MAC State | Cabletron Systems 9A128-01 guide

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

Cabletron Systems 9A128-01 manual MAC State

Contents

Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Index Chapter Fddi ManagementChapter Bridging Using This Guide Introduction Related Reading Software Conventions Common Window FieldsDevice Name IP Address Using Buttons Using On-line HelpGetting Help Location Getting Help from the Cabletron Systems Global Call Center FTP Firmware Versions Supported 9A128-01 Module View Viewing Module Information Front Panel Information Boot Prom Connection StatusUpTime Port Status Date Menu StructureTime A128-01 Module View Menu Structure Device Menu Port Status Menu Fddi Menu Utilities MenuHelp Menu Board Menus Port Status Displays Port Menus Selecting a Port Status View Bridge Port Status Displays Bridge Port State Bridge MappingBridge Port Status Color Codes Fddi Port Status Displays Connection State LER Estimate Chassis Manager Window Fddi Port Status Color Codes Module Type Viewing Hardware TypesDevice Type Viewing I/F Summary Information Module Type Window Index DescriptionSta Interface Performance Statistics/Bar Graphs Raw Counts Load Rate Interface Statistics Window Error AddressUnicast Non-Unicast Using the Find Source Address Feature Packets Received Received onlyTransmit Queue Size Transmit only Packets Transmitted Transmit only Setting the Device Date and Time Managing the Hub Enabling and Disabling Ports Bridge Ports Module Ports Accessing the ATM Connections Window ATM Conﬁguration ATM Conﬁguration Connection Data Settings VPI Conﬁguring Connections Adding a New Connection Deleting a Connection ATM Conﬁguration Conﬁguring Connections Fddi Management Conﬁguration Fddi Management MAC State Neg. Negotiated SMT VersionReq. Requested Target Token Rotation Time Concentrator M Ports Concentrator Non-M PortsNumber of MACs MAC Path Connection Policy 15 32,768 a permanently set value for this bit Number of Nodes Address ModeStation List Stations Panel Node ClassTopology Upstream Neighbor Performance Frame Errors Transmit FramesReceive Frames Lost Frames Fddi Management Performance Bridging Bridge Status Window Bridging Up Time Bridge State on InterfaceInterface Type Bridge Address Conﬁguring Duplex Modes Enabling and Disabling Bridging Bridge Statistics Performance Graphs Forwarded Green Total Errors Red Filtered MagentaXmitted Blue Conﬁguring the Bridge Performance Graphs Errors ForwardedFiltered Xmitted Forwarded from Interface Statistics WindowForwarded to Description Using Source Addressing Setting the Ageing Time Port Source Addresses Window Bridge Spanning Tree Conﬁguring the Bridge Spanning Tree Window Bridge Priority Root Bridge Root CostRoot Port Protocol Forwarding Delay Hello TimeMax Age Hold Time Changing 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 Cost Bridging Bridging List NumberCapacity Ageing Time Port Filtering Conﬁguring the Filtering DatabaseReceive Port Altering the Ageing Time Changing the Type of EntryChanging the Receive Port Changing the Port Filtering Action Clearing All Permanent, Static, or Dynamic Entries Bridging Filtering Database Index Index-2 Index-3 Index Index-4