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    Managing Virtual Chassis Fabrics

    Network Director supports Virtual Chassis Fabrics (VCFs) that are constructed using the spine-and-leaf architecture. In the spine-and-leaf architecture, each spine device is connected to one or more leaf devices.

    Network Director enables you to modify an existing VCF by using the Manage Virtual Chassis Fabric task. You can add, remove, or replace VCF members, and configure software packages for automatically upgrading new member devices. If the VCF is in non-mixed mode, you can add only QFX 5100 devices.

    To modify a VCF:

    1. In Build mode, select the VCF that you want to modify from the View pane and select Device Management > Manage Virtual Chassis Fabric from the Tasks pane.

      The Virtual Chassis Topology page opens displaying the connectivity of the VCF in the spine-and-leaf architecture. The Designated Master node is marked with a gold star. The Backup Master node is marked with a silver star. Nodes that are not present, inactive, unprovisioned, or pre-provisioned appear in gray color. You cannot replace or remove such nodes.

    2. Click Edit VCF. Network Director displays the Add Spines, Add Leaves, and Specify Software Package buttons.

    You can perform the following tasks from the Virtual Chassis Topology page:

    Adding Spine Device(s) to the Virtual Chassis Fabric

    A VCF can contain up to 4 spine nodes and a total of 20 nodes.

    To add a spine device:

    1. Click Add Spine. The Add Device as Spine Node(s) window opens. If the VCF is in non-mixed mode, you can add only QFX 5100 devices, so only those devices are listed.
    2. To add devices that are managed by Network Director as spine nodes, click Managed Devices. Do the following for each device that you want to add in the Select Managed Devices window that opens:
      1. Select the check box next to the device.
      2. Select the node’s role in the Role column.
      3. When you have selected all the nodes you want, click OK. The window closes and the added device appears in the node list on the Add Devices as Spine Node(s) window.
    3. To add devices that are not managed by Network Director as spine nodes, click New Devices. Do the following in the Add New Devices window that opens:
      1. Enter the device serial number in the Serial Number field.
      2. Select the node’s role from the Role list.
      3. To add more devices, click Add More and repeat the steps to add more devices.
      4. When you finish adding devices, click Add. The window closes and the added devices appear in the node list on the Add Devices as Spine Node(s) window.
    4. When you finish adding spine nodes, do the following in the Add Devices as Spine Node(s) window:
      • To remove a node from the list, click the trash can icon at the end of the node’s table row.
      • When you finish configuring the list of spine nodes, click Done. The window closes and the spine nodes you configured appear as spine devices in the Virtual Chassis Topology page. The master Routing Engine node is identified with a gold star. The backup Routing Engine node is identified with a silver star.
    5. Click Deploy to deploy the changes that you made to the VCF.

    Adding Leaf Node(s) to the Virtual Chassis Fabric

    A VCF can contain up to 4 spine nodes and a total of 20 nodes.

    To add leaf nodes to the VCF:

    1. Click Add Leaves. The Add Device as Leaf Node(s) window opens. If the VCF is in non-mixed mode, you can only add QFX 5100 devices, so only those devices are listed.
    2. To add managed devices as leaf nodes, click Managed Devices:
      1. Select the check box next to the devices you want to add.
      2. Click OK. The window closes and the added devices appear in the node list on the Add Devices as Leaf Node(s) window.
    3. To add a device that is not managed by Network Director as a leaf node, click New Devices. This option is not available if the VCF is configured for automatic provisioning. Do the following in the window that opens:
      1. Enter the device serial number in the Serial Number field.
      2. To add another device, click Add More and repeat the steps to add more devices.
      3. When you finish adding devices, click Add. The window closes and the added devices appear in the node list on the Add Devices as Leaf Node(s) window.
    4. When you finish adding leaf nodes, do the following in the Add Devices as Leaf Node(s) window:
      • To remove a node from the list, click the trash can icon at the end of the node’s table row.
      • When you finish configuring the list of leaf nodes, click Done. The window closes and the leaf nodes you configured appear as leaf devices in the Virtual Chassis Topology page.
    5. Click Deploy to deploy the changes that you made to the VCF.

    Replacing Spine or Leaf Devices

    Network Director enables you to replace a spine or leaf device with another VCF-compatible device. You cannot replace the Designated Master node.

    To replace a spine or leaf device:

    1. Mouse over the leaf or spine device that you want to replace and click . The Replace Spine Node or the Replace Leaf Node window opens depending on the type of device that you want to replace.
    2. To replace a spine or the leaf node with a device that Network Director is managing, click Managed Devices. Do the following for the device that you want to replace in the Select Managed Devices window that opens:
      1. Select the check box next to the device.
      2. Select the node’s role in the Role column.
      3. Click OK. The window closes and the selected devices appear in the node list on the Replace Spine Node or the Replace Leaf Node window.
    3. To replace a device that is not managed by Network Director as a spine or the leaf node, click New Devices. This option is not available if the VCF is configured for automatic provisioning. Do the following in the Add New Devices window that opens:
      1. Enter the device serial number in the Serial Number field.
      2. Click Add. The window closes and the added devices appear in the node list on the Replace Spine Node or the Replace Leaf Node window.
    4. Click Done. The window closes and the nodes that you replaced appear in the Virtual Chassis Topology page, marked with a pencil icon.
    5. Click Deploy to deploy the changes that you made to the VCF.

    Removing Spine or Leaf Devices

    Follow these steps to remove a spine or leaf device from the VCF. You cannot remove the Designated Master device.

    1. Mouse over the leaf or spine device that you want to replace and click . Network Director prompts you to confirm the deletion.
    2. Click Yes to confirm or No to cancel the removal.
    3. Click Deploy to deploy the changes that you made to the VCF.

    Configuring Software Package for Upgrade

    You can configure a VCF to automatically upgrade new devices that are added to the VCF to a specified software package. For this functionality to work, you must specify the location of the software upgrade image files. Use the Specify Software Package page to specify the location of the image files for each device type that is included in the VCF.

    To configure software packages for upgrading VCF devices:

    1. Click Specify Software Package. The Specify Software Package window opens.
    2. To configure software image upgrades on the VCF, do the following for each device type listed on the page:

      1. Select the location of the software image by selecting a radio button:
        • Select FTP Server if the software image file is located on an FTP server.
        • Select HTTP Server if the software image file is located on an HTTP server.
        • Select Device if the software image file is located on the device.
      2. Enter the URL where the software image file is located in the text box:
        • If you selected FTP Server or HTTP Server, the text box is labeled Software Package URL. Enter the URL where the software image file is located on the server. Begin the URL with ftp:// for an FTP server or http:// for an HTTP server.
        • If you selected Device, the text box is labeled Software Package Pathname. Enter the pathname where the software image file is located on the device. Begin the pathname with a slash (/) to indicate the root directory.
    3. Click Done to save the changes.
    4. Click Deploy to deploy the changes that you made to the VCF.

    Deploying VCF Configuration Changes

    When you deploy the modified VCF configuration, Network Director performs these major steps:

    1. Deletes the VCP ports that are connected to the members that are selected for deletion.
    2. Recycles the deleted member.
    3. Deploys the configuration to the VCF.
    4. Restarts all newly added managed VCF devices in factory-default mode.

    You can see the status of the deployment job. See Managing Configuration Deployment Jobs for information. If deployment to the VCF Master device fails, the entire VCF deployment is cancelled.

    Modified: 2018-01-23