Enterasys Networks 2000 manual Ethernet 802.3 Ethernet Raw, Ethernet Snap, Fddi Frames

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FDDI Applications

This is the default frame type for Novell NetWare software version 3.12 and beyond; it is also used for OSI packets on IEEE 802.x LAN networks.

Ethernet 802.3 (Ethernet Raw)

The Ethernet 802.3 frame format has an 802.3 MAC layer header (as do Ethernet

802.2frames); however, it does not contain an 802.2 LLC header. Instead, Novell IPX is fixed within the packet as the network layer protocol. This frame type – also known as Raw 802.3 – is the default frame type for Novell NetWare software before version 3.11. Since these frames do not carry the 802.2 header, they do not conform to the IEEE 802.3 specification. If you are using the Ethernet 802.3 Raw frame format, you should consider upgrading your Novell NetWare software to ensure interoperability with other communications protocols (unless your current network is not likely to be upgraded, and has no interoperability problems).

IPX packets with checksums which provide data integrity (a feature of newer Novell NetWare releases) cannot be transmitted on Ethernet 802.3 networks. Note also that a single Ethernet can carry both Ethernet 802.3 and Ethernet 802.2 traffic simultaneously. The Novell server software will treat the two frame types as two logical networks (and function as an IPX router between the two networks).

Ethernet SNAP

To allow for proprietary protocols, such as IBM’s SNA protocol, the Ethernet SNAP frame was created. This frame format extended the Ethernet 802.2 packet by improving the frame’s byte alignment, and by allowing further protocol identification than the one byte LSAP protocol identifier of Ethernet 802.2 frames (which is reserved for standard protocols). Ethernet SNAP packets have an LSAP protocol ID of hex AA, indicating that they contain a SNAP (Subnetwork Access Protocol) packet. A SNAP packet, encapsulated within the Ethernet 802.2 packet, has a five byte SNAP header which is simply a five byte protocol identifier. The first three bytes of the header indicate the Organizationally Unique Identifier (OUI) – or the authority assigning the protocol ID – and the last two bytes indicate the protocol according to that authority. Note that for most protocols, the OUI is

0-0-0, and the type identifier is the standard Ethernet protocol ID. Although most Ethernet transport protocols use the Ethernet II frame format, the AppleTalk II protocol uses Ethernet SNAP (AppleTalk has its own unique OUI).

FDDI Frames

There are two legal FDDI data frame types:

FDDI 802.2

The FDDI 802.2 frame type has two headers: the FDDI header (which includes the Frame Control field that indicates the class of frame, length of the address field, and the type of FDDI frame), and the 802.2 header.

FDDI SNAP

The FDDI SNAP frame type has an FDDI header with a Frame Control field that provides FDDI framing information, and the 802.2 LLC header with FDDI Frame Control, a SNAP LSAP identifier, and a five byte protocol identifier.

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Configuring FDDI Frame Translation Settings

