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Summary of Contents for Digital Equipment SmartSwitch SmartMIM-216
- Page 1 SmartTrunk User’s Guide 9032680...
- Page 3 Notice Notice Cabletron Systems reserves the right to make changes in speciÞcations and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, Þrmware, or software described in this manual is subject to change without notice.
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Page 4: Fcc Notice
Notice FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. -
Page 5: Declaration Of Conformity Addendum
Declaration of Conformity Application of Council Directive(s): ManufacturerÕs Name: ManufacturerÕs Address: European Representative Name: European Representative Address: Conformance to Directive(s)/Product Standards: Equipment Type/Environment: We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged with this notice conforms to the above directives. Mr. - Page 6 Notice...
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Page 7: Table Of Contents
Chapter 1 Introduction SmartTrunking... 1-1 Packet Distribution ... 1-2 Compatibility - DEC Hunt Groups and GigaSwitch Router (GSR) ... 1-3 Chassis with Multiple SmartTrunk Groups ... 1-3 SmartTrunk and Port Connections ... 1-4 Correspondence ... 1-7 Chapter 2 SmartTrunk Configuration SmartTrunk ConÞguration Rules... - Page 8 Contents...
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Page 9: Chapter 1 Introduction
SmartTrunk divides network trafÞc across multiple ports in parallel to provide additional throughput. The SmartTrunk application can be used with any of DigitalÕs MultiSwitch 700 switch modules (except ATM modules). SmartTrunking A physical port conÞgured in a SmartTrunk Group must: ¥... -
Page 10: Packet Distribution
Introduction Packet Distribution Packet distribution is based on hardware family type: MultiSwitch 700 Packet distribution among the ports in the group is accomplished by adding the destination and source MAC addresses and then applying the modulus operator to the sum using the number of active ports in the group. The remainder, which falls into the range of the number of ports in the group, will dictate which port will be used by the address. -
Page 11: Compatibility - Dec Hunt Groups And Gigaswitch Router (Gsr)
Compatibility - DEC Hunt Groups and GigaSwitch Router (GSR) SmartTrunking for the MultiSwitch 700 is based on, and compatible with, DEC Hunt Groups. Adopting the DEC Hunt Groups protocol allows the MultiSwitch 700 to be trunked together with the GigaSwitch Router (GSR) and other DEC equipment supporting this feature. -
Page 12: Smarttrunk And Port Connections
Spanning Tree protocol. The SmartTrunk application only acknowledges its neighboring switches. If a user goes through several switch hops, then loops back to the Þrst switch hop (creating a loop), a common connection between two switches (any two) will go into a blocking state (see Figure 1-2). - Page 13 MultiSwitch 700 Chassis MultiSwitch 700 9C106 Smart -216 Smart -216 Figure 1-2. SmartTrunk with a Network Loop Port costs are considered by SmartTrunk when disabling a looped conÞguration. SmartTrunk will place the higher path costs of the group interfaces into a blocked state.
- Page 14 Introduction Active Trunk Links The number of links participating in the trunking group. If all the ports in the trunking group are the same speed and conÞgured to the same duplex mode, the equation is: If the ports in the trunking group are different speeds, the equation is: Multiple trunks can also be established between chassis-based switches, but only one group of trunk ports will be active.
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Page 15: Correspondence
When this conÞguration is used, only one moduleÕs SmartTrunk Group will be active. The second path will block and serve as a backup to the currently active NOTES path. (The active trunking path will be determined by the module providing the lowest path cost.) Refer to the release notes for image-speciÞc restrictions while using SmartTrunking. - Page 16 Introduction Getting Help Contact your Digital representative for technical support. Before calling, having the following information ready: ¥ A description of the failure ¥ A description of any action(s) already taken to resolve the problem (e.g., changing mode switches, rebooting the unit, etc.) ¥...
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Page 17: Smarttrunk Configuration
SmartTrunk Configuration Prior to entering information in the SmartTrunking ConÞguration Screen, you should understand the concept of SmartTrunk (see Chapter 1) and the SmartTrunk ConÞguration Rules. SmartTrunk Configuration Rules The following rules apply when conÞguring ports for SmartTrunking. NOTE Failure to follow these rules will produce poor network performance. 1. - Page 18 SmartTrunk Configuration 7. An end station plugged directly into a port conÞgured for SmartTrunking will not be allowed to communicate. No trafÞc will ßow into the port. 8. The same SmartTrunk group cannot be split onto two separate modules (see Figures 2-1 and 2-2).
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Page 19: Smarttrunking Conþguration Screen
SmartTrunking Configuration Screen To select the SmartTrunking ConÞguration Screen from the Module ConÞguration Menu: 1. Use the arrow keys to highlight the SmartTrunking ConÞguration option. 2. Press the ENTER key. The SmartTrunking ConÞguration Screen, Figure 2-3, appears. Device Type: DLE22-MA SmartTrunk Group: SmartTrunk Logical Port: Port... - Page 20 Þll with SmartTrunk names found on the device. Users may either type in the name to be deleted or use the SmartTrunk Group Þeld to toggle through the list of names found on the switch. Display Group A list of the SmartTrunk groups available on this device. Selecting a group updates the table in the center of the screen.
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Page 21: Exiting The Smarttrunking Conþguration Screen
After making modiÞcations, you must select the SAVE command to save your changes. The NEXT and PREVIOUS commands will be displayed when there are more than 18 ports. ¥ To access ports on the device not seen on the primary screen, use the arrow keys to highlight the NEXT command at the bottom of the screen, then press the Return key. - Page 22 SmartTrunk Configuration...
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Page 23: Appendix A Helpful Hints For Configuring Smarttrunk
Helpful Hints for Configuring SmartTrunk NOTE This procedure must be completed on both switches participating in Trunking. 1. Navigate through Local Management to the SmartTrunking ConÞguration Screen. 2. Using the arrow keys, move the cursor to the Add/Remove Group Þeld. 3. -
Page 24: Creating A Second Trunk Group
Helpful Hints for Configuring SmartTrunk 9. After all ports have been added, highlight the SmartTrunk State Þeld. Press the Spacebar to select ENABLED. In order to minimize the interruption to network trafÞc while trunking is being NOTE conÞgured, it is recommended that a port between the switches remains outside the group until the trunking links are active. -
Page 25: Removing An Entire Trunk Group
Removing an Entire Trunk Group To remove an entire trunk Group: 1. Using the arrow keys, highlight the Group: [ADD/DELETE] Þeld (on the same line as the Add/Remove Group Þeld). Press the Spacebar to select [DELETE]. 2. If the name of the group to be deleted doesnÕt appear on the Add/Remove Group Þeld, type the name of the SmartTrunk group you wish to delete. - Page 26 Helpful Hints for Configuring SmartTrunk...
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