I think the ubnt radios alter or do some funny magic with the mac addresses 
when bridging. For a clear bridge, try using them in wds, which will of course 
prevent adequate security.

I would also turn the power down a little, -28 will do more harm than good 
especially if you're trying to put two on a dish. I understand the bullets 
can't be turned down below 1 or 10dbm afaik.

I would use HP's trunking instead of lacp and use each link as a trunk 
port. 

2524-->radio-->radio-->2524

The switch would still play dumb though if a link went down and half your 
traffic would be botched, based on how the HP divies up the traffic by mac 
address. You'd have to have a 26xx switch which can determine link state 
across a trunk port via keepalive traffic instead of interface status.

Things to get you beyond 26mbps might include a MT link (30-35mbps), 
trangolink45 (which works at 5.4ghz as well), or alvarion b100 gear, or VL 
gear (about 32mbps)


On Thu, Jun 25, 2009 at 08:39:00AM -0600, Ryan Ghering wrote:
> Hello all, I got an issue that I haven't delt with before.
> 
> note we HAVE done this scenario before just with diff radios and it worked.
> 
> The Setup..
> 
> we have a 3/4 mile long radio shot to one of our towers that we wanted to
> increase bandwidth to as well as give it some redundancy. So
> we bought 2 links of bullet5's and 2 pac wireless 2 foot dual pole dishes. (
> and yes the output DBM is set to EIRP max with the dishes. )
> 
> We get the link up the radios work awesome. -28 to -30 dbm strength. in
> 54mbps mode. Speedtest on both links shows 26 mbps per radio.
> 
> I add in the switches which one is set active for the LACP link on ports 22
> 23 and 24  port 22 is the old backhaul which is a simple cisco 1242 bridged
> radio link
> port 23 and 24 are the bullets. ( same on both switches btw ) the other
> switch is pretty much in default mode, as per HP's config example.
> 
> I enable the switch ports for the bullets to allow them to link up the lacp
> and it works fine for a moment then the arp flood from hell happens.
> Devices all over my network stop responding for long periods of time.random
> customers stop passing traffic.
> 
> Nothing I do gets me past this point.
> 
> A more in depth look at the network for this link for you.
> 
> Border-Router -> Extreme layer3 switch -> Core router -> HP2624 Switch ->
> Packetshaper 4500ISP -> Extreme layer3 switch -> hp2524 (lacp) -> Cisco +
> Bullet5's --- Cisco + Bullet5's -> HP2524 (lacp) -> Canopy CMM -> Various
> AP's.
> 
> I don't need the Cisco backhaul anylonger however it would be nice to
> maintain as backup. (Which BTW is linked up at 54mbps as well.)
> Also I can't seem to ping any devices in the LACP link after they connect.
> 
> Anyone have any ideas why this is going on? and how to fix it?
> 
> Thanks in advance
> Ryan Ghering
> Network Operations Manager
> Plains.Net
> 
> 
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-- 
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