Dell Active Fabric Manager OpenStack Guide
Contents
1. 13 5 Step 4 Installing the and Port Bonding s ssssssssssssssssessessesessssessssessesessssenseeees 15 Step 4 1 Installing the LLDP Package csessssssssssssesesesesescsescseseseseseceeecaeecaesesesceseeecaescacaeaeaeseeecesesaeeseeesaeeeeeeaes 15 Step 4 2 Install and Configure Port Bonding ssscssscssescsescseecsesccsceesceecseecacsesceesesesesecesecaeesaeasacaeeaeeeceeecaneteeaes 15 6 Step 5 Installing the Dell OVS Agennt ccssssssessessssesssssesssssssssessssessesssesassesseeatsesees 19 7 Step 6 Configuring the Dell OVS Agent scsssssssssssesssssssssssessssssssessssssesessesaesaeeacsaesaeeaees 21 Step 1 Creating the Physical and Integration Dridg ssscssessssseesssssesssesceeecseecseacseeceeseecaeseacaeaeaesesecesecetesaeeeas 21 Step 2 Configuring the Dell OVS PIUQ in cscssssessseseceseseeesesescseseseseseceeeceeecacesaeecseseeeaeecaceeacaeseaeeuesetecateseeetaeees 21 Step 3 Configuring the Rootwrap ssscesscssscesesecesesescsescseseseseeceeecaeececsesescsesaeesaeeeacaeacaeseeeceueceeesaeesacaeaeaeeeseeecaeees 22 Step 4 Restart the Dell OVS Agent on Nova Compute Node or Network 4 4 44 23 Step 5 Configure the Nova Compute Node or Network Node 23 8 Step 7 Connecting to the AFM Servel s sssscssssssscssessssssssessessssssseeseesessesseessessesee2. ip_exec_usr IpNetnsExecFilter usr sbin ip root Step 4 Restart the Dell OVS Agent on Nova Compute Node or Network Node To restart the Dell OVS Agent on Nova Compute Node or Network Node 1 Navigate to the etc init directory 2 a backup of the existing quantum plugin openvswitch agent conf file 3 Change the quantum plugin openvswitch agent conf file as follows so that the Dell OVS Agent configuration is selected and runs it exec start stop daemon start chuid quantum exec usr bin quantum openvswitch agent config file etc quantum quantum conf config file etc quantum plugins dell agent dell_ovs_quantum_plugin ini log file var log quantum openvswitch agent log NOTE The following configuration picks up the Dell OVS agent and runs it config file etc quantum plugins dell agent dell_ovs_quantum_plugin ini 4 0 each Nova Compute Node or Network Node start the Dell OVS Agent by executing the service quantum plugin openvswitch agent restart command Step 5 Configure the Nova Compute Node or Network Node To test the connectivity of VM instances on different Compute Nodes apply the nova security rule and modify the administrator password settings These security rules allow the VMs to ping each other Pre requisities To execute these commands install the Nova CLI client needs to be installed on each compute node or network node For information about install the Nova client refer to standard CLI
3. 19 20 Step 6 Configuring the Dell OVS Agent To configure the Dell OVS Agent Create the physical and integration bridge Configure the Dell OVS Plug in Configure the Rootwrap Restart the Dell OVS Agent on Nova Compute Node or Network Node Se Configure the Nova Compute Node or Network Node Step 1 Creating the Physical and Integration bridge This section describes how to add the physical port and bonding to the Dell OVS agent For each Ethernet port that connects to the switches you create a physical bridge and integration bridge On each Nova Compute node and network node the physical bridge and integration bridge can be connected by one of the following ways e single Ethernet port for example eth4 e Port bonding two Ethernet ports For port bonding configure port bonding bondO with two Ethernet ports for example eth4 and eth5 Example Adding a Physical Port to the Dell OVS Agent The following example shows how to create an integration bridge and add a physical port to the bridge for eth4 ovs vsctl add br br eth4 Create a integration bridge to the bridge ovs vsctl add port br eth4 eth4 Add a physical port Example Adding a Port Bonding to the Dell OVS Agent The following examples shows how to add port bonding bond0 to the Dell OVS agent ovs vsctl add br br bond0 Create a integration bridge ovs vsctl add port br bond0 0 Add the port bonding port the bridge F
