HP LeftHand P4000 Virtual SAN Appliance Software - Manual (Page 62)

Table 22 Link aggregation dynamic mode failover scenario and corresponding NIC status
NIC status Example failover scenario
1. Link Aggregation Dynamic Mode bond0 is created.
Eth0 and Eth1 are both active. •
Bond0 is the master logical interface.
•
Eth0 is Active.
•
Eth1 is Active.
2. Eth0 interface fails. Because Link Aggregation Dynamic
Mode is configured, Eth1 continues operating. •
Eth0 status becomes Passive (Failed).
• Eth1 status remains Active.
3. Eth0 link failure is repaired. • Eth0 resumes Active status.
•
Eth1 remains Active.
Summary of NIC states during failover
Table 23 (page 62) shows the states of Eth0 and Eth1 when configured for Link Aggregation
Dynamic Mode.
Table 23 NIC status during failover with link aggregation dynamic mode
Status of Eth1 Status of Eth0 Failover status
Preferred: No Preferred: No Normal Operation
Status: Active Status: Active
Data Transfer: Yes Data Transfer: Yes
Preferred: No Preferred: No Eth0 Fails, Data Transfer Fails Over to
Eth1
Status: Active Status: Passive (Failed)
Data Transfer: Yes Data Transfer: No
Preferred: No Preferred: No Eth0 Restored
Status: Active Status: Active
Data Transfer: Yes Data Transfer: Yes
Example network cabling topologies with link aggregation dynamic mode
A simple network configuration using Link Aggregation Dynamic Mode in a high-availability
environment is illustrated in
Figure 28 (page 63) .
62 Managing the network