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Michael,

Are you using Linux Bridge or OvS?

There is a bug report: Linux bridge does not work with cisco_nexus ml2 plugins

https://bugs.launchpad.net/networking-cisco/+bug/1421024

anthony.

From: Michael Gale [mailto:gale.michael at gmail.com]
Sent: Tuesday, February 16, 2016 12:42 PM
To: openstack at lists.openstack.org
Subject: [Openstack] Nexus 9K - Nexus: Segment is an invalid type or not supported by this driver??

Hello,

    I am having issues getting my Liberty environment working with VXLAN and N9K.

Currently I am getting the following errors in the logs on startup:
--snip--
2016-02-16 13:18:42.097 595 WARNING networking_cisco.plugins.ml2.drivers.cisco.nexus.mech_cisco_nexus [req-825a9891-0467-4958-86ca-c98486a7bf52 - - - - -] Nexus: Segment is an invalid type or not supported by this driv
er. Network type = vxlan Physical network = None. Event not processed.
--snip--

When trying to launch an instance:
--snip--
ERROR neutron.plugins.ml2.managers [req-d15ab080-7aa4-46e5-a5c3-b62a13c5646d d2b4e18cf27d41418845439f5d788523 eaa185709c79477fa1e3edfffa4e4c7f - - -] Failed to bind port 9b32f0e7-6b5b-4ced-84b7-262ea12e090c on host compute1

Nexus: Segment is None, Event not processed
--snip--

I am assuming I am missing something in the configuration file however I can't figure it out. Any help is greatly appreciated.

Thanks
Michael

Here is my ml2_conf.ini

--snip--
# ML2 general
[ml2]
type_drivers = flat,vlan,nexus_vxlan,local
tenant_network_types = nexus_vxlan
mechanism_drivers = linuxbridge,l2population,cisco_nexus
extension_drivers = port_security
path_mtu = 0
segment_mtu = 0



# ML2 VLAN networks
[ml2_type_vlan]
network_vlan_ranges = physeth1:100:163

[ml2_mech_cisco_nexus:10.92.192.45]
infra1_neutron_agents_container-ee5293cb=1/17
infra1_neutron_server_container-ed083568=1/17
infra2_neutron_agents_container-65f32f70=1/18
infra2_neutron_server_container-1e0b996b=1/18
infra3_neutron_agents_container-2faafbe7=1/19
infra3_neutron_server_container-9eabc975=1/19
compute1=1/21
compute2=1/22
username=openstack
password=foo123
ssh_port=22
physnet=physeth1

[ml2_mech_cisco_nexus:10.92.192.46]
infra1_neutron_agents_container-ee5293cb=1/17
infra1_neutron_server_container-ed083568=1/17
infra2_neutron_agents_container-65f32f70=1/18
infra2_neutron_server_container-1e0b996b=1/18
infra3_neutron_agents_container-2faafbe7=1/19
infra3_neutron_server_container-9eabc975=1/19
compute1=1/21
compute2=1/22
username=openstack
password=foo123
ssh_port=22
physnet=physeth1

# ML2 VXLAN networks
[ml2_type_vxlan]
vxlan_group =
vni_ranges = 1:1000

[ml2_type_nexus_vxlan]
# Comma-separated list of <vni_min>:<vni_max> tuples enumerating
# ranges of VXLAN VNI IDs that are available for tenant network allocation.
vni_ranges=50000:55000

# Multicast groups for the VXLAN interface. When configured, will
# enable sending all broadcast traffic to this multicast group. Comma separated
# list of min:max ranges of multicast IP's
# NOTE: must be a valid multicast IP, invalid IP's will be discarded
mcast_ranges=225.1.1.1:225.1.1.2

# Security groups
[securitygroup]
enable_security_group = True
enable_ipset = True

--snip--


and my linuxbridge_agent.ini:
--snip--
# Linux bridge agent physical interface mappings
[linux_bridge]

physical_interface_mappings = physeth1:eth11

# Linux bridge agent VXLAN networks
[vxlan]

enable_vxlan = True
vxlan_group =
# VXLAN local tunnel endpoint
local_ip = 10.96.2.141
l2_population = True


# Agent
[agent]
prevent_arp_spoofing = False

# Security groups
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
enable_security_group = True

--snip--

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