Single Collisions, Pause Frames | Nortel Networks 10BASE-T guide

Using the BayStack 410-24T 10BASE-T Switch

Table 3-30.	Port Statistics Screen Fields (continued)

Field		Description

Collisions		Indicates the total number of collisions detected on this port.
Single Collisions		Indicates the total number of packets that were transmitted successfully on this
		port after a single collision.
Multiple Collisions		Indicates the total number of packets that were transmitted successfully on this
		port after more than one collision.
Excessive Collisions		Indicates the total number of packets lost on this port due to excessive collisions.
Deferred Packets		Indicates the total number of frames that were delayed on the first transmission
		attempt, but never incurred a collision.
Late Collisions		Indicates the total number of packet collisions that occurred after a total length of
		time that exceeded 512 bit-times of packet transmission.

The following field values appear only when the port selected in the Unit/Port field is configured with a gigabit MDA.

Pause Frames	Transmitted column: Indicates the total number of pause frames transmitted on this
	port. Pause frames cause the transmitting port to temporarily suspend the
	transmission of packets when the receiving port’s frame buffer is full (gigabit ports
	only).
	Received column: Indicates the total number of pause frames received on this port.
	Pause frames cause the transmitting port to temporarily suspend the transmission
	of packets when the receiving port’s frame buffer is full (gigabit ports only).

3-82	309985-C Rev 00

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Nortel Networks 10BASE-T manual Single Collisions, Pause Frames

