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In general, The connection should be like PC---SW---ROUTER---Many ISP router---Router---SW---PC

so the packet will be from layer 2 ---layer 3---layer 2

What if I put one layer 2 switch in the network

PC---SW---ROUTER---MANY ISP ROUTER---LAYER 2 SW---MANY ISP ROUTER---ROUTER---SW---PC

Can any network form between 2 PC? What should be configured on the layer 2 SW in the middle of the network ? I would say default gateway is not enough ? Of course , no normal people would do this ,but what-if ?

enter image description here

In general, The connection should be like PC---SW---ROUTER---Many ISP router---Router---SW---PC

so the packet will be from layer 2 ---layer 3---layer 2

What if I put one layer 2 switch in the network

PC---SW---ROUTER---MANY ISP ROUTER---LAYER 2 SW---MANY ISP ROUTER---ROUTER---SW---PC

Can any network form between 2 PC? What should be configured on the layer 2 SW in the middle of the network ? I would say default gateway is not enough ? Of course , no normal people would do this ,but what-if ?

In general, The connection should be like PC---SW---ROUTER---Many ISP router---Router---SW---PC

so the packet will be from layer 2 ---layer 3---layer 2

What if I put one layer 2 switch in the network

PC---SW---ROUTER---MANY ISP ROUTER---LAYER 2 SW---MANY ISP ROUTER---ROUTER---SW---PC

Can any network form between 2 PC? What should be configured on the layer 2 SW in the middle of the network ? I would say default gateway is not enough ? Of course , no normal people would do this ,but what-if ?

enter image description here

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One layer 2 switch in the middle of router network

In general, The connection should be like PC---SW---ROUTER---Many ISP router---Router---SW---PC

so the packet will be from layer 2 ---layer 3---layer 2

What if I put one layer 2 switch in the network

PC---SW---ROUTER---MANY ISP ROUTER---LAYER 2 SW---MANY ISP ROUTER---ROUTER---SW---PC

Can any network form between 2 PC? What should be configured on the layer 2 SW in the middle of the network ? I would say default gateway is not enough ? Of course , no normal people would do this ,but what-if ?