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MVP
Posts: 2,948
Registered: ‎10-25-2011

Information about Instants AP

Hello

I would like to know what is the Hardware specs of RAP155, RAP109, IAP93

The CPU,SDRAM  Memory and Flash memory

 

Also i would like to know what information is processed on the virtual controller? i would like to know this becuase for example if i got a cluster of RAP 3 a big one, let say of 100 i would like to have something like a IAP 115 or IAP 135 as master of that cluster because of the hardware specs of these.

 

What recommendation can you give of this?

 

cheers

Carlos

----------------------------------------------------
Product Manager - Aruba Networks
Alternetworks Corp
Aruba Employee
Posts: 38
Registered: ‎03-20-2013

Re: Information about Instants AP

Hi Carlos,

 

We can get the information "show ap debug system-status" command.  Starting 4.0 release; we have preferred master configuration which would let you configure which AP acts as Master.

 

 

Thank you,

Regards,

Vijay Rajasimhan | Principal Network Engineer
Customer Advocacy | Aruba Networks

Did something you read in the Community solve a problem for you? If so, click "Accept as Solution" in the bottom right hand corner of the post.
MVP
Posts: 2,948
Registered: ‎10-25-2011

Re: Information about Instants AP

Hello!

Yeah i know i can pick  a master, but that wasnt my question

 

i would like to know what information is processed on the virtual controller? i would like to know this becuase for example if i got a cluster of RAP 3 a big one, let say of 100 i would like to have something like a IAP 115 or IAP 135 as master of that cluster because of the hardware specs of these.

 

Cheers

Carlos

----------------------------------------------------
Product Manager - Aruba Networks
Alternetworks Corp
Aruba Employee
Posts: 38
Registered: ‎03-20-2013

Re: Information about Instants AP

Hi Carlos,

 

Aruba Instant environment is a distributed environment however VC does handle a variety of activities across management, control and data plane. Below are some ::

 

VC Management Plane Functions

 

IAP cluster configuration sync
IAP cluster monitoring
IAP firmware image management
Communication with AirWave and Aruba Central

 

VC Control Plane Functions

 

Handling CoA
Dynamic Radius Proxy (DRP)
DHCP server

 

VC Data Plane Functions

 

Handling traffic for Magic VLAN (VC assigned)
Handling traffic when src-NAT is required

 

The best approach would be to use the AP with highest spec.

 

 

Thank you,

Regards,

Vijay Rajasimhan | Principal Network Engineer
Customer Advocacy | Aruba Networks

Did something you read in the Community solve a problem for you? If so, click "Accept as Solution" in the bottom right hand corner of the post.
Aruba Employee
Posts: 49
Registered: ‎12-28-2012

Re: Information about Instants AP

When you have 100 IAPs in a subnet all of them comming up in the same time, below is how master election will take place.

 

If there are two master on the same subnet

Below parameters are checked to resolve deadlock

•IAP with Non-default IP addr(Non-169.x.x.x) takes priority
•IAP with 3G dongle gets higher priority
•IAP platform checked, AP135 gets priority
•IAP with higher uptime
•IAP with a bigger MAC address
 
This election has a finely tested. If you take a packet capture in a subnet running IAP, can see that master sends out Beacon messages in the wired lan. Below is the protocol information.
 
master election.PNG
You can check whats happening with respect to election in master or any of the IAPs.
 

00:24:6c:cb:a5:3d# show election

State        : Master

master_beacon   : sent=96 rcvd=134

hierarchy_beacon: sent=94 rcvd=0

hierarchy_ack   : sent=0 rcvd=0

beacon_req      : sent=2 rcvd=0

Slave->Pot-Master : 1 time

Pot-master->Master: 1 time

Pot-master->Slave : 0 time

Thanks,
Abilash (ACCP, CWSP, CWAP, CWDP)
(Above answer is based on my knowledge and NOT an official statement from Aruba)
[Hit Kudos if my reply helps. ]
Aruba Employee
Posts: 49
Registered: ‎12-28-2012

Re: Information about Instants AP

I have seen clusters with more than 100 IAPs, which are working fine. If I'm not wrong we are coming up with an IAP cluster Right sizing VRD shortly. It will answer you questions.

 

Currently there are a lot of classified info which i can't share.

Thanks,
Abilash (ACCP, CWSP, CWAP, CWDP)
(Above answer is based on my knowledge and NOT an official statement from Aruba)
[Hit Kudos if my reply helps. ]
MVP
Posts: 2,948
Registered: ‎10-25-2011

Re: Information about Instants AP

Thank you very much for the info!

I hope we get the VRD really soon!

 

Cheers

Carlos

----------------------------------------------------
Product Manager - Aruba Networks
Alternetworks Corp
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