Why a Layer 2 traffic routes to Internet?

[ertanbar]

Hello to everyone, I have a question about Layer 2 traffic at my office.

We have a central hub and a branch office Router that used Cisco SD-WAN. Also have 2 data line as 1-point to point and 1-RadioLink Internet Line. At one of our branch office Layer 2 traffic routes to Internet, not other switch. Let's say a have structure like below;

(Host A) <--> (Switch A) <--> (Switch B) <-->(Host B).

Host A's wants to send packet to Host B and packets goes to Host B normally this way when p2p line is active only. But when I activated RadioLink Internet also (Want to use 2 line active-active) Host A's packets goes to Switch A than packets goes to Router and to the Internet, not Switch B. Host A, B, Switch A and B and Router are at the same subnet like 192.168.0.0/16.

What would it caused?

Thanks for answers,

[Reza Sharifi]

Hi,

Could it be that the point-to-point is providing WAN connectivity between locations and the RadioLink provides Internet access?

HTH

[ertanbar]

Yes, p2p provide between locations and RadioLink provides directly Internet access but the traffic that i mentioned about in the same location and same subnet. I dont want to traffic routes to central office or internet, just switching between Hosts and switches. Also addition;

I can't access the host from different branch offices or central office when I activate the RadioLink. Also cant access from the samme subnet too.

Thanks for answers,

[MHM Cisco World]

check the host IP and mask are it correct or not

MHM

[ertanbar]

for client or servers (hosts) or switches and routers?

[MHM Cisco World]

all please

MHM

[Richard Pidcock]

Is the site router between Switch A and Switch B?  A slightly better topology drawing would be helpful.  Also can you share configs?

[ertanbar]

Hey again,

I dropped basic topology below and check the all subnet masks are correct.