Administrator's Guide

7 Team configuration
Standalone controller operation provides management for the OpenFlow switches in a network.
However, it does not provide high availability (HA), with the result that a controller failure leaves
the network in an unmanaged state. Configuring a team of controllers and a corresponding
controller region creates a high availability network with failover capability, resulting in a
continuously managed network in the event that a controller in the team goes down. Controller
teaming also provides centralized controller configuration and monitoring. This chapter describes
how to configure a controller team. See “Regional configuration ” (page 88) to configure a region
for a controller team.
NOTE: Teaming operation requires the High Availability “Add Controller” license (HP VAN SDN
Ctrl HA E-LTU). For licensing information, see “License registration and activation process” (page 52).
7.1 High availability
The default configuration of the SDN Controller is the system’s eth0 interface. When a controller
team is formed via REST with the team IP Address, an alias will be configured automatically by
the system and will attach to the eth0 interface by default. If the SDN Controller has multiple Ethernet
interfaces a different interface can be required for the team IP Address. In this case the configuration
/etc/sdn/admin/options may be changed using vim or emacs to reflect the desired configuration.
sdncontroller:/opt/sdn/admin# cat options
export ADMIN_OPTS="-Dcom.hp.sdn.admin.interface=eth0"
Once the change has been made, the SDNA service must be restarted as shown with the following
command.
sdncontroller:/opt/sdn/admin# service sdna restart
sdna stop/waiting
This change must be made for every active controller within the team and does not require that
the team to be deleted via REST.
To view the team IP Address designation from the SDN Controller console or SSH session, use
ifconfig.
sdncontroller:$ ifconfig
eth0 Link encap:Ethernet HWaddr ac:16:2d:9a:62:60
inet addr:172.17.3.17 Bcast:172.17.15.255 Mask:255.255.240.0
inet6 addr: fe80::ae16:2dff:fe9a:6260/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1151070 errors:0 dropped:284 overruns:0 frame:0
TX packets:1134356 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:684988786 (684.9 MB) TX bytes:882495744 (882.4 MB)
Memory:f7f80000-f8000000
eth0:0 Link encap:Ethernet HWaddr ac:16:2d:9a:62:60
inet addr:172.17.3.41 Bcast:172.17.15.255 Mask:255.255.240.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Memory:f7f80000-f8000000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:116581 errors:0 dropped:0 overruns:0 frame:0
TX packets:116581 errors:0 dropped:0 overruns:0 carrier:0
7.1 High availability 79