Solved

Cisco WLC 5508 Proper Design For The Topology

Posted on 2016-09-21
2
107 Views
Last Modified: 2016-09-27
We lost the configuration we had on our WLC 5508 controller and had to start from scratch. Now we are trying to figure out how to properly configure everything. Right now we are on software version 8.3.102.0.

Here is our topology:
- We have 7 sites with APs.
- Each site uses the same vlans, but different subnets.
Example:
Site 1
VLAN 100 - DATA - 10.1.100.0/24
VLAN 200 - VOICE - 10.1.200.0/24
VLAN 300 - WIRELESS APs - 10.1.300.0/24
VLAN 400 - GUEST NETWORK - 10.1.400.0/24
Site 2
VLAN 100 - DATA - 10.2.100.0/24
VLAN 200 - VOICE - 10.2.200.0/24
VLAN 300 - WIRELESS APs - 10.2.300.0/24
VLAN 400 - GUEST NETWORK - 10.2.400.0/24

All subnets default gateway to a router local at each site which handles DHCP for all local VLANs, and those routers talk via MetroEthernet to Site 1 where the WLC resides. The WLC has a management address outside the 10.x.x.x range and everything is routed accordingly.

I know we had FlexConnect groups configured before for each site, but from my reading, it sounds like having the same VLAN numbers at each site will hinder the FlexConnect configuration and cause confusion if multiple FlexConnect groups are configured with the same VLAN numbers but use different subnets. Is this true?

Given this topology, what is the best way to configure the WLC? Is FlexConnect the way to go? If so, Should the FlexConnect Group WLAN VLAN Mappings be configured a certain way?
0
Comment
Question by:Andrew Watson
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 46

Accepted Solution

by:
Craig Beck earned 500 total points
ID: 41810804
Using the same VLAN ID at each site is fine.  The WLC uses the VLAN ID to tell the AP which VLAN to put client traffic on.  You don't have to put different VLAN IDs at each site, so there's no reason why it'll cause any issues for you.

If the APs are at sites which are remotely connected to the WLC, via WAN link for example, you want to use FlexConnect to ensure that traffic doesn't go over the WAN to get to clients in the same office.

So, configure the WLANs you need, configure AP Groups and FlexConnect groups for each site.  Put the APs in the right groups and that should be that.

Here's a good guide...
https://supportforums.cisco.com/document/98646/wireless-lan-flexconnect-configuration-example
1
 

Author Closing Comment

by:Andrew Watson
ID: 41819000
Very helpful. In fact, I found that putting the APs in AP groups actually fixed a lot of weird problems we were having. Evidently all the APs being in the default ap group causes certain settings not to be used properly. We had a Cisco 7925 wireless phone that just wouldn't stay connected to the wireless for more than a few seconds at locations with multiple APs, but at the location with only one AP, it stayed connected for minutes at a time before disconnecting and reconnecting just long enough to drop calls. Very weird. But as soon as I moved each site's APs to their own AP groups (not flexconnect groups), the phone started working perfectly. We had been changing all kinds of global setting to get the phone to work but none of it did until the AP groups.
0

Featured Post

NFR key for Veeam Agent for Linux

Veeam is happy to provide a free NFR license for one year.  It allows for the non‑production use and valid for five workstations and two servers. Veeam Agent for Linux is a simple backup tool for your Linux installations, both on‑premises and in the public cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Multi-source agreements are important because they set standards that all manufacturers should follow to ensure that devices are compatible with multiple vendors. The multi-source agreement (MSA) is an agreement that establishes how multiple vendors…
DECT technology has become a popular standard for wireless voice communication. DECT devices are not likely to be affected by other electronic devices and signals because they operate in a separate frequency-band.
This Micro Tutorial will show you how to maximize your wireless card to its maximum capability. This will be demonstrated using Intel(R) Centrino(R) Wireless-N 2230 wireless card on Windows 8 operating system.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question