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Contents SmartSwitch 2000 User’s Guide Page Virus Disclaimer Restricted Rights Notice Contents Alarm Configuration Chapter Managing Ethernet MicroLAN Switches Chapter StatisticsChapter HSIM-W87 Configuration Chapter Fddi ApplicationsIndex Introduction Introduction Introduction Introduction Using the SmartSwitch 2000 User’s Guide Using the Mouse Related ManualsSoftware Conventions Left Mouse Button Right Mouse Button Common SmartSwitch 2000 Window Fields Device NameIP Address LocationUsing Window Buttons Using On-line HelpGetting Help Accessing On-line Documentation Getting Help from the Global Technical Assistance CenterLogin Introduction Getting Help SmartSwitch 2000 Chassis View Viewing Chassis Information Front Panel InformationConnection Status Boot Prom Port StatusFirmware TimeSmartSwitch 2000 Chassis View Menu Structure Menu StructureDevice Menu Port Status Menu Repeater Menu Fddi MenuUtilities Menu Help MenuModule Menu Port Menus Port Status Displays Selecting a Port Status ViewStatus Load Errors MappingSpeed TypeSmartSwitch 2000 Chassis View Errors or Frame Size Port AssignmentChassis Manager Window Port Status Color CodesViewing Hardware Types Device TypeModule Type Connection TypeViewing I/F Summary Information Interface DescriptionIndex DescriptionPhysical Status Logical StatusRaw Counts Rate Viewing Interface DetailError AddressUnicast Non-UnicastUnknown Protocol Received only Packets Received Received onlyTransmit Queue Size Transmit only Packets Transmitted Transmit onlyUsing Device Find Source Address ComponentPort Instance Component Configuring Ports Managing the HubConfiguring Standard Ethernet and Fddi Ports 12. The Port Configuration WindowStandard Mode Configuring Fast Ethernet Ports on First Generation DevicesFull Duplex 13. The Fast Ethernet Port Configuration Window Current Operational Mode Desired Operational ModePort Type Link StateAdvertised Abilities Remote CapabilitiesSetting the Desired Operational Mode For 100Base-FX ports, options areConfiguring Ethernet Ports on Second Generation Devices 14. The Ethernet Configuration Window Remote Auto Signal Auto Negotiate ConfigAuto Negotiate Mode Operational Mode FieldsDuplex Flow ControlAuto Negotiation Technologies Setting Advertised Abilities for Auto Negotiation Configuring the COM PortCom Port Admin Com Port FunctionUsing an Uninterruptable Power Supply UPS Accessing the UPS WindowSpeed Selection UPS ID Setting the UPS ID Redirecting Traffic on the SmartSwitch Using the Test OptionUsing the Disconnect Option To access the Port Redirect window Priority Configuration Configuring Priority Queuing Based on Receive Port 18. The Port Priority Configuration Window Configuring Priority Queuing Based on MAC-layer Information 19. The MAC Based Priority Configuration WindowCurrent Priority Entries Address TypeFrame Type PriorityTo assign a transmit priority based on MAC-layer information Configuring Priority Queuing Based on Packet Type System Resources Window Flash Memory Installed Dram InstalledSram Installed Nvram InstalledReserving CPU Bandwidth What is a VLAN? 802.1Q VLANsWhat is an 802.1Q Port-Based VLAN? About 802.1Q Vlan Configuration and OperationIngress List Operation Egress List Operation802.1Q Port Types 1Q TrunkConfiguring Your 802.1Q Vlans Setting Vlan Parameters and Operational ModesHybrid Admin Status Vlan NameCreating and Modifying VLANs Deleting VLANsUpdating Vlan Config Window Information Performing Ingress List ConfigurationEnabling and Disabling VLANs Slot/Port ModePort Operational Mode DiscardPort Discard Assigning Vlan Membership to PortsSetting Port Operational Modes Setting Port Frame Discard FormatsUpdating Vlan Port Config Window Information Performing Egress List ConfigurationSlot Number NameBroadcast Suppression Egress PortsEgress Untagged List Building an Egress ListPort # Total RXPeak Rate Time Since PeakThreshold Setting the Device Date and Time 26. The Edit Time WindowEnabling and Disabling Ports SmartSwitch 2000 Chassis View Managing the Hub Alarm Configuration About Rmon Alarms and EventsBasic Alarm Configuration Alarm ConfigurationAccessing the Basic Alarm Configuration Window Rmon Basic Alarm Configuration WindowViewing Alarm Status Kilobits Total Errors Broadcasts/MulticastsIf Number If TypeLog/Trap Polling IntervalRising Threshold Rising ActionCreating and Editing a Basic Alarm Alarm Configuration Disabling a Basic Alarm Viewing the Basic Alarm Log Advanced Alarm Configuration Accessing the Rmon Advanced Alarm/Event ListRmon Advanced Alarm/Event List Window Alarm Configuration Creating and Editing an Advanced Alarm Rmon Create/Edit Alarms Window Alarm Configuration Alarm Configuration Alarm Configuration Table index.lengthin bytes.instancein decimal format Alarm Configuration Creating and Editing an Event Rmon Create/Edit Events Window Alarm Configuration Adding Actions to an Event Rmon Create/Edit Actions Window Deleting an Alarm, Event, or Action Viewing an Advanced Alarm Event LogAlarm Configuration How Rising and Falling Thresholds Work Alarm Configuration How Rising and Falling Thresholds Work Accessing the Statistics Windows StatisticsRmon Statistics StatisticsProblems BytesPackets Drop EventsFrame Size Bytes Packets Viewing Total, Delta, and Accumulated Statistics If Statistics Printing StatisticsIf Statistics Discarded Managing Ethernet MicroLAN Switches Repeater StatisticsAccessing the Statistics Windows Statistics WindowsTo access the port-level Statistics window Hard Errors Statistics DefinedActive Users BroadcastsSoft Errors Using the Total and Delta Option ButtonsTimer Statistics Accessing the Timer Statistics WindowsTo access the port-level Timer Statistics window Setting the Timer Statistics Interval Repeater Performance GraphsAccessing the Performance Graph Windows Total Errors Red Percent Load GreenFrames Blue Configuring the Performance Graphs Detail ButtonError Breakdown Frame Status BreakdownAlarm Limits Accessing the Alarm Limits WindowsManaging Ethernet MicroLAN Switches Managing Ethernet MicroLAN Switches Collisions Errors of Type Broadcast PacketsConfiguring Alarms Setting the Alarm Limits Time IntervalWithin Setting Alarm Limits Trap SelectionAccessing the Trap Selection Windows Trap Definitions Link State TrapsSegmentation Traps Source Address TrapsConfiguring Traps Managing Ethernet MicroLAN Switches Fddi Applications Concentrator Configuration Click on Fddi StatisticsConcentrator Configuration Window MAC StateSMT Version Req. Requested Target Token Rotation Time Neg. NegotiatedConcentrator M Ports Concentrator Non-M PortsRing Configuration Connection Policy WindowFddi Applications Station List Number of NodesAddress Mode Stations PanelFddi Performance Node ClassTopology Upstream NeighborFrame Errors Transmit FramesReceive Frames Lost FramesFddi Statistics Frames/secKBytes/sec Peak KBytes/secConfiguring Fddi Frame Translation Settings Setting the Fddi Statistics Poll RateUtil Click on Frame TranslationInformation about Ethernet and Fddi Frame Types Frame Translation WindowEthernet Frames EthernetEthernet 802.3 Ethernet Raw Ethernet SnapFddi Frames FddiFddi Frame Translation Options IP FragmentationTranslate all Non-Novell Fddi Snap frames to Translate all Ethernet Raw frames toTranslate all Novell Fddi Snap frames to Translate all Novell Fddi 802.2 frames toTranslate all Novell Fddi MAC frames to Auto Learn Novell Frame TranslationATM Configuration Accessing the ATM Connections WindowSettings Connection DataAdd DeleteRefresh Configuring Connections Adding a New ConnectionDeleting a Connection HSIM-W87 Configuration T3 Configuration WindowTime Elapsed Valid IntervalsT1 Configuration Window Line StatusT3 Line Type T3 Loop BackT1 Line Number T1 Frame Type T1 Loop BackT1 Line BuildOut Configuring IP Priority Max EntriesNumber of Entries IP Priority Queue StatusHSIM-W87 Configuration Configuring IP Priority Symbols NumericsIndex-2 Index-3 Index-4 Index-5 Index Index-6
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2000 specifications

