2009.10.5 ip load-sharing

ip load-sharing

To enable load balancing for Cisco Express Forwarding (CEF), use the ip load-sharing command in interface configuration mode.

ip load-sharing [per-packet] [per-destination]

預設是per-destination, 所以sh run是看不到

使用此功能時,記得CEF要開

Usage Guidelines

Per-packet load balancing allows the router to send data packets over successive equal-cost paths without regard to individual destination hosts or user sessions. Path utilization is good, but packets destined for a given destination host might take different paths and might arrive out of order.

Per-destination load balancing allows the router to use multiple, equal-cost paths to achieve load sharing. Packets for a given source-destination host pair are guaranteed to take the same path, even if multiple, equal-cost paths are available. Traffic for different source-destination host pairs tend to take different paths.

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Note If you want to enable per-packet load sharing to a particular destination, then all interfaces that can forward traffic to the destination must be enabled for per-packet load sharing.