H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 184)

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Configuring portal stateful failover
NOTE:
Support for this feature depends on the device model. For more information, see About the WX Series
Access Controllers Configuration Guides.
To implement stateful failover for portal, you must configure VRRP or dynamic routing such as OSPF for
traffic switchover, and perform the following configurations for service backup on each of the two devices
that back up each other:
• Specify an interface for backing up portal services, which is called portal service backup interface
in this document, and enable portal on the portal service backup interface. The portal service
backup interface is different from the stateful failover interface. Stateful failover interfaces only
forward state negotiation messages and backup data.
• Specify the portal group to which the portal service backup interface belongs. Be sure to specify the
same portal group for the portal service backup interfaces that back up each other on the two
devices.
• Specify the device ID. Make sure that the device ID of the local device is different from that of the
peer device.
• Specify the backup source IP address for outgoing RADIUS packets as the source IP address for
RADIUS packets that is configured on the peer device, so that the peer device can receive packets
from the server. (This configuration is optional.)
• Specify the stateful failover interface, and enable stateful failover on the interface. For related
configuration, see High Availability Configuration Guide.
After the operating state of the two devices changes from independence to synchronization and the
portal group takes effect, the two devices start to back up the data of online portal users for each other.
CAUTION:
•
Specifying or changing the device ID of a device also logs off all online users on the device. Therefore,
perform the configuration only when necessary and, after the configuration, save the configuration and
restart the device.
• When two devices are running in stateful failover mode (one active, the other standby), do not delete the
configured backup source IP addresses. Otherwise, online users on the backup may not be able to
receive packets from the server.
To configure stateful failover:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A