The XO products I believe are suppose to have some "hot standby(as Cisco
refers to it)" capabilities.  When inter mixing vendor's gear that does not
help though.  More of an FYI reply to the glad I got Cisco comment as
opposed to a solution to the bridge loop problem.  I would have probably
used Cisco as well but they did not have an outdoor solution to eliminate
feet and feet of coax dB loss up a 160' tower.

-----Original Message-----
From: shoffman [mailto:[EMAIL PROTECTED] 
Sent: Friday, November 07, 2003 12:48 PM
To: [EMAIL PROTECTED]
Subject: Re: [smartBridges] Riddle me this...

No that this is too late for your deployment, but Cisco actually has a 
Back-up radio capability that prevents this.  I.e. the two radios talk, 
and if the back-up for what ever reason can not talk to the primary 
radio, it goes into operation automagicly..  Have I said before I am glad 
I went Cisco?

Scott


-----Original Message-----
From: "Colin Watson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Date: Fri, 7 Nov 2003 18:24:49 -0000
Subject: Re: [smartBridges] Riddle me this...

> Airbridges don't announce routes tho? A router does that - all
> 'bridges'
> operate on layer 2 - They hold MAC Address tables of connected devices
> only.
> If you have two bridges operating, you may encounter bridging loops
> where
> one sends the frame, the other sends it back and so on ad infinitum.
> 
> http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186
> a0080
> 1c137e.shtml
> 
> ----- Original Message -----
> From: "Rick Kosick" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, November 07, 2003 5:46 PM
> Subject: [smartBridges] Riddle me this...
> 
> 
> > I'm running another brand bridge as a primary backhaul (Airaya).
> > I installed the SB's as a backup but the thing is, I need to let one
> of
> the
> > twp SB units remained powered on (the one at the tower). This way, if
> the
> > main backhaul dies, I can power on the SB on the ground and reach the
> lit
> > unit.
> >
> > Problem is...  with two bridges running, its causing Ethernet
> interference.
> > More than likely the airPoint is announcing a route back to the
> powered-down
> > airBridge and creating two paths back to the NOC.
> >
> > If I unplug the airPoint from the ethernet, all is good again.
> >
> > Any way to have the airPoint stop this?
> > Or maybe the move is to swap the units so that the airPoint is at the
> NOC
> on
> > the ground and the airBridge is on the tower?
> > ===
> > Rick Kosick
> > StarLinX Internet Service
> >
> > The PART-15.ORG smartBridges Discussion List
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> >
> 
> 
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