IP Network Multipathing provides your system with the following capabilities:
Recovery from single-point failures with network adapters
Increased traffic throughput
If a failure occurs in the network adapter, and if you have an alternate adapter connected to the same IP link, the system switches all the network accesses automatically from the failed adapter to the alternate adapter. This process ensures uninterrupted access to the network. Also, when you have multiple network adapters that are connected to the same IP link, you achieve increased traffic throughput by spreading the traffic across multiple network adapters.
Other IP-related documents, such as RFC 2460, use the term link instead of IP link. This document uses the term IP link to avoid confusion with IEEE 802. In IEEE 802, link refers to a single wire from an Ethernet NIC to an Ethernet switch.