Configure intercluster LIFs on dedicated ports

10/14/2021 Contributors

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

Steps

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

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

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
```

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

Create intercluster LIFs on the system SVM and assign them to the failover group.

Option Description

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`

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

Verify that the intercluster LIFs were created:

Option Description

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`

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

Verify that the intercluster LIFs are redundant:

Option Description

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`

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 SVMe0e 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

Configure intercluster LIFs on dedicated ports

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