Diagnosing and correcting problems | Nortel Networks 1000BASE-ZX

Chapter 4 Troubleshooting 175

Table 42 BayStack 420 Switch LED descriptions (continued)

Label	Type	Color	State	Meaning

Activity	Port activity	Green	Blinking	Indicates network activity for the corresponding port. A
				high level of network activity can cause the LEDs to
				appear to be on continuously.

HD/FD	Duplex Mode	Green	On/	The port is configured to full duplex.
			Off	The port is configured to half duplex.

Diagnosing and correcting problems

Before you perform the problem-solving steps in this section, cycle the power to the BayStack 420 Switch (disconnect and then reconnect the AC power cord); then verify that the switch follows the normal power-up sequence.

Warning: To avoid bodily injury from hazardous electrical current, never remove the top cover of the device. There are no user-serviceable components inside.

Vorsicht: Um Verletzungsgefahr durch einen elektrischen Stromschlag auszuschließen, nehmen Sie niemals die obere Abdeckung vom Gerät ab. Im Geräteinnern befinden sich keine Komponenten, die vom Benutzer gewartet werden können.

Avertissement: Pour éviter tout risque d'électrocution, ne jamais retirer le capot de l'appareil. Cet appareil ne contient aucune pièce accessible par l'utilisateur.

Advertencia: A fin de evitar daños personales por corrientes eléctricas peligrosas, no desmonte nunca la cubierta superior de este dispositivo. Los componentes internos no son reparables por el usuario.

Using the BayStack 420 10/100/1000 Switch

Image 175

Nortel Networks 1000BASE-ZX manual Diagnosing and correcting problems, Troubleshooting BayStack 420 Switch LED descriptions

