Re: Wireless highavailability.... Cisco WLAN solutions

By the AP number should be better to implment a WLC. But in the mean while
you can use wireless domain services.
http://www.cisco.com/en/US/customer/products/hw/wireless/ps4570/products_configuration_example09186a00801c951f.shtml

2009/5/21 Patrick Saldou <psaldou_at_eplus.com>

> There are 2 types of roaming in wireless: Layer 2 and layer 3. Layer 2 is
> the most common and requires just overlap of the AP ranges. In layer 3 the
> client IP needs to change. Cisco solves this one by tunneling the traffic
> back to the original controller.
>
> I agree with Andrew, this is best done with a controller.
>
> Patrick Saldou
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> ALL From_NJ
> Sent: Thursday, May 21, 2009 9:48 AM
> To: Tony Blanco
> Cc: Daniel Fredrick; jockey wearer; GS CCIE-Lab; security
> Subject: Re: Wireless highavailability.... Cisco WLAN solutions
>
> Just a comment ... best to test it out yourself.
>
> Even using WPA and roaming with your laptop, you may not notice any dropped
> pings. If the pass codes are the same across all your APs, this
> re-authentication process can occur fairly quick and even within the
> timeout
> for a ping. It can re authenticate quickly.
>
> Is this quick enough for voice or your other apps? Too hard to say in an
> email ... as Tony says, a site survey is the best.
>
> Suggested to always use a controller, especially for the size you mention.
> Too much to add in an email and I have to jump on a call ... but a few
> things you gain from a controller that will impact your apps:
>
> DOS protection
> Channel and power automation across your APs, reporting for these
> Location and protection from rogue APs ...
> QoS policy enforcement
> Roll out, easier to support, ease of use
> blah blah blah ...might be a few more things to add, and I hope the point
> is
> made.
>
> When you invest in a Wifi network the size that you mention, whats the
> issue
> with going all the way and doing it right ...
>
> Whatever you choose, I am sure the super smart folk on this list (I bring
> down the average) would love to hear. Take care and good luck!!! HTH,
>
> Andrew Lee Lissitz
>
>
>
> On Thu, May 21, 2009 at 11:20 AM, Tony Blanco <blancoj17_at_yahoo.com> wrote:
>
> > The key for roamming is to make sure all your APs have some kind of
> > ovelapping among the AP's, make sure tha roamming is enable which is by
> > default....and you should be fine...the way to test is setup a laptop
> > connect to the wireless network and start pinging an ip address and then
> > move around and see if the pings continues failling and it does then you
> > know that you do not have wireless access on this specifically area and
> the
> > you need to relocated some APs around....The key about wireless network
> is
> > the site survey.....
> >
> >
> >
> > ----- Original Message ----
> > From: Daniel Fredrick <dfredrick_at_gmail.com>
> > To: jockey wearer <jockeywearer_at_gmail.com>
> > Cc: GS CCIE-Lab <ccielab_at_groupstudy.com>; security <
> > security_at_groupstudy.com>
> > Sent: Thursday, May 21, 2009 8:37:47 AM
> > Subject: Re: Wireless highavailability.... Cisco WLAN solutions
> >
> > Are you forgetting to say wireless AP? I think you are... but anyways you
> > have to enable roaming between the APs.
> >
> > Here is some light reading...
> >
> >
> >
> http://www.cisco.com/en/US/docs/wireless/controller/5.2/configuration/guide/c52ccfg.html#wp1098538
> >
> > I am not sure if you are using LWAPP or IOS on the APs, but this is for
> > LWAPP, which requires a WLC.
> >
> > In summary, you need to look up client roaming.
> >
> > HTH,
> > Dan
> >
> > On Thu, May 21, 2009 at 2:50 AM, jockey wearer <jockeywearer_at_gmail.com
> > >wrote:
> >
> > > Dear All,
> > >
> > > I have small query about Wireless Cisco WLAN solutions.
> > > We have 52 cisco wireless implemented on site and the requirement is If
> > > employee move from one place to another place he should not be
> > > disconnected.
> > > As I beleive If I am connected to One Wireless out of 52 and move to
> > other
> > > location which doesnot receive the signal of that wireless I will be
> > > disconnected .
> > > and need to reconnect other wireless within its range .
> > > is there any solution for this so i can be get connected ?
> > > thanks
> > >
> > > Regards
> > > prashant
> >
> >
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>
>
> --
> Andrew Lee Lissitz
> all.from.nj_at_gmail.com
>
>
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Received on Thu May 21 2009 - 15:29:27 ART