Bandwidth analysis EOIP tunnel

[abinaya.2.r]

I have a cisco WLC  model AIR-CT2504-K9 on version 8.3.143.0  serving as local WLC  and anchor WLC AIR-CT5508-K9 running on version 8.0.152.0.

I am planning to put another local WLC model AIR-CT2504-K9 version 8.0.133.0 to form EOIP tunnel with this anchor WLC. 

How do i consider the bandwidth analysis here? I Want to make sure that EIOP tunnel will not impact current bandwidth utilisation levels.

[abinaya.2.r]

I wanted to know how much bandwidth will be utilized on EOIP tunnel for around 20 users

[patoberli]

Two things, upgrade the other WLC also to 8.0.152.0 instead of 8.0.133.0.
Second, the bandwidth completely depends on the usage scenario. The encryption itself adds maybe 5-10% overhead (I guess). Now you must find out how much data your users might transfer, add the overhead, remove the amount that can be locally split away and you have a guess.

[abinaya.2.r]

Incase there are 20 people connecting to the anchor WLC over EOIP, how to calculate how much bandwidth they are using over the EOIP and if I anchor another foreign WLC to the same anchor WLC, how much is expected for another set of 10 users

[patoberli]

That completely depends on the data those users are expected to transfer! I can't guess that.

Do they need to watch/edit 4k videos over the link? Is it just e-mail and Word? .... Once you know how much data they can/should transfer, add another 20% for the encryption, just to be on the safe side.

[abinaya.2.r]

ok. But Is there a way to calculate the current bandwidth utilized on EOIP tunnel.?

[patoberli]

No idea, but you could look at the interface usage, if all the traffic goes through the tunnel.