Manuale UtenteSommarioTrademarks2Technical Support2Table of Contents3Chapter1 Introduction3Chapter2 HiSpeed Switch3Chapter3 Hardware Diagnostics3Chapter4 Cabling4Chapter5 Fundamentals of Networking4Chapter6 Methods of Managing the Switch4Chapter7 Bridging Concepts5Chapter8 VLAN Concepts5Chapter9 Troubleshooting at the MAC Layer5Chapter10 Troubleshooting at the Network Layer6Chapter11 Basic ATM Concepts6Chapter12 FDDI Concepts7Index7Chapter1 Introduction13Purpose of the Guide13Basic Troubleshooting Tips13How to Contact Tech Support14Chapter2 HiSpeed Switch17What is the HiSpeed Switch?17Basic Product Features Supported17Available Configurations18Table21. Base model configurations19HS140/150-010 Model20Figure21. Model HS140-010 base model with an HS-...20HS140/150-100 Model20Figure22. HS150-100-16 base model with an HS150-...21Expansion Modules21Table22. HiSpeed switch expansion modules21UpLink Modules22Table23. Uplink modules for the HS15-010 and HS1...22Chapter3 Hardware Diagnostics23Observing LEDs23Figure31. Module LEDs24Reset Button24LEDs24Table31. LED status24Reset Button25Table32. RJ-45 LEDs26Table33. LEDs on FX ports26HiSpeed Memory, Boot Prom, Flash Components27Factory Switch Settings27Chapter4 Cabling29Basic Connections2910BASE-TX Ports30Table41. RJ-45 Connector pin assignments3010/100BASE-TX Ports31100BASE-FX Ports31Console Port32Table42. Console Port Pin Assignments32Chapter5 Fundamentals of Networking35Figure51. Network Media36Layer 1: Physical Layer36Layer 2: Data Link Layer36Layer 3: Network Layer37Layer 4: Transport Layer37Layer 5: Session Layer37Layer 6: Presentation Layer37Layer 7: Applications Layer37Chapter6 Methods of Managing the Switch39CLI (Command Line Interface)39Using the Console Port39Troubleshooting a Console Connection401. Verify you are using a null modem cable.402. Check the terminal settings on your PC to match...403. Check that your terminal or terminal emulator i...404. Restart your terminal session.405. Check if there is a telnet session to the switc...406. Reset the switch if it is necessary.40Using a Telnet Session40Troubleshooting a Telnet Session411. Verify that the console setting on the switch i...412. Verify that a link is established on the Ethern...413. Verify the port is enabled and in “Forwarding” ...414. Ping yourself first. Verify the switch’s IP add...41Logging In41Troubleshooting the Login Procedure411. For console port access, press [Return] several...412. Ensure that you are using all lowercase for you...413. Contact your supplier to have your password res...41HiView Switch Management42Windows 95/Windows NT 4.042UNIX43HiView Tips43Windows 95/NT 4.043HiView Tips43UNIX43Troubleshooting HiView44Troubleshooting Network Management software on the...44SNMPC Issues441. Create table entries with [etherStatsStatus.x |...442. Fill out the table entries with relevant values...443. Set the xxxStatus-field to valid.441. Open the NSGTC.MIB file with an ASCII text edit...442. Find the IMPORTS header located at the top of t...44EXAMPLE:45MeterWare Issues451. Launch the MeterWare program.452. Click on the menu bar labelled “Tools”, then cl...46Figure61. MIB Compiler463. Click on “Invoke MIB Compiler”, select the priv...464. From the “Compiled MB Files”list, select the MI...465. After all MIBs have been added, click on “Reloa...466. Click on the menu bar labelled “Tools”and click...47Figure62. Fig2. MIB Browser47SNMPTalk Issues48Chapter7 Bridging Concepts49Basic Bridging Concepts49How Spanning Tree Works49Figure71. Using Spanning Tree50Troubleshooting Bridging Issues51Problem: PC is moved to a different port on the sw...51Solution: Wait for Spanning Tree to stabilize comp...51Problem: After rebooting my PC, I cannot log onto ...52Solution: PCs equipped with faster processors will...52Problem: The switch