CI Failure (Error reading SSH protocol banner) in NodePoolMigrationTest.test_migrating_redpanda_nodes_to_new_pool

[vbotbuildovich]

https://buildkite.com/redpanda/vtools/builds/14998

Module: rptest.tests.node_pool_migration_test
Class: NodePoolMigrationTest
Method: test_migrating_redpanda_nodes_to_new_pool
Arguments: {
    "test_mode": "no_tiered_storage",
    "balancing_mode": "off",
    "cleanup_policy": "compact,delete"
}

test_id:    NodePoolMigrationTest.test_migrating_redpanda_nodes_to_new_pool
status:     FAIL
run time:   59.229 seconds

SSHException('Error reading SSH protocol banner')
Traceback (most recent call last):
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/paramiko/transport.py", line 2327, in _check_banner
    buf = self.packetizer.readline(timeout)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/paramiko/packet.py", line 381, in readline
    buf += self._read_timeout(timeout)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/paramiko/packet.py", line 618, in _read_timeout
    raise EOFError()
EOFError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 184, in _do_run
    data = self.run_test()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 276, in run_test
    return self.test_context.function(self.test)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/mark/_mark.py", line 535, in wrapper
    return functools.partial(f, *args, **kwargs)(*w_args, **w_kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/services/cluster.py", line 105, in wrapped
    r = f(self, *args, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/tests/node_pool_migration_test.py", line 328, in test_migrating_redpanda_nodes_to_new_pool
    self.start_producer()
  File "/home/ubuntu/redpanda/tests/rptest/tests/node_pool_migration_test.py", line 222, in start_producer
    self.producer.start(clean=False)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/services/service.py", line 265, in start
    self.start_node(node, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/services/kgo_verifier_services.py", line 672, in start_node
    self.spawn(cmd, node)
  File "/home/ubuntu/redpanda/tests/rptest/services/kgo_verifier_services.py", line 155, in spawn
    pid_str = node.account.ssh_output(wrapped_cmd, timeout_sec=10)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 41, in wrapper
    return method(self, *args, **kwargs)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 381, in ssh_output
    client = self.ssh_client
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 217, in ssh_client
    self._set_ssh_client()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 41, in wrapper
    return method(self, *args, **kwargs)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 192, in _set_ssh_client
    client.connect(
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/paramiko/client.py", line 450, in connect
    t.start_client(timeout=timeout)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/paramiko/transport.py", line 738, in start_client
    raise e
paramiko.ssh_exception.SSHException: Error reading SSH protocol banner

JIRA Link: CORE-4285