Cabletron Systems 9A128-01 manual MAC State

Page 44

FDDI Management

MAC State

This ﬁeld indicates the current state of the selected module’s MAC component. (The RMT component of SMT monitors MAC operation and takes actions necessary to aid in achieving an operational ring.) Possible states are:

Not Available	There is no MAC on the FDDI ring associated with the
	SMT entity, or the selected SMT entity is not attached to
	the main ring through the backplane FNB A and B ports.
Ring-Op	The ring is functioning normally. While in this state, the
	MAC being managed is part of an operational FDDI ring.
Isolated	SMT has just initialized RMT or RMT has entered this
	state during a path test (trace) after ring beaconing; RMT
	is not aware of the ring path or state.
Non-Op	The MAC being managed by the selected SMT is
	participating in ring recovery; the ring is not operational.
Detect	The claim (beacon) process of the FDDI ring protocol has
	exceeded one second. There may be a problem on the
	ring; any duplicate address conditions are being
	detected. In this state, the ring is still alive, but no data is
	being transmitted.
Non-Op-Dup	The ring is not operational; the address of the MAC
	under control of the SMT entity has been found to
	duplicate that of another MAC on the ring. The duplicate
	address condition prevented ring recovery and
	initialization after a claim and beacon process. This state
	will not occur unless you are using locally-administered
	addresses, as factory-set MAC addresses are guaranteed
	to be unique.
Ring-Op-Dup	The ring is operational; however, the address of the MAC
	under control of the SMT entity has been found to
	duplicate that of another MAC on the ring. Corrective
	actions will be attempted before the duplicate address
	condition causes ring initialization to fail after the claim
	and beacon recovery process. Like Non-Op-Dup, this
	state will not occur unless you are using
	locally-administered addresses.
Directed	The beacon process did not complete within 7 seconds.
	The selected SMT has directed the controlled MAC to
	send beacon frames to notify the other stations that a
	serious problem exists on the ring, and a Trace state is
	soon to follow.
Trace	A problem exists on the ring which could not be
	corrected during the beaconing process, and a Trace has
	been initiated. During a Trace (or Path Test), the SMT
	sends a signal that forces its nearest upstream neighbor

Conﬁguration

4-3

Image 44

Contents Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Index Chapter Fddi ManagementChapter Bridging 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 StatusDate Menu StructureTime 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 CodesModule Type Viewing Hardware TypesDevice 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 Neg. Negotiated SMT VersionReq. Requested Target Token Rotation Time Concentrator M Ports Concentrator Non-M PortsNumber of MACs MAC PathConnection Policy 15 32,768 a permanently set value for this bit Number of Nodes Address ModeStation List 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 XmittedForwarded from Interface Statistics WindowForwarded to 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 Hello Time Changing Bridge PriorityChanging the Spanning Tree Algorithm Protocol Type Changing Port Priority Changing Forwarding Delay TimeChanging Max Age Time Filtering Database Changing Path CostBridging Bridging List NumberCapacity Ageing TimePort Filtering Conﬁguring the Filtering DatabaseReceive Port 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