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From Chandan Purushothama <Chandan.Purushoth...@citrix.com>
Subject RE: [PROPOSAL] "Internal Load Balancing between VPC tiers"
Date Wed, 01 May 2013 18:43:42 GMT
Hello Alena,

I have the following questions pertaining to the feature [Ref: https://cwiki.apache.org/confluence/display/CLOUDSTACK/Internal+Load+Balancing+between+VPC+tiers]

1. Do we support Multiple Application Tiers with InternalLb Service?
2. Do we support Network Tier Upgrade from a network offering with InternalLb Service to another
network offering that supports VPC VR as LB provider?

Thank you,
Chandan.

-----Original Message-----
From: Alena Prokharchyk [mailto:Alena.Prokharchyk@citrix.com] 
Sent: Tuesday, March 26, 2013 9:07 AM
To: dev@cloudstack.apache.org
Cc: Alex Huang; cloudstack-dev@incubator.apache.org; Chiradeep Vittal
Subject: Re: [PROPOSAL] "Internal Load Balancing between VPC tiers"

Marcus is right. The LB VM resides just on one tier (App in my FS example). To manage the
access from Web Tier to the App tier, Network ACLs will be used.

-Alena.

On 3/25/13 7:55 PM, "Marcus Sorensen" <shadowsor@gmail.com> wrote:

>I assume, and it seems this way from the spec, that the load balancer 
>VM just lives in the same network as the VMS you want to balance and 
>redirects traffic to them. It has a link local nic plus 1 nic.
>
>That's why I was thinking it would be easy to just create a static Nat 
>rule to the internal load balancer for public load balancing on any 
>network tier.
>On Mar 25, 2013 8:46 PM, "Vijay Venkatachalam" < 
>Vijay.Venkatachalam@citrix.com> wrote:
>
>> If the services are provided by a LBVM, it should have access to both  
>>networks, one NIC in the web tier (the guest network where the VIP is
>> present) and one NIC in the App Tier (the guest network where the 
>>server  vms are present), would that understanding be right? So when 
>>provisioning  the LB VM the user has to specify these 2 networks?
>>
>> On the similar lines, if an external LB Appliance is providing the 
>> service,  it has to be wired to both the VIP network  and the server 
>> vm network.
>>
>> Thanks,
>> Vijay V.
>>
>> > -----Original Message-----
>> > From: Alena Prokharchyk [mailto:Alena.Prokharchyk@citrix.com]
>> > Sent: Saturday, March 23, 2013 4:28 AM
>> > To: cloudstack-dev@incubator.apache.org
>> > Cc: Alex Huang; Chiradeep Vittal
>> > Subject: [PROPOSAL] "Internal Load Balancing between VPC tiers"
>> >
>> > I would like to propose a new feature - "Internal Load Balancing
>>between
>> > VPC tiers".  With the feature support, you can set up the Load
>>Balancer
>> inside
>> > the VPC without facing the public network side. It will allow to
>>balance
>> > internal traffic between tiers inside the VPC - for example, 
>> > traffic
>> coming
>> > from Web Tier to the App tier.
>> >
>> >
>> > Please review the firs draft of FS and provide your comments and
>> feedback.
>> > If you feel like some details are missing, let me know and I'll
>>update it
>> > promptly.
>> >
>> > https://cwiki.apache.org/confluence/display/CLOUDSTACK/Internal+Loa
>> > d+B
>> > alanc
>> > ing+between+VPC+tiers
>> >
>> >
>> > Alex/Chiradeep, would appreciate your reviewal as you were the
>>original
>> > contributors for the majority of cloudStack Networking code.
>> >
>> >
>> > Thank you,
>> > -Alena.
>>
>>
>



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