Nortel Networks 5000BH manual Segmenting a Ring, Giving a server a dedicated port

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Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

Figure 2-1 shows a network with a server connected to the network, ﬁrst through a shared-media hub and then through a TokenSpeed module in a Centillion 50 Token Ring Workgroup Switch.

Server	BayStack 500-series
	token ring hubs

BayStack 500-series

token ring hubs

Users

Users

Centillion 50

TokenSpeed token ring switch module

Before

After

7570EA

Figure 2-1. Giving a server a dedicated port

Segmenting a Ring

You can segment rings and connect the ring segments to the TokenSpeed module using either Ring In/Ring Out (RI/RO) ports or lobe ports on the token ring hubs.

Note: If you connect a token ring hub to a switch using only the RI or RO port, you have no backup path between the switch and the hub.

2-2	893-01019-A

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Contents Using the 8-port TokenSpeed TokenSpeed/MCP Switch Modules Trademarks Statement of ConditionsVoluntary Control Council for Interference Vcci Statement Iii893-01019-A 893-01019-A 893-01019-A Contents Chapter Installing and Connecting the TokenSpeed Module Figures Figure B -11. RI-other to RO connection RJ-45 to DB-9 Tables Xii Preface PurposeAudience Two-tiered Procedure Format ConventionsSpecial Message Formats Related Publications Ordering Bay Networks PublicationsRelated publications Title DescriptionHow to Get Help Technical Solutions Center Telephone number Fax numberBay Networks Customer Support Region Telephone number Fax numberFor More Information 893-01019-A Chapter Overview of the TokenSpeed Module About the TokenSpeed ModuleFeatures TokenSpeed Module Ports and ConnectivityFault Tolerance FilteringCaching and Proxy Network ManagementHardware features of the TokenSpeed module Physical DescriptionChapter TokenSpeed Module Applications Giving a Server a Dedicated PortSegmenting a Ring Giving a server a dedicated portConnecting a Segment Through the RI or RO Port Connecting a ring segment through an RI/RO port ring segmentConnecting a Segment Using a Lobe Port Connecting ring segments through lobe portsReplacing a Source Route Bridge or Router Concentrating Rings into a RouterConcentrating multiple rings into a router Installing and Connecting the TokenSpeed Module Preparing for InstallationInstalling the TokenSpeed Module Removing a ﬁller panel Slot module guides Connecting Cables to TokenSpeed Ports Seating the moduleToken Ring Connections Port types for the TokenSpeed moduleNetwork device port TokenSpeed port type Verifying the Installation Management ConnectionLED Switch Startup Sequence TokenSpeed Module LEDsLED name Meaning Factory default conﬁguration settings Parameter Factory default Possible settingsConﬁguring the TokenSpeed Module FFE Removing and Replacing a Module Replacing a TokenSpeed/MCP Module Loosening the TokenSpeed moduleSlide the module out of the chassis see Figure Replacing a TokenSpeed Module 11. Loosening the TokenSpeed module12. Removing the module from the Centillion chassis Page Troubleshooting the TokenSpeed Module Switch Startup Failure with TokenSpeed/MCP TokenSpeed Module Startup Failure Port Insertion Problems Verify that the cabling is correctTroubleshooting the TokenSpeed Module Page Appendix a Technical Speciﬁcations Safety Agency Approvals ConnectorsEnvironmental Speciﬁcations Electromagnetic EmissionsAppendix B Cables Port Types Cable TypesTable B-1 Port types for the TokenSpeed module Token Ring Connectors on the TokenSpeed Module Table B-2 Cable distancesCable type Mb/s 16 Mb/s UTP cable type STP cable typeCable and Connector Pin Assignments Figure B-2. Connectors for token ring network cablesRJ-45 to RJ-45 Connection Figure B-3. Hub to station connection RJ-45 to RJ-45Figure B-4. Station to hub connection RJ-45 to RJ-45 Figure B-6. RI-other to RO connection RJ-45 to RJ-45 RJ-45 to DB-9 Connection Figure B-8. Hub to station connection RJ-45 to DB-9Figure B-9. Station to hub connection RJ-45 to DB-9 Figure B-11. RI-other to RO connection RJ-45 to DB-9 RJ-45 to IBM Type 1 Connection Figure B-13. Station to hub connection RJ-45 to IBM TypeFigure B-14. Bay/SNPX RO to RI connection RJ-45 to IBM Type Male Mini DIN Signal Male DB-25 Pin locations Pin numbers Serial MCP ConnectionsMale Mini DIN 8 to male DB-25 cable Table B-3Request to send Clear to send Ring indicator Table B-4 Female DB-25 to female DB-9 adapterIndex Types, B-2 caching, RIFIndex-2 Index-3