assign VLAN numbers to 
> your
> sub-nets. You have no control over this top-level switch, except
> web-interface. More about it here: https://www.ovh.ie/solutions/vrack/ 
> [6]
> [6 [6]]
> * You have no option to separate physically your storage traffic.
> 1Gbps interface for everything may not be enough.
> * You have no backup-up interfaces. If one NIC is down - entire cloud
> may be down.
> * Since you don't have network switch under your control, you can't
> really build advanced cloud network using ACS and OVH vRack. One option
> is to use one OVH server in vRack as virtual appliance and put, for
> instance, VyOS. But then you need to think about VLANs-inside-VLAN and
> everything over single 1Gbps interface. Complicated.
> * Since you don't have network switch, you have to route all your
> cloud traffic through single server. Our use OVH
> https://www.ovh.ie/solutions/ip-load-balancing/ [7] [7 [7]]
> * There is also IP switching limitation. You can't really route you
> public traffic between public interfaces. OVH does it for you. More
> about it here: https://www.ovh.ie/dedicated_servers/free-ips.xml [8] [8 
> [8]]. I
> think your problem is here. You may try you use L2TP.
> 
> Regards,
> 
> Vadim.
> 
>> On 2015-09-03 22:23, Cristian Ciobanu wrote:
>> Thanks for clarification, the best option for me will be the Basic
>> networking.
>> 
>> Can you help me with this ?
>> 
>> Regards,
>> Cristian
>> 
>> On 9/3/2015 10:18:12 PM, Erik Weber wrote:
>> Both types will allow you to have public traffic, but in different
>> ways.
>> 
>> - Basic is the typical flat network, aka Amazon EC2, where each VM get
>> its
>> own public ipaddress.
>> The downside is that the max size of your cloud is equal to your ip
>> pool
>> (minus a few to system vms).
>> 
>> - Advanced is isolated in one way or another, the typical is VLAN but
>> other
>> options exist, where tenant networks are behind source nat. This
>> drastically reduces the necessarity of public ips, but means you have
>> to
>> deal with port forwarding and such. If you plan on using VLAN, the 
>> size
>> of
>> your cloud is limited by the number of VLANS available and the number
>> of
>> public IPs (each tenant use a minimum of one).
>> 
>> --
>> Erik
>> 
>> On Thu, Sep 3, 2015 at 9:07 PM, Cristian Ciobanu
>> wrote:
>> 
>> Hello,
>> 
>> It's ok with Basic networking if this will allow me to have also
>> "public traffic".
>> 
>> Thanks.
>> Cristian
>> 
>> On 9/3/2015 10:02:36 PM, Erik Weber wrote:
>> Well, then there shouldn't be much OVH specific to think about.
>> 
>> Are you planning to use Advanced or Basic networking?
>> 
>> --
>> Erik
>> 
>> On Thu, Sep 3, 2015 at 8:52 PM, Cristian Ciobanu
>> wrote:
>> 
>> Hello,
>> 
>> No, this is not for vrack. ( MAC allocation is mandatory only on 
>> normal
>> dedicated servers )
>> 
>> Regards,
>> Cristian
>> www.istream.today [1] [1 [1]] [http://www.istream.today/ [2] [2 [2]]]
>> www.shape.host [3] [3 [3]] [http://www.shape.host/ [4] [4 [4]]]
>> +40.733.955.922
>> 
>> On 9/3/2015 9:51:16 PM, Erik Weber wrote:
>> Before you put much work into this, you should verify with OVH that
>> they'll allow other MAC-adresses on your switchport(s).
>> 
>> Some hosting providers limit switchports to a set of pre-defined
>> MAC-addresses, and that is going to be a pain in the ass to overcome.
>> 
>> --
>> Erik
>> 
>> On Thu, Sep 3, 2015 at 8:45 PM, Cristian Ciobanu
>> wrote:
>> 
>> Hello,
>> 
>> I have some issue with the network, i'm not sure how to configure the
>> public and private network to work on OVH in Vrack. because i have 
>> only
>> this documentation from OVH and the documentation is only for for
>> machine itself and for ESXI/Proxmox/xen :
>> http://help.ovh.com/VrackInfrastructureServer# [5] [5 [5]] (maybe 
>> somone can
>> translate to for cloudstack (Cent-OS/KVM)
>> 
>> The RIPE (Public IP's ) need to be bridged via eth1 also the private
> IP (
> 
> but i don't find the solution also i need to do the right config on
> the
> management server )
> 
> Can someone help me ?
> 
> Thanks!
> Cristian



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