Controllerless Networks

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Contributor I

Virtual Controller Cluster Client Traffic Pattern

Hi,

 

I want to know how is the traffic flow for Instant Cluster setup?

Let say I have 3 IAP:

IAP_1 - Virtual Controller IP = 192.168.0.10, AP IP = 192.168.0.10

IAP_2 - Virtual Controller IP = 192.168.0.10, AP IP = 192.168.0.11

IAP_3 - Virtual Controller IP = 192.168.0.10, AP IP = 192.168.0.12

 

Client associate at IAP_2 & IAP_3 will the traffic goes back to IAP_1 first before goes to internet cloud or it will direct goes out to internet cloud ?

 

Regards

Michael

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Moderator

Re: Virtual Controller Cluster Client Traffic Pattern

It depends. Are you using the Instant cluster to NAT or are users being dumped directly onto a VLAN?

 

Guest users being NAT'ed:  User traffic -> AP -> VC

Traffic destined for corporate network via VPN (RAPNG):   Traffic -> AP -> VC -> IPsec tunnel

Regular local VLAN configuration:   Traffic -> AP -> local network (switched)

 

http://community.arubanetworks.com/t5/Controller-less-WLANs/How-to-understand-the-Aruba-Instant-Architecture/ta-p/182882



If this response is more than 1 year old, it may no longer be accurate. Please consult official Aruba documentation, TAC or your Aruba SE.

| Aruba Alumni | @timcappalli | timcappalli.me |

Highlighted
Contributor I

Re: Virtual Controller Cluster Client Traffic Pattern

My architecture is this:

 

VLAN:

Management, vlan10

Staff, vlan 20

Student vlan 30

Guest vlan 40

 

                                                         Trunk                                        untagged 10,

                                                                                                           tagged 20,30,40               

Server-------------Core Switch----------------Access Switch-------------------------------Aruba IAP

(DHCP)             (Layer 3 VLAN)                   (Layer 2 VLAN)                                      

 

 

So, I guess it a Regular local VLAN configuration:   Traffic -> AP -> local network (switched). Am I right?

 

Regards

Michael

Highlighted

Re: Virtual Controller Cluster Client Traffic Pattern

According to your scnario your data traffic  go through Virtual controller. actually APs are layer 2 deivce if they have proper IP to connect Internet gateway they can reach internet without go though controller.

you use controller manged dhcp, so you may have to use controller to NAT client IP.

Dinusha Chandrasinghe
Network Engineer -Enterprise System Solution @PlexusGlobal
ACMP | ACSA | ACCA | MCSA
*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*