how to verify etherchannel configuration

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Verify the configuration with a "show . Use this procedure to configure an EtherChannel. LACP Initial Configuration Check. 7) After configuring the EtherChannel, verify that all interfaces are in the up/up state. EtherChannels can be used to enhance the bandwidth between data centre and wiring closets, you can also apply it anywhere in network where the bottlenecks can possibly occur. Some VIO servers may have multiple Shared Ethernet Adapters (SEAs). Basic Layer 2 EtherChannel Configuration What is EtherChannel / Link Aggregation - simply put it can provide fault-tolerant high-speed links between Switches, Routers, and Servers, by combing physical links together to represent a logical link, a maximum of 8 links can be combined at one time although 16 links are possible, however 8 of which . It will also show the traffic load balancing method based on its type, non-IP, IPv4, or IPv6. The interface will have the same configuration that it had before it joined the EtherChannel. Mode that forces the LAN port to channel unconditionally. Configuring EtherChannel with LACP requires the following three steps: Step 1. If there are problems, you will also need to be able to troubleshoot and fix them. Verify EtherChannel is Operational The output of the show etherchannel summary command indicates that the EtherChannel is down. Use the "ping" command to test connectivity. set the protocol to LACP. Select the primary Ethernet adapters that you want on your EtherChannel and press Enter. Step 2 - After identifying which port channel is down. Step 2: Configure and verify an EtherChannel using PAgP between D1 and A1. Actively attempts to form a channel. In the on mode, a usable EtherChannel exists only when a LAN port group in the on mode is connected to another LAN port group in the on mode. Click Controller. Watch an updated 2021 demo here: https://youtu.be/E4o4aSQJx8oAre you looking for Cisco training? The src-mac is a default setting. Connect 2 PCs to the switch and send traffic to a destination and use "test etherchannel load-balance" command to see what device (PC) is using which link. Be sure to subscribe and check out the rest of the series for the rest of the labs!Here is a link to the first v. . The reader must observe the following prerequisites: Have a good understanding of basic networking concepts. [] - Configure interface Port-Channel1 on both SW1 and SW1 to trunk then verify that the changes you've made on the Port-Channel interface have propagated to the bundled links; Fa0/10, Fa0/11 and Fa0/12. It is best for the reader to know how to work with the Cisco packet . Firstly, show etherchannel summary can be used to get basic information, such as a list of port channels, the physical links they contain, link up/down status, and protocol type. Valid values are: Lab Instruction. Figure 28-1 Typical EtherChannel Configuration. By configuring EtherChannel, we are bundling multiple physical connections between two or more Cisco switches into one logically link. LACP Configuration The first switch SW1 will be Active Mode and SW2 will be in Passive Mode. DG must have the proper routes to route such packets. (This command will create static ehterchannel on your switch. Verify and Troubleshoot EtherChannel Verify EtherChannel As always, when you configure devices in your network, you must verify your configuration. But we can see that it is up-up. Now I am going to configure Ether channel and for this we need atleast two ethernet ports. In this tutorial we will Learn how to configure verify and troubleshoot LACP (Link Aggregation or Ether Channel).Actually Link Aggregation or Ether Channel is a technology very similar to PAgP which allows two or more than two physical ports to combine and provide a new third single logical port which results in high availability and increased bandwidth. To configure EtherChannel VLAN trunks on the switch, perform these tasks: Step 1 Configure EtherChannel Configure multiple ports between switches as a single virtual link. Part 1: Configure Basic Switch Settings. If you still do not see the link then the interface is not connected to the switch. To successfully configure etherchannel bonding between two Cisco switches using LACP as the aggregation protocol, the following configuration commands are required: In this demonstration, we are going to establish an etherchannel bonding between switches 1 and 2, using three fast ethernet ports on both switches. First of all, we must create logical interface with "port-channel" command and assign it an ip address. If a configuration was changed in the logical interface of the EtherChannel it does not mean that the change will apply to all the member ports of the . Configure the lacp protocol to be used in this channel. We can verify with the "show etherchannel <port-channel number> port-channel" or "show etherchannel summary" command. In this tutorial we will Learn how to configure verify and troubleshoot LACP (Link Aggregation or Ether Channel).Actually Link Aggregation or Ether Channel is a technology very similar to PAgP which allows two or more than two physical ports to combine and provide a new third single logical port which results in high availability and increased bandwidth. Now run show command to display the etherchannel configurations on Switch-B and Switch-A. For additional tasks that can be performed after the EtherChannel is configured, see Listing EtherChannels or Link Aggregations. LACP Configuration. Assign each switch a hostname according to the topology diagram. This is the base network that we'll start with. Assign each switch a hostname according to the topology diagram. We need to go a step further and simply take those, up to 8 x 1G Interfaces, and configure link aggregation - EtherChannel. Don't forget to set the native VLAN on the new port channel interface. . Part 2. Select your new EtherChannel interface from the list. Open configuration window b. Verify the trunks are still working. a. Configure the ports interconnecting D1 and A1 as static trunk ports with the switchport nonegotiate