Determining which ports can be used for a broadcast domain

Before you can configure a broadcast domain to add to the new IPspace, you must determine what ports are available for the broadcast domain.

Before you begin

You must be a cluster administrator to perform this task.

About this task

Steps

  1. Determine the current port assignments.
    Example
    network port show
    Node   Port      IPspace      Broadcast Domain Link   MTU    Admin/Oper
    ------ --------- ------------ ---------------- ----- ------- ------------
    node1
           e0a       Cluster      Cluster          up       9000  auto/1000
           e0b       Cluster      Cluster          up       9000  auto/1000
           e0c       Default      Default          up       1500  auto/1000
           e0d       Default      Default          up       1500  auto/1000
           e0e       Default      Default          up       1500  auto/1000
           e0f       Default      Default          up       1500  auto/1000
           e0g       Default      Default          up       1500  auto/1000
    node2
           e0a       Cluster      Cluster          up       9000  auto/1000
           e0b       Cluster      Cluster          up       9000  auto/1000
           e0c       Default      Default          up       1500  auto/1000
           e0d       Default      Default          up       1500  auto/1000
           e0e       Default      Default          up       1500  auto/1000
           e0f       Default      Default          up       1500  auto/1000
           e0g       Default      Default          up       1500  auto/1000

    In this example, the output from the command provides the following information:

    • Ports e0c, e0d, e0e, e0f, and e0g on each node are assigned to the Default broadcast domain.
    • These ports are potentially available to use in the broadcast domain of the IPspace that you want to create.
  2. Determine which ports in the Default broadcast domain are assigned to LIF interfaces, and therefore cannot be moved to a new broadcast domain.
    Example
    network interface show
               
                Logical    Status     Network            Current    Current Is
    Vserver     Interface  Admin/Oper Address/Mask       Node       Port    Home
    ----------- ---------- ---------- ------------------ ---------- ------- ----
    Cluster
                node1_clus1
                             up/up    10.0.2.40/24      node1      e0a     true
                node1_clus2
                             up/up    10.0.2.41/24      node1      e0b     true
                node2_clus1
                             up/up    10.0.2.42/24      node2      e0a     true
                node2_clus2
                             up/up    10.0.2.43/24      node2      e0b     true
    
    cluster1
                cluster_mgmt up/up    10.0.1.41/24      node1      e0c     true
                node1_mgmt
                             up/up    10.0.1.42/24      node1      e0c     true
                node2_mgmt
                             up/up    10.0.1.43/24      node2      e0c     true

    In the following example, the output from the command provides the following information:

    • The node ports are assigned to port e0c on each node and the cluster administrative LIF's home node is on e0c on node1.
    • Ports e0d, e0e, e0f, and e0g on each node are not hosting LIFs and can be removed from the Default broadcast domain and then added to a new broadcast domain for the new IPspace.