Controllerless Networks

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Frequent Contributor II
Posts: 184
Registered: ‎04-17-2013

To decrease Virtual controller failover sysc time

[ Edited ]

Hi,

I have IAP 205 VC with 20 IAP with latest AOS.

While Master IAP goes down and new IAP become master, i observed that wireless user connection drop and 5-6 ping drop. Once master elected wireless client asking for credential (Guest self registration)

 

How can we decrease master failover sync time/ping drop or how to avoid existing wirless user connection drop?

 

Thanks..

Guru Elite
Posts: 21,259
Registered: ‎03-29-2007

Re: To decrease Virtual controller failover sysc time

The connection for ALL users, or only the users that are connected to the VC drops?



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor II
Posts: 184
Registered: ‎04-17-2013

Re: To decrease Virtual controller failover sysc time

Hi Joseph,

I observed that for all users and i was pinging VC IP from my desktop system.

 

Thanks..

Guru Elite
Posts: 21,259
Registered: ‎03-29-2007

Re: To decrease Virtual controller failover sysc time

Is your WLAN using a  VC-Assigned VLAN?  In that case, all of the guest traffic is tunneled to the VC, so there has to be a VC election to decide who will handle and nat that traffic.  The minimum failover time should be 10 seconds, really.  If you are achieving 5 seconds, that is good.

 

If you were using 802.1x and you had a network-assigned VLAN, the AP a user is assigned to would just keep passing traffic, even during the VC election, because the data traffic would be truly distributed.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor II
Posts: 184
Registered: ‎04-17-2013

Re: To decrease Virtual controller failover sysc time

Hi,

 

I am not using VC assigned vlan for WLAN.

I hv 2 SSID Employee(vlan 10) and Guest(vlan 20). My network L3 switch leasing IP address for WLAN.

IAP is getting IP address from vlan 10.

 

Do i need to configure saperate management vlan for IAP?

 

Thanks...

Guru Elite
Posts: 21,259
Registered: ‎03-29-2007

Re: To decrease Virtual controller failover sysc time

A best practice is to have a separate management VLAN for your IAP, yes.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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