Below are the configurations of both the cisco switch 6500 in this case and peer vswitch in esx to support link aggregation control protocol 802. Lacp works in a similar way to pagp, only its multivendor or standard channeling protocol. If the ports are operating in full duplex, the maximum theoretical bandwidth supported is as follows. The channel protocol lacp is not absolutely needed it knows when you add channelgroup x mode active that it is lacp.
Etherchannel configuration on cisco switch learn linux. Nov 26, 2017 etherchannel is a feature used to group multiple parallel links into one single logical interface. Etherchannel allows us to group several practically eight physical ethernet links on a cisco switch into one logical link. Verify that interfaces fa010, fa011 and fa012 on sw1 formed a pagp etherchannel correctly.
Layer 2 etherchannel configuration now the we talked about the. Etherchannel configuration on cisco switch learn linux ccna. Etherchannel can be configured on many different switch platforms such as the 65006000, 55005000, 45004000. Cisco ccna ccnp and linux pdf notes, cisco 200125, cisco ccna 200120, ccnp switch 300115, ccnp route, linux rhel6,rhel7, centos. Manual etherchannel configuration in cisco switches using. Pagp is a cisco proprietary protocol that you can only run on cisco switches and on switches that are licensed vendors to support pagp. It also seen as one link by spanning tree algorithms.
The website was founded in late 2009 with the goal of providing free cisco ccna. 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. Now, to finish configuration i need to specify loadbalancing method on both ends. By configuring etherchannel, we are bundling multiple physical connections between two or more cisco switches into one logically link. When there is a misconfiguration found, the switch will place the interfaces in errordisabled. Chapter 2 the basics of device configuration 18 chapter 3 the basics of device interfaces 46. If the remote switch port is configured with desirable then only it. 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. For the channel to be formed correctly without stp loops etc. This company was acquired by cisco systems in 1994. This could be that there are some parameters not matching up such as duplex and speed. Because all that information you type in portchannel configuration mode will be automatically copied to those main physical interfaces. Feb 15, 2016 etherchannel guard is a way of finding out if one end of the etherchannel is not configured properly. Pagp and lacp configuration has to be done on both switches configuring etherchannel to view.
This chapter describes how to configure etherchannels on layer 3 ports on cisco 1900, 2900, and 3900. Part of cisco networking allinone for dummies cheat sheet. 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. This is the output of the show etherchannel summary on the cisco 6500. Etherchannel is the cisco term for the technology that enables the bonding of up to eight physical ethernet links into a single logical link. Etherchannel provides faulttolerant highspeed links between switches, routers, and servers. The best command to use is show etherchannel detail. So they should all match in the end, but the configuration is done at the portchannel mode. Sets the interface to respond to pagp negotiation packets, but the interface will start negotiations on its own desireable. I need to create a 4 link etherchannel between the cisco stack and the 2x hp switches. The physical switch ports in pagp can be configured in one of two available modes in pagp. Etherchannel best cisco ccna ccnp and linuxcentos pdf notes.
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. This chapter describes how to configure the backplane interface portchannel48, which provides communication between the host cgr 2010 router and the. Manually dynamically, using an aggregation protocol to manually configure two ports to join an etherchannel. When setting up an etherchannel connection, remember the following points. 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. Cisco devices running ios support single port configuration for lacp. Interfaces in passive mode will only respond to lacp requests. An etherchannel is a link aggregation technology whereby two switches are connected together with multiple interfaces which are bundled together to form a single logical interface. The hp switches have a 10gbs backpane link between them.
Chapter 19 configuring etherchannel etherchannel configuration guidelines and restrictions lacp tries to configure the maximum number of compatible ports in an etherchannel up to the maximum allowed by the hardware eight ports. Etherchannel allows multiple physical ethernet links to be combined into one logical channel. Creating an etherchannel between hp procurve and cisco. Note that ether channel technology is general allows for multilink aggregation, redundancy and load balancing. If a port cannot be actively included in a channel, it is not included automatically if a channelled port fails. Configuring an etherchannel link free ccna workbook. Etherchannel configuration guide ios xe release 3s cisco asr. Cisco press 201 west 103rd street indianapolis, in 46290 usa cisco router con. Layer3 etherchannel configuration best cisco ccna ccnp. If you are going to create an etherchannel you need to make sure that all ports have the same configuration. Etherchannel is a feature used to group multiple parallel links into one single logical interface. Part 2 dives into the actual details of the protocols and how to configure them on your devices. 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. Forces the connection to bring all links up without using a.
I dont know why they have that separate command, maybe someone else can chime in why thats even there. 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. 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. Lacp is a link aggregation protocol that is defined by ieee 802. The switch and stp will treat the bundled ports as a single interface, eliminating the possibility of a switching loop. Do not be afraid to enable it on a pair of ports and try it. If the remote switch port is configured with desirable then only it will form pagp etherchannel. You can use it to increase the bandwidth between the wiring closets and the data center, and you can deploy it anywhere in the network where bottlenecks are likely to occur. This chapter describes how to use the commandline interface cli to configure etherchannel on the. Part 1 defines what etherchannel is and cases for using it in your networks from a nontechnical perspective. This gives you a lot of information but im particularly interested in seeing if lacp is configured for passive or active mode.
