3Com manual Dual T1/PRI Status Displays

Page 41

Dual T1/PRI Status Displays

4-7

■Unavailable Secs

The DS1 is determined to be unavailable. All other counters will stop. Any layer 1 condition or 10 consecutive SES events will lead to DS1 unavailability. Ten consecutive non-SESs (no alarm condition) will clear the unavailability.

■Bipolar Violations

This indicates bipolar violations (BPV) in the line format being used. A BPV occurs when two consecutive non-zero elements of the same polarity occur in an alternate mark inversion (AMI) signal.

■Framing Bit Errors

This indicates an error in the framing bit used to determine frame alignment. The framing bit error count is reported.

■Change in Frame Alignment (CFA)

This indicates that a receiver has reframed on a new framing pattern, and synchronized at a new frame alignment due to an OOF condition. The status report indicates whether or not a CFA occurred. A counter records the number of times a CFA occurred since the latest counter reset.

■Controlled Slip Secs (Frame Slips)

■

■

These are caused either by frames deleted due to buffer overflow (BOF) or frames repeated due to buffer underflow (BUF). The status report indicates whether or not a BOF or BUF condition occurred. A counter records the number of times a condition occurred since the latest counter reset.

Severely Err Framing Secs (SEFS)

Any second with an OOF or AIS condition is counted as an SEFS.

Bursty Errored Seconds

This occurs in ESF format only. It reports CRC error conditions in seconds.

■CRC Errors

This occurs only in ESF format when a CRC bit is in error. The CRC error count is reported.

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Contents
Version Number Dual T1/PRIDual T1/PRI 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Configuring the span line’s interface ID Dual T1/PRI Maintenance Trouble Clearing Page Finding Specific About this ReferenceInformation This Reference If you are looking for Turn toIcon Description ConventionsThis table lists conventions used throughout this reference Accessing Supported FeaturesOverview User InterfaceCallout # Configuring Span Dual T1/PRI ConfigurationLines 1 Interface UI console’s main menuMenu Option 2 Configuring the span line’s line coding Menu Option 1 Configuring the span line’s framing modeFraming mode selects the T1 format Menu Option 4 Configuring the span line’s jitter attenuation This diagram represents this processMenu Option 7 Configuring the span line’s idle bit pattern Menu Option 6 Configuring for the Telco’s switch typeDS0#sl#/ch# Menu Option 8 Mapping the span line’s DS0s to chassis modemsMenu Option 10 Configuring the span line’s interface ID Menu Option 9 Configuring the span line’s signaling channelMenu Option 11 Configuring span level call-type blocking Menu Option 12 Configuring span level cause codesFollowing types of cause codes are supported Menu Option 13 Configuring the DS0 level call-type blockingCause Code Type Default Cause Code Value Description DSS DS0#, DS0#, DS0#-DS0#,... for multiple DS0s Menu Option 14 Configuring the DS0 level service stateMenu Option 15 Configuring the Short Haul NIC line length Any changes made will take effect immediately Inbound Call ConfiguringRouting Menu Option 1 Selecting a Gateway to process digital callsPHIDX#ph=PH#,ct=x Configuring inbound call routingIDP# Idpt Use the following syntax to assign a pool type to a pool IDSaved to Nvram will be restored Menu Option 1 Saving configuration changes to NvramCard Menu Option 9 Allowing ISDN-GWC terminationMenu Option 3 Restoring the default configuration Menu Option 2 Restoring configuration from NvramMenu Option 5 Configuring chassis slot devices Menu Option 4 Assigning timing source priorityMenu Option 8 Enabling automatic DS0 state change Menu Option 6 Configuring the modem routing methodMenu Option 7 Configuring the UI console password Menu Option 9 Companding Code Configuration Configuring Software Fault Event LoggingCommands Dual T1/PRI MaintenanceCommands and logging out of the user interface UI console Dual T1/PRIMenu Option 2 Resetting the PRI NAC Menu Option 1 Resetting the highest priority timing sourceIssuing this command reboots the NAC Selecting option 1 from the main menu produces this screenMenu Options Forcing receiver reframe on the span linesForcing the NAC to master the TDM bus Changing individual DS0 service states Menu Option 11 Disabling red Alarm LEDsChanging span line service state Connect/disconnect B-channel on span lines 1Feature in the card configuration option of the main menu Command, from the console’s main menuLogging Out UI ConsoleDual T1/PRI Status Dual T1/PRI Status DisplaysDisplays From the user interface UI console’s main menuRAM Menu Option 1 Checking power-up self test statusMenu Option 2 Checking the T1/PRI’s overall status Menu Option 3 Checking chassis slot device configurationsNo NAC is installed and assigned to that particular slot Menu Option 5 Checking the chassis’ Isdn gateway status Menu Option 4 Checking DS0/modem channel statusChecking span line 1 and 2’s DS0 status Time slot is available and awaiting a call Checking span line 1 and 2’s alarm/event statusNetServer PRI NAC Time slots are mapped toDual T1/PRI Status Displays 8CHAPTER 4 Dual T1/PRI Status Displays Press Ctrl-Rto reset any of the counters on this screen Indicate line signal conditions Using the LEDsTrouble Clearing Trouble clearing informationLevels Alarm Severity ResultCD 1 or Alrm 1 or Lpbk 1 or T1 Condition LED Color Layer 2 D-channel StatusAlarm/Error Level Trouble Clearing Correcting Alarm/Error ConditionsOff and signaling Channel Down Certification Technical SpecificationsCurrent Draw Regulatory United States ComplianceEnvironment Physical DimensionsShipping and Storage OperatingCertification B-1 IndexINDEX-2
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