Post Upgrade Configuration for Zero Touch Fabric Configuration and Nickname Assignment

Note

Note

In this section, a Zero Touch Fabric release refers to any of the following: VOSS 8.3, Fabric Engine 8.6, or later releases.

The switch initiates Zero Touch Fabric Configuration if you boot without a configuration file.

For Fabric Engine 8.9, or earlier, to add new Zero Touch Fabric Configuration devices or implement Zero Touch Fabric Configuration on existing devices, the network requires a nickname server and reachability to the DHCP server and, optionally, ExtremeCloud IQ servers or ExtremeCloud IQ ‑ Site Engine. How you implement Zero Touch Fabric Configuration depends on if the network is a new deployment, or an existing Fabric network that you upgrade. In a new deployment, you can meet the network requirements with one node, known as a seed node. In an existing network, functions can already exist on different nodes.

For devices running Fabric Engine 8.10 or later, the nickname automatically generates when you add new Zero Touch Fabric Configuration devices or implement Zero Touch Fabric Configuration on existing devices. You can configure a nickname server in your network with a dynamic nickname to replace the self-assigned nickname on your device.

For more details on Zero Touch Fabric Configuration, see Fabric Engine User Guide.

Important

Important

Not all upgrade paths are validated by Extreme Networks for each new software release. To understand the validated upgrade paths, see Validated Upgrade Paths.

Network Requirements

The following list identifies the network requirements before you add new Zero Touch Fabric Configuration devices or implement Zero Touch Fabric Configuration on existing devices:

Zero Touch Fabric Configuration Switch

Important

Important

If you deploy a Fabric-capable switch with Auto-sense enabled, the switch interacts with existing switches that support Fabric Attach (FA). If an existing FA Proxy switch does not have FA server connectivity established yet, it will form an FA connectivity to the newly connected VOSS (8.3 or later) or Fabric Engine, switch as it announces itself as an FA server. To avoid unintended FA connectivity, disable Auto-sense using the no auto-sense enable command on the relevant ports.

On switches (upgraded existing or newly deployed) where you want to initiate Zero Touch Fabric Configuration, perform the following tasks:

  1. Upgrade to a Zero Touch Fabric release, if the device is not a new deployment already running a Zero Touch Fabric release. As a best practice, upgrade to a Fabric Engine release. For a new deployment of universal hardware, ensure the network operating system (NOS) is Fabric Engine.

  2. On upgraded existing switches, ensure the switch boots without a configuration file. The switch joins the network as an end host. To ensure the switch boots without a configuration file, perform one of the following actions:

    • Rename existing primary and secondary configuration files. Use the mv command to rename the existing configuration files. For example, mv config.cfg config.cfg.backup.

      This is the preferred option because it ensures that the primary and secondary files are removed while making a backup of them at the same time. This option also ensures that the switch uses the default config.cfg file for the final configuration after it has successfully onboarded.

    • Delete the existing primary and secondary configuration files. Create a backup of these files before you delete them.

    • Boot from non-existent configuration files. Use the boot config choice command to configure the primary and backup configuration files to reference files that do not exist on the switch:

      boot config choice primary config-file nonexistent1.cfg

      boot config choice primary backup-config-file nonexistent2.cfg

      This option also works, however, after the switch has successfully onboarded, it does not use the default config.cfg file but uses the alternative configuration file name provided instead, which might not be desired.

  3. The switch creates a Zero Touch Deployment configuration to onboard the switch, including the following Zero Touch Fabric Configuration items:

    Note

    Note

    For more details on Zero Touch Deployment, see Fabric Engine User Guide.

    • Creates private VLAN 4048.

    • Enables SPBM.

    • Creates SPBM instance 1.

    • Creates default backbone VLANs (B-VLAN) (4051 and 4052).

    • Creates manual area 00.1515.fee1.900d.1515.fee1.900d.

      Note

      Note

      The B-VLAN and manual area configuration values are not compulsory. This remote switch can attach to a Fabric core that does not match these values because the Auto-sense functionality dynamically learns the B-VLANs and manual area in use in the Fabric core from the connected seed node using LLDP.

    • Creates the onboarding I-SID 15999999.

    • Assigns the onboarding I-SID to private VLAN 4048 and also includes the management VLAN.

      Note

      Note

      As a best practice, use the onboarding I-SID for onboarding purposes and, whenever possible, configure a management VLAN or management CLIP on a different I-SID after the onboarding procedures have been successfully completed.

    • Enables Auto-sense on all ports.

    • Configures Auto-sense access ports and Layer 2 trusted Auto-sense ports.

    • Enables IS-IS globally.

    • With Auto-sense, ports on a switch can detect whether they connect to an SPB device, a Fabric Attach (FA) client, FA Proxy, Voice IP devices, or an undefined host, and then make the necessary configuration.

  4. If the seed node uses Auto-sense IS-IS Authentication, configure the remote switch to use the same authentication type and key as the seed node.

    Note

    Note

    This step only applies to devices running releases earlier than Fabric Engine 8.10.

  5. The switch joins the Fabric.

  6. For devices running releases earlier than Fabric Engine 8.10, the nickname server dynamically assigns an SPBM nickname. For devices running releases Fabric Engine 8.10, or later, the switch automatically assigns an SPBM nickname. The device searches the network for a nickname server and if one is found, the device replaces the automatic nickname with the dynamic nickname assigned by the server.

  7. After the Zero Touch Fabric establishes successfully, the switch attempts to acquire an IP address on the onboarding VLAN and I-SID using DHCP. When the DHCP client obtains an IP address for the switch, the switch automatically attempts to connect to ExtremeCloud IQ and ExtremeCloud IQ - Site Engine.