Adding a Node to a Stack

From the perspective of a new node, adding a node to an active topology is similar to bringing up a new stack. To add a node to a stack, use the following procedure.

Note

If the node being added is actually a replacement node for one that was previously removed, see Replacing a Node with the Same Switch Type or Replacing a Node with a Different Switch Type.

Review the general and model-specific configuration guidelines for the switch you are installing. These guidelines are described in Stack Configuration Guidelines.

Before connecting the switch to the stack, prepare the switch as follows:
1. With the power off, install any required option cards as described in the Summit Family Switches Hardware Installation Guide.
2. Power on the new node.
3. Use the show switch command to verify that the new node is using the same ExtremeXOS software version as the stack to which it will be added.
  If it is not using the correct version, install the correct version.
4. Use the show switch command to verify that the ExtremeXOS software is booted on the same image (primary or secondary) on which the stack is booted. 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 a unique slot number for the new node (see Configuring Slot Numbers).
  Select a slot number that is not already in use in the stack to which this node will be added.
7. Configure the node's master-capability to correspond to the role it should have in the stack (see Configuring Master-Capability).
8. 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).
9. Configure the node role priority to correspond to the priority it should have in the stack (see Configuring the Master, Backup, and Standby Roles).
10. Configure an alternate IP address and gateway (see About Configuring an Alternate IP Address and Gateway).
11. 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.
12. 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).
13. If the stack will use MPLS, the stack must contain only Summit X460, X480, X670, X670G2, and X770 switches, and you must configure all stack switches to use the enhanced stacking protocol as described in Selecting the Stacking Protocol.
Connect the stacking links to the new node and use the reboot command to reboot the node.
For cabling instructions, see the Summit Family Switches Hardware Installation Guide.
At the stack master node, run the synchronize stacking {node-address node_address | slot slot_number} command and do not specify a node-address or a slot.
Reboot the new node by entering the command: reboot slot [slot-number | node-address node-address].
(Optional) Run the show stacking configuration command and verify that the configuration is what you want.

Published March 2020prev | next

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