Contents

Using the BayStack 420 10/100/1000 Switch Statement of conditions Copyright 2001 Nortel NetworksTrademarks Restricted rights legend Canada Requirements Only Using the BayStack 420 10/100/1000 SwitchJapan/Nippon Requirements Only Taiwan Requirements Nortel Networks Inc. software license agreement Using the BayStack 420 10/100/1000 Switch 209418-A Contents Contents Chapter Network configuration Chapter Using the console interface Chapter Troubleshooting Appendix B Installing a Gigabit Interface Converter Gbic Contents 209418-A Using the BayStack 420 10/100 Ethernet Switch Configuring power workgroups and a shared media hub Choosing the MultiLink Trunk Configuration Menu screen Figures Figures 209418-A Tables Tables Before you begin Preface Text conventions Italic text Related publications Technical Solutions Center Telephone How to get help Preface 209418-A Physical description BayStack 420 Switch Description Components on the BayStack 420 Switch front panelFront panel Console port Gigabit Interface Converter Gbic Port connectors LED display panel BayStack 420 Switch LED display panel Label Type Color State Meaning BayStack 420 Switch BayStack 420 Switch LED descriptions Cooling fans Cascade Up and Down connectorsComponents on the BayStack 420 Switch back panel Back panel International power cord specifications AC power receptacleCountry/Plug description Specifications Typical plug Vorsicht Bitte sofort lesen Advertencia Sírvase leer inmediatamente Virtual Local Area Networks VLANs Features Security BayStack 420 Switch security feature BayStack 420 Switch MAC address-based security RADIUS-based network security Configuration parameters storage Switch software image storageFlash memory storage Port mirroring conversation steering MultiLink TrunkingAutosensing, autonegotiation, and autopolarity Standards RFCs Snmp MIB support Snmp MIB supportApplication Standard MIBs Proprietary MIBs Support Snmp traps BootP automatic IP configuration/MAC addressTrap name Configurable Sent when RFC 1215 industry standard Snmp trap support Configuration and switch management BayStack 420 Switch Desktop switch application Network configuration examples Network configuration Segment switch application BayStack 420 Switch used as a segment switch High-density switched workgroup application Unit Select switch BayStack 420 Switch stack operation Base unit Initial installationStack MAC address Stack up configurations Stack configurationsRemoving a unit from the stack Stack up configuration description Stack down configurations Stack down configuration description Stack down configuration example Ieee 802.1Q Vlan workgroups Port-based Vlan example Ieee 802.1Q tagging Network configuration Default Vlan settings Port-based Vlan assignment 802.1Q tag assignment VLANs spanning multiple 802.1Q tagged switches VLANs spanning multiple switches VLANs spanning multiple untagged switches Vlans spanning multiple untagged switches Possible problems with VLANs and Spanning Tree Protocol Multiple VLANs sharing resources Shared servers Vlan broadcast domains within the switch Default Vlan Configuration screen example Vlan Configuration screen example Default Vlan Port Configuration screen example Vlan workgroup summary Vlan Port Configuration screen example Vlan configuration spanning multiple switches MultiLink Trunks Vlan configuration rules Switch-to-switch trunk configuration example Switch-to-server trunk configuration example Client/server configuration using MultiLink Trunks Client/server configuration example Trunk configuration screen examples MultiLink Trunk Configuration Menu screen opens Figure Trunk configuration screen for Switch S1 MultiLink Trunk Configuration screen for Switch S1 Trunk configuration screen for Switch S2 Shows the MultiLink Trunk Configuration screen for Switch S2 Shows the MultiLink Trunk Configuration screen for Switch S3 Trunk Configuration screen for Switch S3 Trunk Configuration screen for Switch S4 Shows the MultiLink Trunk Configuration screen for Switch S4 Before you configure trunks Path Cost arbitration example Spanning tree considerations for MultiLink Trunks Example 1 correctly configured trunk Example 2 detecting a misconfigured port Port mirroring Additional tips about the MultiLink Trunking feature Yes Accessing the CI menus and screens Chapter Using the console interface Using the console interface Using the CI menus and screensNavigating the CI menus and screens Map of console interface screens Screen fields and descriptions Main menu Console interface main menu options Describes the CI main menu options Reset Option Description Switch ConfigurationConfiguration Configuration File Settings Option Description Reset to DefaultLogout Describes the IP Configuration/Setup screen fields IP Configuration/Setup screen IP Configuration/Setup screen fields Mask Choosing a BootP request modeDefault Gateway Field Description In-Band Subnet BootP When Needed BootP Disabled Field Description Read-Only Snmp Configuration screenDescribes the Snmp Configuration screen fields Snmp Configuration screen fields Trap #1 IP Address1 System Characteristics screenAuthentication Trap Field Description Read-Write System Characteristics screen fields Describes the System Characteristics screen fields SysServices Field Description Reset CountLast Reset Type Power Status Switch Configuration Menu screen Switch Configuration Menu options Describes the Switch Configuration Menu options Option Description Clear All Port Statistics MAC Address Table screen Find an Address Describes the MAC Address Table screen fieldsMAC Address Table screen fields Field Description Aging Time MAC Address Security Configuration Menu screen MAC Address Security Configuration Menu options Field Description MAC Address Security MAC Address Security Configuration screen fieldsSNMP-Locked DA Filtering on Intrusion Field Description Partition Port on IntrusionDetected Partition Time Learn by Ports MAC Address Security Port Configuration screenCurrent Learning Mode Field Description Clear by Ports MAC Security Port Configuration screen 1 MAC Security Port Configuration screen fields Describes the MAC Security Port Configuration screen fieldsMAC Address Security Port Lists screens MAC Address Security Port Lists screens Field Entry Port List Description Port list syntaxDescribes the MAC Address Security Port Lists screen fields MAC Address Security Port Lists screen fields Adding a new port to an existing port number list Accelerator keys for repetitive tasks Removing a port from an existing port number list MAC Address Security Table screens MAC Address Security Table screens Allowed Source Describes the MAC Address