What we have here is a failure to communicate?  I’m not understanding Josh’s 
suggestion, you mean do 4 SSIDs?

Currently WAP1 has SSIDs Office and Office-5G.  WAP2 has SSIDs TVRoom and 
TVRoom-5G.  So there are already 4 SSIDs.

But each WAP is fed from an Ethernet port on the Mikrotik.  And when a wireless 
client moves between WAPs, it is moving between Mikrotik ports.  I believe the 
5 minute ageing time on the Mikrotik bridge means that MAC address persists on 
the original port for 5 minutes after it has appeared on another port.  Maybe 
I’m wrong about this, but that’s what appears to be happening.  The Bridge 
table shows the MAC address only on one port, but the traffic makes me believe 
it is actually being flooded to both ports.  This doesn’t really seem right to 
me.  On a switch, I would expect a MAC address to move pretty quickly to the 
new port, or if it isn’t in the table at all, to be flooded to all ports.

And yes I don’t think the customer needs 2 WAPs to cover his house, but the 
customer is always right.  And the Mikrotik is leased/managed, the Netgears he 
owns.  But I get sucked into it because ... well, do I really have to explain?


From: Paul McCall 
Sent: Thursday, October 22, 2015 8:37 AM
To: [email protected] 
Subject: Re: [AFMUG] 2 wireless APs on bridged Mikrotik ports

+1 on Josh’s suggestions

 

From: Af [mailto:[email protected]] On Behalf Of Josh Luthman
Sent: Thursday, October 22, 2015 9:27 AM
To: [email protected]
Subject: Re: [AFMUG] 2 wireless APs on bridged Mikrotik ports

 

Nope, you already have my suggestion.

Can you try your idea of a 10s timeout?

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Oct 22, 2015 12:28 AM, "Ken Hohhof" <[email protected]> wrote:

There are 4 SSIDs.  But customer has each device “join” each SSID.  I expected 
the devices to pick one SSID and stay with it down to 1 bar, but they seem very 
fickle.

 

Or are you saying make all the SSIDs the same?  I don’t think it matters, there 
are 4 wireless networks, even if they are all named the same.

 

From: Josh Luthman 

Sent: Wednesday, October 21, 2015 11:03 PM

To: [email protected] 

Subject: Re: [AFMUG] 2 wireless APs on bridged Mikrotik ports

 

Why not do 4 SSIDs?  Add the profiles once and then done.

I think your issue is probably the APs, not the bridge/switch part but it 
doesn't really help.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Oct 21, 2015 11:59 PM, "Ken Hohhof" <[email protected]> wrote:

I have a customer who insisted he needed 2 dual band wireless APs 25 feet apart 
in his ranch house.  So we have a managed non-WiFi Mikrotik RB2011 in his 
basement, feeding two Netgear routers in wireless AP mode.  I have the LAN 
ports bridged rather than using the switch chips, since there's plenty of CPU 
power and it gives more visibility into the traffic.

So counting 2.4 GHz and 5 GHz, the customer has 4 SSIDs and I think his devices 
like iPads are jumping back and forth between networks.  And I think bad things 
are happening because the bridging table can't keep track of which port the 
clients are on.  I see weird things like the same amount of traffic going out 
the ports to both wireless APs.  I never see a MAC address on both bridge 
ports, but it is acting like the Mikrotik is flooding traffic to both ports.

Should I be tweaking parameters like reducing the ageing time below the default 
5 minutes?  Should I be using the switch chips and not bridging?

Is this a typical problem when devices can choose between multiple APs close 
together on the same bridged LAN? 

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