is constantly flooding the net...52Solution: By design, a bridge will forward all bro...52CLI Commands53Chapter8 VLAN Concepts55Figure81. VLANs56Troubleshooting VLANs57Problem: Cannot ping a user(s) on a different VLAN...57VLAN Tips58Table81. VLAN Entries58Table82. Useful CLI Commands58Chapter9 Troubleshooting at the MAC Layer59Ethernet59Physical Media Specifications60Common Ethernet Errors60Ethernet Tips61Troubleshooting Ethernet62Problem: Switch is not reporting any port statisti...62Problem: Network is experiencing a large number of...62CLI Commands63Chapter10 Troubleshooting at the Network Layer65IP (Internet Protocol)65Table101. IP address classes65Other IP-related Services66RIP (Routing Information Protocol)66Route Cache Forwarding vs. IP Forwarding67Static Routes vs. Dynamic Routes67Default Route67Common ICMP Destination Unreachable Messages68Network Unreachable681. Is the specified destination address a valid ne...682. Is the link up from the router sending the Netw...683. Is the port in the router configured with the c...684. Does the route exist in the routing table?68Host Unreachable681. Is the destination IP address correct?682. Is the destination host available?683. Are there any physical layer problems on the de...684. Is the default gateway correctly defined on the...685. Verify that the destination device can ping its...68Port Unreachable681. Is the port process enabled or running?682. Find out what the port is used for and why isn’...68Troubleshooting IP69Problem: An external router is connected to my swi...69Problem: Performance is slow when routing across d...69Problem: Cannot establish a telnet session to the ...70CLI Commands70Chapter11 Basic ATM Concepts71Figure111. VPI/VCI71Permanent Virtual Circuits vs. Switched Virtual Ci...72LAN Emulation (LANE)72Figure112. ATM LANE72LAN Emulation Client (LEC)73LAN Emulation Configuration Server73LAN Emulation Server (LES)73Broadcast and Unknown Server (BUS)73Classical IP over ATM (CIP)74Figure113. ATM CIP74Point-to-Point Bridging (PTOP)74Figure114. ATM PTOP75Trunking75Figure115. ATM Trunk75Hitachi HiSpeed ATM Specifications76ATM Troubleshooting Tips76Troubleshooting LANE77Problem: I’ve created a LEC service but still cann...77Problem: The LEC connection is up and active but I...77Troubleshooting CIP78Problem: I’ve created a CIP service but still cann...78Problem: The CIP connection is up and active but I...79Troubleshooting PTOP80Problem: I’ve created a PTOP service but cannot co...80xxx’ denotes the ATM address defined on the switc...805’ is a reserved identifier for PTOP.802’ identifies the PTOP index configured on the de...80Problem: The PTOP connection is up and active but ...81Troubleshooting Trunking82Problem: I’ve created a Trunking service but canno...82Problem: The Trunk connection is up and active but...83CLI Commands84Chapter12 FDDI Concepts85Figure121. HS150 on an FDDI network85HiSpeed FDDI Uplink86Figure122. FDDI Uplink Module installed in an HS...86Cable Connections87Figure123. SAS cable connections87Figure124. DAS cable connections87Observing LEDs88Table121. LED States88FDDI Bridge Modes88Filtering Mode89Forwarding Mode89Promiscuous Mode89FDDI Troubleshooting Tips89Troubleshooting FDDI:90Problem: The HiSpeed switch is only forwarding bro...90Problem: I’m having a communication problem with P...91Problem: Cannot ping another VLAN over FDDI.91Problem: The FDDI port does not wrap or unwrap (go...91Problem: FDDI performance is slower from FDDI thro...91Problem: I cannot ping to some stations via FDDI.91Problem: Traffic through the FDDI port seems to sl...92Problem: The switch appears to hang during the boo...92CLI Commands93Symbols95Numbers95A95B95C95D95E96F96G96H96I96L96M97N97O97P97R97S97T97U98V98Index95Dimensioni: 612 KBPagine: 98Language: EnglishApri il manuale
