The physical switch ports running lacp protocol can be either in active or passive mode. The router will not let you set up different encapsulations on the subinterface. Etherchannel on cisco ios catalyst switch in this tutorial we. This document provides a sample configuration for fast etherchannel fec and ieee 802. Lets start the new year with understanding etherchannel which is having more than one link connected to a server, switch, or router and treating it like one logical link. The port channel is configured in portchannel configuration mode. How to configure and verify etherchannels examcollection. I need a clear example to have two one gig connections from a 3750 switch to an asr1006 to form a two gig etherchannel. Etherchannel load balancing can use mac addresses, ip addresses, or layer 4 port numbers with a policy feature card 2 pfc2 and either source mode, destination mode, or both. Layer3 etherchannel configuration now in our last topic, we configured a layer2 etherchannel, and that might be very appropriate, if we had end to end vlans in the enterprise, another words, we got vlans in building 1, vlans in building 2 and vlans in building 3, and all the same.
Etherchannel configuration overview you can configure etherchannels manually, use the port aggregation control protocol pagp or, with cisco ios release 12. Skills covered in this course network administration it cisco. The industry standard name is link aggregation ieee 802. Perform these steps to configure the etherchannel feature on cisco 1900, 2900 and 3900 series isrs. So they should all match in the end, but the configuration is done at the portchannel mode. Lacp allows cisco switches to manage ethernet channels between switches that conform to the 802. Etherchannel configuration guide ios xe release 3s cisco asr. Etherchannel configuration with example icnd2 200105. Jul 09, 2007 etherchannel load balancing can use mac addresses, ip addresses, or layer 4 port numbers with a policy feature card 2 pfc2 and either source mode, destination mode, or both. Feb 15, 2016 etherchannel guard is a way of finding out if one end of the etherchannel is not configured properly.
Lacp works in a similar way to pagp, only its multivendor or standard channeling protocol. Etherchannel manual configuration there are two methods of configuring an etherchannel. Etherchannel has been a part of the cisco ios for many years, so you should find that all your switches support it with proper configuration. Cisco devices that are running catos, one single switch mode can be configured to run pagp and lacp modes. In this post, i will show steps to configure pagp etherchannel in cisco ios switch. The etherchannel protocols allow ports with similar characteristics to form an etherchannel through dynamic negotiation with connected network devices. Because all that information you type in portchannel configuration mode will be automatically copied to those main physical interfaces. Configuring etherchannels and linkstate tracking cisco. Etherchannel is the port link aggregation technology invented by a company named kalpana.
Etherchannel supports fast, gigabit, and 10 gigabit ethernet ports. On lappelle aussi bonding, lag, etherchannel, ou encore portchannel. This could be that there are some parameters not matching up such as duplex and speed. Etherchannel is a technology that lets you bundle multiple physical links into a single logical link. And by layer2 means that the logical port we going to create, its going to appear like, its a switch port. It is not constrained by the restriction of per module setting. About etherchannel configure with fru 00e1854 aix forum. Nov 06, 2010 there are two more things i would like to cover in this cisco fundamentals series that relates to switches. One place to go to verify your etherchannel bundle is on the switch. Cisco s implementation of port aggregation is called etherchannel.
A port channel is the logical representation of the etherchannel on the switch. The configuration that you apply to the lan ports affects only the lan port where you apply the configuration. Example associating a channel group with a port channel 20. You can configure it manually or use protocols like pagp or lacp. Do not be afraid to enable it on a pair of ports and try it.
Jul 29, 2018 configuring etherchannel on a cisco switch. Oct 16, 2011 in this video in hindi jagvinder thind shows how to configure etherchannel using pagp port aggregation protocol in hindi. Or it could be that one side is a trunk and the other isnt. Cisco has come up with their own proprietary version call. It allows grouping of several physical ethernet links to create one logical ethernet link for the purpose of providing faulttolerance and highspeed links between switches, routers and servers.
