3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 1 IP Routing Protocol Overview3Com Corporation1-61.3 Configuring Bandwidth-Based Unbalanced Load SharingIn general, the technology of load sharing is to send packets evenly to differentinterfaces. For example, with load sharing, a flow of 3 Mbps is evenly sent to twointerfaces, that is, 1.5 Mbps for each interface. This will result in low utilization on theinterface with larger bandwidth and packet dropping on the interface with smallerbandwidth.To improve bandwidth utilization, more packets should be sent to the interfaces withlarger bandwidth, while fewer packets should be sent to the interfaces with lessbandwidth, so as to implement unbalanced load sharing based on the interfacebandwidth of the equal-cost routes. If the system supports this feature, load sharing isimplemented based on physical bandwidth by default. If the user has configuredspecified bandwidth, load sharing will be implemented according to the specifiedbandwidth.1.3.1 Enabling Bandwidth-Based Unbalanced Load SharingPerform the following configuration in system view.Table 1-2 Enable bandwidth-based unbalanced load sharingOperation CommandEnable bandwidth-based unbalancedload sharing band-based-sharingDisable bandwidth-based unbalancedload sharing undo band-based-sharingBy default, bandwidth-based unbalanced load sharing is disabled.Note:As bandwidth-based unbalanced load sharing does not support per-flow load sharing,you must disable fast forwarding on the incoming or outgoing interface when using thefunction.1.3.2 Assigning Bandwidth to an InterfacePerform the following configuration in interface view.
