diff --git a/neutron/tests/tempest/exceptions.py b/neutron/tests/tempest/exceptions.py
new file mode 100644
index 0000000..09f7016
--- /dev/null
+++ b/neutron/tests/tempest/exceptions.py
@@ -0,0 +1,194 @@
+# Copyright 2012 OpenStack Foundation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import testtools
+
+
+class TempestException(Exception):
+    """
+    Base Tempest Exception
+
+    To correctly use this class, inherit from it and define
+    a 'message' property. That message will get printf'd
+    with the keyword arguments provided to the constructor.
+    """
+    message = "An unknown exception occurred"
+
+    def __init__(self, *args, **kwargs):
+        super(TempestException, self).__init__()
+        try:
+            self._error_string = self.message % kwargs
+        except Exception:
+            # at least get the core message out if something happened
+            self._error_string = self.message
+        if len(args) > 0:
+            # If there is a non-kwarg parameter, assume it's the error
+            # message or reason description and tack it on to the end
+            # of the exception message
+            # Convert all arguments into their string representations...
+            args = ["%s" % arg for arg in args]
+            self._error_string = (self._error_string +
+                                  "\nDetails: %s" % '\n'.join(args))
+
+    def __str__(self):
+        return self._error_string
+
+
+class RestClientException(TempestException,
+                          testtools.TestCase.failureException):
+    pass
+
+
+class InvalidConfiguration(TempestException):
+    message = "Invalid Configuration"
+
+
+class InvalidCredentials(TempestException):
+    message = "Invalid Credentials"
+
+
+class InvalidServiceTag(TempestException):
+    message = "Invalid service tag"
+
+
+class InvalidIdentityVersion(TempestException):
+    message = "Invalid version %(identity_version) of the identity service"
+
+
+class TimeoutException(TempestException):
+    message = "Request timed out"
+
+
+class BuildErrorException(TempestException):
+    message = "Server %(server_id)s failed to build and is in ERROR status"
+
+
+class ImageKilledException(TempestException):
+    message = "Image %(image_id)s 'killed' while waiting for '%(status)s'"
+
+
+class AddImageException(TempestException):
+    message = "Image %(image_id)s failed to become ACTIVE in the allotted time"
+
+
+class EC2RegisterImageException(TempestException):
+    message = ("Image %(image_id)s failed to become 'available' "
+               "in the allotted time")
+
+
+class VolumeBuildErrorException(TempestException):
+    message = "Volume %(volume_id)s failed to build and is in ERROR status"
+
+
+class SnapshotBuildErrorException(TempestException):
+    message = "Snapshot %(snapshot_id)s failed to build and is in ERROR status"
+
+
+class VolumeBackupException(TempestException):
+    message = "Volume backup %(backup_id)s failed and is in ERROR status"
+
+
+class StackBuildErrorException(TempestException):
+    message = ("Stack %(stack_identifier)s is in %(stack_status)s status "
+               "due to '%(stack_status_reason)s'")
+
+
+class StackResourceBuildErrorException(TempestException):
+    message = ("Resource %(resource_name)s in stack %(stack_identifier)s is "
+               "in %(resource_status)s status due to "
+               "'%(resource_status_reason)s'")
+
+
+class AuthenticationFailure(TempestException):
+    message = ("Authentication with user %(user)s and password "
+               "%(password)s failed auth using tenant %(tenant)s.")
+
+
+class EndpointNotFound(TempestException):
+    message = "Endpoint not found"
+
+
+class ImageFault(TempestException):
+    message = "Got image fault"
+
+
+class IdentityError(TempestException):
+    message = "Got identity error"
+
+
+class SSHTimeout(TempestException):
+    message = ("Connection to the %(host)s via SSH timed out.\n"
+               "User: %(user)s, Password: %(password)s")
+
+
+class SSHExecCommandFailed(TempestException):
+    """Raised when remotely executed command returns nonzero status."""
+    message = ("Command '%(command)s', exit status: %(exit_status)d, "
+               "Error:\n%(strerror)s")
+
+
+class ServerUnreachable(TempestException):
+    message = "The server is not reachable via the configured network"
+
+
+class TearDownException(TempestException):
+    message = "%(num)d cleanUp operation failed"
+
+
+class RFCViolation(RestClientException):
+    message = "RFC Violation"
+
+
+class InvalidHttpSuccessCode(RestClientException):
+    message = "The success code is different than the expected one"
+
+
+class BadRequest(RestClientException):
+    message = "Bad request"
+
+
+class ResponseWithNonEmptyBody(RFCViolation):
+    message = ("RFC Violation! Response with %(status)d HTTP Status Code "
+               "MUST NOT have a body")
+
+
+class ResponseWithEntity(RFCViolation):
+    message = ("RFC Violation! Response with 205 HTTP Status Code "
+               "MUST NOT have an entity")
+
+
+class InvalidHTTPResponseHeader(RestClientException):
+    message = "HTTP response header is invalid"
+
+
+class InvalidStructure(TempestException):
+    message = "Invalid structure of table with details"
+
+
+class CommandFailed(Exception):
+    def __init__(self, returncode, cmd, output, stderr):
+        super(CommandFailed, self).__init__()
+        self.returncode = returncode
+        self.cmd = cmd
+        self.stdout = output
+        self.stderr = stderr
+
+    def __str__(self):
+        return ("Command '%s' returned non-zero exit status %d.\n"
+                "stdout:\n%s\n"
+                "stderr:\n%s" % (self.cmd,
+                                 self.returncode,
+                                 self.stdout,
+                                 self.stderr))