diff --git a/swift/account/reaper.py b/swift/account/reaper.py
index 1bafeb9871..2afe4b56ce 100644
--- a/swift/account/reaper.py
+++ b/swift/account/reaper.py
@@ -34,7 +34,7 @@
 from swift.common.ring import Ring
 from swift.common.ring.utils import is_local_device
 from swift.common.utils import get_logger, whataremyips, config_true_value, \
-    Timestamp, md5
+    Timestamp, md5, node_to_string
 from swift.common.daemon import Daemon
 from swift.common.storage_policy import POLICIES, PolicyError
 
@@ -379,15 +379,14 @@ def reap_container(self, account, account_partition, account_nodes,
             except ClientException as err:
                 if self.logger.getEffectiveLevel() <= DEBUG:
                     self.logger.exception(
-                        'Exception with %(ip)s:%(port)s/%(device)s', node)
+                        'Exception with %s', node_to_string(node))
                 self.stats_return_codes[err.http_status // 100] = \
                     self.stats_return_codes.get(err.http_status // 100, 0) + 1
                 self.logger.increment(
                     'return_codes.%d' % (err.http_status // 100,))
             except (Timeout, socket.error):
                 self.logger.error(
-                    'Timeout Exception with %(ip)s:%(port)s/%(device)s',
-                    node)
+                    'Timeout Exception with %s', node_to_string(node))
             if not objects:
                 break
             try:
@@ -429,7 +428,7 @@ def reap_container(self, account, account_partition, account_nodes,
             except ClientException as err:
                 if self.logger.getEffectiveLevel() <= DEBUG:
                     self.logger.exception(
-                        'Exception with %(ip)s:%(port)s/%(device)s', node)
+                        'Exception with %s', node_to_string(node))
                 failures += 1
                 self.logger.increment('containers_failures')
                 self.stats_return_codes[err.http_status // 100] = \
@@ -438,8 +437,7 @@ def reap_container(self, account, account_partition, account_nodes,
                     'return_codes.%d' % (err.http_status // 100,))
             except (Timeout, socket.error):
                 self.logger.error(
-                    'Timeout Exception with %(ip)s:%(port)s/%(device)s',
-                    node)
+                    'Timeout Exception with %s', node_to_string(node))
                 failures += 1
                 self.logger.increment('containers_failures')
         if successes > failures:
@@ -506,7 +504,7 @@ def reap_object(self, account, container, container_partition,
             except ClientException as err:
                 if self.logger.getEffectiveLevel() <= DEBUG:
                     self.logger.exception(
-                        'Exception with %(ip)s:%(port)s/%(device)s', node)
+                        'Exception with %s', node_to_string(node))
                 failures += 1
                 self.logger.increment('objects_failures')
                 self.stats_return_codes[err.http_status // 100] = \
@@ -517,8 +515,7 @@ def reap_object(self, account, container, container_partition,
                 failures += 1
                 self.logger.increment('objects_failures')
                 self.logger.error(
-                    'Timeout Exception with %(ip)s:%(port)s/%(device)s',
-                    node)
+                    'Timeout Exception with %s', node_to_string(node))
             if successes > failures:
                 self.stats_objects_deleted += 1
                 self.logger.increment('objects_deleted')
diff --git a/swift/cli/dispersion_report.py b/swift/cli/dispersion_report.py
index a452e58251..605e1281b5 100644
--- a/swift/cli/dispersion_report.py
+++ b/swift/cli/dispersion_report.py
@@ -29,7 +29,8 @@
 from swift.common.internal_client import SimpleClient
 from swift.common.ring import Ring
 from swift.common.exceptions import ClientException
-from swift.common.utils import compute_eta, get_time_units, config_true_value
+from swift.common.utils import compute_eta, get_time_units, \
+    config_true_value, node_to_string
 from swift.common.storage_policy import POLICIES
 
