Port, LER Alarm | Cabletron Systems 7C04-R, 7C03 guide

FDDI Management

appear. For multiple NIMs, SMT entities will be indexed from left to right in the hub, and from top (front panel port 1) to bottom (front panel port 2) on each module.

Port

Displays the index number assigned to each port. If you have launched the Alarm Conﬁguration application from the Hub View, each front panel port will be identiﬁed by type (A or B); if you have launched from the command line, each will be identiﬁed by a logical index number (1 or 2) that identiﬁes the port in relation to its assigned SMT entity.

LER Estimate

The Link Error Rate (LER) Estimate (Figure 4-6) is a cumulative long term average of the bit error rate, which represents the quality of the physical link. It is computed when the port is connected and every 10 seconds thereafter. The value of the LER Estimate can range from 10-4to 10-15, but it is always displayed as the absolute value of the exponent; for example, if the port’s LER Estimate is computed to be 10-5, the value displayed will be 5, which represents an actual rate of 1,250 bit errors per second. The lowest LER Estimate numbers represent the highest bit error rates, as summarized in the ﬁgure below.

.000000125

.00000125

.0000125

.000125

.00125

Bit Errors

.0125

per

.125

Second

1.25

12.5

125

1250

12500

4 5 6 7 8 9 10 11 12 13 14 15

Reported LER Estimate

Figure 4-6. LER Estimate Values

LER Alarm

The Link Error Rate (LER) Alarm ﬁeld displays the threshold at which a port will enter an alarm condition. A port in an alarm condition will display a yellow status in the Alarm Conﬁguration window; in addition, you can conﬁgure the Meters application so that a mail message will be generated when the threshold is crossed. (For more information about the Meters application, see the Charts, Graphs, and Meters chapter in your SPMA Tools Guide.) The default LER Alarm value is 8, which represents 1.25 bit errors per second (see the table above). When conﬁguring the LER Alarm threshold, be sure that the value you set represents a lower link error rate than the LER Cutoff threshold, explained below. Remember, a lower link error rate is represented by a higher threshold setting.

