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EIGRP layer2 and layer 3

Last Modified: 2012-05-12
If one switch has only layer 2 and the other switch has layer 2 and 3 will the route have to go through the switch with layer 3 connection even though both have direct layer 2 connections?

Two distribution switches 1 and 2 are connected by a trunk that allows all vlans across including vlans 3 and 10.

Switch 1 and 2 each has a seperate trunk connection to a switch 3 that then connects a single leg connection to a router with an ip address of which is in the vlan 3 network.

Switch 1 runs eigrp protocol and when I run show ip route it shows "connected" *directly connected to vlan 3

Switch 2 runs eigrp protocol and when I run show ip route it shows "eigrp 123" * from via vlan 10"

On switch 2 when I run show ip route it shows "connected" *directly connected via vlan 3

On switch 2 when I run traceroute I get 1st hop and 2nd hop

Switch 2 has a vlan int for vlan 10 but not no vlan int for vlan 3

Switch 1 has a vlan int for both vlan 10 and 3

Is this happening because switch 2 does not have an ip address/interface in vlan 10 and then switch 1 is advertises across vlan 10 to switch 2 even though there is trunk between switch 1 and 2 that allows vlan 10 and 3?

I originally expected to see sh ip route as *directly connected to vlan 3 on both switch 1 and 2?

Both switch 1 and switch 2 have a layer 2 connection to vlan 3 but only switch 1 has a layer 3 connection to vlan 3
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