*hi,
I just encountered the problem with connecting the switch, pica 8 3290,
with ryu's of-config library.*
*I've googled the problem, paramiko.ssh_exception.SSHException: Channel
closed,
however, there isn't any appropriate solution to my problem.
Thus, I wanna to seek for the help of connecting to the physical SDN switch
using of-config protocol/library.
Anyone can give me some instructions of solving this problem?
Truly appreciate your help*
*here's the traceback msg.
==================================================================
xdn41o71:ryu Mac$ sudo ryu-manager ryu/app/of_config.py
Password:
loading app ryu/app/of_config.py
Connected (version 2.0, client OpenSSH_6.0p1)
Authentication (password) successful!
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/bin/ryu-manager",
line 9, in <module>
load_entry_point('ryu==3.20.1', 'console_scripts', 'ryu-manager')()
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/cmd/manager.py",
line 88, in main
app_mgr.load_apps(app_lists)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/base/app_manager.py",
line 390, in load_apps
cls = self.load_app(app_cls_name)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/base/app_manager.py",
line 366, in load_app
mod = utils.import_module(name)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/utils.py",
line 91, in import_module
__import__(name)
File "/Users/Mac/ryu/ryu/app/of_config.py", line 9, in <module>
unknown_host_cb=lambda host, fingeprint: True)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/lib/of_config/capable_switch.py",
line 50, in __init__
self.netconf = connect(*self._connect_args, **self._connect_kwargs)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/contrib/ncclient/manager.py",
line 67, in connect_ssh
session.connect(*args, **kwds)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ryu/contrib/ncclient/transport/ssh.py",
line 208, in connect
c.invoke_subsystem("netconf")
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/paramiko/channel.py",
line 60, in _check
return func(self, *args, **kwds)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/paramiko/channel.py",
line 254, in invoke_subsystem
self._wait_for_event()
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/paramiko/channel.py",
line 1086, in _wait_for_event
raise e
*paramiko.ssh_exception.SSHException: Channel closed.*
==================================================================
*
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