1. Introduction
Welcome to the EVPN Multihoming hands-on lab!
Before starting, please take note of these useful tools that will help you navigate the virtual environment. **COPY - PASTE** Copy-paste is available in this lab to paste commands from the guide into the switch command line. To use this feature: 1. Highlight and copy commands from this guide using Ctrl-C. 2. Click on the switch console where you want to paste the command(s). 3. Click the tools icon (1) shown below. 4. Click the paste icon (2), choosing "Allow" if prompted. 5. After seeing the commands copied to the command line, click anywhere inside the switch console, then press Enter. **SCREEN RESIZING** Move the resizing bar (3) left and right to increase/decrease the size of the guide as needed for a better view.
Introduction to Dell Enterprise SONiC EVPN Multihoming
1
Give the system a few minutes to show **Lab Status: Tests Passed. Your Lab is Ready!** at the top right corner of the screen on the left. Once the lab is ready, select the **Dell Enterprise SONiC EVPN Multihoming** project from the Projects library tab and click **OK.**
2
Dell Enterprise SONiC enhances the EVPN fabric with a standards-based multihoming feature to provide link redundancy, bandwidth, and failover capabilities. In most cases, this link aggregation method is considered a superior technology to MLAG. It requires no direct physical cabling between leaf switches, and can utilize up to four VTEP leaf connections, as opposed to only two with MLAG. This doubles the amount of bandwidth and triples the number of redundant links over MLAG. For more information on these differences, click or scan <https://infohub.delltechnologies.com/en-US/p/be-more-agile-with-evpn-multihoming-mh/>
3
The figure below shows an example of a maximum number of VTEPs connecting to a single host's port channel 1 (Po1), when using EVPN multihoming.
4
The initial network topology you will use for this lab is shown below. In completing the lab, you will only be concerned with the areas outlined in orange. Please do not modify other components.
One or more red dots beside a host or switch indicates the device is still booting and will be up momentarily. Green dots indicate a device is ready. You may continue with the lab regardless of boot status.
5
This initial Leaf-Spine topology has several hosts, each attached to a single VTEP. The goal of this lab is to demonstrate adding a second link to Host1-40, that will attach to Leaf2/VTEP2, then validate both links are active in an EVPN Multihomed LAG. For this lab, Host2-40 is only used to validate traffic to and from Host1-40. Use the following credentials to complete the lab: - `Host1-40: gns3/gns3` - `Leaf1 and Leaf2: admin/admin123`
6
In the next section, you will connect a cable between Host1-40 and Leaf2 as shown below, and begin the multihoming configuration.
Click Close at the top of this guide and proceed to Part 2 - Adding links to EVPN multihoming.
1. Introduction
Welcome to the EVPN Multihoming hands-on lab!
Before starting, please take note of these useful tools that will help you navigate the virtual environment. **COPY - PASTE** Copy-paste is available in this lab to paste commands from the guide into the switch command line. To use this feature: 1. Highlight and copy commands from this guide using Ctrl-C. 2. Click on the switch console where you want to paste the command(s). 3. Click the tools icon (1) shown below. 4. Click the paste icon (2), choosing "Allow" if prompted. 5. After seeing the commands copied to the command line, click anywhere inside the switch console, then press Enter. **SCREEN RESIZING** Move the resizing bar (3) left and right to increase/decrease the size of the guide as needed for a better view.
Introduction to Dell Enterprise SONiC EVPN Multihoming
1
Give the system a few minutes to show **Lab Status: Tests Passed. Your Lab is Ready!** at the top right corner of the screen on the left. Once the lab is ready, select the **Dell Enterprise SONiC EVPN Multihoming** project from the Projects library tab and click **OK.**
2
Dell Enterprise SONiC enhances the EVPN fabric with a standards-based multihoming feature to provide link redundancy, bandwidth, and failover capabilities. In most cases, this link aggregation method is considered a superior technology to MLAG. It requires no direct physical cabling between leaf switches, and can utilize up to four VTEP leaf connections, as opposed to only two with MLAG. This doubles the amount of bandwidth and triples the number of redundant links over MLAG. For more information on these differences, click or scan <https://infohub.delltechnologies.com/en-US/p/be-more-agile-with-evpn-multihoming-mh/>
3
The figure below shows an example of a maximum number of VTEPs connecting to a single host's port channel 1 (Po1), when using EVPN multihoming.
4
The initial network topology you will use for this lab is shown below. In completing the lab, you will only be concerned with the areas outlined in orange. Please do not modify other components.
One or more red dots beside a host or switch indicates the device is still booting and will be up momentarily. Green dots indicate a device is ready. You may continue with the lab regardless of boot status.
5
This initial Leaf-Spine topology has several hosts, each attached to a single VTEP. The goal of this lab is to demonstrate adding a second link to Host1-40, that will attach to Leaf2/VTEP2, then validate both links are active in an EVPN Multihomed LAG. For this lab, Host2-40 is only used to validate traffic to and from Host1-40. Use the following credentials to complete the lab: - `Host1-40: gns3/gns3` - `Leaf1 and Leaf2: admin/admin123`
6
In the next section, you will connect a cable between Host1-40 and Leaf2 as shown below, and begin the multihoming configuration.
Click Close at the top of this guide and proceed to Part 2 - Adding links to EVPN multihoming.