Security Table screen fieldsMAC Address Security Table screen fields Field Description Find an Address Field Description Vlan Configuration Menu screen 122. This screen allows you to set up Vlan workgroups Describes the Vlan Configuration Menu optionsVlan Configuration Menu options Option Description Vlan Configuration Vlan Configuration screen Delete Vlan Describes the Vlan Configuration screen fieldsVlan Configuration screen fields Field Description Create Vlan Vlan State Vlan NameManagement Vlan User-Defined PID Vlan Port Configuration screen Filter Untagged Frames Describes the Vlan Port Configuration screen fieldsVlan Port Configuration screen fields Field Description Unit Tagging Vlan Display by Port screenAuto Pvid Vlan Display by Port screen fields Describes the Vlan Display by Port screen fieldsVLANs Port Configuration screen Link Describes the Port Configuration screen fieldsPort Configuration screen fields Status Speed/Duplex1 High Speed Flow Control Configuration screenField Description LnkTrap Autonegotiation Flow Control High Speed Flow Control Configuration screen fields Asymmetric mode Choosing a high speed flow control modeMultiLink Trunk Configuration Menu screen Symmetric mode MultiLink Trunk Configuration Menu screen 209418-A Describes the MultiLink Trunk Configuration Menu options MultiLink Trunk Configuration screenMultiLink Trunk Configuration Menu options Trunk Members Describes the MultiLink Trunk Configuration screen fieldsMultiLink Trunk Configuration screen fields Field Description Trunk Trunk Status Trunk ModeMultiLink Trunk Utilization screen Field Description STP Learning MultiLink Trunk Utilization screen 1 Describes the MultiLink Trunk Utilization screen fields Port Mirroring Configuration screenMultiLink Trunk Utilization screen fields Port Mirroring Configuration screen fields Describes the Port Mirroring Configuration screen fieldsField Description Monitoring Mode Field Description Port-based Port Statistics screenMonitoring modes Field Description Monitor Unit/Port Port Statistics screen Describes the Port Statistics screen fields Port Statistics screen fields Using the console interface Port Statistics screen fields Pause Frames Port 25 only System Log screen From Describes the System Log screen fieldsSystem Log screen fields Display Messages Clear Messages From Console/Comm Port Configuration screenField Description Display configuration Complete? Console/Comm Port Configuration screen fields Describes the Console/Comm Port Configuration screen fields Console Switch Password Type Field Description Console Stack Password TypeTelnet Switch Switch Password Default Value secure Range Field Description Console Read-Only Stack Password Radius UPD Port Primary Radius ServerSecondary Radius Server Renumber Stack Units screen Renumber Stack Units screen Describes the Renumber Stack Units screen fields Hardware Unit Information screenRenumber Stack Units screen fields Hardware Unit Information screen Spanning Tree Configuration Menu screen Spanning Tree Switch Settings Describes the Spanning Tree Configuration Menu optionsSpanning Tree Configuration Menu options Option Description Spanning Tree Port Configuration Spanning Tree Port Configuration screen 1 209418-A Spanning Tree Port Configuration screen Spanning Tree Port Configuration screen fields Spanning Tree Port Configuration screen 2 Priority Field Description ParticipationPath Cost Spanning Tree Switch Settings screen Spanning Tree Switch Settings parameters Describes the Spanning Tree Switch Settings parameters Bridge Parameter Description Forward DelayDelay Bridge Hello Telnet Configuration screen 209418-A Telnet Configuration screen Telnet Configuration screen fields Describes the Telnet Configuration screen fields Field Description Allowed Source Software Download screen Using the console interface Field Description BayStack Diagnostics FilenameDescribes the Software Download screen fields Software Download screen fields Start Tftp Load Configuration File Download/Upload screenLED Indications during the download process Field Description Tftp Server IP Configuration File Download/Upload screen 209418-A Configuration File Download/Upload screen fields Requirements Parameters not saved to the configuration fileThese parameters are not saved Used in this screen See Interpreting the LEDs Chapter Troubleshooting LED display panel Troubleshooting Troubleshooting BayStack 420 Switch LED descriptions Diagnosing and correcting problems Symptom Probable cause Corrective action Normal power-up sequenceCorrective actions Autonegotiation modes Port connection problems Port interface Electrical parameters Environmental specificationsEnvironmental Electrical Performance specifications Physical dimensionsLists physical dimensions for the BayStack 420 Switch Electromagnetic emissions Safety agency certificationAppendix a Technical specifications Network protocol and standards compatibility Electromagnetic immunity BayStack 420 Switch meets the EN50082-11997 standard Product description Appendix B Installing a Gigabit Interface Converter Gbic Gbic labeling Appendix B Installing a Gigabit Interface Converter Gbic Gbic Models Standards, connectors, cabling, and distanceGbic specifications Gbic specifications are listed in Table Receiver Characteristics Model 1000BASE-SX Gbic specificationsType Specifications Laser Transmitter Characteristics Model 1000BASE-LX Gbic specifications 1000BASE-XD Model 1000ASE-XD Gbic specifications 1000BASE-ZX Model 1000BASE-ZX Gbic specifications Handling, safety, and environmental guidelines Installing a Gbic Installing a Gbic Appendix C Quick configuration for MultiLink Trunking Configuring MultiLink Trunks Appendix C Quick configuration for MultiLink Trunking RJ-45 8-pin modular port connector RJ-45 10BASE-T/100BASE-TX port connectors MDI and MDI-X devices Appendix D Connectors and pin assignmentsRJ-45 port connector pin assignments Pin Signal Description MDI-X to MDI cable connections MDI-X to MDI cable connections MDI-X to MDI-X cable connections DB-9 RS-232-D Console/Comm Port connector DB-9 Console port connector pin assignments Lists the DB-9 Console port connector pin assignments Appendix D Connectors and pin assignments 209418-A Field Default setting Appears in this CI screen Factory default settings Menu screen on Appendix E Default settings Factory default settings Port Configuration screen on Appendix E Default settings Port Mirroring Configuration screen Telnet Configuration screen on Appendix E Default settings 209418-A Using the BayStack 420 10/100 Switch Appendix F Sample BootP configuration file Appendix F Sample BootP configuration file Index Index Index Index Index