Takeover disabled (unsynchronized log) due to HA interconnect Port flapping

• FAS26x0
• FAS27x0
• Internal HA interconnect model system

• Takeover status flapping due to unstable HA interconnect link.

[gop_eq_thread: ic.linkStatusChange:info]: HA interconnect: Port ic0a link is down.
[ctrl_hb_port_ic0a: ctrl.rdma.heartBeat:info]: HA interconnect: Missed heartbeat to xxx.x.x.x.
[ cf_main: cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of node disabled (HA interconnect error. Verify that the partner node is running and that the HA interconnect cabling is correct, if applicable. For further assistance, contact technical support).
[ gop_eq_thread: ic.linkStatusChange:info]: HA interconnect: Port ic0a link is up.

• The internal HA interconnect communicates from the ic0a port on the motherboard through the chassis backplane.

Example: 

::> set advanced

Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel.
Do you want to continue? {y|n}: y

::*> system ha interconnect config show

                       Node: node-1
          Interconnect Type: GOP (PLX PEX8725 NTB)
            Local System ID: xxxxxxxxx
          Partner System ID: xxxxxxxxx
       Connection Initiator: partner
                  Interface: backplane

Port   IP Address
----   -----------------
ic0a   192.0.1.4

                       Node: Node-2
          Interconnect Type: GOP (PLX PEX8725 NTB)
            Local System ID: xxxxxxxxx
          Partner System ID: xxxxxxxxx
       Connection Initiator: local
                  Interface: backplane

Port   IP Address
----   -----------------
ic0a   xxx.x.x.x

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