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;31m*SSHException: 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^[[00m*NexusConnectFailed: 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
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