Alarm Conﬁguration

4-11

Image 79

Cabletron Systems 7C04-R, 7C03 manual Port, LER Alarm

Contents

Complete Networking Solution Page Virus Disclaimer Applicable to licenses to the United States Government only Restricted Rights Notice Contents Chapter Fddi Management Chapter Basic Alarm Conﬁguration Index Chapter Using the 7C0x SmartSwitch Bridge ViewAppendix a 7C0x SmartSwitch MIB Structure Chapter ATM Conﬁguration Contents Introduction to Spma For the 7C0x SmartSwitch Introduction to Spma for the 7C0x SmartSwitch Using the 7C0x SmartSwitch User’s Guide What’s not in the 7C0x SmartSwitch User’s Guide Screen Displays Conventions History Window Using the Mouse Getting Help 7C0x SmartSwitch Firmware Using the Hub View Using the 7C0x SmartSwitch Hub View Navigating Through the Hub View Using the 7C0x SmartSwitch Hub View Device Location Hub View Front PanelUptime Device Name Using the Mouse in a Hub View Module Port Index Monitoring Hub Performance Selecting the Application Display Mode For switch- conﬁgured For bridge- devices conﬁgured Devices COM Port and Fddi Front Panel Displays AdminFddi Port Display Forms LER Estimate Port Type SMT Index Switch Application DisplayFddi Color Codes Admin State Switch Port Display FormsOper State Type Switch Port Color Codes Bridge Port Display Forms Bridge Application Display Bridge Port Number Tp Frames ForwardedTp Frames Filtered Sr Frames Forwarded Interface Application Display Bridge Port Color Codes Link Status Duplex ModeInterface Port Display Forms Oper Status MIB II Statistics CapabilitySpeed Interface Number Ethernet Statistics 65-127 128-255 256-511 Interface Port Color Codes Viewing Device Conﬁguration Top Level Serial Number Boot VersionFirmware Version Software Version Viewing the Interface List Sfs Admin Status Viewing Switch Status Num Connections Viewing the Source Address ListSfs Operating Status Max Connections Launching Spma Tools from the Hub View Managing the Hub Find MAC Address Module Utilities Port Conﬁguration Alarm Conﬁguration Accessing Fddi Management SMT/MAC Conﬁguration SMT Connection Policy Station List Accessing ATM ManagementAccessing Bridge Management Setting the Polling Intervals Device General Status Contact Status Statistics Port ConﬁgurationDevice Conﬁguration Port Operational State Full Duplex Standard Mode 17. Fast Ethernet Conﬁguration Conﬁguring Fast Ethernet Ports Desired Operational Mode Current Operational ModeLink State Remote Capabilities Advertised Abilities Setting the Desired Operational Mode Conﬁguring COM Ports For 100Base-FX ports, options are COM Port Function COM Port Admin Speed Selection Enabling and Disabling Bridge Ports Using the 7C0x SmartSwitch Hub View Using the 7C0x SmartSwitch Hub View Managing the Hub About Basic Alarms Basic Alarm Conﬁguration From the command line stand-alone mode Launching the Basic Alarm ApplicationFrom the Hub View Octets Kb Total Errors Broadcast/Multicast Viewing Alarm Status Status Port NumberIf Number If Type Rising Action TrapPolling Interval Rising Threshold Sample Rising and Falling Threshold Pairs How Rising and Falling Thresholds Work Conﬁguring an Alarm Basic Alarm Conﬁguration Disabling an Alarm LogIndex Viewing an Alarm LogLogEventIndex LogDescription LogTime Basic Alarm Conﬁguration Viewing an Alarm Log Fddi Management Fddi Management Port Conﬁguration Port Index Connection StateMedia Type Enabling or Disabling Fddi Ports Charts, Graphs, and Meters LEM Count Viewing the Fddi Port ChartLEM Reject Count Viewing Fddi Port Meters Changing the Measurement of Data LEM Reject Rate LEM RateViewing Fddi Port Graphs Spmarun fddialrm IP Address community name Alarm Conﬁguration Port Alarm Status Port LER Alarm LER Cutoff Spmarun fddicnfg IP Address community name SMT/MAC Conﬁguration Version MAC Cts Optical Bypass SwitchCF State RMT State MAC Address TNeg TReq Requested Target Token Rotation TimeCurrent Path Error Count Viewing the Fddi MAC ChartFrame Count Viewing Fddi MAC Meters Lost Count Lost Frame Rate Frame Error RateFrame Error Ratio Frame Rate Spmarun fddicpol IP Address community name Conﬁguring the SMT Connection Policy 10. SMT Connection Policy Window Fddi Connection Rules Twisted Ring Deﬁning Your Connection PolicySpecial Ring Conﬁgurations Dual Homing Spmarun fddislst IP Address community name Viewing the Station List Entry Topology Upstream MACVendor Node Class Fddi Management Fddi Management Viewing the Station List ATM Conﬁguration Accessing the AToM MIB Window Conﬁgured Max AAL Type Interface Encaps Conﬁguring Connections ATM Conﬁguration ATM Conﬁguration Conﬁguring Connections Bridging Basics Using the 7C0x SmartSwitch Bridge View Transparent Bridging Accessing the Bridge Trafﬁc View Window Front Panel shows device-level summary information Navigating Through the Bridge Trafﬁc View Time and Date Bridge Trafﬁc View Front Panel Bridge ﬁrmware revision Spma Bridge View version Port # Bridge Port Display Enabled Learning Using the Detail View Window Detail View Showing Four Ports Port Boxes in the Detail View Changing Ports in the Detail View Bridge Statistics Window Bridge Status Window IfIndex DelayExceedDiscardBridging Type Total Ports MtuExceedDiscard Filtering Database Window Ageing Time secs Viewing the Filtering Database Source Address Learned Entry DiscardsReceive Port Destination Port Changing the Filtering Database Ageing Time Changing the Filtering Database Dynamic Ageing Time Static Table Window Changing Forwarding and Static Database Entries Forward To Ports Static AddressDeleting a Static Table Entry Finding a Filtering Database MAC Address Spanning Tree Protocol Window Spanning Tree Version Max Age Forward DelayDesignated Root Num. Topology Chgs Root Cost Hello TimePriority Root Port Root Hello Time Root Forward DelayChanging Spanning Tree Parameters Root Max Age Priority Port Spanning Tree Port Parameters WindowPath Cost Designated Bridge Designated Cost Designated Port Creating Bridge Trafﬁc Charts, Graphs, and MetersDrag down to select Pie Chart or Graphs/Meters-Transparent Changing a Port’s STA Parameters Bridge Port Forwarding Statistics Window Frms Fwd Port Forwarding Statistics Window FieldsTotal Total Frames Transmitted Conﬁguring Forwarding ThresholdsTotal Frames Forwarded Total Frames Received 15. Port Forwarding Thresholds Window Using the 7C0x SmartSwitch Bridge View Viewing the Forwarding Log To clear all logs or just the current log 17. The Polling Intervals Window Changing Polling Intervals Bridge Port Display Info Enabling and Disabling PortsEnabling and Disabling a Transparent Bridge Port Device Info Using the 7C0x SmartSwitch Bridge View Page Ietf MIB Support 7C0x SmartSwitch MIB Structure Chassis MGR IP ServicesTransparent Bridge Brief Word About MIB Components and Community Names Rmon DefaultHost Services Switch Services 7C0x SmartSwitch MIB Structure Numerics Index Index-2 Index-3 Index-4 Index-5 Index Index-6