Cabletron Systems 9A128-01 manual 15 32,768 a permanently set value for this bit

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FDDI Management

Each device has its own connection policy; however, when two devices attempt to connect, their combined established connection policies dictate the connections that will be allowed. In an attempted connection between two nodes, the most lenient policy will determine whether the connection (as long as it is legal) can be made. For example, if two FDDI nodes attempt an A—>A connection, and this connection is not allowed at one FDDI node but allowed at the other, the connection would be accepted. If the connection policy at both nodes disallows the connection, the connection will be rejected.

This is a read-only window; you currently cannot edit the connection policy via SPECTRUM Element Manager.

You can use any SNMP Set Request or MIB tool to edit the Connection Policy for your

TIP device by setting the fddimibSMTConnectionPolicy MIB OID (part of the MIB-II FDDI Transmission MIB (RFC1512). fddimibSMTConnectionPolicy is simply a 16-bit integer value (ranging from 32768 to 65535) that corresponds to the connection policy (in the “Reject X-Y” format, where X represents a port on the FDDI Switch Module, and Y represents the attaching node).

To set the connection policy for the device, total the bit values corresponding to

the desired connection policy according to the table below, and then use your SNMP Set Request or Mib tool to set the value for the appropriate SMT index. For example, to set a connection policy that disallowed the undesirable A-A or B-B connections you would set the fddimibSMTConnectionPolicy MIB OID to 32,801:

32,768 (reject M-M, required) + 32 (reject B-B) + 1 (reject A-A).

Policy	Power
reject A-A	20	(1)
reject A-B	21	(2)
reject A-S	22	(4)
reject A-M	23	(8)
reject B-A	24	(16)
reject B-B	25	(32)
reject B-S	26 (64)
reject B-M	27	(128)
reject S-A	28	(256)
reject S-B	29	(512)
reject S-S	210 (1,024)
reject S-M	211 (2,048)
reject M-A	212 (4,096)
reject M-B	213 (8,192)
reject M-S	214 (16,384)
reject M-M	215 (32,768 — a permanently set value for this bit)

Connection Policy

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Contents Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Fddi Management Chapter BridgingIndex Using This Guide IntroductionRelated Reading Software Conventions Common Window FieldsDevice Name IP AddressUsing Buttons Using On-line HelpGetting Help LocationGetting Help from the Cabletron Systems Global Call Center FTPFirmware Versions Supported 9A128-01 Module View Viewing Module Information Front Panel InformationBoot Prom Connection StatusUpTime Port StatusMenu Structure TimeDate A128-01 Module View Menu Structure Device MenuPort Status Menu Fddi Menu Utilities MenuHelp Menu Board MenusPort Status Displays Port MenusSelecting a Port Status View Bridge Port Status DisplaysBridge Port State Bridge MappingBridge Port Status Color Codes Fddi Port Status DisplaysConnection State LER EstimateChassis Manager Window Fddi Port Status Color CodesViewing Hardware Types Device TypeModule Type Viewing I/F Summary Information Module Type WindowIndex DescriptionSta Interface Performance Statistics/Bar GraphsRaw Counts LoadRate Interface Statistics WindowError AddressUnicast Non-UnicastUsing the Find Source Address Feature Packets Received Received onlyTransmit Queue Size Transmit only Packets Transmitted Transmit onlySetting the Device Date and Time Managing the HubEnabling and Disabling Ports Bridge PortsModule Ports Accessing the ATM Connections Window ATM ConﬁgurationATM Conﬁguration Connection DataSettings VPIConﬁguring Connections Adding a New ConnectionDeleting a Connection ATM Conﬁguration Conﬁguring Connections Fddi Management Conﬁguration Fddi ManagementMAC State SMT Version Req. Requested Target Token Rotation TimeNeg. Negotiated Concentrator M Ports Concentrator Non-M PortsNumber of MACs MAC PathConnection Policy 15 32,768 a permanently set value for this bit Address Mode Station ListNumber of Nodes Stations Panel Node ClassTopology Upstream NeighborPerformance Frame Errors Transmit FramesReceive Frames Lost FramesFddi Management Performance Bridging Bridge Status Window BridgingUp Time Bridge State on InterfaceInterface Type Bridge AddressConﬁguring Duplex Modes Enabling and Disabling Bridging Bridge Statistics Performance GraphsForwarded Green Total Errors Red Filtered MagentaXmitted Blue Conﬁguring the Bridge Performance GraphsErrors ForwardedFiltered XmittedInterface Statistics Window Forwarded toForwarded from Description Using Source Addressing Setting the Ageing Time Port Source Addresses WindowBridge Spanning Tree Conﬁguring the Bridge Spanning Tree Window Bridge PriorityRoot Bridge Root CostRoot Port ProtocolForwarding Delay Hello TimeMax Age Hold TimeChanging Bridge Spanning Tree Parameters Changing Bridge Priority Changing the Spanning Tree Algorithm Protocol TypeChanging Hello Time Changing Forwarding Delay Time Changing Max Age TimeChanging Port Priority Filtering Database Changing Path CostBridging Bridging List NumberCapacity Ageing TimeConﬁguring the Filtering Database Receive PortPort Filtering Altering the Ageing Time Changing the Type of EntryChanging the Receive Port Changing the Port Filtering ActionClearing All Permanent, Static, or Dynamic Entries Bridging Filtering Database Index Index-2 Index-3 Index Index-4