From: Tim (ccie2be@nyc.rr.com)
Date: Thu Dec 22 2005 - 13:39:58 GMT-3
Hey Pete,
Thanks, I think I'm starting to get the idea but I'm still fuzzy on
something.
Let's say there's an AP and a bunch of wireless clients that are all
associated with the AP.
wireless client 1 wants to talk to wireless client B.
What does the AP do when it receives a frame wireless client A?
Does it do a mac address table lookup to determine that the frame from
client A should be re-transmitted out the radio interface?
It seems like an AP has only 2 choices when it gets a frame in on it's radio
interface: It either re-transmits it back out the radio interface or it
transmits it out the wired interface ( assuming the AP doesn't drop the
frame.)
Am I on track with this?
TIA, Tim
_____
From: Peter McCreesh [mailto:petermccreesh@gmail.com]
Sent: Thursday, December 22, 2005 11:19 AM
To: Tim
Cc: Arun Arumuganainar; ccielab@groupstudy.com
Subject: Re: Way OT: Aironet AP's -- Functionally more repeater or more
bridge?
Hi Tim,
The BVI interface gets the IP address and the Radio interface and ethernet
interface are just placed in the bridge group of the BVI (group 1 by
default).
It just behaves like a bridge.
If vlans are required you need to enable 802.1q subinterfaces on both the
radio and ethernet interface(int dot11radio 0.6 & int fastethernet0.6. these
will be assigned to a different bridge group than the main interface (eg
vlan 6 subifs are both in vlan 6) but you will still only need BVI1 to
communicate with the AP (just like the management IP on a switch)
Hope this helps,
Pete
On 12/22/05, Tim <ccie2be@nyc.rr.com> wrote:
Hi Arun,
Thanks for your response but I don't really understand it.
Any chance you can elaborate?
Is the physical ethernet port (interface), used as an uplink to the wired
portion of the network, actually a layer 3 interface and therefore gets an
ip address?
And, does the AP create a mac address table for the wireless clients to
which it's associated?
TIA, Tim
-----Original Message-----
From: Arun Arumuganainar [mailto: <mailto:aarumuga@hotmail.com>
aarumuga@hotmail.com]
Sent: Thursday, December 22, 2005 11:06 AM
To: Tim; ccielab@groupstudy.com
Subject: Re: Way OT: Aironet AP's -- Functionally more repeater or more
bridge?
Functionally they are another router and bridge tied together!!!
Thanks and Regards
Arun
----- Original Message -----
From: "Tim" <ccie2be@nyc.rr.com >
To: <ccielab@groupstudy.com>
Sent: Thursday, December 22, 2005 8:41 PM
Subject: Way OT: Aironet AP's -- Functionally more repeater or more bridge?
> Hi guys,
>
>
>
> I'm starting to refresh myself on this WLAN technology and I was
wondering.
>
>
>
> Would an AP be considered more a repeater or more a bridge?
>
>
>
> Or, does it depend on the topology?
>
>
>
>
>
> For example, suppose this were our 802.11 topology (and assume no ad-hoc
> peering between pc1 and pc2)
>
>
>
>
>
>
>
> pc 1 pc 2
>
>
>
>
>
> AP
>
> |
>
> |-----------------------------------------------------------|
>
> |
>
> server
>
>
>
>
>
> When pc 1 is talking to pc 2 via the AP, is the AP acting like a repeater?
>
>
>
> And, when pc 1 is talking to the server via the AP, is the AP acting like
a
> bridge (switch) and thus building a mac address table?
>
>
>
> I've been reviewing lots of WLAN material but nothing seems to discuss
this
> issue.
>
>
>
> If these are really dumb questions, please accept my apologies and try to
> set me straight.
>
>
>
> Thanks, Tim
>
> _______________________________________________________________________
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