concat : ValueError: Shape of passed values is (4, 9), indices imply (4, 5)
#### Code Sample, a copy-pastable example if possible

```python
switch = ['chi41vg224r3', 'chi41vg224r2', 'chi41s12', 'chi41s5', 'chi41s4', 'chi41s7', 'chi41s6', 'chi41s3', 'chi41m1', 'chi41m1', 'chi41m1', 'chidc41m4', 'chidc41m4', 'chidc41m4', 'chidc41m4']
port = ['Fas 0/0', 'Fas 0/0', 'Gig 1/1/2', 'Ten 6/1', 'Ten 6/1', 'Ten 6/1', 'Ten 6/1', 'Ten 6/1', 'Gig 3/2', 'Gig 5/2', 'Gig 5/1', 'Eth 1/34', 'Eth 1/33', 'Eth 1/32', 'Eth 1/31']
po1 = pd.DataFrame([])
stn1 = pd.DataFrame([])
sta1 = pd.DataFrame([])
saa1 = pd.DataFrame([])
allin1 = pd.DataFrame([])

for (sw, op) in zip(switch, other_port):
    switch1 = {'device_type': 'cisco_ios', 'ip': sw, 'username': user, 'password': password, 'port':'22'}
    connect1= ConnectHandler(**switch1)
    opout =connect1.send_command_expect('show run interface '+op)
    connect1.disconnect()
    cfg1 = opout.split('\n')
    parse1 = CiscoConfParse(cfg1)
    intera = parse1.find_objects(r"^interface")
    interf = []
    for interfa in intera:
        tx = interfa.text
        interf.append(tx)
    df2 = pd.DataFrame(dict(Interface=interf))
    po1 = po1.append(df2)

    ALL1 = parse1.find_children_w_parents(r"^interface", r"^")
    STA1 = parse1.find_children_w_parents(r"^interface", r"switchport trunk allowed ")
    SAA1 = parse1.find_children_w_parents(r"^interface", r"switchport trunk allowed add ")
    STN1 = parse1.find_children_w_parents(r"^interface", r"switchport trunk native ")

    ALL_T1 = pd.DataFrame(list(zip(*(interf, ALL1))), columns=('Interface', 'ALL1'))
    allin1 = allin1.append(ALL_T1)
    STA_T1 = pd.DataFrame(list(zip(*(interf, STA1))), columns=('Interface', 'STA1'))
    sta1 = sta1.append(STA_T1)
    SAA_T1 = pd.DataFrame(list(zip(*(interf, SAA1))), columns=('Interface', 'SAA1'))
    saa1 = saa1.append(SAA_T1)
    STN_T1 = pd.DataFrame(list(zip(*(interf, STN1))), columns=('Interface', 'STN1'))
    stn1 = stn1.append(STN_T1)

csv_data = pd.concat([po1.set_index('Interface'), allin1.set_index('Interface'), sta1.set_index('Interface'), saa1.set_index('Interface'), stn1.set_index('Interface')],1, sort=True).reset_index()
csv_data.rename(columns={'index': 'NeighborINT'}, inplace=True)


Output of po1 :

    Interface
0   interface GigabitEthernet1/1/2
0   interface TenGigabitEthernet6/1
0   interface TenGigabitEthernet6/1
0   interface TenGigabitEthernet6/1
0   interface TenGigabitEthernet6/1
0   interface TenGigabitEthernet6/1
0   interface GigabitEthernet3/2
0   interface GigabitEthernet5/2
0   interface GigabitEthernet5/1

Output of allin1 :

    Interface                       ALL1
0   interface GigabitEthernet1/1/2  description uplink to chi41m2
0   interface TenGigabitEthernet6/1 description Uplink
0   interface TenGigabitEthernet6/1 description Uplink
0   interface TenGigabitEthernet6/1 description Uplink
0   interface TenGigabitEthernet6/1 description Uplink
0   interface TenGigabitEthernet6/1 description Uplink
0   interface GigabitEthernet3/2    description CHI41LABFW1-Eth1
0   interface GigabitEthernet5/2    description trunk to chi41m2
0   interface GigabitEthernet5/1    description trunk to chi41m2

output of sta1 :

    Interface                       STA1
0   interface GigabitEthernet1/1/2  switchport trunk allowed vlan 20,41,99-101,10...
0   interface TenGigabitEthernet6/1 switchport trunk allowed vlan 20,41,45,102,10...
0   interface TenGigabitEthernet6/1 switchport trunk allowed vlan 20,41,45,102,10...
0   interface TenGigabitEthernet6/1 switchport trunk allowed vlan 20,41,106,107,1...
0   interface TenGigabitEthernet6/1 switchport trunk allowed vlan 20,41,99-101,10...
0   interface TenGigabitEthernet6/1 switchport trunk allowed vlan 20,41,100,101,1...

output of saa1 (here its empty since, none match in the above script):

Interface   SAA1

output of stn1 :

    Interface                       STN1
0   interface GigabitEthernet1/1/2  switchport trunk native vlan 41
0   interface TenGigabitEthernet6/1 switchport trunk native vlan 41
0   interface TenGigabitEthernet6/1 switchport trunk native vlan 41
0   interface TenGigabitEthernet6/1 switchport trunk native vlan 41
0   interface TenGigabitEthernet6/1 switchport trunk native vlan 41
0   interface TenGigabitEthernet6/1 switchport trunk native vlan 41

Error:

> ValueError                                Traceback (most recent call last)
<ipython-input-131-dce15d2880ec> in <module>()
----> 1 csv_data1 = pd.concat([po1.set_index('Interface'), allin1.set_index('Interface'), sta1.set_index('Interface'), saa1.set_index('Interface'), stn1.set_index('Interface')],1, sort=True).reset_index()

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\reshape\concat.py in concat(objs, axis, join, join_axes, ignore_index, keys, levels, names, verify_integrity, sort, copy)
    224                        verify_integrity=verify_integrity,
    225                        copy=copy, sort=sort)
--> 226     return op.get_result()
    227 
    228 

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\reshape\concat.py in get_result(self)
    421             new_data = concatenate_block_managers(
    422                 mgrs_indexers, self.new_axes, concat_axis=self.axis,
--> 423                 copy=self.copy)
    424             if not self.copy:
    425                 new_data._consolidate_inplace()

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\internals.py in concatenate_block_managers(mgrs_indexers, axes, concat_axis, copy)
   5423         blocks.append(b)
   5424 
-> 5425     return BlockManager(blocks, axes)
   5426 
   5427 

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\internals.py in __init__(self, blocks, axes, do_integrity_check)
   3280 
   3281         if do_integrity_check:
-> 3282             self._verify_integrity()
   3283 
   3284         self._consolidate_check()

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\internals.py in _verify_integrity(self)
   3491         for block in self.blocks:
   3492             if block._verify_integrity and block.shape[1:] != mgr_shape[1:]:
-> 3493                 construction_error(tot_items, block.shape[1:], self.axes)
   3494         if len(self.items) != tot_items:
   3495             raise AssertionError('Number of manager items must equal union of '

~\AppData\Local\Continuum\anaconda3\lib\site-packages\pandas\core\internals.py in construction_error(tot_items, block_shape, axes, e)
   4841         raise ValueError("Empty data passed with indices specified.")
   4842     raise ValueError("Shape of passed values is {0}, indices imply {1}".format(
-> 4843         passed, implied))
   4844 
   4845 

ValueError: Shape of passed values is (4, 9), indices imply (4, 5).]
```
#### Problem description

