RE: Meru and Broadcast Suppression

We here at Liberty University also use Aruba's VLAN pooling with /23 subnets. In our legacy fat AP system we used /20 subnets and performance was poor. Bruce Osborne Liberty University From: Brooks, Stan [mailto:stan.bro...@emory.edu] Sent: Wednesday, May 27, 2009 7:00 PM Subject: Re: Meru and

RE: [WIRELESS-LAN] Meru and Broadcast Suppression

Yes, the /20 is spread across all 5 controllers handling our main campus. It is very nice to have the one subnet that covers everywhere. Matt Barber Network Analyst Morrisville State College 315-684-6053 From: The EDUCAUSE Wireless Issues Constituent Group Listserv

RE: [WIRELESS-LAN] Meru and Broadcast Suppression

Thanks for all the help Matt! What would you say your average usage (clients connected) is at peak times? Scott Irey Network Telecom Systems Engineer Oakland University Office: 248.370.2808 Mobile: 248.505.9827 From: The EDUCAUSE Wireless Issues Constituent Group Listserv

RE: [WIRELESS-LAN] Meru and Broadcast Suppression

You are welcome! The highest simultaneous count I have seen is around 1600. We are typically somewhere between 1000 and 1500 (we have around 3,300 students), but that has been rising. We will probably hit well over 1700 in the fall semester. More and more students are coming in with iPod

RE: [WIRELESS-LAN] Meru and Broadcast Suppression

Thanks again Matt! What controllers are you using? With the one vlan on all 5 controllers did you still need to implement an inter-controller roaming domain? Thanks again so much for your time! Scott Irey Network Telecom Systems Engineer Oakland University Office: 248.370.2808 Mobile:

RE: [WIRELESS-LAN] Meru and Broadcast Suppression

We are using MC5000 blades. All of our controllers are in the same subnet, so we didn't need to implement an inter-controller roaming domain. We still defined the controller index on each one, as that is recommended in the documentation even if you don't use the roaming feature. Take care,

ARuba VLAN pooling

What is this VLAN pooling? How does it work? ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

Re: [WIRELESS-LAN] ARuba VLAN pooling

Assuming you you have multiple client side vlans already configured on your controller, you assign those vlans to the vap (currently your only specifying one vlan, just comma seperate and add another ). Now when a user associates, there is hash done on the client mac address and they are placed

Re: [WIRELESS-LAN] ARuba VLAN pooling

We find that Vlan Pooling does a really good job at balancing the users across our 24 client vlans. We have eighteen client vlans on our main SSID and I'm impressed with the even distribution this feature offers. If you have multiple local controllers make sure that the client vlans are

Re: [WIRELESS-LAN] ARuba VLAN pooling

We've also loved vlan pooling, and the distribution of clients across the /24's is excellent. As we start to see our vlans becoming highly utilized, we simply add another /24 to the pool and slowly the distribution evens out again, current users are not affected until they disconnect and

Re: [WIRELESS-LAN] ARuba VLAN pooling

If my memory serves me well, there is a capacity caveat to Aruba's VLAN pooling at the moment: (might change in a future code release) 1 SSID = 1 VAP = 1 Pool = Max 32 VLANs So if you use /24, a maximum of 8096 ((256 - 3(gateway, network, broadcast)) * 32) users is the limit for one SSID.

RE: [WIRELESS-LAN] ARuba VLAN pooling

Thanks Philippe, Is load-balancing the only algorithm available for this method of VLAN assignment? --Bruce Johnson From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Philippe Hanset Sent:

Re: [WIRELESS-LAN] ARuba VLAN pooling

Philippe, If that's a vlan limit could I just size my vlans as /23's instead and get twice the user count? Mike ** Michael Dickson Network Analyst University of Massachusetts Network Systems and Services *** Philippe Hanset wrote:

RE: [WIRELESS-LAN] ARuba VLAN pooling

Actually, the VLANs are assigned to a particular controller, so your limit (using /24 - 8096) is per controller. If you need more, go with /23 subnets. Any way you cut it, it's a lot of users per VAP or per Controller. We've been using VLAN pooling for something like 3 or 4 years now and it's

Re: [WIRELESS-LAN] ARuba VLAN pooling

Bruce, VLAN pooling is the default assignment method. On top of that you still have MAC address assignment, 802.1x, Portal based identity... Does that answer your questions? Philippe On May 28, 2009, at 12:59 PM, Johnson, Bruce T wrote: Thanks Philippe, Is load-balancing the only algorithm

Re: [WIRELESS-LAN] ARuba VLAN pooling

In our case we do Mobility by using VLAN pooling (layer 2 roaming). So our VLANs are defined on all controllers (and terminated on our Routers). The limit of 8096 still persists, unless we use a different size subnet per VLAN (/23, /22 etc...) If one decides to terminate a VLAN on a

RE: [WIRELESS-LAN] ARuba VLAN pooling

Thanks Philippe, Certainly a nice option to have. --Bruce Johnson From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:wireless-...@listserv.educause.edu] On Behalf Of Philippe Hanset Sent: Thursday, May 28, 2009 2:26 PM To:

Re: [WIRELESS-LAN] ARuba VLAN pooling

Have any of you that are using the VLAN pooling run into problems with users that want to do link-local-ish stuff with people physically co- located close to them? Our classic example is accessing iTunes between computers co-located near one another. Unless they both end up on the same

Re: [WIRELESS-LAN] ARuba VLAN pooling

-With VLAN pooling you will see Music from people scattered around the campus on the same VLAN -If you assign VLANs for locations, they will see each other in close proximity but will complain that they cannot see the music of their friends in the dorms... (interesting VLAN management as