rollback configuration

[Noah Wallach]

I am trying to rollback the configuration with the ncclient, and its failing and not sure why.  I am running JUNOS 10.4

here are the relevant lines of code:

--- snip ---

    if (exclusive):
            conn.lock()
        rpc = '''
<rpc>
   <load-configuration rollback="1"/>
</rpc>
'''
        result = conn.rpc(rpc)
        conn.commit()
        if (exclusive):
            conn.unlock()

    conn.close_session()

--- snip ---

here is the trace:

--- snip ---

Traceback (most recent call last):
  File "./push.py", line 191, in <module>
    connect(hostname, user, password)
  File "./push.py", line 183, in connect
    conn.commit()
  File "/usr/local/lib/python2.7/site-packages/ncclient/manager.py", line 107, in wrapper
    return self.execute(op_cls, *args, **kwds)
  File "/usr/local/lib/python2.7/site-packages/ncclient/manager.py", line 174, in execute
    raise_mode=self._raise_mode).request(*args, **kwds)
  File "/usr/local/lib/python2.7/site-packages/ncclient/operations/edit.py", line 145, in request
    return self._request(node)
  File "/usr/local/lib/python2.7/site-packages/ncclient/operations/rpc.py", line 291, in _request
    self._session.send(req)
  File "/usr/local/lib/python2.7/site-packages/ncclient/transport/session.py", line 146, in send
    raise TransportError('Not connected to NETCONF server')
ncclient.transport.errors.TransportError: Not connected to NETCONF server

--- snip ---

[NitinKumar]

Noah,

While using ncclient conn.rpc, we are not supposed to pass <rpc> tag.

Hence your rpc variable need to be:

rpc = """<load-configuration rollback="1"/>"""

Or 

rpc = "<load-configuration rollback='1'/>"

With this rpc your code will work perfectly fine. Hope that helps.

Thanks

Nitin Kr

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[Rick Sherman]

Hi Noah,

This forum is for the support of Junos PyEZ, please keep ncclient questions related to extending PyEZ.

Our framework was specifically developed so that folks did not have to directly code for ncclient.

The way to do this in PyEZ is:

from jnpr.junos.utils.config import Config

cu = Config(dev)

cu.rollback()

Thanks,

-Rick

[Noah Wallach]

Hi Rick,

where is a good place to present my ncclient questions related to interfacing with JUNOS?

Cheers

[Noah Wallach]

Rick,

are there more coding examples than just what I am finding in the py-junos-eznc github repo?  The reason why I've been staying with the ncclient is because there is a larger variety of examples out there.  I am kinda lost on how to do certain things with the Junos PyEZ framework.  Let me put together the list.

Cheers

[Noah Wallach]

Hi there,

did netconf rollback functionality get added post 10.4?
rollback works with 12.1 but not the 10.4 version I am running.
weird.
 

[Rick Sherman]

Hi Noah,

It looks like you are hitting a known bug in 10.4 and was corrected in 11.4R1 and beyond.

I'd like to give another friendly reminder that 10.4 is End-of-Support.

http://www.juniper.net/support/eol/junos.html

The only workaround I can suggest is the following:

>>> cu.load(cmd,format='xml')

<Element load-configuration-results at 0x34f5d08>

>>>

>>> cu.pdiff()

[edit system scripts op]

+     file blah.slax;

-     file blah4.slax;

>>>

>>> dev.rpc.discard_changes()

<Element ok at 0x34fb2c8>

>>> cu.pdiff()

None

-Rick

[Noah Garrett Wallach]

Thanks Rick - I figured I was running into a limitation
and, yes, I know 10.4 is EOS

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