4. nodes gation 1 Aggregation 2 172 16 14 119 172 16 14 217 172 16 14 222 co VM 172 16 4 23 172 16 14 223 The AFM Plugin is installed on the OpenStack Controller Node The Dell OVS Agent is installed on each Nova Compute node and Network node At runtime the OpenStack Neutron Server communicates with the AFM Server through a restful API to manage the physical topology Pre requisites for Using the Plug In Before you use the AFM plug in for OpenStack e Install and configure OpenStack software Ubuntu 12 0 4 LTS For information about this topic see http docs openstack org grizzly basic install apt content A typical deployment scenario is one controller node one network node and a series of nova compute nodes The OpenStack Neutron server is installed on the controller node After the installation make sure all the services are started on all the nodes and the VMs can be launched before you apply the AFM plug in for OpenStack Ensure that the DNS is enabled in the OpenStack Neutron server Ensure that the AFM administrator has created a fabric with the Openstack Neutron Managed option enabled at the Fabric Name and Type screen using the AFM Design Wizard and has deployed a complete fabric that is ready for service Key Considerations When using the AFM plug in consider the following The AFM Plug in for OpenStack resides on the OpenStack Neutron server The AFM plug in supports VLANs The AFM
5. Port Bonding Before you install and configure the Dell OVS agent install the following on the Nova compute node and network node e LLDP package NOTE Use the LLDP package for dynamic discovery of server switch connectivity If you are using static switch server connectivity see Configuring Static Switch Server Connectivity e Port Bonding Step 4 1 Installing the LLDP Package To install LLDP on the Nova compute node On the Nova compute node and network node login as root Install the lldpd package using the apt get install IIdpd command 1 2 3 Start the lldpd package using the service lldpd start command 4 Install lidpad Ildptool using the apt get install command 5 Verify the successful installation of package on the Nova compute node and network node using the lldpctl command to detect connected neighbors Step 4 2 Install and Configure Port Bonding When you connectto a Nova compute node and network node to the fabric thatthe Active Fabric Manager AFM manages you can connect to the Ethernet ports to the two leaf or access switches in the AFM supported topologies These two connections provide redundancy When you have two connections from a Nova compute node and network node to the switches create a Ubuntu Bonding port so thatthe compute node can use the redundancy from these two ports For information about port bonding see https help ubuntu com community UbuntuBonding
6. action show amp redirect LinkAggregation To install and configure port bonding 1 the Nova compute node install port bonding using the following command sudo apt get install ifenslave 2 6 2 Verify that bonding module is in the kernel system is in the etc modules configuration file using the following command sudo vi etc modules The bonding module file should look like the following etc modules kernel modules to load at boot time This file contains the names of kernel modules that should be loaded at boot time per line Lines beginning with are ignored loop 15 Ip rtc bonding If the bonding module is not there add the bonding keyword word into etc modules file Configure the network interfaces as an active and slave to the bonding interface using the following command sudo vi etc network interfaces The following example shows you to associate eth4 and eth5 as slaves to the bonding interface 40 In this example eth4 is the active interface eth5 is the slave interface This file describes the network interfaces available on your system and how to activate them For more information see interfaces 5 The loopback network interface auto lo iface lo inet loopback The primary network interface auto eth0 iface eth0 inet static address 172 16 14 119 netmask 255 255 255 0 network 172 16 14 0 broadcast 172 16 14 255 gateway 172 16 14 1 dns opt
7. python2 7 dist packages quantum plugins dell bin afm_generate_key sh u lt userid gt p lt newpassword gt This command updates the following afm_user_name and afm_user_key in etc quantum plugins dell dell_quantum_plugins ini file usr lib python2 7 dist packages quantum plugins dell common cipher_data ttt file which is used for encryption decryption of the password The AFM plug in uses this user created on the AFM server to log into AFM server to tag VLANs through Restful APIs Uninstalling the AFM Plug in for OpenStack The AFM Plug in is located atthe OpenStack Neutron plugins directory To uninstall the AFM Plug in restore the configuration files that you have changed and then remove the AFM plug in directory 1 Run the following command to stop the Dell Neutron plugin root dev1 openstack06 service quantum server stop 2 Modify the following statement by removing the line config file etc quantum plugins dell dell_quantum_plugins ini from the quantum server conf file located in the etc init directory exec start stop daemon start chuid quantum exec usr bin quantum server config file etc quantum quantum conf log file var log quantum server log CONF_ARG Restore the etc quantum quantum conf file Remove the etc quantum plugins dell directory and all the files in it Restore the etc quantum plugins openvswitch ovs_quantum_plugin ini file 27 28 10 Unins
8. registered trademark of Oracle Corporation and or its affiliates Citrix Xen XenServer and XenMotion are either registered trademarks or trademarks of Citrix Systems Inc in the United States and or other countries VMware vMotion vCenter vCenter SRM and vSphere are registered trademarks or trademarks of VMware Inc in the United States or other countries IBM is a registered trademark of International Business Machines Corporation 2013 12 Rev A0X Contents 1 AFM Plug in ita at 5 OpenStack Networking Deployment Use Cases sccscscsccsescesceessesseeseseecseseacsesceeseaeseseceeesaeesaeasacaeeeeeeeaeesanatanees 6 Supported Deployment Topologies sccsessscssesssssesesesesescsescseseseceeceeecaeecacseaeseseseeecaeeeacseaceeseaesesecetesaeesaeesaseenenees 7 Pre requisites for Using the 7 Key Considerations viii id di iaa doit 8 Using the AFM Plug in for OpenStack c scscscssscssssecesesescesseeceesceeeceeecaessseseseseeecaeecacaeacasseaeceseceeesaeeseeasaeaceeeeeenaneas 8 2 Step 1 Installing the AFM Pligg 9 Step 2 Configuring the AFM PIUQ iN ssssssssssssssssesecseesssssesessessessssaseseesssacsaeeacsaesaesass 11 4 Step 3 Optional Configuring Static Switch Server
9. switch connectivity The Dell OVS agent supports dynamic discovery of server switch connectivity on the Nova Compute Node or Network Node Dell recommends that you use dynamic discovery For information about dynamic discovery see Installing the LLDP Package To configure static server switch connectivity include the switch server binding information in the dell_quantum_plugins ini file in the etc quantum plugins dell directory Static Switch Server Connectivity Example The following static switch server connectivity example shows you how to add the PORT_MAPPING parameter to the dell_quantum_plugins ini file with the following topology e Compute node dev openstack05 connects to the switch with an IP address of 172 16 12 232 through port 0 22 e Compute node dev openstack03 connects to the switch with an IP address of 172 16 12 238 through port 0 22 e Network node dev openstack01 connects to the switch with an IP address of 172 16 12 232 through port 0 24 DELL_PLUGINS afm_plugin quantum plugins dell afm afm_plugin_v2 AFMPlugin vswitch_plugin quantum plugins openvswitch ovs_quantum_plugin OVSQuantumPluginV2 DELL model_class quantum plugins dell models virt_phy_sw_v2 VirtualPhysicalSwitchModelV2 static_config True network_node_hostname dev1 openstack01 PORT_MAPPING 172 16 12 232 dev openstack05 0 22 dev openstack01 0 24 PORT_MAPPING 172 16 12 238 dev openstack03 0 22 13 5 Step 4 Installing the LLDP and
10. Active Fabric Manager AFM Plug in for OpenStack Guide 2 0 Notes Cautions and Warnings NOTE NOTE indicates important information that helps you make better use of your computer CAUTION A CAUTION indicates either potential damage to hardware or loss of data and tells you howto avoid the problem IN WARNING A WARNING indicates a potential for property damage personal injury or death 2013 Dell Inc All Rights Reserved Trademarks used in this text Dell the Dell logo Dell Boomi Dell Precision OptiPlex Latitude PowerEdge PowerVault PowerConnect OpenManage EqualLogic Compellent KACE FlexAddress Force10 Venue and Vostro are trademarks of Dell Inc Intel Pentium Xeon Core and Celeron are registered trademarks of Intel Corporation in the U S and other countries AMD is a registered trademark and AMD Opteron AMD Phenom and AMD Sempron are trademarks of Advanced Micro Devices Inc Microsoft Windows Windows Server Internet Explorer MS DOS Windows Vista and Active Directory are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Red Hat and Red Hat Enterprise Linux are registered trademarks of Red Hat Inc in the United States and or other countries Novell and SUSE are registered trademarks of Novell Inc in the United States and other countries Oracle is a
11. he AFM User Credentials for the AFM Plug in The AFM server requires a user login for the AFM plug in to make Restful API calls to the AFM server for VLAN tagging and untagging Although the AFM plug in can use the superuser role to log into the AFM server and tag VLANs associated with Restful APIs on the AFM server we recommend that you create another user with an admin role instead of superuser role To create a user with an administrative role to make Restful API calls to the AFM server for VLAN tagging and untagging 1 Log onto AFM server using AFM server URL For example if the AFM server IP address is 172 16 4 23 type 172 16 4 23 as the URL from your browser 2 Go to Administration gt User Account screen 25 26 Add User Enter User Settings Click the Add User link From the Role pull down menu select the Admin option In the First Name and Last Name fields enter the name of the user In the User Name field enter the user name For example quantumuser In the Password field enter the password In the Confirm Password field confirm the password In the Sessions Allowed pull down menu select 5 for the number sessions allowed for the user For the remaining options Sessions Allowed Session Timeout Unsuccessful Login Limit and Lock Duration acceptthe default values Click OK to create the new user on the AFM server On the Nuetron server run the encryption scripts from the AFM plug in Hed usr lib
12. in the quantum server conf file as shown below exec start stop daemon start chuid quantum exec usr bin quantum server config file etc quantum quantum conf config file etc quantum plugins dell quantum server conf log file var log quantum server log CONF_ARG Make a backup copy of the quantum conf file This file is located in the etc quantum directory Navigate to the etc quantum directory and modify the quantum conf file with the following content core_plugin quantum plugins dell network_plugin PluginV2 In the etc quantum plugins dell directory create the dell_quantum_plugins ini file with the following content The default is to use dynamic port mapping LLDP and the parameter static_config is set false In this file also add the network_node_hostname with the network node hostname For example network_node_hostname dev1 openstack01 DELL_PLUGINS vswitch_plugin quantum plugins openvs afm_plugin quantum plugins dell afm afm_plugin_v2 AFMPlugin vswitch_plugin quantum plugins openvswitch ovs_quantum_plugin OVSQuantumPluginV2 DELL model_class quantum plugins dell models virt_phy_sw_v2 VirtualPhysicalSwitchModelV2 static_config False network_node_hostname dev1 openstack01 NOTE We recommend that you use dynamic port mapping Optional If you want to use static mapping set the static_config True and then add the port mapping entries using the PORT_MAPPING syntax The followi
13. installation guide from Openstack http docs openstack org cli quick start content index html To test the connectivity of VM instances on different compute nodes 1 each Nova Compute Node add the Nova Security Rule to allow the firewall to have access to ICMP and TCP nova secgroup add rule default icmp 1 1 0 0 0 0 0 nova secgroup add rule default tcp 22 22 0 0 0 0 0 2 The following configuration needs to be done after the Nova CLI is installed export OS_USERNAME admin export OS_PASSWORD password 23 24 export OS_TENANT_NAME admin export OS_AUTH_URL http localhost 5000 v2 0 Step 7 Connecting to the AFM Server To connect to the AFM server 1 Configure the AFM server IP address and port on the Openstack Controller node 2 Configure the AFM user credentials for the AFM Plug in on the AFM server Step 1 Configure the AFM server IP address and Port The AFM plug in requires that you configure the AFM server IP and port on the Openstack Controller node to connect to the AFM server for Restful API calls To connect to the AFM server from the Controller node On the Openstack Controller node modify the etc quantum plugins dell dell_quantum_plugins ini file so that it contains the following information e AFM server IP address e number Example Connecting to AFM Server from Openstack Controller Node AFM_REST_CLIENT afm_user_name afm_user_key host 172 16 4 221 port 443 Step 2 Configure t
