Configuring L3 ether-channel is almost the same as L2 the only exception is to add L3 protocol . To configure L3 on L2 switch you need to enable the port be a routed port otherwise you will not be able to add the ip address command to the interface .
Switch(config)#inter port-channel 12
Switch(config-if)#no switchport --> This command changes the interface from L2 to L3
Switch(config-if)#ip address 12.0.0.1 255.255.255.0
Switch(config-if)#no shut
Switch(config-if)#end
Switch#
Switch#ping 12.0.0.2--> the other ether-channel on SW2
Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/5 ms
--------------------------------------------------------------------------
Switch#sho etherchannel
Channel-group listing:
----------------------
Group: 12
----------
Group state = L2
Ports: 2 Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol: LACP
Switch#sho etherchannel summ
Switch#sho etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------
12 Po12(SU) LACP Fa0/1(P) Fa0/2(P)
--------------------------------------------------------------------------
Switch#sho interfaces etherchannel
FastEthernet0/1:
Port state = 1
Channel group = 12 Mode = Active Gcchange = -
Port-channel = Po12 GC = - Pseudo port-channel = Po12
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/1 SA down 32768 0x0 0x0 0x1
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/1 SA 32768 00E0.B080.DED2 0x0 0x0 0x1
Age of the port in the current state: 00d:02h:10m:50s
FastEthernet0/2:
Port state = 1
Channel group = 12 Mode = Active Gcchange = -
Port-channel = Po12 GC = - Pseudo port-channel = Po12
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/2 SA down 32768 0x0 0x0 0x2
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/2 SA 32768 00E0.B080.DED2 0x0 0x0 0x2
Age of the port in the current state: 00d:02h:10m:50s
----
Port-channel12:Port-channel12 (Primary aggregator)
Age of the Port-channel = 00d:00h:30m:58s
Logical slot/port = 2/12 Number of ports = 2
HotStandBy port = null
Port state =
Protocol = 1
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:02h:10m:50s Fa0/2
Switch(config)#inter port-channel 12
Switch(config-if)#no switchport --> This command changes the interface from L2 to L3
Switch(config-if)#ip address 12.0.0.1 255.255.255.0
Switch(config-if)#no shut
Switch(config-if)#end
Switch#
Switch#ping 12.0.0.2--> the other ether-channel on SW2
Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/5 ms
--------------------------------------------------------------------------
Switch#sho etherchannel
Channel-group listing:
----------------------
Group: 12
----------
Group state = L2
Ports: 2 Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol: LACP
Switch#sho etherchannel summ
Switch#sho etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------
12 Po12(SU) LACP Fa0/1(P) Fa0/2(P)
--------------------------------------------------------------------------
Switch#sho interfaces etherchannel
FastEthernet0/1:
Port state = 1
Channel group = 12 Mode = Active Gcchange = -
Port-channel = Po12 GC = - Pseudo port-channel = Po12
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/1 SA down 32768 0x0 0x0 0x1
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/1 SA 32768 00E0.B080.DED2 0x0 0x0 0x1
Age of the port in the current state: 00d:02h:10m:50s
FastEthernet0/2:
Port state = 1
Channel group = 12 Mode = Active Gcchange = -
Port-channel = Po12 GC = - Pseudo port-channel = Po12
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/2 SA down 32768 0x0 0x0 0x2
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/2 SA 32768 00E0.B080.DED2 0x0 0x0 0x2
Age of the port in the current state: 00d:02h:10m:50s
----
Port-channel12:Port-channel12 (Primary aggregator)
Age of the Port-channel = 00d:00h:30m:58s
Logical slot/port = 2/12 Number of ports = 2
HotStandBy port = null
Port state =
Protocol = 1
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:02h:10m:50s Fa0/2
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