Cabletron Systems CSX200, CSX400 manual Severely Errored Seconds, Severely Errored Framing Seconds

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Bridging

Coding Violations are Bit Interleaved Parity (BIP) errors that are detected in the incoming signal (as described below).

Severely Errored Seconds

The number of Severely Errored Seconds, or Far-End Severely Errored Seconds, encountered by a SONET/SDH Path in the speciÞed interval.

A Severely Errored Second (SES) is a second with X or more coding violations (bit parity errors) reported at the Section, Line, or Path layer of the SONET link, or a second during which at least one or more incoming defects (e.g., Loss of Signal, Loss of Pointer, or Loss of Frame) has occurred at that layer. The statistic provided in this Þeld is provided by the STS-Path level of the link.

Values of X at each layer depend on the linkÕs line rate and the Bit Error Rate. For the STS-Path layer, with a line rate of 51.84 Mbps (STS-1) and a BER of 1.5 x 10-7, X is 9; with a line rate of 155.52 Mbps (STS-3) and a BER of 1 x 10-7, X is 16.

If the FE100-Sx or APIM-2x is experiencing consecutive Severely Errored Seconds, it may indicate an impending period of network unavailability (which begins at the onset of 10 consecutive SESs). Periods of unavailability can severely impact service (e.g., the disconnection of switched services). Availability is restored at the onset of 10 consecutive error-free seconds.

Severely Errored Framing Seconds

The counter associated with the number of Severely Errored Framing Seconds encountered by a SONET/SDH Section in the speciÞed interval. A Severely Errored Framing Second (SEFS) is a second containing one or more SEF events. This counter is only counted at the Section Layer, and is not available as a Far-End counter.

Code Violations

The number of Coding Violations (CVs) encountered by a SONET/SDH Path interface, or the number of Far-End Coding Violations reported via the far-end block error count to the monitored SONET/SDH Path interface, in the speciÞed interval.

Coding Violations are Bit Interleaved Parity (BIP) transmission errors that are detected in the incoming signal. Bit Interleaved Parity is a check at the receiving interface that groups all bits in a block into a unit (e.g., a byte), then veriÞes the block for parity for each bit position in the group by making sure that the number of bits set to the value Ô1Õ is either even or odd, as reported by the transmitting entity.

