09-30-2016 06:06 AM - edited 03-08-2019 07:38 AM
can i configure a layer 2 switch with a layer 2 etherchannel and on the other side a layer 3 switch with a layer 3 etherchannel? can this work?
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09-30-2016 06:36 AM
No it needs to match both sides c, cant be ip based on l3 and not on l2,so it has to be layer 2 each side only
just bundled trunk ports really like below , far side would be channel-group active if using lacp
interface Port-channel10
description xxxxxxxxxx
switchport trunk allowed vlan 1-1005
switchport mode trunk
interface GigabitEthernet1/0/3
switchport trunk allowed vlan 1-1005
switchport mode trunk
channel-group 10 mode desirable
interface GigabitEthernet1/0/4
switchport trunk allowed vlan 1-1005
switchport mode trunk
channel-group 10 mode desirable
09-30-2016 06:36 AM
Nope, fraid not.
You can have a L2 both sides.
You can't have a L2 Trunk one side and a L3 interface the other side.
Just because its a L3 doesn't mean it only does L3 functions, you can happily have a L2 etherchannel between a L2 switch and a L3 switch.
09-30-2016 06:36 AM
No it needs to match both sides c, cant be ip based on l3 and not on l2,so it has to be layer 2 each side only
just bundled trunk ports really like below , far side would be channel-group active if using lacp
interface Port-channel10
description xxxxxxxxxx
switchport trunk allowed vlan 1-1005
switchport mode trunk
interface GigabitEthernet1/0/3
switchport trunk allowed vlan 1-1005
switchport mode trunk
channel-group 10 mode desirable
interface GigabitEthernet1/0/4
switchport trunk allowed vlan 1-1005
switchport mode trunk
channel-group 10 mode desirable
09-30-2016 06:36 AM
Nope, fraid not.
You can have a L2 both sides.
You can't have a L2 Trunk one side and a L3 interface the other side.
Just because its a L3 doesn't mean it only does L3 functions, you can happily have a L2 etherchannel between a L2 switch and a L3 switch.
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