H3C Technologies H3C SecBlade LB Cards - Manual (Page 92)

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failure. To avoid this problem, H3C recommends you to check that the configurations on the active
and standby devices are consistent before configuration synchronization.
• If you click Modify Backup Interface before clicking Apply, the configurations you have made on
the stateful failover configuration page are lost.
• An intermediary device (such as a router, a switch, or a hub) is allowed between the failover
interfaces. Make sure the packets forwarded by the intermediary device carry the backup VLAN
tag.
• Do not directly connect two failover interfaces on the same stateful failover device.