Replacing a Node with the Same Switch Type

When you replace a node with the same switch type, for example when you replace an X460-G2-24t-GE4 switch with another X460-G2-24t-GE4 switch, you can continue to use the same stack configuration.

If you are replacing a node with a different switch type, you must change the stack configuration before the new node can operate. Follow the procedure in Replacing a Node with a Different Switch Type.

Note

Note

Summit X440, X450-G2, X460, X460-G2, X480, X670, X670-G2, and X770 switches (configured using configure stacking easy-setup) use the enhanced stacking protocol by default. Summit X450-G2, X460-G2, X670-G2, and X770 switches support only enhanced mode. When you are replacing an X440, X460, X480, or X670 switch configured with the enhanced stacking protocol, be sure to add configure stacking protocol enhanced before joining the switch to the active stack topology.

To replace a node with an identical switch type, follow these steps:

  1. Use the show switch, show licenses, and show stacking configuration commands to display configuration information for the node that is being replaced.
    Note the following attributes of the node you are replacing:
    • ExtremeXOS software version
    • Partition on which the switch is booted
    • Effective license level for the stack
    • Slot number
    • Stacking protocol: standard or enhanced
    • Master-capable feature configuration
    • Node priority
    • Alternate gateway IP address
  2. Remove the stacking cables from the node that is being replaced.
  3. Replace the node with another switch of the same type.
  4. Before connecting the new (replacement) switch to the stack, prepare the switch as follows:
    1. Review the attributes needed for the node you are installing, as listed in step 1.
    2. With the power off, install any required option cards as described in ExtremeSwitching and Summit Switches: Hardware Installation Guide for Switches Using ExtremeXOS 16 or Earlier.
    3. Power on the new node.
    4. Use the show switch command to verify that the new node's software is compatible with the stack:
      • The new node, must run the same ExtremeXOS version as the stack. Install the correct version if necessary.
      • The ExtremeXOS software must be booted on the same image (primary or secondary) as the stack. If the new node is booted on a different image, change the image before you continue.
    5. Use the enable stacking command to enable stacking. Then decline the Easy Setup option.
    6. Configure the slot number for the replacement node using the slot number noted in step 1 (see Configuring Slot Numbers).
    7. If the replaced node was using the enhanced stacking protocol, use the configure stacking protocol command to select that protocol.
    8. Configure the node's master-capability to correspond to the role it should have in the stack (see Configuring Master-Capability).
    9. If the new node will operate as a master-capable node, use the show licenses command to verify that the enabled license level is at the same level as the master-capable nodes in the stack.
      If necessary, configure the license-level restriction of the new node to be same as the other master-capable nodes in the stack (see Managing Licenses on a Stack).
    10. Configure the node role priority to correspond to the priority it should have in the stack (see Configuring the Master, Backup, and Standby Roles).
    11. Configure an alternate IP address and gateway (see Configuring an Alternate IP Address and Gateway).
    12. If the new node is a Summit X670V switch with a VIM4-40G4X option card, configure the option card ports as described in Configuring Stacking Port Operation with the VIM4-40G4X Option Card.
    13. If the new node will use the SummitStack-V feature, configure the alternate stack ports as described in Using Ethernet Ports for Stacking (SummitStack-V).
    14. If the stack will use MPLS, enter the command configure stacking protocol enhanced.
      Note

      Note

      To use MPLS, the stack can contain only Summit X460-G2, X670-G2, and X770 switches, and all switches must use the enhanced stacking protocol.
  5. Connect the stacking cables and reboot the node. The new node will join the stack topology.
  6. At the stack master node, enter synchronize stacking.
    Note

    Note

    If the master node was replaced, log into another stack node before entering this command.
  7. Reboot the new node by entering the command: reboot slot [slot-number | node-address node-address].
    Note

    Note

    If the master node was replaced, reboot the stack by entering the reboot command at the master node.
  8. (Optional) Run the show stacking configuration command and verify that the configuration is what you want.
    Note

    Note

    To verify that the new node became operational, enter the show slot {slot {detail} | detail } command. If the slot shows a Mismatch state, the node was replaced with a different type of switch (see Replacing a Node with a Different Switch Type).