DR clusters, they didnt recover after Gateway Node shutdown.
---Step1---
On cluster : shaikh-roks415-dr-tok-odf6
Gateway node shutdown: 10.244.0.7
-----Step2---
Submariner communication Broke
----Step3---
Annotated node 10.244.0.8 as GatewayNode and
Untagged 10.244.0.7 as GatewayNode
Still "verify" Test Failed"
----Step4---
Made Node 10.244.0.7 comeback
Still things are unhealthy

Version-Release number of selected component (if applicable):

oc get pods -n submariner-operator -o wide
NAME                                             READY   STATUS                 RESTARTS   AGE     IP              NODE         NOMINATED NODE   READINESS GATES
query-iface-listhjb4d                            0/1     NodeAffinity           0          6d15h   <none>          10.244.0.7   <none>           <none>
query-iface-listx49jm                            0/1     NodeAffinity           0          6d15h   <none>          10.244.0.7   <none>           <none>
submariner-addon-7b5ccb6568-xhlzq                1/1     Running                0          6d15h   172.29.81.1     10.244.0.9   <none>           <none>
submariner-gateway-tvphv                         1/1     Terminating            0          5d14h   10.244.0.8      10.244.0.8   <none>           <none>
submariner-lighthouse-agent-75ffbd48d-qqs4c      1/1     Running                0          4d9h    172.29.80.193   10.244.0.9   <none>           <none>
submariner-lighthouse-coredns-67c7654989-sh7wh   1/1     Running                0          6d15h   172.29.234.13   10.244.0.8   <none>           <none>
submariner-lighthouse-coredns-67c7654989-vdj57   1/1     Running                0          12d     172.29.80.209   10.244.0.9   <none>           <none>
submariner-metrics-proxy-tfwkj                   0/1     CreateContainerError   0          5d14h   172.29.234.36   10.244.0.8   <none>           <none>
submariner-operator-6f58d65564-rxnf9             1/1     Running                0          12d     172.29.80.225   10.244.0.9   <none>           <none>
submariner-routeagent-l5fd2                      1/1     Running                0          12d     10.244.0.8      10.244.0.8   <none>           <none>
submariner-routeagent-m7g59                      1/1     Running                0          12d     10.244.0.9      10.244.0.9   <none>           <none>
submariner-routeagent-zmq9m                      1/1     Running                1          12d     10.244.0.7      10.244.0.7   <none>           <none>