RackSwitch G8000 Application Guide
Uplink Failure Detection
Uplink Failure Detection (UFD) is designed to support Network Adapter Teaming. Network Adapter Teaming allows all the NICs on each server to share the same IP address. The NICs are configured into a team. One NIC is the primary link, and the other is a standby link.
UFD allows the switch to monitor specific ports (Link to Monitor ports) to detect link failures. When the switch detects a link failure, it automatically disables specific ports (Link to Disable ports). Each corresponding server’s network adapter can detect the disabled port, and trigger a
The switch automatically enables the control ports when the monitor ports return to service.
The following figure shows a basic UFD configuration, with a Failure Detection Pair (FDP) that consists of one LtM (Link to Monitor) and one LtD (Link to Disable). When the switch detects a link failure in the LtM, it disables the ports in the LtD. The servers detect the disabled ports, which triggers a NIC failover.
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Figure 10-1 Uplink Failure Detection example
136 Chapter 10: High Availability | BMD00041, November 2008 |
