user manual
Table Of Contents
- Contents
- About This Guide
- Overview
- Starting Up
- Integrated Fast Setup
- Using the Local Management Application
- Configuring the Platform
- Password Setup
- Setting Up for Management
- Display Current IP Configuration
- Update IP Address
- Display Current NMS IP Address
- Update NMS Address
- Display Current Default Gateway IP Address
- Update Default Gateway IP Address
- Display Current IP Subnet Mask
- Update IP Subnet Mask
- Display Current Read Community String
- Update Read Community String
- Display Current Write Community String
- Update Write Community String
- Display Ethernet Encapsulation Type
- Update Ethernet Encapsulation Type
- Set Management Configuration to Factory Defaults
- Setting the Port Network Connection Type
- Resetting All Parameters
- Downloading System Software
- Managing Switch Fabric Modules
- Configuring Interface Modules
- Logging Out and Rebooting
- ATM Features and Software Versions
- LECS ATM Address
- Setting Up the Switch Clock Source
- Managing Network Interfaces
- ILMI Setup
- Display ILMI Version
- Update ILMI Version
- Display Auto-configuration Status
- Update Auto-configuration Status
- Display Auto-discovery Status
- Update Auto-discovery status
- Display LECS Access Options
- Update LEC/LECS Communication Channel
- Display ILMI Channel Polling Status
- Update ILMI Channel Polling Status
- Display ILMI Channel Polling Interval
- Update ILMI Channel Polling Interval
- ATM Addresses Port Table
- Network Prefix
- ILMI Setup
- Configuring Virtual Channels
- Viewing Statistics
- Managing LAN Emulation
- LAN Emulation Setups
- LAN Emulation Services Setup
- LAN Emulation Redundancy Setup
- LANE Version of Switch
- MPOA Devices Configuration
- Display Current MPS Configuration
- Set Keep-Alive Time
- Set Keep-Alive Lifetime
- Set Internetwork Layer Protocols
- Set Initial Retry Time
- Set Retry Time Maximum
- Set Give Up Time
- Set Default Holding Time
- Display Current MPC Configuration
- Set Shortcut Setup Frame Count
- Set Shortcut Setup Frame Time
- Set Flow Detection Protocols
- Set Initial Retry Time
- Set Retry Time Maximum
- Set Hold Down Time
- LAN Emulation Configuration Service (LECS) Operations
- LECS Address
- LECS Search Policy
- LECS ELAN Database Operations
- Display ELANs
- Display ELAN Parameters in LECS Database
- Update ELAN Parameters in LECS Database
- Display ELAN MAC Addresses
- Delete ELAN MAC Address
- Add ELAN MAC Address
- Display ELAN ATM Addresses
- Delete ELAN ATM Address
- Add ELAN ATM Address
- Add ELAN
- Delete ELAN
- Configure Segment ID
- LECS Database Statistics
- Reset LECS
- Display LECS Maximum Connection Number
- Update LECS Maximum Connection Number
- LAN Emulation Redundancy
- LAN Emulation Service (LES) Operations
- LES Address
- ELAN Parameters
- LE_ARP Policy Configuration
- Display ELAN Response Policy
- Update ELAN Response Policy
- Display LE_ARP Response Policy
- Update LE_ARP Response Policy
- Display LE_ARP Response Policy for Route Descriptor
- Update LE_ARP Response Policy for Route Descriptor
- Reset LES Configurations
- Display LANE Multicast Forward Delay
- Update LANE Multicast Forward Delay
- LEC Operations
- LAN Emulation Statistics
- LAN Emulation Setups
- LEC ELAN Admission Security
- Configuring and Managing PNNI
- Viewing the Current PNNI State
- Configuring PNNI Nodes
- Get Number of Nodes
- Get Enhanced 164 Address Support State
- Set & Save Enhanced E.164 Address Support State
- Get Node Index
- Get Node Administrative Status
- Set Node Administrative Status to UP
- Set Node Administrative Status to DOWN
- Purge PNNI Database
- Get Node Level
- Set Node Level
- Get ATM Address
- Set Default ATM Address
- Set ATM Address
- Get Peer Group ID
- Set Peer Group ID
- Get Node ID
- Set Default Node ID
- Set Node ID
- Get Node Name
- Set Node Name
- Get PGL Priority
- Set PGL Priority
- Setting the Timers
- Set PTSE Holddown Timer
- SetHello Holddown Timer
- Set Hello Interval
- Set Hello Inactivity Factor
- Set PTSE Refresh Interval
- Set PTSE Lifetime Factor
- Set Retransmit Interval
- Set Peer Delayed ACK Interval
- Set AvCR Proportional Multiplier (%)
- Set AvCR Minimum Threshold (%)
- Set CDV Proportional Multiplier (%)
- Set CTD Proportional Multiplier (%)
- Set SVCC Initiation Time
- Set SVCC Retry Time
- Set SVCC Calling Integrity Time
- Set SVCC Called Integrity Time
- Set All Timers to Their Default Values
- Setting Optimization Metrics
- Setting Interface Parameters
- Managing the Scope Mapping Table
- Configuring the Route Cache
- Showing PNNI Information
- ATM Switch Fabric Module Specifications
- Menu Index
- Technical Support
- Glossary
- Index
- 3Com Corporation Limited Warranty
Physical Layer Statistics
191
Table 27 Physical Layer Statistics
Statistic Description
SONET section level BIP errors (B1) Section BIP-8 - bit-interleaved parity code 8 - even parity for
error monitoring
SONET section level BIP errors (B2) Line BIP-8 - line error monitoring
SONET section level BIP errors (B3) Path BIP-8 - path error monitoring
SONET loss of signal state (LOS) Loss of signal. The loss of signal defect is declared when no
transitions are detected on the incoming signal (before
descrambling). The LOS defect is detected upon observing 2.3
to 100 microseconds of no transitions. The defect is cleared
after a 125 microsecond interval (one frame) during which no
LOS defect is detected.
SONET loss of frame state (LOF) Loss of frame. A loss of frame defect is declared when an
OOF/SEF defect persists for a period of 3 milliseconds. The
LOF defect is terminated when the incoming signal remains
continuously in-frame for a period of 1 ms to 3 ms.
SONET loss of pointer state (LOP) Loss of pointer. A loss of pointer defect is declared when
either a valid pointer is not detected in eight consecutive
frames, or when eight consecutive frames are detected with
the New Data Flag (NDF) set to “1001” without a valid
concatenation indicator. A LOP defect is terminated when
either a valid pointer with a normal NDF set to “0110”, or a
valid concatenation indicator is detected for three contiguous
frames.
SONET out of cell delineation state (OCD)
SONET path alarm indication signal state (Path AIS)
SONET line alarm indication signal state (Line AIS)
The AIS is an all-ONES characteristic or adapted information
signal. It is generated to replace the normal traffic signal
when it contains a defect condition in order to prevent
consequential downstream failures being declared or alarms
being raised.
AIS can also be identified as:
- AIS-L (Line Alarm Indication Signal)
- SP-AIS (STS Path Alarm Indication Signal)
- VP-AIS (VT Path Alarm Indication Signal)
SONET line remote defect indication state (Line RDI)
SONET path remote defect indication state (Path RDI)
A signal returned to the transmitting Terminating Equipment
upon detecting a Loss of Signal, Loss of Frame, or AIS defect.
RDI was previously known as FERF.
RDI can also be identified as:
- RDI-L (Line Remote Defect Indication)
- RDI-P (STS Path Remote Defect Indication)
- RDI-V (VT Path Remote Defect Indication)