Ethernetchannel is a oneone relationship that connects only two devices. Sample configuration of etherchannel link aggregation control protocol lacp with esxiesx and ciscoh for lacp deployments only with 5. Jan 19, 2018 to successfully configure etherchannel bonding between two cisco switches using lacp as the aggregation protocol, the following configuration commands are required. Cisco ccnp etherchannel pagp configuration in hindi. Keep in mind that pagp can only be used between cisco devices while lacp is a ieee standard, you can use it to form etherchannels between different vendors. Etherchannel is the port link aggregation technology invented by a company named kalpana. Manual channel configuration without using any form of negotiation. Pagp cisco proprietary lacp ieee standard these protocols can dynamically configure an etherchannel. 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. Catalyst 4500 series switch layer 2 or layer 3 interfaces. Software configuration guide, cisco ios xe denali 16.
In this lab, you will configure port aggregation protocol pagp, a cisco etherchannel protocol, and link aggregation control protocol lacp, an ieee 802. This is a faulttolerant technique that is becoming a common setup in highly available, core devices. Increase network bandwidth using ciscos etherchannel. Why you should ditch lastpass, 1password, etc with tuxdigital part 1 of 2 duration. This is great for stp redundancy because stp will only need to reconverge if all links within the. Cisco has come up with their own proprietary version call. To set etherchannel to use with of the protocols you will configure it to support one of the following modes. The concept manual etherchannel configuration is arrived from cisco as a lan switchtoswitch technique, which is port link aggregation technology dispenses faulttolerant speed links between the servers, switches, and routers. The configuration that you apply to the lan ports affects only the lan port where you apply the configuration. 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. Dont be afraid to use etherchannel on your cisco network. After you configure an etherchannel, the configuration that you apply to the port channel interface affects the etherchannel.
Or it could be that one side is a trunk and the other isnt. Layer 2 etherchannel configuration best cisco ccna ccnp. 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. It is not constrained by the restriction of per module setting. One place to go to verify your etherchannel bundle is on the switch. Oct 12, 2015 configure pagp etherchannel in cisco ios switch. In this demonstration, we are going to establish an etherchannel bonding between switches 1 and 2, using three fast ethernet ports on both switches. I want to increase bandwidth on trunk between two for now switches specifically 3750 and 6500. Cisco switch etherchannel configuration lacp pagp in this article we will describe how to configure both lacp and pagp etherchannels on cisco switches.
The messages sent by pagp are always sent to the known multicast addresses 0ccccccc and 0x0104 2 protocol code. Layer3 etherchannel configuration best cisco ccna ccnp and. In this way you can configure lacp etherchannel in cisco switch. Ciscos implementation of port aggregation is called etherchannel. Hi, ive got a 2x cisco 3750 switches in a stack and 2x hp procurve 2910al48g. Etherchannel is a port link aggregation technology or portchannel architecture used primarily on cisco switches. How to configure and verify etherchannels examcollection. Cisco devices that are running catos, one single switch mode can be configured to run pagp and lacp modes. Sets the interface to actively attempt to negotiate a pagp connection on. Pagp is a ciscoproprietary protocol that you can only run on cisco switches and on switches that are licensed vendors to support pagp. A maximum of 8 active ports are supported in a single etherchannel. Oct 16, 2011 11 videos play all hsrp vrrp glbp etherchannel in hindi by jagvinder thind jagvinderthind bitwarden. Etherchannel manual configuration there are two methods of configuring an etherchannel. For example, if you configure spanning tree protocol stp parameters on the port channel, the cisco nxos applies those parameters to each interface in the.
On lappelle aussi bonding, lag, etherchannel, ou encore portchannel. Bipin is a freelance network and system engineer with expertise on cisco, juniper, microsoft, vmware, and other technologies. Port channel vs etherchannel hi, sorry if i go a little bit offtopic about this but here i can read. When setting up an etherchannel connection, remember. Catalyst 2960 and 2960s software configuration guide, 12. Configuring etherchannel utilizing pagp free ccna workbook.
Etherchannel configuration with example icnd2 200105. 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 uses a ciscoproprietary hashing algorithm to achieve this link bonding. Best cisco ccna ccnp and linuxcentos pdf notes 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. Cisco discovery protocol should be enabled on the port channel interface using the cdp enable command in interface configuration mode. Lacp is the ieee standard and is the most common dynamic ether channel protocol, whereas pagp is a cisco proprietary protocol and works only between supported vendors and cisco devices. I tried several methods to do etherchannel on the asr1006 to 3750 switch. To successfully configure etherchannel bonding between two cisco switches using lacp as the aggregation protocol, the following configuration commands are required. Etherchannel guard is a way of finding out if one end of the etherchannel is not configured properly. An etherchannel can be created from between two and eight active fast, gigabit. A lan port in desirable mode can form an etherchannel with another lan port in auto mode. Understanding layer 3 etherchannel support on the cisco isr. Chapter 7 configuring etherchannel on a cisco switch. Etherchannel is enabled by the standardised vendor independent lacp protocol which creates one virtual link out of multiple physical links.
Dynamic channel negotiation using port aggregation protocol pagp which is cisco proprietary implementation. Perform these steps to configure the etherchannel feature on cisco 1900, 2900 and 3900 series isrs. Etherchannel allows you to take up to eight network ports on your switch and treat them as a single larger link. Layer 2 etherchannel configuration best cisco ccna ccnp and. Etherchannel configuration between the switch module. Etherchannel technology was invented by kalpana in the early 1990s. Interfaces in active mode will actively try to form an etherchannel. Note this chapter describes how to configure etherchannels on the catalyst 2960 and 2960s switches. Jul 29, 2018 configuring etherchannel on a cisco switch. Ok, i configure etherchannel between them on two ports making bandwidth up to 2 gb. Etherchannel supports fast, gigabit, and 10 gigabit ethernet ports. In 2008 free ccna workbook originally started as a sharable pdf but quickly evolved into the largest ccna training lab website on the net. Link aggregation, lacp, and etherchannel vmware communities. 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.