Wireless VoIP Across Subnets (Cores)

[oneirishpollack]

We have a campus with 3 buildings

Building one and two is internally routed with a L3 switch (6509)         10.2.0.0/16

Building three is routed with a L3 switch (4900)                                10.3.0.0/16

Our VoIP network in building one and two is 10.2.11.0/24

Our VoIP network in building one and two is 10.3.111.0/24

Our wireless system is a Meraki-based system that we just implemented.

The issue is that the wireless completely drops when moving from one subnet to the other. So in effect, service is pretty good when going between building one and two (share the same core and subnet), but drops when going into building 3. Signal to AP is just fine.

What do I need to look at and/or do to get prevents drops when roaming between the two subnets (cores) ?

[Rasika Nayanajith]

Do not have any knowledge about Meraki wireless system. But as per your problem discription mobility/roaming is not working in your network.

In a normal cisco WLC environment client will not change its IP when roaming, in order to provide smooth roaming experience. Traffic will tunnel back to original controller where they first associate to network.

You need to bring this to the people (hope this was not deploy by yourself) who deploy this and ask them to fix it

Rasika

[Leo Laohoo]

The issue is that the wireless completely drops when moving from one subnet to the other.

First, what is this wireless handset you are using?

Next is wireless coverage, particularly wireless overlap?  How much is the wireless coverage overlapping in between cells?

[abwahid]

Hi,

If your Meraki wireless system support mobility/roaming then enable and configure this feature which will probably resolve your issue.