Contents

Using the BayStack 410-24T 10BASE-T Switch Copyright 2000 Nortel Networks TrademarksStatement of Conditions USA Requirements Only Japan/Nippon Requirements Only Taiwan RequirementsCanada Requirements Only EC Declaration of Conformity Nortel Networks NA Inc. Software License Agreement Rev Page Contents Viii Chapter Installing the BayStack 410-24T Switch Chapter Using the Console Interface Chapter Troubleshooting Appendix B Media Dependent Adapters Appendix D Connectors and Pin Assignments Page Figures Vlan Configuration Spanning Multiple Switches IP Configuration/Setup Screen Standalone Switch Figure B-1 Figure C-3 Page Tables 102 Preface Switch View a sample BootP configuration file AudienceOrganization This guide has four chapters, six appendixes, and an index Text Conventions Acronyms Remote Authentication Dial-In User Services Reverse Address Resolution ProtocolRedundant power supply unit Media dependent adapter Related Publications How to Get Help Technical Solutions Center TelephonePage BayStack 410-24T Switch Description Front Panel Comm Port 10BASE-T Port Connectors Uplink/Expansion ModuleSlot BayStack 410-24T Switch LED Descriptions LED Display PanelProvides descriptions of the LEDs Label Type Color State Meaning CAS Up Stack mode Off Switch is in standalone mode Green BayStack 410-24T Switch Back Panel Back Panel Country/Plug description Specifications Typical plug AC Power ReceptacleInternational Power Cord Specifications Cooling Fans Rpsu ConnectorCascade Module Slot Features Telnet Introduction to the BayStack 410-24T Switch Virtual Local Area Networks VLANs BayStack 410-24T Switch Security Feature Security See MAC Address-Based Security on MAC Address-Based Security Snmp Security Ieee 802.1pRADIUS-Based Network Security Igmp Snooping Feature Configuration and Switch ManagementSwitch Software Image Flash Memory Storage Configuration Parameters Autosensing and Autonegotiation Port Mirroring MultiLink TrunkingIeee 802.1Q VLANs BootP Automatic IP Configuration/MAC Address Trap Name Configurable Sent when Snmp MIB SupportSnmp Trap Support Supported Snmp Traps Network Configuration Desktop Switch Application BayStack 410-24T Switch Used as a Desktop Switch Segment Switch Application BayStack 410-24T Switch Used as a Workgroup Switch High-Density Switched Workgroup Application Configuring Power Workgroups and a Shared Media Hub Fail-Safe Stack Application Fail-Safe Stack Example Stack Operation 10. Compatible Software Versions Using the BayStack 410-24T 10BASE-T Switch BayStack 400-ST1 Cascade Module Cascade a Out ConnectorUnit Select Switch Cascade a In Connector 12. Connecting Cascade Cables Base Unit Using the BayStack 410-24T 10BASE-T Switch Stack Configurations Stack Up Configurations Stack Down Configurations 14. Stack Down Configuration Example Redundant Cascade Stacking Feature 15. Redundant Cascade Stacking Feature Ieee 802.1Q Vlan Workgroups 16. Port-Based Vlan Example Ieee 802.1Q Tagging 17. Default Vlan Settings 18. Port-Based Vlan Assignment 20 .1Q Tag Assignment VLANs Spanning Multiple Switches VLANs Spanning Multiple 802.1Q Tagged Switches VLANs Spanning Multiple Untagged Switches 23. VLANs Spanning Multiple Untagged Switches 24. Possible Problems with VLANs and Spanning Tree Protocol Shared Servers 25. Multiple VLANs Sharing Resources 26. Vlan Broadcast Domains Within the Switch To configure the Vlan port membership for Vlan Default Vlan Configuration screen opens Figure To configure the Pvid port Vlan identifier for Port 28. Vlan Configuration Screen Example 29. Default Vlan Port Configuration Screen Example 30. Vlan Port Configuration Screen Example Vlan Workgroup Summary 31. Vlan Configuration Spanning Multiple Switches Vlan Configuration Rules Igmp Snooping 32. IP Multicast Propagation With Igmp Routing 33. BayStack 410-24T Switch Filtering IP Multicast Streams 1 34. BayStack 410-24T Switch Filtering IP Multicast Streams 2 Igmp Snooping Configuration Rules Ieee 802.1p Prioritizing 35. Prioritizing Packets 36. Port Transmit Queue To configure the port priority level, follow these steps Traffic Class Configuration screen opens Figure Vlan Port Configuration screen opens Figure 38. Setting Port Priority Example 39. Switch-to-Switch Trunk Configuration Example MultiLink Trunks Client/Server Configuration Using MultiLink Trunks 40. Switch-to-Server Trunk Configuration Example 41. Client/Server Configuration Example Setting Up the Trunk Configuration for S1 Trunk Configuration Screen ExamplesTrunk Configuration Screen for Switch S1 MultiLink Trunk Configuration screen