 
@@ -89,7 +90,7 @@ def container_dispersion_report(coropool, connpool, account, container_ring,
     def direct(container, part, nodes):
         found_count = 0
         for node in nodes:
-            error_log = get_error_log('%(ip)s:%(port)s/%(device)s' % node)
+            error_log = get_error_log(node_to_string(node))
             try:
                 attempts, _junk = direct_client.retry(
                     direct_client.direct_head_container, node, part, account,
@@ -201,7 +202,7 @@ def object_dispersion_report(coropool, connpool, account, object_ring,
     def direct(obj, part, nodes):
         found_count = 0
         for node in nodes:
-            error_log = get_error_log('%(ip)s:%(port)s/%(device)s' % node)
+            error_log = get_error_log(node_to_string(node))
             try:
                 attempts, _junk = direct_client.retry(
                     direct_client.direct_head_object, node, part, account,
diff --git a/swift/common/utils.py b/swift/common/utils.py
index d18411938a..d8d4d0d8fb 100644
--- a/swift/common/utils.py
+++ b/swift/common/utils.py
@@ -2783,6 +2783,19 @@ def parse_socket_string(socket_string, default_port):
     return (host, port)
 
 
+def node_to_string(node_dict, replication=False):
+    if replication:
+        ip = node_dict['replication_ip']
+        port = node_dict['replication_port']
+    else:
+        ip = node_dict['ip']
+        port = node_dict['port']
+    if ':' in ip:
+        # IPv6
+        ip = '[%s]' % ip
+    return '{}:{}/{}'.format(ip, port, node_dict['device'])
+
+
 def storage_directory(datadir, partition, name_hash):
     """
     Get the storage directory
diff --git a/swift/container/updater.py b/swift/container/updater.py
index fc7b60eaff..559618c066 100644
--- a/swift/container/updater.py
+++ b/swift/container/updater.py
@@ -32,7 +32,7 @@
 from swift.common.ring import Ring
 from swift.common.utils import get_logger, config_true_value, \
     dump_recon_cache, majority_size, Timestamp, EventletRateLimiter, \
-    eventlet_monkey_patch
+    eventlet_monkey_patch, node_to_string
 from swift.common.daemon import Daemon
 from swift.common.http import is_success, HTTP_INTERNAL_SERVER_ERROR
 from swift.common.recon import RECON_CONTAINER_FILE, DEFAULT_RECON_CACHE_PATH
@@ -340,9 +340,8 @@ def container_report(self, node, part, container, put_timestamp,
                     node['device'], part, 'PUT', container, headers=headers)
             except (Exception, Timeout):
                 self.logger.exception(
-                    'ERROR account update failed with '
-                    '%(replication_ip)s:%(replication_port)s/%(device)s '
-                    '(will retry later): ', node)
+                    'ERROR account update failed with %s (will retry later):',
+                    node_to_string(node, replication=True))
                 return HTTP_INTERNAL_SERVER_ERROR
         with Timeout(self.node_timeout):
             try:
@@ -352,9 +351,8 @@ def container_report(self, node, part, container, put_timestamp,
             except (Exception, Timeout):
                 if self.logger.getEffectiveLevel() <= logging.DEBUG:
                     self.logger.exception(
-                        'Exception with '
-                        '%(replication_ip)s:%(replication_port)s/%(device)s',
-                        node)
+                        'Exception with %s',
+                        node_to_string(node, replication=True))
                 return HTTP_INTERNAL_SERVER_ERROR
             finally:
                 conn.close()
diff --git a/swift/obj/reconstructor.py b/swift/obj/reconstructor.py
index c98e1ff300..7216862b4b 100644
--- a/swift/obj/reconstructor.py
+++ b/swift/obj/reconstructor.py
@@ -30,7 +30,7 @@
 from swift.common.utils import (
     whataremyips, unlink_older_than, compute_eta, get_logger,
     dump_recon_cache, mkdirs, config_true_value,
-    GreenAsyncPile, Timestamp, remove_file,
+    GreenAsyncPile, Timestamp, remove_file, node_to_string,
     load_recon_cache, parse_override_options, distribute_evenly,
     PrefixLoggerAdapter, remove_directory, config_request_node_count_value,
     non_negative_int)
@@ -85,15 +85,11 @@ def _full_path(node, part, relative_path, policy):
     """
     if not isinstance(relative_path, six.text_type):
         relative_path = relative_path.decode('utf8')
-    return '%(replication_ip)s:%(replication_port)s' \
-        '/%(device)s/%(part)s%(path)s ' \
-        'policy#%(policy)d' % {
-            'replication_ip': node['replication_ip'],
-            'replication_port': node['replication_port'],
-            'device': node['device'],
-            'part': part, 'path': relative_path,
-            'policy': policy,
-        }
+    return '%(node)s/%(part)s%(path)s policy#%(policy)d' % {
+        'node': node_to_string(node, replication=True),
+        'part': part, 'path': relative_path,
+        'policy': policy,
+    }
 
