Hitachi US7070447-001 - Manuals

US7070447-001 vii Rev 01 List of Figures Figure 2-1. Model HS140-010 base model with an HS-150-010-16Eexpansion module installed ...................................................................... 2-4 Figure 2-2. HS150-100-16 base model with an HS150-100-8E expansion module installed ...............

US7070447-001 ix Rev 01 List of Tables Table 2-1. Base model configurations ....................................................................... 2-3 Table 2-2. HiSpeed switch expansion modules ........................................................ 2-5 Table 2-3. Uplink modules for the HS15-010 ...

US7070447-001, Rev 01 1- 1 Chapter 1 Introduction Purpose of the Guide The purpose of this troubleshooting guide is to assist users in understanding, identifying and diagnosing network related problems in a switched network environment. Additionally, the guide allows users to gain a better understan...

HiSpeed Switch Troubleshooting Guide 1-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ❒ Are all users affected? Or a certain group of users on a specific segment? ❒ Are all types of traffic affected? In other words, what protocols are failing? ❒ Is the problem consistent or intermittent? ❒...

Introduction US7070447-001, Rev 01 1-3 Draft Level—Hitachi Confidential Abatch program called dispcfg is available on Hitachi’s anonymous FTP server (204.48.18.63). When used in combination with HiSpeed’s debugging commands, relevant configuration on the switch is captured and the results are writte...

US7070447-001, Rev 01 2- 1 Chapter 2 HiSpeed Switch What is the HiSpeed Switch? The HiSpeed switch is a multiprotocol, Fast Ethernet workgroup switch than can be configured for up to 32 10/100 Mbps LAN switch ports, depending on the model. The HiSpeed switch maximizes performance in existing shared ...

HiSpeed Switch Troubleshooting Guide 2-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ❒ Supports multiple hardware configurations and provides support for the following port configurations: — 10BASE-TX ports — 10/100BASE-TX ports — 100BASE-FX ports — PCI-based ATM Uplink to server — PCI-ba...

HiSpeed Switch US7070447-001, Rev 01 2-3 Draft Level—Hitachi Confidential Each of the HS150 and HS140 models has one expansion slot which can be populated with an expansion module that doubles the number and/or type of available ports. The expansion modules can be installed in the field or at the fa...

HiSpeed Switch US7070447-001, Rev 01 2-5 Draft Level—Hitachi Confidential Key: ➀ Console port ➁ Reset button/Power LED ➂ Onboard module (with TX ports) ➃ Expansion slot (with TX ports) ➄ UpLink slot Figure 2-2. HS150-100-16 base model with an HS150-100-8E expansion module installed Expansion Modules...

HiSpeed Switch Troubleshooting Guide 2-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential UpLink Modules The uplink module is installed into the uplink slot located in the upper left corner of the front panel. The uplink provides high-speed server access for FDDI and ATM. Only the HS150-010 an...

US7070447-001, Rev 01 3- 1 Chapter 3 Hardware Diagnostics The power and status LEDs indicate the general operations of the HiSpeed switch. The HiSpeed switch provides transparent operation once it has been installed and configured. If you suspect that it may be malfunctioning or causing a system pro...

HiSpeed Switch Troubleshooting Guide 3-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Figure 3-1. Module LEDs Reset Button The Reset button, located on the front panel of the switch, allows you to manually recycle power and reset the switch. Pressing the Reset button initiates a warm boot ...

HiSpeed Switch Troubleshooting Guide 3-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ! " # # $% Each FX port has two LEDs to the right of the SC connector. Table 3-3 lists the LEDs and their function. Table 3-2. RJ-45 LEDs LED Color Status Description LINK Link Green Solid Link is act...

Hardware Diagnostics US7070447-001, Rev 01 3-5 Draft Level—Hitachi Confidential HiSpeed Memory, Boot Prom, Flash Components The HiSpeed switch is shipped standard from the factory with the following system configurations. ❒ Memory: 8 Mbytes (DRAM) ❒ Boot Prom: 512 Kbytes (EPROM) — Initialization boo...

