Cabletron Systems TRFMIM-28 manual LANVIEW LEDs

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Introduction

Arbitration for the backplane is accomplished in the INB Time Division Multiplexing (ITDM) logic. The arbitration is a three-level scheme that ensures that no one can get the backplane for more than one time slice at a time.

The ITDM RAM contains 256 4-bit locations. This RAM is used to hold slot numbers of modules participating in INB backplane arbitration. The arbitration engine accesses this RAM once every time slice to get a slot number. That slot number will be granted access on the next time slice if it is requesting. The arbitration engine is always one time slice ahead, meaning that the value read from the RAM is for the next time slice, not the current time slice.

LANVIEW LEDs

The 9H423-28 module uses LANVIEW – the Cabletron Systems built-in visual diagnostic and status monitoring system. With LANVIEW LEDs, you can quickly identify, at a glance, system status as well as the device, port, and physical layer status. Two LEDs indicate the transmission and reception of data from the INB SmartSwitch 9000 backplane connection. Each of the 12 Ethernet front panel ports features two LEDs per port to indicate the port’s Administrative status (enabled/ disabled), LINK status (Link/Nolink), and Data Activity (receiving and transmitting data).

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Contents SmartSwitch 9H423-28 User’s Guide 9032061-01Page Copyright March 1998 by Cabletron Systems, Inc 35 Industrial Way DOC Notice FCC NoticeVCCI Notice Conformance to Directives/Product Standards DECLARATION OF CONFORMITY ADDENDUMNexus House, Newbury Business Park The FPIM-05 and FPIM-07 are Class 1 Laser Products Safety InformationCLASS 1 LASER TRANSCEIVERS CLASS 1 LASER TRANSCEIVERS Laser Radiation and Connectors Page Chapter ContentsInstalling the 9H423-28 Module Introductionviii SpeciﬁcationsContents Introduction ChapterProcessor FeaturesFast Packet Switching ManagementThe 9H423-28 module provides MIB support including RMON RFC-1271 LANVIEW LEDs FAST ENET 9H423-28 Figure 1-1. The 9H423-28 Module26X 25X SMB CPU INB FAST ENETRelated Manuals Getting HelpUnpacking the Module Installing the 9H423-28 ModuleInstalling an FEPIM User Accessible Components Setting the Module DIP Switch Table 2-1. Function of DIP Switch See the Cautions at the end of this tableInstalling the Module in the SmartSwitch 9000 Chassis Metal Back-Panel Figure 2-3. Installing the ModulePlastic Tab Jack for ESD Wrist Strap ModuleThe Reset Switch Reset SwitchInstalling the 9H423-28 Module Operation ENIB/FENIB OperationVLAN SmartSwitch ASICTraditional Switch VLAN Domains SecureFast VLAN Switches Fully-Meshed VLAN DomainsSystem Management Buses i960 CoreINB NIB SMB-1 BusINB Interface System Diagnostic ControllerDC/DC Converter SMB-10 BusRound Robin Arbitration Level ITDM Arbitration LevelsITDM RAM Allocation Level Lowest Slot Number LevelMonarch/Slave SmartSwitch 9000 Modules 3-10 Port Transmit LANVIEW LEDsINB Receive System Status INB Transmit Port ReceiveLANVIEW LEDs The function of the INB Receive LEDs is listed in TableThe function of the INB Transmit LEDs is listed in Table Table 4-4. Port Receive LEDs The function of the Port Receive LEDs is listed in TableThe function of the Port Transmit LEDs is listed in Table Table 4-5. Port Transmit LEDsLANVIEW LEDs Memory SpeciﬁcationsTechnical Speciﬁcations StandardsDimensions SafetyService Weight5 to 40 C EnvironmentOperating Temperature Storage TemperatureSpeciﬁcations FE-100FX FEPIM SpeciﬁcationsFE-100TX Appendix AFE-100FX FEPIM Speciﬁcations