[I am logging into various network devices and trying to concat the output. Above script its working fine perfectly. I am facing the issue when i am trying to Concat the output of po1, allin1, sta1, saa1, stn1 using axis=1. I have given the output of all the variable below. po1 will be the source here, if any of the index is not available in other variables it need to show "NAn". If you have issue on understanding the question, please let me know.


#### Expected Output
Interface						ALL1							SAA1	STA1												STN1
0	interface GigabitEthernet1/1/2	description uplink to aust41m2	NaN		switchport trunk allowed vlan 20,41,99-101,10...	switchport trunk native vlan 41
1	interface TenGigabitEthernet6/1	description Uplink				NaN		switchport trunk allowed vlan 20,41,45,102,10...	switchport trunk native vlan 41
2	interface TenGigabitEthernet6/1	description Uplink				NaN		switchport trunk allowed vlan 20,41,45,102,10...	switchport trunk native vlan 41
3	interface TenGigabitEthernet6/1	description Uplink				NaN		switchport trunk allowed vlan 20,41,106,107,1...	switchport trunk native vlan 41
4	interface TenGigabitEthernet6/1	description Uplink				NaN		switchport trunk allowed vlan 20,41,99-101,10...	switchport trunk native vlan 41
5	interface TenGigabitEthernet6/1	description Uplink				NaN		switchport trunk allowed vlan 20,41,100,101,1...	switchport trunk native vlan 41
6	interface GigabitEthernet3/2	description AUST41LABFW1-Eth1	NaN		NaN													NaN
7	interface GigabitEthernet5/2	description trunk to aust41m2	NaN		NaN													NaN
8	interface GigabitEthernet5/1	description trunk to aust41m2	NaN		NaN													NaN


#### Output of ``pd.show_versions()``

<details>

[paste the output of ``pd.show_versions()`` here below this line]

INSTALLED VERSIONS
------------------
commit: None
python: 3.6.3.final.0
python-bits: 64
OS: Windows
OS-release: 10
machine: AMD64
processor: Intel64 Family 6 Model 142 Stepping 9, GenuineIntel
byteorder: little
LC_ALL: None
LANG: en
LOCALE: None.None

pandas: 0.23.1
pytest: 3.2.1
pip: 18.0
setuptools: 39.2.0
Cython: 0.26.1
numpy: 1.13.3
scipy: 0.19.1
pyarrow: None
xarray: None
IPython: 6.1.0
sphinx: 1.6.3
patsy: 0.4.1
dateutil: 2.6.1
pytz: 2017.2
blosc: None
bottleneck: 1.2.1
tables: 3.4.2
numexpr: 2.6.2
feather: None
matplotlib: 2.1.0
openpyxl: 2.4.8
xlrd: 1.1.0
xlwt: 1.3.0
xlsxwriter: 1.0.2
lxml: 4.1.0
bs4: 4.6.0
html5lib: 0.999999999
sqlalchemy: 1.1.13
pymysql: None
psycopg2: None
jinja2: 2.9.6
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: None
</details>