HiSpeed Switch Troubleshooting Guide 3-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ❒ Ethernet port settings: autonegotiation is ON ❒ Spanning Tree is enabled These settings provide for switching in a single broadcast domain.

US7070447-001, Rev 01 4- 1 Chapter 4 Cabling The HiSpeed switch models are similar in physical makeup of ports and LEDs. This section describes the following port types, LED configurations, and connections for all models. ❒ 10BASE-TX ports ❒ 10/100BASE-TX ports ❒ 100BASE-FX ports ❒ Console connectio...

HiSpeed Switch Troubleshooting Guide 4-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ❒ Line transmission modes on the 10/100BASE-TX ports support both half-duplex and full-duplex operations. By definition, the CSMA/CD protocol is half-duplex where data can be transmitted and received in b...

Cabling US7070447-001, Rev 01 4-3 Draft Level—Hitachi Confidential 10/100BASE-TX Ports The 10/100BASE-TX ports on the HiSpeed switch are standard RJ-45 connections using UTP Category 5 cabling. These ports, like the 10BASE-TX ports, are wired for MDI-X and require a crossover cable when connecting t...

HiSpeed Switch Troubleshooting Guide 4-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Console Port The console port has a DB-9 male connector used to connect a management terminal to the switch by means of a straight-through DB-9 to DB-9 standard serial port cable. Using a terminal, you ca...

Doc Part Number, Version Number 5- 1 Chapter 5 Fundamentals of Networking Today, there are many different types of computers and networking equipment available. These devices are expected to communicate with each other. For this reason, it is extremely important that a set of rules be established an...

HiSpeed Switch Troubleshooting GUide 5-2 Doc Part Number, Version Number Draft Level—Hitachi Confidential Figure 5-1. Network Media Layers 1 through 3 define the network and how data is transferred across the network. Layers 4 through 7 define how the data is used. Each of the seven layers are descr...

Fundamentals of Networking Doc Part Number, Version Number 5-3 Draft Level—Hitachi Confidential The LLC sublayer defines the logical connection to the upper layer services based on a socket or Service Access Point (SAP). This allows two processes on the same network to maintain a “logical connection...

Doc Part Number, Version Number 6- 1 Chapter 6 Methods of Managing the Switch Hitachi’s HiSpeed switch can be managed using the following: ❒ Serial connection on the console port ❒ Telnet session over a TCP/IP network ❒ SNMP using HiView’s Graphical User Interface (GUI) CLI (Command Line Interface) ...

HiSpeed Switch Troubleshooting GUide 6-2 Doc Part Number, Version Number Draft Level—Hitachi Confidential Configure the terminal to use the following parameters: ❒ Data bits: 8 ❒ Stop bit: 1 ❒ Parity: none ❒ Flow control:none Troubleshooting a Console Connection Use the following procedure to troubl...

Methods of Managing the Switch Doc Part Number, Version Number 6-3 Draft Level—Hitachi Confidential Troubleshooting a Telnet Session Use the following procedure when you cannot establish a Telnet session to the switch: 1. Verify that the console setting on the switch is unlocked. /console>lock 2....

HiSpeed Switch Troubleshooting GUide 6-4 Doc Part Number, Version Number Draft Level—Hitachi Confidential HiView Switch Management The HiSpeed switch can be configured using Hitachi’s HiView graphical user interface (GUI) application. HiView uses Simple Network Management Protocol (SNMP) to communic...

Methods of Managing the Switch Doc Part Number, Version Number 6-5 Draft Level—Hitachi Confidential UNIX The minimum system requirements to run on a UNIX platform are as follows: ❒ Sun SPARC station ❒ SunOS 4.1.1 or later ❒ Motif 1.2 or greater ❒ OpenView X.X or later HiView Tips Windows 95/NT 4.0 ❒...

HiSpeed Switch Troubleshooting GUide 6-6 Doc Part Number, Version Number Draft Level—Hitachi Confidential ❒ Select the VLAN prior to changing the VLAN color. Otherwise, a core dump will occur. Troubleshooting HiView ❒ In the FDDI MAC statistics menu, the values for Frame Received and Frame Copied ar...