The basic process for configuring your etherchannel interfaces is as follows. Become acquainted with cisco network devices and code listings. Layer 3 etherchannel on cisco ios switch in a previous tutorial i explained how etherchannels work and how to configure them, but i didnt write about layer 3 etherchannels before. Configure etherchannel on cisco asa to increase bandwidth and achieve ha. Configuration changes to a port channel interface propagate to all ethernet interfaces in the. Configure etherchannel on cisco asa to increase bandwidth and. You cannot have a switch stack containing a mix of catalyst 3850 and catalyst 3650 switches. Oct 12, 2015 if you are using pagp protocol then you must use cisco switches because pagp is cisco proprietary protocol. If a nontrunking layer 2 etherchannel includes member ports that that are not capable of isl trunk encapsulation, the. We can do layer2 things with it, for example, we gonna set this port up to be a trunk port, that would be a great fit to carry traffic for multiple vlans, like we have the trunk and, what we wanna to do specifically is, we want to setup an etherchannel within. In 2008 free ccna workbook originally started as a sharable pdf but quickly evolved into the largest ccna training lab website on the net.
Etherchannel technology was invented by kalpana in the early 1990s. Cisco ccnp etherchannel pagp configuration in hindi. Layer 2 etherchannel when youre designing your network one of the factors you always consider is resiliency. This is the output of the show etherchannel summary on the cisco 6500. Etherchannel best cisco ccna ccnp and linuxcentos pdf notes. Manual channel configuration without using any form of. In a conventional network where stp blocks one link to avoid switching loops, etherchannel forces stp to see both paths or bundled as one logical link while avoiding switching loops. Etherchannel provides faulttolerant highspeed links between switches. Understanding layer 3 etherchannel support on the cisco isr. Configure etherchannel on cisco asa to increase bandwidth. In production environment, you either use lacp or pagp. Now, to finish configuration i need to specify loadbalancing method on both ends.
Etherchannel feature configuration guidelines and restrictions. Jul 30, 20 etherchannel is the cisco term for the technology that enables the bonding of up to eight physical ethernet links into a single logical link. This company was acquired by cisco systems in 1994. Etherchannel configuration between the switch module. Etherchannel configuration cisco pdf cisco systems network. New ccna routing and switching 200125 ccna security and ccna voice best ever ccnp route300101 and 642902 and switch and also best rhcerhcsa linux notes for rhel6 and rhel 7 and also ubuntu and pfsense firewall pdf notes. Etherchannel is a port link aggregation technology or portchannel architecture used primarily on cisco switches. In this lab, you will configure port aggregation protocol pagp, a cisco etherchannel protocol, and link aggregation control protocol lacp, an ieee 802. If you are using pagp protocol then you must use cisco switches because pagp is cisco proprietary protocol. Ciscos implementation of port aggregation is called etherchannel.
Layer 23 configuration guide, cisco ios xe release 3se catalyst. Enough of the terminology and reasons for using the technology. This connection may be via ssh, telnet, or the console port. Etherchannel configuration on cisco switch learn linux ccna. Etherchannel allows us to group several practically eight physical ethernet links on a cisco switch into one logical link. Etherchannel configuration on cisco switch learn linux. Pagp cisco proprietary enables the catalyst switches to learn the capabilities of each interface assigned to an etherchannel group and activate interfaces of similar configuration to form a portchannel. To create and configure a cisco network, you need to know about routers and switches to develop and manage secure cisco systems. The mode you select applies to all etherchannels that you configure on the switch. Layer 2 etherchannel configuration best cisco ccna ccnp. Troubleshooting etherchannel most of the issues with etherchannels link aggregation are because of misconfiguration.
Packet tracer configuring etherchannel instructions. Connect to the commandline interface cli your switch. The etherchannel provides fullduplex bandwidth up to 800 mbps fast etherchannel or 8 gbps gigabit etherchannel between your switch and another switch or host. Keep in mind that the configuration of all physical interfaces has to match. E, e14, e and e14 of each of the cisco nexus are attached to gi219, gi220, gi221 and gi222 of the cisco 6500 respectively theres a network diagram attached. In this video in hindi jagvinder thind shows how to configure etherchannel using pagp port aggregation protocol in hindi. Moving to the top of the configuration block, the interfaces gigabitethernet 02 and 03 are placed into channelgroup.