 
 class ResponseBucket(object):
diff --git a/swift/obj/replicator.py b/swift/obj/replicator.py
index 45d8a3f85b..ccd0330716 100644
--- a/swift/obj/replicator.py
+++ b/swift/obj/replicator.py
@@ -35,7 +35,7 @@
     rsync_module_interpolation, mkdirs, config_true_value, \
     config_auto_int_value, storage_directory, \
     load_recon_cache, PrefixLoggerAdapter, parse_override_options, \
-    distribute_evenly, listdir
+    distribute_evenly, listdir, node_to_string
 from swift.common.bufferedhttp import http_connect
 from swift.common.daemon import Daemon
 from swift.common.http import HTTP_OK, HTTP_INSUFFICIENT_STORAGE
@@ -628,7 +628,7 @@ def delete_handoff_objs(self, job, delete_objs):
                 if e.errno not in (errno.ENOENT, errno.ENOTEMPTY):
                     error_paths.append(object_path)
                     self.logger.exception(
-                        "Unexpected error trying to cleanup suffix dir:%r",
+                        "Unexpected error trying to cleanup suffix dir %r",
                         suffix_dir)
         return success_paths, error_paths
 
@@ -666,6 +666,7 @@ def update(self, job):
             while attempts_left > 0:
                 # If this throws StopIteration it will be caught way below
                 node = next(nodes)
+                node_str = node_to_string(node, replication=True)
                 target_devs_info.add((node['replication_ip'], node['device']))
                 attempts_left -= 1
                 # if we have already synced to this remote region,
@@ -679,18 +680,16 @@ def update(self, job):
                             node['device'], job['partition'], 'REPLICATE',
                             '', headers=headers).getresponse()
                         if resp.status == HTTP_INSUFFICIENT_STORAGE:
-                            self.logger.error(
-                                '%(replication_ip)s/%(device)s '
-                                'responded as unmounted', node)
+                            self.logger.error('%s responded as unmounted',
+                                              node_str)
                             attempts_left += 1
                             failure_devs_info.add((node['replication_ip'],
                                                    node['device']))
                             continue
                         if resp.status != HTTP_OK:
-                            self.logger.error("Invalid response %(resp)s "
-                                              "from %(ip)s",
-                                              {'resp': resp.status,
-                                               'ip': node['replication_ip']})
+                            self.logger.error(
+                                "Invalid response %(resp)s from %(remote)s",
+                                {'resp': resp.status, 'remote': node_str})
                             failure_devs_info.add((node['replication_ip'],
                                                    node['device']))
                             continue
@@ -728,7 +727,7 @@ def update(self, job):
                     failure_devs_info.add((node['replication_ip'],
                                            node['device']))
                     self.logger.exception("Error syncing with node: %s",
-                                          node)
+                                          node_str)
             stats.suffix_count += len(local_hash)
         except StopIteration:
             self.logger.error('Ran out of handoffs while replicating '
diff --git a/swift/obj/ssync_sender.py b/swift/obj/ssync_sender.py
index efcef6948f..3f3bd94770 100644
--- a/swift/obj/ssync_sender.py
+++ b/swift/obj/ssync_sender.py
@@ -20,7 +20,7 @@
 from swift.common import bufferedhttp
 from swift.common import exceptions
 from swift.common import http
-from swift.common.utils import config_true_value
+from swift.common import utils
 