Enterasys Networks, a key player in the networking space in 2000, was renowned for its innovative solutions that combined high-performance networking with robust security features. Founded with the vision of providing enterprise-level networking infrastructure, Enterasys positioned itself to cater to the growing demands of business networks during the dot-com boom.

One of the main features of Enterasys Networks was its focus on delivering secure, scalable networking solutions that could seamlessly integrate with existing enterprise systems. The company developed a range of products including switches, routers, and wireless solutions that were designed to optimize performance while ensuring security at every layer. Their core offerings provided businesses with the reliability required to handle increasing volumes of data traffic.

A standout technology of Enterasys was its identity and access management solutions. These technologies allowed organizations to control who could access network resources and under what conditions. This was particularly crucial in a time when cyber threats were on the rise, and businesses were becoming more aware of the need for strict network security protocols. The features included role-based access control and authentication measures, which were fundamental in safeguarding sensitive information.

Enterasys also introduced intelligent networking features, which enabled dynamic traffic management and prioritization. This technology helped organizations optimize their network performance by automatically adjusting to changing workload demands. Such capabilities were essential for businesses relying on bandwidth-intensive applications and services.

The company also embraced the rising trend of wireless networking, providing solutions that combined wired and wireless technologies for a unified experience. Enterasys Wireless LAN solutions were groundbreaking at the time, offering seamless connectivity and security to mobile devices, thereby enhancing productivity and flexibility within enterprise environments.

In addition to hardware, Enterasys developed network management software that simplified the administration of complex networks. This software enabled IT professionals to monitor performance, troubleshoot issues, and implement security policies efficiently.

Overall, Enterasys Networks in 2000 was characterized by its commitment to delivering secure, intelligent networking solutions that catered to the needs of modern enterprises. With its innovative technologies and features, Enterasys played a significant role in shaping the networking landscape, laying the groundwork for future advancements in network security and management.