Configure, Verify and Troubleshoot (Layer 2/Layer 3) EtherChannel
EtherChannel is a port link aggregation technology in which many physical port links are classified into one logical link. Has the capability to rush many Ethernet lines into one virtual line on Cisco bias. It’s used to give high-speed links and redundancy. A maximum of 8 links can be added up to form a single logical link. Generally use this to increase the bandwidth of Subcaste 2 technologies.
To learn more about EtherChannel and its configuration refer to EtherChannel in the Computer Network article.
Steps to Configure and Verify Layer3 EtherChannel:
Step 1: First open the cisco packet tracer desktop and create a network topology of the devices given below:
S.NO | Device | Model Name |
---|---|---|
1. | Switch | 3650-24PC |
2. | Cable | Automatic connecting cable |
Step 2: Configure Switches with Etherchannel and IP addresses.
S.NO | device | IP Address | Subnet Mask |
---|---|---|---|
1. | 3650-24PS Multilayer switch0 | 192.168.10.1 | 255.255.255.0 |
2. | 3650-24PS Multilayer switch1 | 192.168.10.2 | 255.255.255.0 |
- Click on multilayer switch0 and go to CLI.
- Then, type these commands to configure EtherChannel
Switch>en Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int range Gig1/0/1-2 Switch(config-if-range)#no switchport Switch(config-if-range)# %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to up Switch(config-if-range)#int port-channel 1 Switch(config-if)#int port-channel 1 Switch(config-if)#no switchport Switch(config-if)#exit Switch(config)#int range Gig1/0/1-2 Switch(config-if-range)#channel-group 1 mode ? active Enable LACP unconditionally auto Enable PAgP only if a PAgP device is detected desirable Enable PAgP unconditionally on Enable Etherchannel only passive Enable LACP only if a LACP device is detected Switch(config-if-range)#channel-group 1 mode on Switch(config-if-range)# %LINK-5-CHANGED: Interface Port-channel1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up Switch(config-if-range)#no switchport Switch(config-if-range)#exit Switch(config)#interface port-channel 1 Switch(config-if)#ip add 192.168.10.1 255.255.255.0 Switch(config-if)#
Step 3: Click on switch1 and follow the same procedure as switch0.
Switch>en Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int range Gig1/0/1-2 Switch(config-if-range)#no switchport Switch(config-if-range)# %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to up Switch(config-if-range)#exit Switch(config)#interface port-channel 1 Switch(config-if)#no switchport Switch(config-if)#exit Switch(config)#int range Gig1/0/1-2 Switch(config-if-range)#channel-group 1 mode on Switch(config-if-range)# %LINK-5-CHANGED: Interface Port-channel1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up Switch(config-if-range)#exit Switch(config)#in port-channel 1 Switch(config-if)#ip add 192.168.10.2 255.255.255.0 Switch(config-if)#
Step 4: Verify the EtherChannel summary and connection.
show etherchannel summary
Step 5: Checking the IP address of Port-channel 1 in multilayer switch0:
- Checking the IP address of Port-channel 1 in multilayer switch0:
- The simulation of the experiment is given below:
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