opens Figure 43. MultiLink Trunk Configuration Screen for Switch S1 Using the BayStack 410-24T 10BASE-T Switch Trunk Configuration Screen for Switch S2 44. MultiLink Trunk Configuration Screen for Switch S2 Using the BayStack 410-24T 10BASE-T Switch Trunk Configuration Screen for Switch S3 45. MultiLink Trunk Configuration Screen for Switch S3 Using the BayStack 410-24T 10BASE-T Switch Trunk Configuration Screen for Switch S4 46. MultiLink Trunk Configuration Screen for Switch S4 Using the BayStack 410-24T 10BASE-T Switch Before Configuring Trunks MultiLink Trunking Configuration Rules Using the BayStack 410-24T 10BASE-T Switch 47. Loss of Distributed Trunk Members Spanning Tree Considerations for MultiLink Trunks 48. Path Cost Arbitration Example 49. Example 1 Correctly Configured Trunk 50. Example 2 Detecting a Misconfigured Port Additional Tips About the MultiLink Trunking Feature Port Mirroring Conversation Steering Port-Based Mirroring Configuration 51. Port-Based Mirroring Configuration Example Using the BayStack 410-24T 10BASE-T Switch Address-Based Mirroring Configuration 52. Port Mirroring Port-Based Screen Example 53. Address-Based Mirroring Configuration Example 54. Port Mirroring Address-Based Screen Example Port Mirroring Configuration Rules Installing the BayStack 410-24T Switch Installation Requirements Contents will be the same Installation Procedure Installing the BayStack 410-24T Switch on a Flat Surface Installing the BayStack 410-24T Switch in a Rack Positioning the Chassis in the Rack Attaching Mounting Brackets Attaching Devices to the BayStack 410-24T Switch Connecting 10BASE-T Ports and 10/100 MDA Ports BASE-T Port Connections Connecting Fiber Optic MDA Ports Fiber Optic Port Connections Console/Comm Port Connecting a Terminal to the Console/Comm Port To connect a terminal to the Console/Comm port Connecting Power BayStack 410-24T Switch AC Power Receptacle Grounded AC Power Outlet Verifying the Installation Verifying the Installation Using the LEDsPower-Up Sequence Stage Description LED indication Verifying the Installation Using the Self-Test Screen Configuration includes an additional test Cascade Sram test 12. Nortel Networks Logo Screen Initial Setup Standalone Switch Setup 13. Main Menu for Standalone Switch 14. IP Configuration/Setup Screen Standalone Switch Stack Setup 15. Main Menu Standalone Switch Example 17. IP Configuration/Setup Screen Stack Configuration Installing the BayStack 410-24T Switch Page Chapter Using the Console Interface Using the CI Menus and Screens Navigating the CI Menus and Screens Screen Fields and Descriptions Map of Console Interface Screens Main Menu Console Interface Main Menu Describes the CI main menu options Console Interface Main Menu options Configuration File Save Current SettingsReset Reset to Default OptionDescription Logout IP Configuration/Setup IP Configuration/Setup Screen Describes the IP Configuration/Setup screen fields IP Configuration/Setup Screen Fields Choosing a BootP Request Mode FieldDescriptionIP Address to Ping BootP Disabled BootP or Last Address BootP When Needed BootP Always Snmp Configuration Describes the Snmp Configuration screen fieldsSnmp Configuration Screen Fields Field Description Read-Only Snmp Configuration Screen Fields System Characteristics Describes the System Characteristics screen fields System Characteristics Screen Fields System Characteristics Screen Fields Switch Configuration Describes the Switch Configuration Menu screen options Switch Configuration Menu Screen Options Switch Configuration Menu Screen Options MAC Address Table MAC Address Table Screen Describes the MAC Address Table screen fields MAC Address Table Screen FieldsField Description Aging Time Find an Address MAC Address-Based Security MAC Address Security Configuration Menu MAC Address Security Configuration MAC Address Security Configuration Menu Options MAC Address Security Configuration Screen MAC Address Security Configuration Screen Fields Field Description MAC Address SecuritySNMP-Locked Partition Time MAC Address Security Port Configuration 10. MAC Address Security Port Configuration Screen 1 11. MAC Address Security Port Configuration Screen 2 MAC Address Security Port Configuration Screen Fields Field Description UnitPort Trunk MAC Address Security Port Lists 12. MAC Address Security Port Lists Screens 5 Screens Port List MAC Address Security Port Lists Screen FieldsField Description Entry Port List Syntax Copying an Existing Field into an Adjacent Field Adding a New Port to an Existing Port Number ListRemoving a Port