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Occasional Contributor II

L2 Mobility in Instant AP (IAP) clusters

Hello Team,

 

Can please someone explain how the L2 mobility works in IAP Clusters.

And if yes is there any setting we need to configure ?

Can we have same client vlan between Clusters VC  if they are L2 connected ?

 

Thank you.

MVP Guru

Re: L2 Mobility in Instant AP (IAP) clusters

Please see the instant VRD

https://community.arubanetworks.com/aruba/attachments/aruba/Aruba-VRDs/76/2/Aruba_Instant_VRD_2016.pdf

For L2 to work you need place all your IAPs in the same L2 VLAN
It is recommended to separate the Management VLAN and Wireless client Data VLAN, you will need to configure a trunk to achieve this and have the Cluster mgmt VLAN as the native/untagged VLAN

Thank you

Victor Fabian

Pardon typos sent from Mobile
Thank you

Victor Fabian
Lead Mobility Architect @WEI
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Occasional Contributor II

Re: L2 Mobility in Instant AP (IAP) clusters

Hello Victor,

 

I have read the Instand VRD but i have around 120 APs so i had create 2 Clusters with seperate and different managment vlan per cluster.

Can i have L2 mobility for the client vlan (same subnet for both clusters) as long as the client vlan pass to both VC clusters with common core switches and trunk ports even if the managment clustrer vlan is different to both clusters?

Or should i have also different client vlan per cluster ?

 

Thank you

New Contributor

Re: L2 Mobility in Instant AP (IAP) clusters

Hi, I have the similiar Issue and would like to know if anyone have experience deploying multiple VC across same network (Different mgmt vlan for each cluster, but same SSID and VLAN ID for client).

 

In this case, how can users roam seamlessly across different VC? As what we are observing currently, connection will drop when user roam from one cluster to another. How can we fine tuned that? This should be L2 mobility right? 

Guru Elite

Re: L2 Mobility in Instant AP (IAP) clusters

That all depends if you have a "network assigned" or Virtual Controller assigned VLAN in the SSID?


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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New Contributor

Re: L2 Mobility in Instant AP (IAP) clusters

Hi Joseph,

 

I have network assigned VLAN. Does it make any different?

 

Thanks

Guru Elite

Re: L2 Mobility in Instant AP (IAP) clusters

If it has Virtual Controller assigned, you would not be allowed to roam.

 

When your client attempts to roam, does it get the same ip address?


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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Guru Elite

Re: L2 Mobility in Instant AP (IAP) clusters

If it has Virtual Controller assigned, you would not be allowed to roam.

 

When your client attempts to roam, does it get the same ip address?


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.4 User Guide
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Occasional Contributor II

Re: L2 Mobility in Instant AP (IAP) clusters


@cjoseph wrote:

That all depends if you have a "network assigned" or Virtual Controller assigned VLAN in the SSID?


I also have central DHCP server.

New Contributor

Re: L2 Mobility in Instant AP (IAP) clusters

Hi Joseph,

 

Yes. Client will be getting the same IP address. Same SSID.

 

Situation is we have 3 connected Block, block A -> C. Each Block has around 80 - 100 APs. 3 x VC in 3 different IP subnet. Client IP remains the same if they roam from Block A to Block B or C. 

 

Is there any fine tuning can be done for this? Thanks 

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