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9032680

SmartTrunk

User’s Guide

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Summary of Contents for SmartSwitch SmartMIM-216

Page 1: ...9032680 SmartTrunk User s Guide ...

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Page 3: ...MAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright October 1998 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 5005 All Rights Reserved Printed in the United States of America Order Number 90...

Page 4: ...ch case the user will be required to correct the interference at his own expense WARNING Changes or modiÞcations made to this device which are not expressly approved by the party responsible for compliance could void the userÕs authority to operate the equipment VCCI Notice This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology E...

Page 5: ... Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment packaged with this notice conforms to the above directives Mr Ronald Fotino Mr J Solari ____________________________________________________ ______________________________________________________ Full Name Full Name Principal C...

Page 6: ...Notice iv ...

Page 7: ...ups 1 3 SmartTrunk and Port Connections 1 4 Correspondence 1 7 Chapter 2 SmartTrunk Configuration SmartTrunk ConÞguration Rules 2 1 SmartTrunking ConÞguration Screen 2 3 Exiting the SmartTrunking ConÞguration Screen 2 5 Appendix A Helpful Hints for Configuring SmartTrunk Creating a Second Trunk Group A 2 Removing an Entire Trunk Group A 3 Removing a Port from a Group A 3 ...

Page 8: ...Contents vi ...

Page 9: ...orts 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 Be connected in a point to point link full duplex is recommended Be connected to a port that is also conÞgured as part of a SmartTrunk Group Have Spanning Tree protocol ena...

Page 10: ... order packets Modulus Examples Ports contained in the trunk are labeled from zero 0 to one less than the number of ports in the group For example if the physical ports in the group are 1 3 5 7 9 packet distribution would be based on the trunking port number assigned Trunking port numbers are 0 1 2 3 4 The modulus operator divides the Þrst number by the second number and yields a whole number rema...

Page 11: ...width and provide link redundancy Figure 1 1 depicts a single example of a network with several MultiSwitch 700 chassis using SmartTrunking In this example a module in one MultiSwitch 700 chassis 1 supports two different SmartTrunk groups to other MultiSwitch 700 chassis 2 and 3 Group ÒAÓ forms the SmartTrunk that connects a module in chassis 1 to a module in chassis 3 Group ÒBÓ forms a separate S...

Page 12: ...g 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 9C106 MIM 216 Smart MultiSwitch 700 Chassis 2 Users Group A on Chassis 3 Both Groups on Chassis 1 Group B on Chassis 2 9C106 MIM 216 Smart 9C106 MIM 216 Smart MultiSwitch 700 Chassis 1 Group B Grou...

Page 13: ...ns Speed The speed of the interface typically in megabits For example 10 100 or 1000 see Table 1 1 Table 1 1 Example Port Speeds Port Type Speed 10 Mb Half Duplex 100 10 Mb Full Duplex 50 100 Mb Half Duplex 10 100 Mb Full Duplex 5 9C106 MIM 216 Smart MIM 216 Smart MultiSwitch 700 Chassis 9C106 MIM 216 Smart MIM 216 Smart MultiSwitch 700 Chassis 9C106 MIM 216 Smart MIM 216 Smart MultiSwitch 700 Cha...

Page 14: ... Multiple trunks can also be established between chassis based switches but only one group of trunk ports will be active The trunked ports do not necessarily need to be on the same module A Blocked state for all ports in the Group in Standby will be reßected on the SmartTrunking Local Management screen Trunking Active MultiSwitch 700 Chassis Blocked 1 2 The active path is determined by the lowest ...

Page 15: ...orks digital com au 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 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 NOTES The only time path cost is calculated is w...

Page 16: ...ion of the failure A description of any action s already taken to resolve the problem e g changing mode switches rebooting the unit etc A description of your network environment layout cable type etc Network load and frame size at the time of the trouble if known The device history i e have you returned the device before is this a recurring problem etc ...

Page 17: ...s to another chassis 3 You must enable Spanning Tree before you enable SmartTrunk If a network loop exists and SmartTrunk becomes disabled then as long as Spanning Tree is enabled the Spanning Tree algorithm will respond and block the necessary ports 4 If a network loop exists and SmartTrunk becomes disabled and Spanning Tree is also disabled then an inÞnite packet loop will occur and cripple the ...

Page 18: ... The same SmartTrunk group cannot be split onto two separate modules see Figures 2 1 and 2 2 Figure 2 1 ILLEGAL CONFIGURATION Example 1 Figure 2 2 ILLEGAL CONFIGURATION Example 2 9C106 MIM 216 Smart 9C106 MIM 216 Smart 9C106 MIM 216 Smart Group A MultiSwitch 700 MultiSwitch 700 MultiSwitch 700 9C106 MIM 216 Smart 9C106 MIM 216 Smart Group A MultiSwitch 700 MultiSwitch 700 ...

Page 19: ...ng section brießy explains each Þeld on the SmartTrunking ConÞguration Screen SmartTrunk Group The title of the group that is active in the screen SmartTrunk Logical Port IdentiÞes the bridge port number used by all members of the SmartTrunking group DLE22 MA LOCAL MANAGEMENT SmartTrunking Configuration Device Type DLE22 MA Firmware Revision XX XX XX BOOTPROM Revision XX XX XX SmartTrunk Group Sma...

Page 20: ...he SmartTrunk groups available on this device Selecting a group updates the table in the center of the screen The table displays the ports and current state of the members included in the group If no groups have been created Added then this Þeld will remain blank and the table will display no data Port When State is ADD Displays the ports available to add to the displayed group Ports assigned to o...

Page 21: ...een on the primary screen use the arrow keys to highlight the NEXT command at the bottom of the screen then press the Return key To view the previous screen of ports use the arrow keys to highlight the PREVIOUS command at the bottom of the screen then press the Return key Exiting the SmartTrunking Configuration Screen To exit the SmartTrunking ConÞguration Screen use the arrow keys to highlight RE...

Page 22: ...SmartTrunk Configuration 2 6 ...

Page 23: ...ar to change the port number 7 Using the arrow keys highlight the ADD Þeld and then press the Return key The port and state will be added to the table on the trunking page The port will no longer show in the list of ports that can be added 8 Repeat steps 5 through 7 to select the next port to be added If the ports to be added to the group are sequential start by selecting the lowest port value and...

Page 24: ...ceding section In order to minimize the interruption to network trafÞc while trunking is being conÞgured it is recommended that a port between the switches remains outside the group until the trunking links are active As soon as you enable a trunking group on one end of the trunk all trafÞc will stop until the other end of the trunk is enabled Leaving one port out of the group will allow trafÞc to...

Page 25: ...p to be deleted doesnÕt appear on the Add Remove Group Þeld type the name of the SmartTrunk group you wish reconÞgure It is also possible to use the Display Group Þeld to toggle through existing groups This will automatically update the Add Remove Group Þeld Once the proper name appears in the Add Remove Group Þeld proceed to step 2 2 Highlight the ADD DELETE Þeld to the right of the Port Þeld Pre...

Page 26: ...Helpful Hints for Configuring SmartTrunk A 4 ...

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