topic Internet slow on SSID passing through anchor in Wireless

Internet slow on SSID passing through anchor

sreelalggbm — Sun, 04 Jul 2021 05:46:44 GMT

Hai,

I have a wireless network with following structure.

2 WLCs for corporate

2 WLCs for Guest which is on DMZ zone.

EOIP is configured between CORP WLC to guest WLC and everything is working fine.

We have 1 corporate SSID for Inside users and trusted users.

1 for Guest users, customers and untrusted users which is passing through EOIP tunnel.

Now we ave noticed that internet speed is very slow for guest users. But from corporate its very fast and both of them are using the same internet connection.

I have done the following test.

Connected my PC to DMZ switch and tested the internet speed from guest vlan .It was very fast .But when it is on wireless, speeds is very slow.

Do we need to do something on the WLC config for solve this issue?

Thanks

Sreelal

Re: Internet slow on SSID passing through anchor

Stephen Rodriguez — Sun, 07 Oct 2012 11:24:25 GMT

On the guest WLC how many ports do you have connected. Is it possible that here is a half duplex link between the anchor and the Internet pipe?

Steve

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Internet slow on SSID passing through anchor

sreelalggbm — Sun, 07 Oct 2012 11:41:09 GMT

Hai,

Currently is configured as 1000MB full duplex.

Do I need to try halfduplex

Re: Internet slow on SSID passing through anchor

Stephen Rodriguez — Sun, 07 Oct 2012 12:19:06 GMT

No the WLC should be 1000/full. You may want to add another port and configure an etherchannel/LAG.

The half duplex question was more for a device upstream from the WLC.

Steve

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Re: Internet slow on SSID passing through anchor

George Stefanick — Sun, 07 Oct 2012 15:32:29 GMT

Can you share:

What code are your controllers on

Have you checked the ports the controllers are connected to for errors

Are you using lag or ports

Are you seeing alerts on the WLCs that the tunnels are breaking

__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin

Re: Internet slow on SSID passing through anchor

Yahya Jaber — Sun, 07 Oct 2012 16:59:47 GMT

on what basis did you determine that the internet connection is slow?

have you took in consideration number of connected clients at the AP at the same time? what applications are the guests using?

have you tried the iperf test? have you noticed that on off-shift hours?

one intresting solution i found, that would help in the guest environment is http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080baf502.shtml

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 04:39:51 GMT

Hai,

WLCs are running the code 7.0.235

WLC is connected to the switch ports with etherchannel

LAG is already enabled on WLC.Tunnels are stable.

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 04:48:09 GMT

Hai,

Thanks for your reply.

We have 1 corporate SSID for Inside users and trusted users.

1 SSID for Guest users, customers and untrusted users which is passing through EOIP tunnel.

Internet speed is very slow for guest users. But from corporate its very fast and both of them are using the same internet connection.

I tested with speedtest.net on my after office hours.

Corporate SSID gave more than 50 MB download speed.

Guest SSID is giving less than 7 MB

Also I have done the following test.

Connected my PC to DMZ switch and tested the internet speed from guest vlan .It was giving me 50 MB speed .But when it is on wireless, speeds is very slow.

I didnot configure any rate limit features.SSID qos setting is configured as SILVER

Do you have any clue on this issue?

Thanks in advance

Sreelal

Internet slow on SSID passing through anchor

Yahya Jaber — Mon, 08 Oct 2012 06:00:30 GMT

Hi Sreelal,

Does it happen on all AP's? if not,can you try and upload the show tech from the AP

try the iperf test, it is better for connection speed.

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 06:13:00 GMT

Dear Yahya,

We have more than 30 accesspoints and this issue is happening for all AP

EOIP tunnel is passing through like this

From corp WLC-->Coreswitch--->Packetshaper--> Checkpoint firewall-->ASA Firewall for guest wifi --> DMZ SWITCH -->Guest WLC

We removed the packet shaper and there wasnt any improvement on the speed.Checkpoint is our perimetre firewall

I couldnt download the iperf software Do you have any link

Do we need to make any change on the WLC.

Thanks a lot for your time

Regards

Sreelal

Internet slow on SSID passing through anchor

Yahya Jaber — Mon, 08 Oct 2012 06:29:13 GMT

removing the packetshaper wont do any good, because you already tested with other wired client on the same topology.

the iperf http://www.noc.ucf.edu/Tools/Iperf/iperf.exe

http://www.debianhelp.co.uk/manpages/iperfmanpage.txt

and check the client driver you are tesing with.

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 07:09:05 GMT

I am doubtfull that how this will help us..

Also I think we can only test the speed between inside to dmz (pc to pc)

Internet slow on SSID passing through anchor

Yahya Jaber — Mon, 08 Oct 2012 07:15:59 GMT

this will show what is the speed that the wireless clients are having other than speedtest.net, if you made sure that the wireless speed is ok, you will have to check other checkpoints between the two WLC's

it is just to make sure that the wireless guest WLC is ok

Internet slow on SSID passing through anchor

George Stefanick — Mon, 08 Oct 2012 07:27:47 GMT

You mentioned you are getting 50 meg download speed and only 7 on guest.

What aps are you using to get 50 meg down ?

__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 07:31:11 GMT

I tested with speedtest.net on my after office hours

Internet slow on SSID passing through anchor

Yahya Jaber — Mon, 08 Oct 2012 07:34:46 GMT

You are having 50Meg download speed on wireless? what is the AP model that provids you with that?

try to test the iperf on both the corporate and the guest now..and compare the results.

Internet slow on SSID passing through anchor

George Stefanick — Mon, 08 Oct 2012 07:34:48 GMT

Right, but what model APs do you have to get 50 mb down ? You have to be using 802.11n for that speed. And if thats the case is your guest SSID locked to only 802.11g ?

__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 07:40:04 GMT

I am using same laptop for both ssid

WLAN Radio Policy is activated with all radio 802/11 a/b/g/n.

corporate and guest having the same radio settings

Internet slow on SSID passing through anchor

sreelalggbm — Mon, 08 Oct 2012 07:40:58 GMT

I am using AP 1252 and AP 3500

Internet slow on SSID passing through anchor

George Stefanick — Mon, 08 Oct 2012 07:50:10 GMT

Are you using bandwidth limiting on the SSID ? What is your QoS set to on both SSIDs?

__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin