Once you have set up and started the virtual machines (VMs) for the vSmart controllers in your overlay network, they come up with a factory-default configuration. You then need to manually configure a few basic features and functions so that the devices can be authenticated and verified and can join the overlay network. These features include the IP address of your network's vBond orchestrator, the device's system IP address, and a tunnel interface in VPN 0 to use for exchanging control traffic among the network controller devices (the vBond, vManage, and vSmart devices).
For the overlay network to be operational and for the vSmart controllers to participate in the overlay network, you must do the following:
- Configure a tunnel interface on at least one interface in VPN 0. This interface must connect to a WAN transport network that is accessible by all Viptela devices. VPN 0 carries all control plane traffic among the Viptela devices in the overlay network.
- Ensure that the Overlay Management Protocol (OMP) is enabled. OMP is the protocol responsible for establishing and maintaining the Viptela control plane. It is enabled by default, and you cannot disable it. When you edit the configuration from the CLI, do not remove the omp configuration command.
You create these initial configuration by using SSH to open a CLI session to the the vSmart controller.
After you have created the initial configuration, you create the full configuration by creating configuration templates on the vManage NMS and then attaching them to the vSmart controllers. When you attach the configuration template to the vSmart controllers, the configuration parameters in the templates overwrite the initial configuration.
In this initial configuration, you should assign a system IP address to the vSmart controller. This address, which is similar to the router ID on non-Viptela routers, is a persistent address that identifies the controller independently of any interface addresses. The system IP is a component of the device's TLOC address. Setting the system IP address for a device allows you to renumber interfaces as needed without affecting the reachability of the Viptela device. Control traffic over secure DTLS or TLS connections between vSmart controllers and vEdge routers and between vSmart controllers and vBond orchestrators is sent over the system interface identified by the system IP address. In the transport VPN (VPN 0), the system IP address is used as the device's loopback address. You cannot use this same address for another interface in VPN 0.
Note: For the overlay network to function properly and predictably, the policies configured on all vSmart controllers must be identical.
Create Initial Configuration for the vSmart Controller
To create the initial configuration on a vSmart controller from a CLI session:
- Open a CLI session to the Viptela device via SSH.
- Log in as the user admin, using the default password, admin. The CLI prompt is displayed.
- Enter configuration mode:
- Configure the hostname:
Viptela(config)# system host-name hostname
Configuring the hostname is optional, but is recommended because this name in included as part of the prompt in the CLI and it is used on various vManage NMS screens to refer to the device.
- Configure the system IP address. In Releases 16.3 and later, the IP address can be an IPv4 or an IPv6& address. In earlier releases, it must be an IPv4 address.
vSmart(config-system)# system-ip ip-address
The vManage NMS uses the system IP address to identify the device so that the NMS can download the full configuration to the device.
- Configure the numeric identifier of the site where the device is located:
vSmart(config-system)# site-id site-id
If you configure a vSmart controller as a container in a vContainer host, you must assign each vSmart controller within an organization a unique site ID. This is required because the private IP address of a vSmart controller in a vContainer host is not accessible outside the vContainer host.
- Configure the numeric identifier of the domain in which the device is located:
vSmart(config-system)# domain-id domain-id
- Configure the IP address of the vBond orchestrator or a DNS name that points to the vBond orchestrator. The vBond orchestrator's IP address must be a public IP address, to allow all Viptela devices in the overlay network to reach it.
vSmart(config-system)# vbond (dns-name | ip-address)
- Configure a time limit for confirming that a software upgrade is successful:
vSmart(config-system)# upgrade-confirm minutes
The time can be from 1 through 60 minutes. If you configure this time limit, when you upgrade the software on the device, the vManage NMS (when it comes up) or you must confirm that a software upgrade is successful within the configured number of minutes. If the device does not received the confirmation within the configured time, it reverts to the previous software image.
- Change the password for the user "admin":
vSmart(config-system)# user admin password password
The default password is "admin".
- Configure an interface in VPN 0 to be used as a tunnel interface. VPN 0 is the WAN transport VPN, and the tunnel interface carries the control traffic among the devices in the overlay network. The interface name has the format ethnumber. You must enable the interface and configure its IP address, either as a static address or as a dynamically assigned address received from a DHCP server. In Releases 16.3 and later, the address can be an IPv4 or an IPv6 address, or you can configure both to enable dual-stack operation. In earlier releases, it must be an IPv4 address.
vSmart(config)# vpn 0
vSmart(config-vpn-0)# interface interface-name
vSmart(config-interface)# (ip dhcp-client | ip address prefix /length)
vSmart(config-interface)# (ipv6 address ipv6-prefix/length | ipv6 dhcp-client [dhcp-distance number | dhcp-rapid-commit])
vSmart(config-interface)# no shutdown
vSmart(config-tunnel-interface)# allow-service netconf
Note: You must configure a tunnel interface on at least one interface in VPN 0 in order for the overlay network to come up and for the vSmart controller to be able to participate in the overlay network. This interface must connect to a WAN transport network that is accessible by all Viptela devices. VPN 0 carries all control plane traffic among the Viptela devices in the overlay network.
- Configure a color for the tunnel to identify the type of WAN transport. You can use the default color (default), but you can also configure a more appropriate color, such as mpls or metro-ethernet, depending on the actual WAN transport.
vSmart(config-tunnel-interface)# color color
- Configure a default route to the WAN transport network:
vSmart(config-vpn-0)# ip route 0.0.0.0/0 next-hop
- Commit the configuration:
vSmart(config)# commit and-quit
- Verify that the configuration is correct and complete:
vSmart# show running-config
After the overlay network is up and operational, create a vSmart configuration template on the vManage NMS that contains the initial configuration parameters. Use the following vManage feature templates:
- System feature template to configure the hostname, system IP address, and vBond functionality.
- AAA feature template to configure a password for the "admin" user.
- VPN-Interface-Ethernet feature template to configure the interface and default route in VPN 0.
Configure General System Parameters
When you are creating the initial vSmart configuration, you may also want to configure the following general system parameters from the CLI:
- Configure the organization name, which is the name that is included in the certificates on all devices in the overlay network. This name must be the same on all devices.
vSmart(config-system)# organization-name name
- Configure the timezone, NTP servers, and physical location. See the Configuring Time and Location article for your software release.
- Configure a login banner, which is text that is displayed before the login prompt, and configure a general banner, which is text displayed after a user successfully logs in. The text strings can be up to 2048 characters. Use \n to insert line breaks.
vSmart(config)# banner login "text"
vSmart(config)# banner motd "text"
- Modify the logging parameters for syslog messages. By default, syslog messages are always logged to the local hard disk. All syslog messages above the "informational" priority value are stored in the file /var/log/vsyslog, and all debug messages for modules whose debugging is turned on, and all syslog messages above the configured priority value are saved to the file /var/log/tmplog/vdebug. Syslog files are rotated when the file size reaches 10 MB, and the last 10 files are retained. You can modify the priority value or the file rotation information:
vSmart(config-system)# logging disk
vSmart(config-logging)# priority priority
vSmart(config-logging)# size megabytes
vSmart(config-logging)# rotate number
You can also log syslog messages to one or more remote hosts reachable in one of the VPNs in the overlay network:
vSmart(config-system)# logging server (dns-name | hostname | ip-address)
vSmart(config-server)# priority priority
vSmart(config-server)# vpn vpn-id
- Configure AAA, and RADIUS and TACACS+ servers. See the Configuring User Access and Authentication article for your software release.
- Configure SNMP. See the Configuring SNMP article for your software release.
- Configure a DNS server for VPN 0. See the Configuring Segmentation (VPNs) article for your software release.
- Commit the configuration:
vSmart(config)# commit and-quit
After the overlay network is up and operational, create a vBond configuration template on the vManage NMS that contains the initial configuration parameters. Use the following vManage feature templates:
- System feature template to configure the organization name, NTP servers, timezone, physical location, banners, and system logging.
- AAA feature template to configure AAA parameters.
- VPN feature template to configure a DNS server for VPN 0.
Sample Initial CLI Configuration
Below is an example of a simple configuration on a vSmart controller. Note that this configuration includes a number of settings from the factory-default configuration and shows a number of default configuration values.
vSmart# show running-config system host-name vSmart gps-location latitude 40.7127837 gps-location longitude -74.00594130000002 system-ip 172.16.240.172 site-id 200 organization-name "Viptela Inc" clock timezone America/Los_Angeles upgrade-confirm 15 vbond 220.127.116.11 aaa auth-order local radius tacacs usergroup basic task system read write task interface read write ! usergroup netadmin ! usergroup operator task system read task interface read task policy read task routing read task security read ! user admin password encrypted-password ! ! logging disk enable ! server 192.168.48.11 vpn 512 priority warm exit ! ! omp no shutdown graceful-restart ! snmp no shutdown view v2 oid 18.104.22.168 ! community private view v2 authorization read-only ! trap target vpn 0 10.0.1.1 16662 group-name Viptela community-name private ! trap group test all level critical major minor exit exit ! vpn 0 interface eth1 ip address 10.0.12.22/24 tunnel-interface color public-internet allow-service dhcp allow-service dns allow-service icmp no allow-service sshd allow-service netconf no allow-service ntp no allow-service stun ! no shutdown ! vpn 512 interface eth0 ip dhcp-client no shutdown ! !