14. ions are implemented by the resolvconf package if installed dns nameservers 10 162 168 102 dns search santanet dell com eth4 is manually configured and slave to the bond0 bonded NIC associated interface as a slave to the bonding0 interface auto eth4 iface eth4 inet manual bond master bond0 eth5 ditto thus creating a 2 link bond associated interface as a slave to the bonding interface auto eth5 iface eth5 inet manual bond master bond0 bond0 is the bonding NIC and be used like any other normal NIC bond0 is configured using static network information auto bond0 iface bond0 inet static address 192 168 1 10 gateway 192 168 1 1 netmask 255 255 255 0 bond mode 802 3ad bond miimon 100 bond lacp rate 1 bond slaves none 4 Restart the network service by rebooting the compute node at etc init d networking restart 5 After the reboot is complete verify the bonding interface by checking the proc net bonding directory The following example shows how to check the bond0 interface In this example the bonding mode and the slave interface eth4 and eth5 have a Status of Up root dev1 openstack03 etc network cat proc net bonding bond0 Ethernet Channel Bonding Driver v3 7 1 April 27 2011 Bonding Mode IEEE 802 3ad Dynamic link aggregation Transmit Hash Policy layer2 0 MII Status up MII Polling Interval ms 100 Up Delay ms 0 Down Delay ms 0 802 3ad info LACP rate fast Min
15. links 0 Aggregator selection policy ad_select stable Active Aggregator Info Aggregator ID 1 Number of ports 1 Actor Key 33 Partner Key 1 Partner Mac Address 00 00 00 00 00 00 Slave Interface eth4 MII Status up Speed 10000 Mbps Duplex full Link Failure Count 28 Permanent HW addr 00 10 18 d0 3d 60 Aggregator ID 1 Slave queue ID 0 Slave Interface eth5 MII Status up Speed 10000 Mbps Duplex full Link Failure Count 28 Permanent HW addr 00 10 18 d0 3d 62 Aggregator ID 2 Slave queue ID 0 6 Step 5 Installing the Dell OVS Agent The Dell OVS Agent supports dynamic discovery of Server Switch connections using LLDP To use the Dell OVS agent install it on the nova compute nodes and network node To install the Dell OVS Agent on the nova compute nodes and network nodes 1 Obtain the AFM Plug in for Openstack tar file AFMOpenStackPlugin2 0 0 0 tar gz from iSupport On each Nova compute node and network node go to usr lib python2 7 dist packages At the usr lib python2 7 dist packages directory untar the file using the following command tar zxvf AFMOpenStackPlugin2 0 0 0 tar gz command The files are put in the usr lib python2 7 dist packages quantum plugins directory 4 After you have untar the file make a backup file of usr bin quantum openvswitch agent Then copy the usr lib python2 7 dist packages quantum plugins dell bin quantum openvswitch agent to the usr bin directory
16. ng example shows how to add port mapping entries PORT_MAPPING lt switch1 ip gt lt hostl ip gt lt switch port1 gt lt host2 ip gt lt switch port2 gt lt host3 ip gt lt switch port5 gt PORT_MAPPING lt switch2 ip gt lt hostl ip gt lt switch port1 gt lt host2 ip gt lt switch port2 gt lt host3 ip gt lt switch port5 gt Step 2 Configuring the AFM Plug in To configure the OpenVSwitch to support the AFM Plug in 1 On the Controller where the Neutron server is located set the parameter in the ovs_quantum_plugin ini file in the etc quantum plugins openvswitch directory as shown in the following example sql_connection mysaql lt username gt lt password gt lt mysq _host gt ovs_quantum charset utf8 2 Set the OpenVSwitch plugin to the VLAN mode and the range of VLAN for each network as shown in the following example tenant_network_type vlan enable_tunneling False network_vlan_ranges default lt vlan_min gt lt vlan_max gt 3 Restart the Neutron server root dev1 openstack06 service quantum server restart For more information about configuring OpenVSwitch plugin see the Openstack Network Admin Guide at http docs openstack org trunk openstack network admin content index html 11 Step 3 Optional Configuring Static Switch Server Connectivity The AFM Plug in supports dynamic discovery of server switch connectivity using LLDP and static configuration of server
