NEC N8406-022A - Manual (Page 23)

Browser-based interface 23
Trunk Group configuration
On the BBI, choose System Settings > Uplink/Group to enable or disable the Link Aggregation Control Protocol.
When enabled, the external ports are configured as a LACP trunk group. When disabled, they are configured as a
static trunk group. The default is disabled.
Failover
The primary application for Failover is to support Network Adapter Teaming. With Network Adapter Teaming, the
NICs on each server all share the same IP address, and are configured into a team. One NIC is the primary link,
and the other is a standby link.
Failover is enabled by default. You can enable or disable Failover on a Port Group. When enabled, Failover works
as follows.
•
If some (or all) of the links fail in the failover trigger, the SmartPanel disables all internal ports of the Port
Group. When the internal ports are disabled, it causes the NIC team on the affected server blade to failover
from the primary to the backup NIC. This process is called a failover event.
•
When the appropriate links return to service, the SmartPanel enables the internal ports of the Port Group.
This causes the NIC team on the affected server blades to fail back to the primary SmartPanel (unless Auto-
Fallback is disabled on the NIC team). The backup processes traffic until the primary’s internal links come up,
which takes up to five seconds.
The failover limit lets you specify the minimum number of operational links required within the failover trigger before
the trigger initiates a failover event. For example, if the limit is four, a failover event occurs when the number of
operational links in the trigger is four or fewer. When you set the limit to all, the SmartPanel triggers a failover event
only when no links in the trigger are operational. The default is all.