MAC Address flapping errors on cisco switches interfaces

[MParashar]

Hi,

Since last 12-15 days I am observing mac flapping errors on my cisco switches. All these errors arised after the installation of tplink wifi in our network. Below are the topology details:

1 We have different blocks in our office and each block is having a dedicated cisco poe switch installed for wifi and cisco APs are connected on the interfaces. 2 no 10G port and 2 no  copper 1G port had been configured as trunk. Uplink to the cisco switch is from core(L3 Switch on interface tengig1/0/1 through fibre).

2. On Gi1/0/24 one tplink poe switch is connected & tplink APs are connected to tplink switch.

3 Same mapping has been followed in other blocks as well.

4. Both cisco and TPlink APs are broadcasting there respective configured ssids.

5. STP has been configured on all cisco switches.

6. If i am switching between cisco and tplink ssids on my unauthenticated wireless  device in the same block no mac address flapping is observed on the cisco switches.

7. If I am switching block on cisco ssids with unauthenticated wireless devices no mac flapping is observed.

8. But if i am switching the blocks on tplink ssid i.e randomly trying connecting with different tplink devices of 2 blocks at a time, I am observing mac flapping in between uplink interfaces and tplink uplink interface on cisco switches of 2 blocks i.e:

Warning (4)

SW_MATMMACFLAP_NOTIF Host xxxx.xxx2.cad0 in vlan 316 is flapping between port Gi1/0/24 and port Te1/0/1

This is only occuring in case if a user is unauthenticated  and trying to connect with tplink ssid and switching the blocks. if someone could help me in resolving the issue. 

[balaji.bandi]

in the Wifi network you see these logs when the client roams...what is this MAC address find out? 

[MParashar]

but in cisco wifi we are not observing any kind of flapping while roaming between the blocks it's only occuring in case of tplink. Mac addess is an android mobile device.

[balaji.bandi]

Depends on how TPLINK Does, so we do not have any visibility, if you like to go more deep have packet capture against that MAC and see what is happening to get more visibility.

[marce1000]

 - MAC address flapping is normal observed on wireless deployments is considered harmless and or can be reported when a device is roaming between different access points , 

 M.

[MParashar]

We had used multiple vendors wifi but observed this behaviour only in case of tplink.

[hanid7220]

If the client roams in the wireless network, you see these logs...what does this MAC address tell you?