Methods of Managing the Switch Doc Part Number, Version Number 6-7 Draft Level—Hitachi Confidential “::= { enterprises hicam(399) nsg(2) nsgConventions(200) 1 }”. The following is an example of the modified section of the NSGTC.MIB. EXAMPLE: IMPORTS MODULE-IDENTITY, enterprises FROM SNMPv2-SMI; -- h...

HiSpeed Switch Troubleshooting GUide 6-8 Doc Part Number, Version Number Draft Level—Hitachi Confidential 2. Click on the menu bar labelled “Tools”, then click on “MIB compiler…” A dialog windows will appear (see Figure 6-1). Figure 6-1. MIB Compiler 3. Click on “Invoke MIB Compiler”, select the pri...

Methods of Managing the Switch Doc Part Number, Version Number 6-9 Draft Level—Hitachi Confidential 6. Click on the menu bar labelled “Tools”and click on “MIB Browser”. A dialog window will appear. See Fig.2 below. Go to this directory : iso.org.dod.internet.mgmt. and click on private ( enterprises ...

HiSpeed Switch Troubleshooting GUide 6-10 Doc Part Number, Version Number Draft Level—Hitachi Confidential SNMPTalk Issues For the RMON groups to work properly, the mib.rt file needs to be loaded in the same directory as SNMPTalk. The mib.rt file contains all MIB information.

HiSpeed Switch Troubleshooting Guide 7-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Figure 7-1. Using Spanning Tree When Spanning Tree is implemented, redundant bridge ports are blocked and looping is eliminated, as shown in Figure 7-1. The first step in forming a Spanning Tree is electi...

Bridging Concepts US7070447-001, Rev 01 7-3 Draft Level—Hitachi Confidential If, on any given port, a bridge decides to keep a packet from another bridge instead of the packet that it would send, it no longer transmits BPDU messages. Basically, it drops out of the running because it realizes there i...

HiSpeed Switch Troubleshooting Guide 7-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Problem: After rebooting my PC, I cannot log onto my Novell or DHCP server. Solution: PCs equipped with faster processors will boot up before STA on the switch has completely stabilized. Because the ports...

Bridging Concepts US7070447-001, Rev 01 7-5 Draft Level—Hitachi Confidential CLI Commands /vbridge/show/fwt Displays the bridge forwarding Table. /vbridge/show/filter/all Displays all static entries in the Bridge Forwarding Table. /vbridge/show/bridge <vlan#> Displays the bridge parameters per...

US7070447-001, Rev 01 8- 1 Chapter 8 VLAN Concepts A VLAN is a network that logically divides workgroups by functions, applications, etc. without regards to the physical location of users, thereby localizing network traffic to those you would communicate with most often. VLANs are bounded by routers...

HiSpeed Switch Troubleshooting Guide 8-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Figure 8-1. VLANs VLANs provide some of the following benefits: ❒ Reduced costs As a company grows and reorganizes, physical moves, adds, and re-cabling are made to their network. VLANs provide a cost eff...

VLAN Concepts US7070447-001, Rev 01 8-3 Draft Level—Hitachi Confidential Troubleshooting VLANs Problem: Cannot ping a user(s) on a different VLAN. Solution: Verify the following: Verify that the port(s) the user(s) is connected to has the correct VLAN number(s) assigned to it. /VLAN/SHOW >vlan Ve...

HiSpeed Switch Troubleshooting Guide 8-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential VLAN Tips For each VLAN created with an IP address, an associated entry is also generated. Therefore, it is critical to verify that these entries exist. If any of the entries are missing, the system confi...

Doc Part Number, Version Number 9- 1 Chapter 9 Troubleshooting at the MAC Layer Ethernet Ethernet is a LAN based technology with data transmission rates of 10 or 100 Mbps. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol dictates how Ethernet frames traverse the network. In ...

HiSpeed Switch Troubleshooting GUide 9-2 Doc Part Number, Version Number Draft Level—Hitachi Confidential Physical Media Specifications Common Ethernet Errors 10BASE-5 (Thick Coaxial cable) 10BASE-2 (Thin Coaxial cable) 10BASE-TX (Unshielded Twisted Pair-UTP) 10BASE-FX (Fiber Optical Link) Max. stat...