SONET Port Configuration

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Contents CSX200 and CSX400 User’s Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Bridging Vii Token Ring Physical Status Fields IndexIntroduction HSIM-W6 and HSIM-W84 Using the CSX 200 and CSX400 User’s GuideRelated Manuals Common Window Fields Software ConventionsDevice Name MAC Address Using the MouseIP Address LocationUsing Window Buttons Getting Help Using On-line HelpGetting Help from the Cabletron Systems Global Call Center CSX200 and CSX400 Firmware CSX200 and 400 Chassis View CSX200 and CSX400 Chassis View Windows Viewing Chassis InformationFront Panel Information Time Menu StructureDate Port Status Menu Device MenuHelp Menu Utilities MenuPort Menus Selecting a Port Status View CSX200/400 Port Status DisplaysStatus Load Port Status Color Codes Chassis Manager WindowDevice Type Viewing Hardware TypesViewing the Port Description Managing the DeviceViewing I/F Summary Information Using the Find Source Address FeatureDescription IndexRaw Counts Physical StatusLogical Status Interface Performance Statistics/Bar GraphsRate Detail Interface Statistics Viewing Interface DetailNon-Unicast ErrorAddress UnicastPackets Transmitted Transmit only Enabling and Disabling PortsMaking Sense of Detail Statistics CSX200 and 400 Chassis View CSX200 and 400 Chassis View Managing the Device About the CSX200 Series CSX200 and CSX400 WAN ConfigurationWAN Redundancy About the CSX400WPIM-DDS CSX WPIMsEIA-RS449 WAN Logical View Window WAN Logical ViewWAN Logical View Window Fields Changing WAN Logical SettingsCSX200 and CSX400 WAN Configuration CSX200 and CSX400 WAN Configuration WAN Logical View Bridging Basics BridgingAbout Source Route Bridging About Transparent BridgingBridging About Source Route-Translational Bridges About Source Route-Transparent BridgesBridging Viewing and Managing Bridging Interfaces Bridging Bridge Status Window Information Fields Bridge Status WindowBridge State on Interface Up TimeInterface Type Accessing Other Options from the Bridge Status WindowBridge Address Bridging Bridging Bridging Enabling and Disabling Individual Interfaces Enabling and Disabling BridgingFrom the Bridge Status window From the Chassis View window Enabling and Disabling All Installed InterfacesBridge Statistics Performance GraphsFrom the Bridge Status window Frames Forwarded Green Bridge Performance Graph Window FieldsFiltered Magenta Bridge Detail Breakdown Window Errors RedXmitted Blue Configuring the Bridge Performance GraphsFiltered Frames ForwardedForwarded from XmittedBridge Port Detail Breakdown Window Forwarded toI/F Statistics Window Interface Statistics WindowStatistics Window Fields Transmit Queue Size Csmacd Statistics WindowUnknown Protocol Packets ReceivedAlignment Receive ErrorsTransmission Errors PPP Link Statistics Window Collision ErrorsPackets Too Long ErrorsBad Addresses Bad ControlsStatistics Dot5 Errors Statistics Window Burst Errors Line ErrorsSoft Errors Internal ErrorsCongestion Errors Token ErrorsSource Route Statistics All Paths Expl Bridge Source Routing Window FieldsReceived Frames Specif. RoutedDiscards Transmitted FramesHop Cnt. Exceeded Bridge Spanning TreeBridge Level Fields Configuring the Bridge Spanning Tree WindowBridge Priority Root Cost Root BridgeRoot Port Bridge Port Level Fields Designated Bridge Path CostDesignated Cost Designated RootChanging Bridge Priority Changing Bridge Spanning Tree ParametersChanging the Spanning Tree Algorithm Protocol Type Changing Hello Time Changing Forwarding Delay TimeChanging Max Age Time Changing Port Priority Filtering DatabaseChanging Path Cost Bridging From the Bridge Status window Capacity Filtering Database Window FieldsList NumberReceive Port Configuring the Filtering DatabaseAging Time Source PortChanging the Type of Entry Altering the Aging TimeChanging the Port Filtering Action Changing the Receive PortAdding or Deleting Individual Entries Clearing All Permanent, Static, or Dynamic Entries Ethernet and Token Ring Special Filter DatabasesEthernet Special Filter Database Window 13. Ethernet Special Filter Database Window Token Ring Special Filter Database WindowDestination Address EnableSpecial Filter Database Window Fields FileDefining and Editing Filters in the Special Database This Changing the Receive Ports Setting the Port Filtering ActionChanging the Port Filtering Action Saving a Set of Filters to a File Enabling and Disabling a FilterClearing the Port Filtering Action Source Route Configuration 16. Source Route ConÞguration Window Information on Source RoutingSource Route Configuration Fields Source Route Configuration WindowHop Count Limit Subnet MaskLocal Segment Target SegmentBridge Number Spanning Tree ExplSpanning Tree Mode Making and Setting Changes Using the Find Source Address FeaturePort Source Addresses Window Setting the Aging Time Duplex Modes Duplex Modes Window Fields Duplex Modes WindowInterface Full Duplex Setting the Duplex ModeEthernet Port Configuration Window Standard ModeFast Ethernet Port Configuration Port Type Current Operational ModeLink State Advertised Abilities Desired Operational ModeRemote Capabilities Setting the Desired Operational Mode for the FE-100FX Setting the Desired Operational Mode for the FE-100TXSONET/SDH Configuration Sonet Port ConfigurationSonet SONET/SDH Statistics Window Bridging 24. The SONET/SDH Statistics Window Loss of Pointer Loss of SignalLoss of Frame Errored SecondsSeverely Errored Framing Seconds Severely Errored SecondsCode Violations Configuring Broadcast Suppression Token Ring Bridge Mode Source Routing Setting The Token Ring Bridge ModeDefining the Bridge Modes TransparentActive Port Using the Physical View WindowsEtwmim Ethernet Port Physical View Ethernet Port Physical Status FieldsEpim Type Etwmim Token Ring Port Physical ViewRing Speed Token Ring Physical Status FieldsRing State Active Monitor FNB StateUsing the Interface Configuration Window 29. Interface ConÞguration Window Defining the Bridge MethodOther Setting the Bridge MethodNetBIOS Defining the Protocol TransmissionUsing the Bridge and Port Configuration Windows From the Bridge Status window Ring Number Virtual Ring NumberNovell Translation Port ModeBridge Mode/Explorer Type Configuring SmartTrunking Name Port# SmartTrunks ModeSmartTrunk State InstanceBridging Bridging 100 Configuring SmartTrunking Index Index-2 Index-3 Index-4
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CSX200, CSX400 specifications

Cabletron Systems was a leading developer of networking solutions, and its CSX400 and CSX200 series of high-performance switches represent some of the key innovations in the field of enterprise networking during their time. Both models were geared towards enhancing network reliability, efficiency, and speed, particularly in environments where heavy data traffic and complex networking demands were prevalent.

The CSX400, designed for larger enterprises, boasts a robust architecture capable of handling significant throughput. One of its standout features is its stackable design, allowing multiple switches to be interconnected and managed seamlessly as a single unit. This scalability provides organizations with the flexibility to expand their networks without significant infrastructure overhauls. The CSX400 supports various Ethernet standards, including 10/100 Ethernet and Gigabit Ethernet, positioning it to effectively manage both legacy and modern networking requirements.

In addition to its scalability, the CSX400 is distinguished by its advanced Layer 2 and Layer 3 routing capabilities. This dual-layer functionality enables efficient data handling and is instrumental in managing traffic between different network segments. Moreover, the switch incorporates features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS) prioritization, allowing for enhanced performance of critical applications and streamlined bandwidth allocation.

On the other hand, the CSX200 series is tailored for smaller enterprises or branch offices needing a reliable yet efficient networking solution. Despite its compact design, the CSX200 is equipped with essential features that promote effective network management and security. It offers a simplified management interface, making it user-friendly for network administrators. The switch also provides essential access control measures, employing technologies like IEEE 802.1X for network access security.

Both the CSX400 and CSX200 prioritize performance through the incorporation of advanced switching technologies. They support features such as Spanning Tree Protocol (STP), enabling loop-free topologies and enhanced network resilience. These attributes are particularly crucial in dynamic networking environments where downtime can have significant repercussions on business operations.

Overall, Cabletron Systems' CSX400 and CSX200 series represent a blend of scalability, advanced routing capabilities, and user-friendly management, making them vital assets for organizations looking to optimize their network infrastructure during a period of rapid technological evolution. With their rich feature sets and unwavering performance, these switches helped pave the way for modern networking solutions that cater to diverse enterprise needs.
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