17. or information about how to create a port bonding see the Configuring Port Bonding section Step 2 Configuring the Dell OVS Plug in To configure the dell_ovs_quantum_plugin ini file 1 each compute node and network node add the following content into the OVS section of the dell_ovs_quantum_plugin ini file OVS bridge_mappings default br bond0 network_vlan_ranges default 1000 1100 tenant_network_type vlan 21 2 Ifthe interfaces for the bridge are not operational on each Nova compute node and network node run the following command to bring up all the Ethernet ports and physical bridges ifconfig interface up For example on a Nova Compute Node and network node with eth4 and eth5 connected to switches execute the following commands to ensure that eth5 and eth4 are operational ifconfig a eth5 up ifconfig a eth4 up Step 3 Configuring the Rootwrap The Dell OVS agent uses the Ubuntu shell command which requires that you configure the Neutron Rootwrap To configure the Neutron Rootwrap 1 On the Nova Compute and Network Nodes navigate to the etc quantum plugins dell agent dell_ovs_quantum_plugin ini directory 2 Inthe dell_ovs_quantum_plugin ini file search for the keyword AGENT 3 Add the following line under the AGENT section AGENT root_helper sudo usr bin quantum rootwrap etc quantum rootwrap conf 4 Navigate to the etc quantum directory In the rootwrap conf file search f
18. or the DEFAULT keyword 6 Add the following line under DEFAULT section DEFAULT root_helper sudo usr bin quantum rootwrap etc quantum rootwrap conf 7 Navigate to the etc quantum rootwrap d openvswitch plugin filters directory 8 Inthe openvswitch plugin filters file add the hostname and lldpctl commands to the file as shown in the following example quantum rootwrap command filters for nodes on which quantum is expected to control network This file should be owned by and only writeable by the root user format seems to be cmd name filter name raw command user args Filters openvswitch agent unclear whether both variants are necessary but m transliterating from the old mechanism ovs vsctl CommandFilter bin ovs vsctl root ovs vsctl_usr CommandFilter usr bin ovs vsctl root ovs vsctl_sbin CommandFilter sbin ovs vsctl root ovs vsctl_sbin_usr CommandFilter usr sbin ovs vsctl root ovs ofctl CommandFilter bin ovs ofctl root ovs ofctl_usr CommandFilter usr bin ovs ofctl root 22 ovs ofctl_sbin CommandFilter sbin ovs ofctl root ovs ofctl_sbin_usr CommandFilter usr sbin ovs ofctl root CommandFilter sbin xe root xe_usr CommandFilter usr sbin xe root hostname CommandFilter bin hostname root CommandFilter usr sbin lldpctl root ip_lib ip IpFilter sbin ip root ip_usr IpFilter usr sbin ip root ip_exec IpNetnsExecFilter sbin ip root
19. plug in is supported with fabrics that have 10 Gb Access switches Using the AFM Plug in for OpenStack To use the AFM plug in for OpenStack 1 go oO DS Install the AFM software and start it Deploy the physical fabric network using the AFM Install OpenStack Install and configure the AFM plug in for OpenStack onto the OpenStack Controller node Install the LLDP package for dynamic discovery of server switch connectivity and Port Bonding in the compute and network node Install and configure the Dell OVS Agent in the compute and network node Configure the OpenStack Neutron server and the AFM plug in Use the OpenStack GUI to create network and VM instances Step 1 Installing the AFM Plug in To install the AFM plug in for Openstack onto the Controller node where the Neutron server is located 1 Obtain the AFM Plug in for Openstack tar file AFMOpenStackPlugin2 0 0 0 tar gz from iSupport See the Release Notes On the Openstack server go to the usr lib python2 7 dist packages directory Untar the AFMOpenStackPlugin2 0 0 0 tar gz file using the following syntax tar zxvf AFMOpenStackPlugin2 0 0 0 tar gz After you untar this file the AFM plug in is located at the usr lib python2 7 dist packages quantum plugins directory Make a backup copy of the quantum server conf file The file is located at the etc init directory Add the config file etc quantum plugins dell dell_quantum_plugins ini statement