from an Existing Port Number List MAC Address Security Table 14. MAC Address Security Table Screens 16 Screens 15. MAC Address Security Table Screen Allowed Source MAC Address Security Table Screen FieldsField Description Find an Address Vlan Configuration Menu 12 describes the Vlan Configuration Menu screen options 12. Vlan Configuration Menu Screen Options Vlan Configuration Field Description Create Vlan 13 describes the Vlan Configuration screen fieldsVlan Configuration Screen Fields Vlan Type Protocol Id PID 13. Vlan Configuration Screen Fields Field Description User-defined PIDVlan State Port Membership Predefined Protocol Identifier PID PID Name Encapsulation PID Value hex Vlan Type Reserved PIDs PID Value hex Comments Gigabit Ports and BayStack 410-24T Switch Ports Restriction Vlan Port Configuration Filter Tagged Frames 16 describes the Vlan Port Configuration screen fieldsVlan Port Configuration Screen Fields 16. Vlan Port Configuration Screen Fields Vlan Display by Port 19. Vlan Display by Port Screen Traffic Class Configuration Field Description User Priority 18 describes the Traffic Class Configuration screen fieldsTraffic Class Configuration Screen Fields Rev Port ConfigurationPort Configuration Screen 1 19 describes the Port Configuration screen fields Port Configuration Screen Fields High Speed Flow Control Configuration LnkTrapAutonegotiation Speed/Duplex1 23. High Speed Flow Control Configuration Screen 20. High Speed Flow Control Configuration Screen Fields Choosing a High Speed Flow Control Mode High Speed Flow Control Configuration Screen Fields Asymmetric Mode MultiLink Trunk ConfigurationSymmetric Mode Utilization 21. MultiLink Trunk Configuration Menu Screen OptionsOption Description MultiLink Trunk MultiLink Trunk Configuration Screen MultiLink Trunk Configuration Screen Fields Field Description Trunk MultiLink Trunk Configuration Screen Fields MultiLink Trunk Utilization Screen 26. MultiLink Trunk Utilization Screen 1 23 describes the MultiLink Trunk Utilization screen fields MultiLink Trunk Utilization Screen FieldsTraffic Type Unit/Port Port Mirroring Configuration 23. MultiLink Trunk Utilization Screen FieldsField Description Last 5 Minutes Last 30 Minutes 24 describes the Port Mirroring Configuration screen fields 24. Port Mirroring Configuration Screen Fields Field Description Monitor Unit/Port Unit/Port YAddress a Address B Address-based Monitoring ModesFields Description Port-based Rate Limiting Configuration 29. Rate Limiting Configuration Screen 1 30. Rate Limiting Configuration Screen 2 26 describes the Rate Limiting Configuration screen fields Rate Limiting Configuration Screen FieldsPacket Type Limit 27. Igmp Configuration Menu Screen Options Igmp Configuration Menu27 describes the Igmp Configuration Menu screen options Membership Igmp ConfigurationOption Description Display Multicast Group Field Description 28 describes the Igmp Configuration screen fieldsIgmp Configuration Screen Fields Igmp Configuration Screen Fields Configuring Ports as Static Router Ports 28. Igmp Configuration Screen Fields Multicast Group Membership Option Description 29 describes the Multicast Group Membership screen optionsMulticast Group Membership Screen Options Port Statistics 34. Port Statistics Screen Port Statistics Screen Fields 30 describes the Port Statistics screen fieldsGigabit MDA Port Statistics Screen Fields Single Collisions Pause Frames ATM Configuration Menu 35. ATM Configuration Menu Screen Before Configuring Your ATM MDA 31 describes the ATM Configuration Menu screen options LEC Configuration31. ATM Configuration Menu Screen Options MDA Software 32 describes the LEC Configuration screen fields LEC Configuration Screen Fields LEC Configuration Screen Fields ATM MDA Configuration 32. LEC Configuration Screen Fields 33 describes the ATM MDA Configuration screen fields ATM MDA Configuration Screen Fields User Defined UNI Version ATM MDA Software Download Field Description PHY Type Tftp Server IP Address 34 describes the ATM MDA Software Download screen fields34. ATM MDA Software Download Screen Fields Using the Console Interface Console/Comm Port Configuration 35. Console/Comm Port Configuration Screen Fields Baud, 4800 Baud, 9600 Baud, 19200 Baud, 38400 Baud FieldDescription Console Switch Password TypeTelnet Switch Console Stack Switch Password Field Description Telnet StackConsole Read-Only Console Read-Write An Ascii string of up to 15 printable characters Any Ascii string of up to 15 printable characters Server Renumber Stack Units 40. Renumber Stack Units Screen 36 