 
 def encode_missing(object_hash, ts_data, ts_meta=None, ts_ctype=None,
@@ -208,20 +208,18 @@ def __call__(self):
                 return True, can_delete_obj
             except (exceptions.MessageTimeout,
                     exceptions.ReplicationException) as err:
-                self.daemon.logger.error(
-                    '%s:%s/%s/%s %s', self.node.get('replication_ip'),
-                    self.node.get('replication_port'), self.node.get('device'),
-                    self.job.get('partition'), err)
+                node_str = utils.node_to_string(self.node, replication=True)
+                self.daemon.logger.error('%s/%s %s', node_str,
+                                         self.job['partition'], err)
             except Exception:
                 # We don't want any exceptions to escape our code and possibly
                 # mess up the original replicator code that called us since it
                 # was originally written to shell out to rsync which would do
                 # no such thing.
+                node_str = utils.node_to_string(self.node, replication=True)
                 self.daemon.logger.exception(
-                    '%s:%s/%s/%s EXCEPTION in ssync.Sender',
-                    self.node.get('replication_ip'),
-                    self.node.get('replication_port'),
-                    self.node.get('device'), self.job.get('partition'))
+                    '%s/%s EXCEPTION in ssync.Sender',
+                    node_str, self.job['partition'])
             finally:
                 self.disconnect(connection)
         except Exception:
@@ -268,7 +266,7 @@ def connect(self):
                 raise exceptions.ReplicationException(
                     'Expected status %s; got %s (%s)' %
                     (http.HTTP_OK, response.status, err_msg))
-            if self.include_non_durable and not config_true_value(
+            if self.include_non_durable and not utils.config_true_value(
                     response.getheader('x-backend-accept-no-commit', False)):
                 # fall back to legacy behaviour if receiver does not understand
                 # X-Backend-Commit
diff --git a/swift/obj/updater.py b/swift/obj/updater.py
index 1e327b8912..e75b6e7ad2 100644
--- a/swift/obj/updater.py
+++ b/swift/obj/updater.py
@@ -34,7 +34,7 @@
     dump_recon_cache, config_true_value, RateLimitedIterator, split_path, \
     eventlet_monkey_patch, get_redirect_data, ContextPool, hash_path, \
     non_negative_float, config_positive_int_value, non_negative_int, \
-    EventletRateLimiter
+    EventletRateLimiter, node_to_string
 from swift.common.daemon import Daemon
 from swift.common.header_key_dict import HeaderKeyDict
 from swift.common.storage_policy import split_policy_string, PolicyError
@@ -735,15 +735,13 @@ def object_update(self, node, part, op, obj, headers_out):
             if not success:
                 self.logger.debug(
                     'Error code %(status)d is returned from remote '
-                    'server %(ip)s: %(port)s / %(device)s',
-                    {'status': resp.status, 'ip': node['replication_ip'],
-                     'port': node['replication_port'],
-                     'device': node['device']})
+                    'server %(node)s',
+                    {'status': resp.status,
+                     'node': node_to_string(node, replication=True)})
             return success, node['id'], redirect
         except Exception:
-            self.logger.exception(
-                'ERROR with remote server '
-                '%(replication_ip)s:%(replication_port)s/%(device)s', node)
+            self.logger.exception('ERROR with remote server %s',
+                                  node_to_string(node, replication=True))
         except Timeout as exc:
             action = 'connecting to'
             if not isinstance(exc, ConnectionTimeout):
@@ -752,9 +750,8 @@ def object_update(self, node, part, op, obj, headers_out):
                 status = 499
                 action = 'waiting on'
             self.logger.info(
-                'Timeout %(action)s remote server '
-                '%(replication_ip)s:%(replication_port)s/%(device)s: %(exc)s',
-                dict(node, exc=exc, action=action))
+                'Timeout %s remote server %s: %s',
+                action, node_to_string(node, replication=True), exc)
         finally:
             elapsed = time.time() - start
             self.logger.timing('updater.timing.status.%s' % status,
diff --git a/swift/proxy/server.py b/swift/proxy/server.py
index 0cc9698f7f..30ae0b78c6 100644
--- a/swift/proxy/server.py
+++ b/swift/proxy/server.py
@@ -34,7 +34,7 @@
 from swift.common.utils import Watchdog, get_logger, \
     get_remote_client, split_path, config_true_value, generate_trans_id, \
     affinity_key_function, affinity_locality_predicate, list_from_csv, \
-    parse_prefixed_conf, config_auto_int_value, \
+    parse_prefixed_conf, config_auto_int_value, node_to_string, \
     config_request_node_count_value, config_percent_value
 from swift.common.registry import register_swift_info
 from swift.common.constraints import check_utf8, valid_api_version
@@ -647,7 +647,7 @@ def set_node_timing(self, node, timing):
         self.node_timings[node['ip']] = (timing, now + self.timing_expiry)
 
