LAN backbone

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  • Updated 4 years ago
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A WLAN is only as good as it LAN backbone. Any recommendations?
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Ernie Johnston

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Posted 4 years ago

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Nicolas Maton

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Deploy a solid switching infrastructure. One key supplier in switching is Cisco. You can't go wrong there.
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Bryan Harkins

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Build the LAN to support the WLAN.  Build the WLAN to support the client devices and applications in the environment in which they must work.  We used to hear wired by default wireless by exception.  Now, it is wireless by default and wired as necessary to support the wireless.
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Travis Kaufman, Champ

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Well put Bryan - Cisco / HP / Brocade Fiber options of 10GB down the line - Plan for the future, buy once, cry once. 
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David Coleman, Official Rep

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Plan on the need for PoE+ (802.3at) - 30 watts in the very near future.   Next generation 802.11ac APs will most likely be 4x4:4 radios and PoE+ power will be needed.

It remains to be seen if we will need to run dual-Gigabit cables to 802.11ac APs and aggregate the links to support the WLAN 802.11ac bandwidth.  We are not there yet, but throughout my career, whenever the speeds increased, the applications followed.
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Matthew Gast

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To embellish on what David said: run the best cable you can to the AP location because you can often upgrade the speed by swapping out the equipment on both ends of the link.  If we get a standards-based choice for a speed between 1G and 10G, that would be the best case scenario.

And yes, networking is like the famous quote from Field of Dreams.  If you build it, they will come.
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Rasika Nayanajith

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N-BaseT (2.5G & 5G) using existing cat5e & 6 may come in 2015 if everyone agree it is the way forward.
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Gregor Vucajnk, Official Rep

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Hey Rasika, did not know that you are contributing to this community! Welcome my friend.

To all, Rasika is a bonnafide WiFi pro and also the author of an awesome blog:

Highly recommended! 
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J. Goodnough, Champ

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In a greenfield, Cat6 and whatever solid switches you find make the most sense. I can't tell you what your needs are there. Personally, I run an Enterasys (Extreme) shop, but Cisco, Juniper, HP all make solid enterprise-grade switches as well.
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BJ, Champ

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Having been in a traditionally Cisco shop, I've had success deploying Aerohive's switches of late at the access layer. Once they integrate application visibility, it will be that much more powerful.  
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Terence Fleming ThinkWireless, Champ

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VLANs. If your existing network is one flat subnet with (say) 100 devices, don't expect to be able to add 300 wireless clients to the same subnet without running into difficulty.

Keep those wired ARP requests off the wireless by setting up VLANs for the wireless clients.  Better still, put the APs (and the Hive manager if local) on their own VLAN to keep those inter-AP communications on their own network.