EtherChannel from Layer 2 Switch to Layer 3 multilayer Switch VLAN Trunking

[Melvinb1981]

Good Day,

Is it possible to carry vlan traffic across a layer 2 etherchannel switch to a multilayer (Layer 3) Switch.

I can leave the multilayer switch as a layer 2 device, however I wanted to carry the vlan traffic. I was thinking of trying to make use of svi, but on layer three etherchannel you negate the command with no switchport ?

Regards, 

[kubn2 · Accepted solution]

Hello,

Multilayer switch as the name implies can have Layer 3 as well as Layer 2 ports. In your example your multilayer switch need to have switchports for this etherchannel because the other side of the tunnel is Layer 2 channel so you need to adjust to that.

P.S Etherchannel need to be a trunk link.

[omz · Accepted solution]

int vlan 10 and int vlan 20 are the SVIs on the L3 switch

port-channel is L2 trunk that carry the vlan traffic 

[Melvinb1981]

you missed one command on this. 

you need to set ip routing on the layer 3 switch else you dont reach the other pc. you can ping the gateways however

[omz]

:) absolutely .. you need it
I did use it on packet tracer .. didn't include in config coz thought that's sort of pre-requisite to make switch L3. But yes you right 100%