     def _error_limit_node_key(self, node):
-        return "{ip}:{port}/{device}".format(**node)
+        return node_to_string(node)
 
     def error_limited(self, node):
         """
@@ -669,7 +669,7 @@ def error_limited(self, node):
         limited = error_stats['errors'] > self.error_suppression_limit
         if limited:
             self.logger.debug(
-                'Node error limited %(ip)s:%(port)s (%(device)s)', node)
+                'Node error limited: %s', node_to_string(node))
         return limited
 
     def error_limit(self, node, msg):
@@ -686,9 +686,8 @@ def error_limit(self, node, msg):
         error_stats = self._error_limiting.setdefault(node_key, {})
         error_stats['errors'] = self.error_suppression_limit + 1
         error_stats['last_error'] = time()
-        self.logger.error('%(msg)s %(ip)s:%(port)s/%(device)s', {
-            'msg': msg, 'ip': node['ip'],
-            'port': node['port'], 'device': node['device']})
+        self.logger.error('%(msg)s %(node)s',
+                          {'msg': msg, 'node': node_to_string(node)})
 
     def _incr_node_errors(self, node):
         node_key = self._error_limit_node_key(node)
@@ -706,9 +705,8 @@ def error_occurred(self, node, msg):
         self._incr_node_errors(node)
         if isinstance(msg, bytes):
             msg = msg.decode('utf-8')
-        self.logger.error('%(msg)s %(ip)s:%(port)s/%(device)s', {
-            'msg': msg, 'ip': node['ip'],
-            'port': node['port'], 'device': node['device']})
+        self.logger.error('%(msg)s %(node)s',
+                          {'msg': msg, 'node': node_to_string(node)})
 
     def iter_nodes(self, ring, partition, logger, node_iter=None, policy=None):
         return NodeIter(self, ring, partition, logger, node_iter=node_iter,
@@ -732,10 +730,9 @@ def exception_occurred(self, node, typ, additional_info,
             log = self.logger.exception
         if isinstance(additional_info, bytes):
             additional_info = additional_info.decode('utf-8')
-        log('ERROR with %(type)s server %(ip)s:%(port)s/%(device)s'
+        log('ERROR with %(type)s server %(node)s'
             ' re: %(info)s',
-            {'type': typ, 'ip': node['ip'],
-             'port': node['port'], 'device': node['device'],
+            {'type': typ, 'node': node_to_string(node),
              'info': additional_info},
             **kwargs)
 
diff --git a/test/unit/common/test_utils.py b/test/unit/common/test_utils.py
index f351f94aed..46a431ec6d 100644
--- a/test/unit/common/test_utils.py
+++ b/test/unit/common/test_utils.py
@@ -2208,6 +2208,41 @@ def test_storage_directory(self):
         self.assertEqual(utils.storage_directory('objects', '1', 'ABCDEF'),
                          'objects/1/DEF/ABCDEF')
 
