Hi Manolo,
I assume that that by "WisM - All data are tunneled to the WisM but data
processing are being done by the core switch" you are referring to the WiSM
as the core switch but the access points still terminate their tunnels at
the WiSM.
The Aruba can run in "tunnelled mode" like the cisco ap's or what Aruba
called bridged mode which is similar H-REAP or OEAP. The Tunnelling is
different though as the Aruba access point can setup GRE (on the LAN) or
IPsec (WAN/Internet as copied by Cisco and called OEAP ;) ) to tunnel the
data packets back to the controller. The 802.11 headers are not removed by
the Aruba access point but are de-capsulated at the Aruba controller.
I think what your friend may have been referring to with the distributed
work load in the Aruba example is the Master/Local/Local branch scenario
where the controllers are distributed across offices/buildings/subnets and
the access points terminate their tunnels to their "local" controller.
Hth
Andy
-----Original Message-----
From: Manolo Encelan
Sent: Tuesday, August 14, 2012 8:04 AM
To: AJ Low ; [email protected]
Subject: RE: [OSL | CCIE_Wireless] Cisco Controllers vs Arouba
Hi Andy,
Just to clear my question, I just got a call from one of my friend about the
different way how the WisM and Aruba wireless handles data packets and how
it is being distributed. I just want to ask if this is true.
WisM - All data are tunneled to the WisM but data processing are being done
by the core switch. All AP are just sending information to the controller
NO data processing are being process by the AP.
Aruba - Data processing or distributed workload are being used. Not all
data are reaching the controller and most of the data processing are being
done by the AP.
Is this true?
Cheers,
Manolo
-----Original Message-----
From: AJ Low [mailto:[email protected]]
Sent: Monday, August 13, 2012 5:39 PM
To: Manolo Encelan; [email protected]
Subject: Re: [OSL | CCIE_Wireless] Cisco Controllers vs Arouba
Hi,
Not sure if I've understood the question but the Aruba controllers work
differently to the Cisco's in terms of redundancy.
Normally you will have (in a large deployment) master and local controllers
but the master is not necessary. You can have multiple master and local
controllers backing each other up (mostly using vrrp).
All the tunnels terminate on local controller but the master distributes
most of the config to the local controllers.
The local controllers could be "local" to the master or at a branch office.
Basically though the "default" behaviour of the Aruba controllers and access
points is similar to the cisco controllers and access points. That is
excluding the Layer3 and "firewalling" capabilities of the Aruba
controllers.
cheers
Andy
-----Original Message-----
From: Manolo Encelan
Sent: Monday, August 13, 2012 9:55 AM
To: [email protected]
Subject: [OSL | CCIE_Wireless] Cisco Controllers vs Arouba
Hi Guys,
I know this is not the right group to ask this question but I would really
appreciate if you could give some light on this issue.
Cisco controllers vs Arouba: What's more better in terms of handling users
data traffic?
Network Information:
- Network setup is Collapse Network.
- 1 Wism2 controller inserted inside a 6500 core switch.
- 500 AP manage by the Wism
As to my understanding (correct me if I'm wrong) that all data gathered by
the APs will be process at the core switch while the Wism will just manage
the APs and the users. And somewhere in the future this could break the 6500
switch :(.
I've checked Arouba controller and I found out that all data processing are
done not on the core switches but at distribution layer. One big point for
Arouba.
I'm I right?
Thanks in advance.
NholS
_______________________________________________
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_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com