command (the startup configuration has the commands to make them a trunk). Part 4: Implement and Verify an EtherChannel between the switches. Verify and Troubleshoot EtherChannel Verify EtherChannel As always, when you configure devices in your network, you must verify your configuration. An example of this configuration is: interface range GigabitEthernet0/1-4 description Member Port channel-group 1 mode active no shutdown. To add a static LAG member: 1 Open the LAG Membership page.. 2 Click in the LAG row under the specific port number column to toggle the port to the desired LAG number or type the desired number in . How to Configure and verify EtherChannels Ether channels are designed to provide the fault tolerant high capacity links between servers, routers and switches. The third method to verify your EtherChannel is to use the show interfaces command. Inconsistent trunk modes on . By default, a port is set to negotiate the encapsulation and to be in the dynamic and desirable mode. Step 2. Let's take a closer look: Here's a nice command to verify your etherchannel. Before beginning the link aggregation between switches, verify the existing configuration of the ports that connect the switches to ensure that the ports will successfully join the EtherChannels. Try to bring up the interface using "ifconfig up". Etherchannel technique is known as NIC Teaming in Windows and Ethernet Bridging in Linux. Now type command channel-group 1 mode on. If there are problems, you will also need to be able to troubleshoot and fix them. A good understanding on how to configure switches using packet tracer. That is all the configuration for the EtherChannel to work well on both switches. Because ports configured in the on mode do not negotiate, there is no negotiation traffic between the ports. 8) It is possible to configure an EtherChannel as static, or for it to use either PAgP or LACP to negotiate the EtherChannel connection. One place to go to verify your EtherChannel bundle is on the switch. create a Channel Group and specify the LACP mode. One side should at least be in Active Mode. There are a number of commands to verify an EtherChannel configuration. We're creating a logical interface out of thin air, and so we can't see it as a regular interface. Adding a Port to a Static LAG. To check whether ehterchannel is set up correctly, use the show etherchannel . On the two switches, enter privileged EXEC mode. Process to Configure and verify EtherChannel (LACP) LACP link aggregation control protocol defined in 802.3ad. spanning-tree etherchannel guard misconfig. Configure IP over the newly-created EtherChannel device by typing smitty chinet at the command line. Exam: Cisco 200-301 . You cannot configure the on mode with an EtherChannel protocol. Same access VLAN on access ports. SW1 (config-if) # no switchport. HTH View solution in original post 5 Helpful Reply 9 REPLIES SJ K Contributor For Gigabit EtherChannel, you can configure up to 8 Gbps (8 ports of 1 Gbps), depending on the number of supported Gigabit . The EtherChannel provides full-duplex bandwidth of up to 800 Mbps between your switch and another switch or host for Fast EtherChannel on a switch with 24 Fast Ethernet ports. Same configuration you need to do on other switch. To display the LAG Membership page, click Switching / Link Aggregation / LAG Membership in the navigation panel.. Let us use the same topology for the configuration of EtherChannel. Fill in all of the required fields and press Enter. specify which VLAN's are allowed over the trunk. View Port Channel Configuration Step 3: Correct the Misconfiguration Step 4. Hi, Configuration : Three switches all with two links configured to be part of etherchannel. Let's examine the 3 methods and their differences. The command channel-group 1 mode desirable means interface Fa0/1 and Fa0/2 will be member of logical interface port-channel 1 and ports Fa0/1 . Login to the WLC. Before assigning an ip address, it is important to change this port to a Layer 3 port by "no switchport" command. Cisco switch port configuration using Port-channel interfaces was also included along side with an explanation on why Etherchannel must be used as WLC LAG does not support LACP or PAgP. Mode that forces the LAN port to channel unconditionally. We can use the 'show etherchannel <channel-group number> port-channel' command to verify link aggregation and our port channel status: Flags: D - down P - in port-channel. It is most important that the physical . PAgP. a. Le but est d' augmenter la vitesse et la tolrance aux pannes entre les commutateurs, les routeurs et . Switch (config)#ip default-gateway <ip address>. Answer. Then, enter global configuration mode and issue the following command. The determination of how an EtherChannel is setup is the value of the channel-group number mode command. In the on mode, a usable EtherChannel exists only when a LAN port group in the on mode is connected to another LAN port group in the on mode. An EtherChannel consists of individual Gigabit Ethernet links bundled into a single logical link as shown in Figure 39-1. If one or more are in the PRIMARY state instead of the BACKUP state, the network communications for the SEA in PRIMARY state may be affected temporarily during a system update or reboot. On l'appelle aussi bonding, LAG, etherchannel, ou encore portchannel. Pings from Switch1 to Switch2 Switch1#ping 192.168.1.2 Type escape sequence to abort. Valid values are: active LACP is enabled unconditionally. Set "LAG Mode on next reboot" to "enabled". To check the EtherChannel load balancing algorithm, we can use the command 'show etherchannel load-balance'. Cisco2960S (config)#int range gi1//47-48 Cisco2960S (config-if-range)#channel . The state of the SEA can be easily determined with these steps: 1. Enter the show etherchannel load-balance command to verify which information EtherChannel uses to load balance traffic: Switch1# show etherchannel load-balance EtherChannel Load-Balancing Configuration: src-dst-ip EtherChannel Load-Balancing Addresses Used Per-Protocol: Non-IP: Source XOR Destination MAC address IPv4: Source XOR Destination IP .