describes the Renumber Stack Units screen options 36. Renumber Stack Units Screen Options Spanning Tree Configuration Hardware Unit Information 37. Spanning Tree Configuration Menu Screen Options Return to Main Menu Spanning Tree Port Configuration 43. Spanning Tree Port Configuration Screen 1 44. Spanning Tree Port Configuration Screen 2 Spanning Tree Port Configuration Screen Fields Spanning Tree Port Configuration Screen Fields Display Spanning Tree Switch Settings 45. Spanning Tree Switch Settings Screen Parameter Description 39 describes the Spanning Tree Switch Settings parameters39. Spanning Tree Switch Settings Parameters Parameter Description Forward Delay DelayBridge Hello Time TELNET/SNMP Manager List Configuration 46. TELNET/SNMP Manager List Configuration Screen 40. TELNET/SNMP Manager List Configuration Screen Fields Login Timeout Login Retries Inactivity Event Logging Mask Field Description Allowed SourceIP Address Software Download 41 describes the Software Download screen fields 41. Software Download Screen Fields LED Indications During the Download Process New Image Link status LEDs ports 18 to 24 only The LEDs begin to Phase Description LED Indications42. LED Indications During the Software Download Process Configuration File 48. Configuration File Download/Upload Screen 43. Configuration File Download/Upload Screen Fields Copy ConfigurationRetrieve Configuration Image to Server Parameters Not Saved to the Configuration File These parameters are not saved Used in this screen See Display Event Log 49. Event Log Screen Excessive Bad Entries 50. Sample Event Log Entry Showing Excessive Bad Entries Flash Update Write Threshold Save Current Settings Reset 53. Self-Test Screen After Resetting the Switch 54. Nortel Networks Logo Screen Reset to Default Settings 55. Self-Test Screen After Resetting to Default Settings 129 57. Password Prompt Screen Logout Chapter Troubleshooting Interpreting the LEDs Troubleshooting Diagnosing and Correcting the Problem Corrective Actions Normal Power-Up SequenceSymptom Probable cause Corrective action Port Connection Problems See Port Connection Problems on Autonegotiation Modes Port Interface Error code Description Corrective action Software Download Error CodesSoftware Download Error Codes Center Page Parameter Operating Specification Storage Specification Parameter SpecificationsEnvironmental Electrical Network Protocol and Standards Compatibility Physical DimensionsPerformance Specifications Safety Agency Certification Data RateInterface Options Electromagnetic Emissions Electromagnetic Immunity Declaration of Conformity Appendix B Media Dependent Adapters Type Model/Description See 10BASE-T/100BASE-TX MDA Label Description 100BASE-FX MDAs Figure B-2 BASE-FX MDA Front Panels Table B-2 BASE-FX MDA Components Installing an MDA Figure B-3. Installing an MDA When replacing an installed MDA Remove the AC power cord from the power sourceReplacing an MDA Loosen the thumbscrews and remove the MDAPage Appendix C Quick Steps to Features To learn more about See Configuring 802.1Q VLANs To create or modify an 802.1Q VLAN, follow the flowcharts Figure C-2. Configuring 802.1Q VLANs 2 Figure C-3. Configuring 802.1Q VLANs 3 Configuring the BayStack 450-2M3/2S3 MDAs Figure C-4. Configuring the BayStack 450-2M3/2S3 MDA 1 Figure C-5. Configuring the BayStack 450-2M3/2S3 MDA 2 Figure C-6. Configuring the BayStack 450-2M3/2S3 MDA 3 Configuring MultiLink Trunks Figure C-7. Configuring MultiLink Trunks Configuring Port Mirroring Figure C-8. Configuring Port Mirroring 1 Figure C-9. Configuring Port Mirroring 2 Configuring Igmp Snooping Figure C-10. Configuring Igmp Snooping 1 Figure C-11. Configuring Igmp Snooping 2 Figure C-12. Configuring Igmp Snooping 3 Page RJ-45 10BASE-T/100BASE-TX Port Connectors Figure D-1. RJ-45 8-Pin Modular Port Connector MDI and MDI-X Devices Table D-1 RJ-45 Port Connector Pin AssignmentsPin Signal Description MDI-X to MDI Cable Connections Figure D-2. MDI-X to MDI Cable Connections MDI-X to MDI-X Cable Connections Figure D-3 MDI-X to MDI-X Cable Connections DB-9 RS-232-D Console/Comm Port Connector Table D-2 DB-9 Console/Comm Port Connector Pin AssignmentsPage Appendix E Default Settings Appears in this CI screen Field Default setting Using the BayStack 410-24T 10BASE-TSwitch Default Settings Using the BayStack 410-24T 10BASE-T Switch LEC Console Switch Password Type 40 on Using the BayStack 410-24T 10BASE-T Switch Appendix F Sample BootP Configuration File Using the BayStack 410-24T 10BASE-T Switch Index Index-2 Index-3 Index-4 Index-5 Index-6