Configuring intercluster LIFs on dedicated ports

You can configure intercluster LIFs on dedicated ports. Doing so typically increases the available bandwidth for replication traffic.

Procedure

  1. List the ports in the cluster:network port show
    For complete command syntax, see the man page.
    The following example shows the network ports in cluster01:
    cluster01::> network port show
                                                                 Speed (Mbps)
    Node   Port      IPspace      Broadcast Domain Link   MTU    Admin/Oper
    ------ --------- ------------ ---------------- ----- ------- ------------
    cluster01-01
           e0a       Cluster      Cluster          up     1500   auto/1000
           e0b       Cluster      Cluster          up     1500   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
    cluster01-02
           e0a       Cluster      Cluster          up     1500   auto/1000
           e0b       Cluster      Cluster          up     1500   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
    
  2. Determine which ports are available to dedicate to intercluster communication:network interface show -fields home-port,curr-port
    For complete command syntax, see the man page.
    The following example shows that ports e0e and e0f have not been assigned LIFs:
    cluster01::> network interface show -fields home-port,curr-port
    vserver lif                  home-port curr-port
    ------- -------------------- --------- ---------
    Cluster cluster01-01_clus1   e0a       e0a
    Cluster cluster01-01_clus2   e0b       e0b
    Cluster cluster01-02_clus1   e0a       e0a
    Cluster cluster01-02_clus2   e0b       e0b
    cluster01
            cluster_mgmt         e0c       e0c
    cluster01
            cluster01-01_mgmt1   e0c       e0c
    cluster01
            cluster01-02_mgmt1   e0c       e0c
    
  3. Create a failover group for the dedicated ports:network interface failover-groups create -vserver system_SVM -failover-group failover_group -targets physical_or_logical_ports
    The following example assigns ports e0e and e0f to the failover group intercluster01 on the system SVM cluster01:
    cluster01::> network interface failover-groups create -vserver cluster01 -failover-group 
    intercluster01 -targets 
    cluster01-01:e0e,cluster01-01:e0f,cluster01-02:e0e,cluster01-02:e0f
  4. Verify that the failover group was created:network interface failover-groups show
    For complete command syntax, see the man page.
    cluster01::> network interface failover-groups show
                                      Failover
    Vserver          Group            Targets
    ---------------- ---------------- --------------------------------------------
    Cluster
                     Cluster
                                      cluster01-01:e0a, cluster01-01:e0b,
                                      cluster01-02:e0a, cluster01-02:e0b
    cluster01
                     Default
                                      cluster01-01:e0c, cluster01-01:e0d,
                                      cluster01-02:e0c, cluster01-02:e0d,
                                      cluster01-01:e0e, cluster01-01:e0f
                                      cluster01-02:e0e, cluster01-02:e0f
                     intercluster01
                                      cluster01-01:e0e, cluster01-01:e0f
                                      cluster01-02:e0e, cluster01-02:e0f
  5. Create intercluster LIFs on the system SVM and assign them to the failover group.
    Option Description
    In ONTAP 9.6 and later: network interface create -vserver system_SVM -lif LIF_name -service-policy default-intercluster -home-node node -home-port port -address port_IP -netmask netmask -failover-group failover_group
    In ONTAP 9.5 and earlier: network interface create -vserver system_SVM -lif LIF_name -role intercluster -home-node node -home-port port -address port_IP -netmask netmask -failover-group failover_group
    For complete command syntax, see the man page.
    The following example creates intercluster LIFs cluster01_icl01 and cluster01_icl02 in the failover group intercluster01:
    cluster01::> network interface create -vserver cluster01 -lif cluster01_icl01 -service-
    policy default-intercluster -home-node cluster01-01 -home-port e0e -address 192.168.1.201 
    -netmask 255.255.255.0 -failover-group intercluster01
    
    cluster01::> network interface create -vserver cluster01 -lif cluster01_icl02 -service-
    policy default-intercluster -home-node cluster01-02 -home-port e0e -address 192.168.1.202 
    -netmask 255.255.255.0 -failover-group intercluster01
    
  6. Verify that the intercluster LIFs were created:
    Option Description
    In ONTAP 9.6 and later: network interface show -service-policy default-intercluster
    In ONTAP 9.5 and earlier: network interface show -role intercluster
    For complete command syntax, see the man page.
    cluster01::> network interface show -service-policy default-intercluster
                Logical    Status     Network            Current       Current Is
    Vserver     Interface  Admin/Oper Address/Mask       Node          Port    Home
    ----------- ---------- ---------- ------------------ ------------- ------- ----
    cluster01
                cluster01_icl01
                           up/up      192.168.1.201/24   cluster01-01  e0e     true
                cluster01_icl02
                           up/up      192.168.1.202/24   cluster01-02  e0f     true
  7. Verify that the intercluster LIFs are redundant:
    Option Description
    In ONTAP 9.6 and later: network interface show -service-policy default-intercluster -failover
    In ONTAP 9.5 and earlier: network interface show -role intercluster -failover
    For complete command syntax, see the man page.
    The following example shows that the intercluster LIFs cluster01_icl01 and cluster01_icl02 on the SVM e0e port will fail over to the e0f port.
    cluster01::> network interface show -service-policy default-intercluster –failover
             Logical         Home                  Failover        Failover
    Vserver  Interface       Node:Port             Policy          Group
    -------- --------------- --------------------- --------------- --------
    cluster01
             cluster01_icl01 cluster01-01:e0e   local-only      intercluster01
                                Failover Targets:  cluster01-01:e0e,
                                                   cluster01-01:e0f
             cluster01_icl02 cluster01-02:e0e   local-only      intercluster01
                                Failover Targets:  cluster01-02:e0e,
                                                   cluster01-02:e0f