Troubleshooting at the MAC Layer Doc Part Number, Version Number 9-3 Draft Level—Hitachi Confidential Ethernet Tips ❒ Ensure that both port speed and duplexity on the switch and endstations are the same. ❒ By default, autonegotiation is enabled on the switch. If the endstation’s network adapter card...

HiSpeed Switch Troubleshooting GUide 9-4 Doc Part Number, Version Number Draft Level—Hitachi Confidential Troubleshooting Ethernet Problem: Switch is not reporting any port statistics even with traffic on my network. Solution: By default, port statistics is disabled on the switch. /ETHERNET/CONFIG &...

US7070447-001, Rev 01 10- 1 Chapter 10 Troubleshooting at the Network Layer IP (Internet Protocol) The HiSpeed switch supports IP (Internet Protocol), a widely used Network Layer protocol used by devices to communicate across a network. IP utilizes a 32-bit address structure to identify the network ...

HiSpeed Switch Troubleshooting Guide 10-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Other IP-related Services The HiSpeed switch supports the following IP-related functions: ❒ Address Resolution Protocol (ARP) Used to resolve an IP to MAC address allowing devices to communicate at the D...

Troubleshooting at the Network Layer US7070447-001, Rev 01 10-3 Draft Level—Hitachi Confidential To prevent routing loops, the HiSpeed switch implements Split Horizon. Networks that are learned through a particular interface will not get advertised back out that same interface. Route Cache Forwardin...

HiSpeed Switch Troubleshooting Guide 10-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Common ICMP Destination Unreachable Messages Network Unreachable This message is sent by a router indicating that it cannot reach the specified network. This may be a result of a misconfigured mask, link...

Troubleshooting at the Network Layer US7070447-001, Rev 01 10-5 Draft Level—Hitachi Confidential Troubleshooting IP Problem: A n external router is connected to my switch. I can ping the router interface on my network but cannot reach any networks beyond the router. Solution: Use the following solut...

HiSpeed Switch Troubleshooting Guide 10-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential and performance issues. If using static routes on the HiSpeed switch, you must configure those routes on those directly connected switches and routers. On the HiSpeed switch, use the following command: /...

US7070447-001, Rev 01 11- 1 Chapter 11 Basic ATM Concepts Asynchronous Transfer Mode (ATM) is a connection-oriented protocol using 53 byte fixed length cells. One significant advantage of ATM is the ability to carry voice, video and data traffic simultaneously over a 155 megabit per second pipe. The...

HiSpeed Switch Troubleshooting Guide 11-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Permanent Virtual Circuits vs. Switched Virtual Circuits ATM connections can be established manually (Permanent Virtual Circuits) or dynamically (Switches Virtual Circuits). Permanent Virtual Circuits (P...

Basic ATM Concepts US7070447-001, Rev 01 11-3 Draft Level—Hitachi Confidential The components of an Emulated LAN (ELAN) consists of the following: ❒ LAN Emulation Client (LEC) ❒ LAN Emulation Configuration Server (LECS) ❒ LAN Emulation Server (LES) ❒ Broadcast and Unknown Server (BUS) LAN Emulation ...

HiSpeed Switch Troubleshooting Guide 11-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Classical IP over ATM (CIP) Classical IP (CIP) allows devices in different IP subnets to communicate across an ATM network. If the Classical IP (CIP) interfaces are on different LIS (Logical IP subnets),...

Basic ATM Concepts US7070447-001, Rev 01 11-5 Draft Level—Hitachi Confidential Figure 11-4. ATM PTOP Trunking Trunking allows multiple VLANs to share the same virtual channel connection (VCC) using either Permanent Virtual Connections (PVCs) or Switched Virtual Connections (SVCs). Unlike PTOP, VLAN ...

