Kingston Technology KNS3250/R manual Load Balancing Method, Trunk Selection, Trunk Port Assignment

Page 21

16

Kingston Switch Configuration Utility

Load Balancing Method

In a multiple link trunk, the links within a trunk should have an equal amount of trafc in order to achieve maximum efciency. Thus, some sort of load balancing amongst the links of a trunk must be deployed. The Kingston KNS1650/R, 2450/R, and 3250/R switches support MAC address based and port based balancing methods. Using these methods, any packet with a trunk destination received by the switch can be forwarded to a proper trunk port. After choosing one method, the user must specify the relative load-balancing mapping to complete the conguration of the trunk port load balancing.

Trunk Selection, Trunk Port Assignment

Place checkmarks in the boxes of the desired trunk and check the desired trunk port assignments per trunk.

Trunk: A Trunk is a group of Trunk Ports grouped together.

Port Based Trunk: Each Port Based Trunk may have 2, 3, or 4 Trunk Ports.

MAC Address Based Trunk: Each MAC Address Based Trunk must contain 4 Ports.

Trunk Ports: A port assigned to a Trunk. The Trunk Ports are setup in groups of 4 and must be selected based on the groups. For example, Trunk 1 can only contain Trunk Ports 1, 2, 3, or 4.

Load Balancing Mapping - MAC Address Based

When the switch receives a packet with a trunk destination, it will automatically forward the packet to a trunk port based on the source MAC address (SA) and destination MAC address (DA) of the packet. The device uses two bits from SA and DA to map to four trunk ports.

The user can select which two bits should be used for mapping:

[1:0] Uses bit 1 and 0 for mapping.

[3:2] Uses bit 3 and 2 for mapping.

[5:4] Uses bit 5 and 4 for mapping.

[7:6] Uses bit 7 and 6 for mapping.

Each MAC Address contains 6 bytes of data, the last byte is taken from the source MAC address (SA) and the last byte from the destination MAC address (DA). Each byte contains 8 bits of data and the user can determine which two bits of the last byte are used to map the trunk port. See the example on the following page:

Kingston Technology Company

KNS3250/R User’s Guide - Rev. A00

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Models KNS1650/R KNS2450/R KNS3250/R KNS3250/R Users Guide Rev. A00 Wichtige Sicherheitshinweise Important Safety InstructionsTable of Contents Kingston Technology Company Introduction Model Types Special FeaturesPackage Contents Switching Function Design FeaturesLink Trunking Auto-NegotiationStore-and-Forward Switching Full-DuplexFlow Control Hardware Installation Power LEDLink / Activity LED Full Duplex and Collision LED AC Power ConnectorFiber FX module port optional 10/100TX UTP PortsSwitch Conguration Utility Software InstallationDevice Conguration Main Screen FilePrinter Port I/O Address Device TypeKingston Switch Configuration Utility System Device Conguration PropertiesSuperMAC Aging ControlAging Time Broadcast Storm Control ThresholdDescription Port Port SelectionSecurity Address Learning Duplex ModeBroadcast Storm Control Full Duplex Flow ControlTrunk Assignment Load Balancing Method Trunk Selection, Trunk Port AssignmentLoad Balancing Mapping MAC Address Based Last byte of source MAC address SA Load Balancing Mapping Port Based Flood Control VlanVlan Group Kingston Switch Configuration Utility Explicit Address Table Explicit Address TableKingston Switch Configuration Utility Editing a Conguration File Using the Switch Conguration UtilitySending the Current Conguration to the Switch Kingston Technology Company Vlan #1 Engineering Assigning Trunks and Setting Vlan GroupsKingston Technology Company Kingston Switch Configuration Utility Kingston Technology Company Kingston Switch Configuration Utility Kingston Technology Company Data cannot be read from or written to the device TroubleshootingKingston Technology Company Appendices UTP Port Pin Assignments Appendix a Pin AssignmentsUTP Cable Wiring Appendix B Cabling GuidelinesUTP Cable Type Table B-4 4-Pair T568A Wiring UTP Cable Wiring StandardsTerms You Should Be Familiar With UTP Cable Rating CodesAppendix C Specications Environmental KNS150FX/SC Appendix D Fiber FX Modules & InstallationInstalling the ber module Appendix E Mounting Templates Rubber Feet for DesktopsBrackets for Rack Mounting Limited Warranty Statement Duration of WarrantyAppendix F Warranties and Notices Warranty Claim Requirements Free Technical SupportDisclaimers C. Certication CE NoticeTick Certication
Top Page Image Contents