On Nov 29, 2013, at 1:11 PM, Sayaji Patil <sayaj...@gmail.com> wrote:
>
> Hi,
> I have set up an all-in-one installation using devstack. When I try to
> create an instance, I get this error when the plugin tries to create a vlan
> on the nexus switch
>
> 2013-11-27 16:38:29.752 ^[[00;32mDEBUG ncclient.transport.ssh
> [^[[00;36m-^[[00;32m] ^[[01;35m^[[00;32mstarting thread (client mode):
> 0x4509ed0L^[[00m ^[[00;33mfrom (pid=13833) _log
> /usr/lib/python2.6/site-packages/paramiko/transport.py:1406^[[00m
> 2013-11-27 16:38:29.753 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31mException: Error reading SSH protocol
> banner^[[00m
> 2013-11-27 16:38:29.753 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31mTraceback (most recent call
> last):^[[00m
> 2013-11-27 16:38:29.753 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31m File
> "/usr/lib/python2.6/site-packages/paramiko/transport.py", line 1557, in
> run^[[00m
> 2013-11-27 16:38:29.753 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31m self._check_banner()^[[00m
> 2013-11-27 16:38:29.754 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31m File
> "/usr/lib/python2.6/site-packages/paramiko/transport.py", line 1683, in
> _check_banner^[[00m
> 2013-11-27 16:38:29.754 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31m raise SSHException('Error reading
> SSH protocol banner' + str(x))^[[00m
> 2013-11-27 16:38:29.754 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31mSSHException: Error reading SSH
> protocol banner^[[00m
> 2013-11-27 16:38:29.754 ^[[01;31mERROR ncclient.transport.ssh
> [^[[00;36m-^[[01;31m] ^[[01;35m^[[01;31m^[[00m
> 2013-11-27 16:38:29.754 ^[[01;31mERROR neutron.plugins.ml2.managers
> [^[[01;36mreq-b51e27b6-2808-47ad-95db-e9d0113fcfe1 ^[[00;36mNone
> None^[[01;31m] ^[[01;35m^[[01;31mMechanism driver 'cisco_nexus' failed in
> update_port_postcommit^[[00m
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00mTraceback (most recent call last):
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/plugins/ml2/managers.py",
> line 156, in _call_on_drivers
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m getattr(driver.obj, method_name)(context)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/mech_cisco_nexus.py",
> line 159, in update_port_postcommit
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m self._invoke_nexus_on_port_event(context)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/mech_cisco_nexus.py",
> line 149, in _invoke_nexus_on_port_event
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m self._manage_port(vlan_name, vlan_id, host_id, instance_id)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/mech_cisco_nexus.py",
> line 114, in _manage_port
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m vlan_name, port_id)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus_network_driver.py",
> line 194, in create_and_trunk_vlan
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m self.create_vlan(nexus_host, vlan_id, vlan_name)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus_network_driver.py",
> line 131, in create_vlan
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m self._edit_config(nexus_host, target='running',
> config=confstr)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus_network_driver.py",
> line 68, in _edit_config
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m mgr = self.nxos_connect(nexus_host)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/plugins/ml2/drivers/cisco/nexus_network_driver.py",
> line 114, in nxos_connect
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m raise cexc.NexusConnectFailed(nexus_host=nexus_host, exc=e)
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00mNexusConnectFailed: Unable to connect to Nexus 172.25.31.82.
> Reason: Negotiation failed.
> ^[[01;31m2013-11-27 16:38:29.754 TRACE neutron.plugins.ml2.managers
> ^[[01;35m^[[00m
> 2013-11-27 16:38:29.755 ^[[01;31mERROR neutron.openstack.common.rpc.amqp
> [^[[01;36mreq-b51e27b6-2808-47ad-95db-e9d0113fcfe1 ^[[00;36mNone
> None^[[01;31m] ^[[01;35m^[[01;31mException during message handling^[[00m
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00mTraceback (most recent call last):
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/openstack/common/rpc/amqp.py", line 438, in
> _process_data
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m **args)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/common/rpc.py", line 44, in
> dispatch
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m neutron_ctxt, version, method, namespace, **kwargs)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File
> "/opt/stack/neutron/neutron/openstack/common/rpc/dispatcher.py", line 172, in
> dispatch
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m result = getattr(proxyobj, method)(ctxt, **kwargs)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/plugins/ml2/rpc.py", line
> 192, in update_device_up
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m q_const.PORT_STATUS_ACTIVE)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/plugins/ml2/plugin.py",
> line 690, in update_port_status
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m self.mechanism_manager.update_port_postcommit(mech_context)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/plugins/ml2/managers.py",
> line 395, in update_port_postcommit
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m self._call_on_drivers("update_port_postcommit", context)
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m File "/opt/stack/neutron/neutron/plugins/ml2/managers.py",
> line 167, in _call_on_drivers
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00m method=method_name
> ^[[01;31m2013-11-27 16:38:29.755 TRACE neutron.openstack.common.rpc.amqp
> ^[[01;35m^[[00mMechanismDriverError: update_port_postcommit failed.
>
> Also now when I try to manually ssh to the switch, I get this error
>
> [root@openstackcoi logs]# ssh 172.25.31.82 -l admin
> ssh_exchange_identification: Connection closed by remote host
>
> This is my ml2_conf_cisco.ini
>
> [ml2_mech_cisco_nexus:172.25.31.82]
> openstackcoi=1/1
> ssh_port=22
> username=admin
> password=*******
>
> Regards,
> Sayaji
>
Sayali:
Can you try ensuring you've done an ssh to the switch using the
same username you are running devstack as? I believe you have
to do this for the ssh to work, and only need to do this once. Let
me know if this solves your problem.
Thanks,
Kyle
>
>
> _______________________________________________
> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> Post to : openstack@lists.openstack.org
> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
_______________________________________________
Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Post to : openstack@lists.openstack.org
Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
