During ONTAP upgrade cluster network ports are down
Applies to
- FAS2720
 - FAS2750
 - FAS8200
 - FAS8700
 - AFF A220
 - AFF C190
 - AFF A150
 - ONTAP upgrade
 - Switchless cluster
 
Issue
- One of the nodes completes the update and reboots just running its root aggregate.
 - The node reports 
waiting for cluster applications to come online: 
CLI::> storage failover show
                              Takeover
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
cluster1-01
               cluster1-  true     Connected to cluster1-02
               02
cluster1-02
               cluster1-  true     Connected to cluster1-01.
               01                      Waiting for cluster applications to
                                       come online on the local node.
                                       Offline applications: vldb, vifmgr,
                                       bcomd, crs, scsi blade, clam.
2 entries were displayed.
- Partner node is still running the previous ONTAP version in a 
Partial Givebackstatus. - On each node, the cluster network ports are down:
 
CLI::*> network port show
Node: node_name_01
                                                  Speed(Mbps) Health   Health
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status   Status
--------- ------------ ---------------- ---- ---- ----------- -------- ------
...
e0a       Cluster      -                down 9000  auto/auto  -        false
e0b       Cluster      -                down 9000  auto/auto  -        false
...
10 entries were displayed.
- Automated Non-Disruptive Update (ANDU) is paused:
 
[node_name_02: upgrademgr: upgrademgr.update.pausedErr:error]: The automated update of the cluster has been paused due to the following reason:  Node "node_name_01": Error: {Node "node_name-02" is not in "connected" state after giveback.}, Action: {Use the "storage failover show" command to verify that node "node_name-02" is in the "connected" state.}.
