Wireless Access

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Occasional Contributor II

Re: Large client base - vlan pools or large subnet

Thank you.

We are currently dropping broadcasts at VAP level, so no problem there.

Should we enable "Convert Broadcast ARP requests to unicast" or not?

Useful post? kudos appreciated!
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Guru Elite

Re: Large client base - vlan pools or large subnet

Yes.  It should already be on by default

*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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Contributor II

Re: Large client base - vlan pools or large subnet


@cjoseph wrote:

Please do BCMC Optimization on the VLANs, as well.

  


Where is that setting? 

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Guru Elite

Re: Large client base - vlan pools or large subnet

bcmc.png


*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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Contributor II

Re: Large client base - vlan pools or large subnet

Because Network -> VLAN would be too obvious I guess. :)

 

Thanks.

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Occasional Contributor II

Re: Large client base - vlan pools or large subnet

Hi cjoseph,

 

Now that this thread is 8 months old, have there been any issues that you have seen with this approach?

 

I generally would love to be able to eliminate the complex VAP/AP groups that were caused by the need for different vlans.

 

We currently have 2 3600s in our DC with 100 remote locations (2 AP105s per site) supporting 10-40 users on average at any time at any site. At design stages based on the old ways of thinking we were advised to have 10 sites per a vlan, which if we expanded to all 1600+ sites would just be unbareable.

 

It sounds like that since we are a wireless only deployment we may be able to cut this down to one vlan/vap and regain controll of the massive number of AP groups that we had to create. Do you see any problems with this with a remote AP network?

 

Thanks

Alex

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Guru Elite

Re: Large client base - vlan pools or large subnet

As you are deployed today, you should not have any problems. You would enable drop broadcast and Multicast on the Virtual AP. Bcmc optimization would also need to be deployed on the VLAN interface if you also have any wired traffic.


*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 8.5 User Guide
InstantOS 8.5 User Guide
Airheads Knowledgebase
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Aruba Central Documentation
ArubaOS Consolidated Release Notes
Aruba VIA ASE Solution - Configure VIA VPN
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Occasional Contributor II

Re: Large client base - vlan pools or large subnet

We switched over from smaller vlan's (pooling) to three large /16 subnets.

No problems so far and everything runs smooth.

 

A less complex situation and no problems with full scopes and inappropriate scope distribution.

Useful post? kudos appreciated!
Highlighted
Frequent Contributor I

Re: Large client base - vlan pools or large subnet

Hi everybody, good thread here.

 

We are changing a VAP with /22 vlan scope to a /20 scope.

 

First of all:

- This VAP is in tunnel mode. I think :-), because the users are in a different vlan of APs.

- The default gateway of this vlan is a Check Point firewall, not the controller.

- 802.1x auth over a NPS server.

- 3400/3200 model controllers with ArubaOS 6.1.3.7

- We don't have multicast services

 

What I need to do a good configuration?

1. Convert Broadcast ARP requests to unicast at VAP already enabled.

2. broadcast-filter all at VAP?

3. BC/MC Rate Optimization at SSID profile?

4. firewall broadcast-filter arp enabled at all controllers?

5. BC/MC optimization at interface vlan? But this vlan don't have IP configured.

What more?

 

Thank you.

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Frequent Contributor I

Re: Large client base - vlan pools or large subnet

Hi everybody, Anyone have any tips on the questions above? Thank you.
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