If the ports are operating in full duplex, the maximum theoretical bandwidth supported is as follows. Cisco 3900 series, cisco 2900 series, and cisco 1900 series integrated services routers generation 2 software configuration guide chapter configuring etherchannel restrictions and guidelines for etherchannel feature configuring etherchannel. Oct 12, 2015 there are three different methods to configure etherchannel in cisco switch. By configuring etherchannel, we are bundling multiple physical connections between two or more cisco switches into one logically link. Ether channels are designed to provide the fault tolerant high capacity links between servers, routers and switches. Depending on the platform and for lacp etherchannel in case of 3850s, you can bundle up to 16 interfaces of the same type in the etherchannel but only up to eight ports can be active at one time. If you run an entstat d entx, where entx is the number for the etherchannel adapter, it will eventually show you this section in the output. In a conventional network where stp blocks one link to avoid switching loops, etherchannel forces stp to see both paths or bundled as one logical link while avoiding. I want to increase bandwidth on trunk between two for now switches specifically 3750 and 6500. After you configure an etherchannel, the configuration that you apply to the port channel interface affects the etherchannel. Etherchannel guard is a way of finding out if one end of the etherchannel is not configured properly. The most important cli commands are included that will be helpful for most configurations.
There are three different methods to configure etherchannel in cisco switch. Part 1 defines what etherchannel is and cases for using it in your networks from a nontechnical perspective. In this post, i will show steps to configure lacp etherchannel in cisco ios switch. You would need dot1q trunk mode if youre tagging multiple vlans across the links which is common for esxi hosts with multiple networks on the same nics.
Cisco switch etherchannel configuration lacp pagp in this article we will describe how to configure both lacp and pagp etherchannels on cisco switches. This chapter describes how to configure etherchannels on the catalyst 3750 switch. Feb 15, 2020 in this lab, you will configure port aggregation protocol pagp, a cisco etherchannel protocol, and link aggregation control protocol lacp, an ieee 802. Etherchannel is the cisco term for the technology that enables the bonding of up to eight physical ethernet links into a single logical link. The switches used with ccna handson labs are cisco catalyst 2960s with cisco ios release 15. Etherchannel is enabled by the standardised vendor independent lacp protocol which creates one virtual link out of multiple physical links. A maximum of 8 active ports are supported in a single etherchannel. Part 2 dives into the actual details of the protocols and how to configure them on your devices. Configuring an etherchannel link free ccna workbook. This chapter describes how to configure the backplane interface portchannel48, which provides communication between the host cgr 2010 router and the.
Jan 04, 2012 basic understanding of etherchannel posted on january 4, 2012 january 2, 2012 by ryan lets start the new year with understanding etherchannel which is having more than one link connected to a server, switch, or router and treating it like one logical link. Etherchannel configuration pdf network switch internet standards. Layer3 etherchannel configuration best cisco ccna ccnp and. The purpose of this document is to explain cisco integrated services router isr specific. This is how a standard mode cisco etherchannel will show up. This is great for stp redundancy because stp will only need to reconverge if all links within the. Cisco ios router configuration commands cheat sheet pdf. The website was founded in late 2009 with the goal of providing free cisco ccna.
Layer3 etherchannel configuration best cisco ccna ccnp. Chapter 7 configuring etherchannel on a cisco switch. Download this cisco router configuration commands cheat sheet in pdf format at the end of this post herethe most important cli commands are included that will help you in the field. I need a clear example to have two one gig connections from a 3750 switch. Sample configuration of etherchannel link aggregation control protocol lacp with esxiesx and ciscoh for lacp deployments only with 5. Depending on the model and cisco ios version, the commands available and output produced might vary from what is shown in the labs. This chapter describes how to configure etherchannels on layer 3 ports on cisco 1900, 2900, and 3900. Layer 2 etherchannel configuration best cisco ccna ccnp and. Depending on the model and cisco ios version, the commands available and output. When there is a misconfiguration found, the switch. When setting up an etherchannel connection, remember the following points. The channel protocol lacp is not absolutely needed it knows when you add channelgroup x mode active that it is lacp. Cisco aggregation switch etherchannel load balancing. Etherchannel configuration pdf free download as pdf file.
Use the option that provides the greatest variety in your configuration. 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. This is a faulttolerant technique that is becoming a common setup in highly available, core devices. For layer3 etherchannel, configure the logical portchannel interface first and then assign it to layer3 ports. Cisco devices running ios support single port configuration for lacp.