20. seeserseees 25 Step Configure the AFM server IP address and POrt c ccsccsescseseeseseseceeesesescseseseseseseseceeecaeesaeasaeseeecatenanaeanes 25 Step 2 Configure the AFM User Credentials for the AFM PIUQ in s sssssescsescsescesseeseeeeeeseseeeaeseacseseaeeeeseeeeses 25 9 Uninstalling the AFM Plug in for 4 4 44 41120 1 0 04041 444 4840 4 084 27 10 Uninstalling the Dell OVS 22 2 2 4220 0414 300400 29 AFM Plug in Overview Use the Active Fabric Manager AFM plug in for OpenStack to configure VLAN interfaces on the Dell Force10 Network switches to orchestrate virtual networks through the AFM Restful APIs The AFM plug in enables you to configure VLANs for a Layer 2 fabric which is created by AFM administrators It delegates the physical network configuration logic to the AFM server by making requests to the AFM server through AFM Restful APIs Upon receiving requests from the OpenStack server restful API the Dell Open vSwitch OVS agent and AFM plug in create and maintain the logical port infrastructure for the administrator to tag and untag VLANs There are 3 components to managing the physical virtual networks and bridges The first component AFM manages the physical network The second and third components the Dell OVS agent and AFM Plug in for OpenStack manages the virtual networks and bridges The AFM Plug in runs on
21. subnet s associated with that network Multiple Flat Network VMs share the same shared network and can talk to each other and to VMs in other shared networks and to external networks through the physical router This use case is very similar to the above Single Flat Network use case except that tenants see multiple shared networks via the OpenStack Networking API and can choose which network or networks to plug into Mixed Flat and Private Network All VMs can talk to each other through the shared network and to external networks through the physical router VMs in a Tenant Private Network can talk to each other but not to other Tenant Private Networks or external This use case is an extension of the above flat network use cases in which tenants also optionally have access to private per tenant networks In addition to seeing one or more shared networks via the OpenStack Networking API tenants can create additional networks that are only visible to users of that tenant When creating VMs those VMs can have NICs on any of the shared networks and or any of the private networks belonging to the tenant This enables the creation of multi tier topologies using VMs with multiple NICs It also supports a model where a VM acting as a gateway can provide services such as routing NAT or load balancing Supported Deployment Topologies The AFM Plug in supports the following topologies Six S4810 switches with two aggregation nodes and four access
22. talling the Dell OVS Agent To uninstall the Dell OVS agent 1 2 3 4 Run the service quantum plugin openvswitch agent stop command Restore the usr bin quantum openvswitch agent file from the backup Restore the etc init quantum plugin openvswitch agent conf file Remove the etc quantum plugins dell directory and all the files in it 29
23. the controller The Dell OVS agent runs on a Nova compute and network node The AFM plug in does the following e Plugs into the standard OpenStack Pluggable Networking Architecture e Allows the OpenStack Neutron server to communicate with AFM server e Integrates with the DELL AFM Active Fabric Manager through Restful APIs Provides dynamic VLAN configuration to fulfill OpenStack Cloud services Networking requirements e Provides dynamic discovery of Switch Server connections through LLDP e Integrates with the AFM Layer 2 VLT topology to achieve switch server connection redundancy using Port Bonding AFM Server Rest Controller Openstack Networking Restful API Nova Network Openstack Networking Server Nova Compute LibvirtOVSDriver Open vSwitch ia ns sure Z AFM Server Restful API 4810 4810 AFM Network Services Monitoring Other Runtime Services Manages OpenStack Networking Deployment Use Cases The AFM plug in supports the following OpenStack use cases 1 Single Flat Network All VMs can talk to each other via the shared network and to external network through the physical route In the simplest use case a single OpenStack Networking network exists This is a shared network meaning it is visible to all tenants through the OpenStack Networking API Tenant VMs have a single NIC and receive a fixed IP address from the
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