+    def test_node_to_string(self):
+        dev = {
+            'id': 3,
+            'region': 1,
+            'zone': 1,
+            'ip': '127.0.0.1',
+            'port': 6200,
+            'replication_ip': '127.0.1.1',
+            'replication_port': 6400,
+            'device': 'sdb',
+            'meta': '',
+            'weight': 8000.0,
+            'index': 0,
+        }
+        self.assertEqual(utils.node_to_string(dev), '127.0.0.1:6200/sdb')
+        self.assertEqual(utils.node_to_string(dev, replication=True),
+                         '127.0.1.1:6400/sdb')
+        dev = {
+            'id': 3,
+            'region': 1,
+            'zone': 1,
+            'ip': "fe80::0204:61ff:fe9d:f156",
+            'port': 6200,
+            'replication_ip': "fe80::0204:61ff:ff9d:1234",
+            'replication_port': 6400,
+            'device': 'sdb',
+            'meta': '',
+            'weight': 8000.0,
+            'index': 0,
+        }
+        self.assertEqual(utils.node_to_string(dev),
+                         '[fe80::0204:61ff:fe9d:f156]:6200/sdb')
+        self.assertEqual(utils.node_to_string(dev, replication=True),
+                         '[fe80::0204:61ff:ff9d:1234]:6400/sdb')
+
     def test_is_valid_ip(self):
         self.assertTrue(is_valid_ip("127.0.0.1"))
         self.assertTrue(is_valid_ip("10.0.0.1"))
diff --git a/test/unit/obj/test_replicator.py b/test/unit/obj/test_replicator.py
index 53eac6db2f..8b35cd8e0e 100644
--- a/test/unit/obj/test_replicator.py
+++ b/test/unit/obj/test_replicator.py
@@ -1742,7 +1742,7 @@ def func(directory):
                             raise_exception_rmdir(OSError, ENOTDIR)):
                 self.replicator.replicate()
             self.assertEqual(mock_logger.get_lines_for_level('error'), [
-                'Unexpected error trying to cleanup suffix dir:%r: ' %
+                'Unexpected error trying to cleanup suffix dir %r: ' %
                 os.path.dirname(df._datadir),
             ])
             self.assertFalse(os.access(whole_path_from, os.F_OK))
@@ -1928,7 +1928,6 @@ def set_default(self):
         # Check incorrect http_connect with status 507 and
         # count of attempts and call args
         resp.status = 507
-        error = '%(replication_ip)s/%(device)s responded as unmounted'
         expected_listdir_calls = [
             mock.call(int(job['partition']),
                       self.replicator.replication_cycle)
@@ -1948,13 +1947,16 @@ def set_default(self):
             self.replicator.update(job)
             error_lines = self.logger.get_lines_for_level('error')
             expected = []
+            error = '%s responded as unmounted'
             # ... first the primaries
             for node in job['nodes']:
-                expected.append(error % node)
+                node_str = utils.node_to_string(node, replication=True)
+                expected.append(error % node_str)
             # ... then it will get handoffs
             for node in job['policy'].object_ring.get_more_nodes(
                     int(job['partition'])):
-                expected.append(error % node)
+                node_str = utils.node_to_string(node, replication=True)
+                expected.append(error % node_str)
             # ... and finally we get an error about running out of nodes
             expected.append('Ran out of handoffs while replicating '
                             'partition %s of policy %d' %
@@ -1978,13 +1980,16 @@ def set_default(self):
         mock_do_listdir.return_value = False
         # Check incorrect http_connect with status 400 != HTTP_OK
         resp.status = 400
-        error = 'Invalid response %(resp)s from %(ip)s'
+        error = 'Invalid response %(resp)s from %(node)s'
         for job in jobs:
             set_default(self)
             self.replicator.update(job)
             # ... only the primaries
-            expected = [error % {'resp': 400, 'ip': node['replication_ip']}
-                        for node in job['nodes']]
+            expected = [
+                error % {
+                    "resp": 400,
+                    "node": utils.node_to_string(node, replication=True)}
+                for node in job['nodes']]
             self.assertEqual(expected,
                              self.logger.get_lines_for_level('error'))
             self.assertEqual(len(self.replicator.partition_times), 1)
@@ -1994,12 +1999,13 @@ def set_default(self):
         # incorrect pickle.loads(resp.read())
         resp.status = 200
         resp.read.return_value = b'garbage'
-        expect = 'Error syncing with node: %r: '
+        expect = 'Error syncing with node: %s: '
         for job in jobs:
             set_default(self)
             self.replicator.update(job)
             # ... only the primaries
-            expected = [expect % node for node in job['nodes']]
+            expected = [expect % utils.node_to_string(node, replication=True)
+                        for node in job['nodes']]
             error_lines = self.logger.get_lines_for_level('error')
             self.assertEqual(expected, error_lines)
             self.assertEqual(len(self.replicator.partition_times), 1)