HiSpeed Switch Troubleshooting Guide 11-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Hitachi HiSpeed ATM Specifications ❒ UNI 3.0 & 3.1 signaling is supported. ❒ Conforms to ILMI Registration 3.1 and ILMI MIB 4.0 specifications. ❒ Due to memory constraints over the ATM uplink, 16 is ...

Basic ATM Concepts US7070447-001, Rev 01 11-7 Draft Level—Hitachi Confidential ❒ If your ATM configuration is corrupt, delete your ATM file from the CLI (rm atm.cur), reset the switch, and re-configure ATM. ❒ Signaling changes may require you to reboot the switch. Troubleshooting LANE Problem: I’ve ...

HiSpeed Switch Troubleshooting Guide 11-8 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Troubleshooting CIP Problem: I’ve created a CIP service but still cannot connect to the ATM network. Solution: Use the following solutions: Verify that the CIP service has been created, admin status is e...

HiSpeed Switch Troubleshooting Guide 11-10 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Troubleshooting PTOP Problem: I’ve created a PTOP service but cannot connect to the ATM network. Solution: Use the following solutions: Verify that the PTOP service has been created, admin status is ena...

HiSpeed Switch Troubleshooting Guide 11-12 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Troubleshooting Trunking Problem: I’ve created a Trunking service but cannot connect to the ATM network. Solution: Use the following solutions: Verify that the Trunking service has been created, admin s...

Basic ATM Concepts US7070447-001, Rev 01 11-13 Draft Level—Hitachi Confidential Verify the following using /ATM/SHOW/connection: – OAM is up. – SSCOP, and ILMI is up. (for SVC only) – A Trunk SVC or PVC connection is created per Trunk instance. – ATM port connection and signaling. Operational status...

HiSpeed Switch Troubleshooting Guide 11-14 US7070447-001, Rev 01 Draft Level—Hitachi Confidential CLI Commands /ATM/SHOW >connection Displays all active ATM circuits /ATM/SHOW >port Displays ATM port , Signaling, and ILMI configurations /ATM/SHOW >lec , lec <lec#> Displays all or a sp...

US7070447-001, Rev 01 12- 1 Chapter 12 FDDI Concepts FDDI employes a dual ring topology using two counter-rotating fiber rings: a primary and secondary. Data travels on the primary ring while the secondary backup ring is utilized if the primary ring fails. The data rate is 100 Mbps based on a timed-...

HiSpeed Switch Troubleshooting Guide 12-2 US7070447-001, Rev 01 Draft Level—Hitachi Confidential In a normal ring operation, an FDDI station captures a free token and transmits completely unless the token holding timer (THT) expires. As the frame traverses the ring, every station examines the frame ...

FDDI Concepts US7070447-001, Rev 01 12-3 Draft Level—Hitachi Confidential The FDDI Uplink module provides fiber optic connectivity between switched 10/100 Ethernet networks and an FDDI backbone network. Cable Connections The FDDI Uplink provides two SC connector ports allowing for both a (Single Att...

HiSpeed Switch Troubleshooting Guide 12-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Observing LEDs Table 2-1 provides information about what the LEDs mean in various states FDDI Bridge Modes The HiSpeed switch can operate in any of the following bridging modes: ❒ Filtering ❒ Forwarding ...

FDDI Concepts US7070447-001, Rev 01 12-5 Draft Level—Hitachi Confidential Filtering Mode With FDDI Filtering, packets between FDDI-native devices are filtered at the FDDI Uplink, not at the switch’s bridging table. This method of filtering reduces the burden on the HiSpeed processor. If the FDDI rin...

HiSpeed Switch Troubleshooting Guide 12-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential ❒ For AppleTalk users, must be running software version 1.3.28 or later. ❒ FDDI Port service can only be bounded to VLAN 1. RIP must be ‘active’ to route traffic from one VLAN to another across FDDI. ❒ T...

FDDI Concepts US7070447-001, Rev 01 12-7 Draft Level—Hitachi Confidential Problem: I’m having a communication problem with Platelike over FDDI . Solution: Use the following solutions: Verify that you are running firmware version 1.3.28 or above. In the CLI, enter the ‘vsys’ command. If not, upgrade ...

HiSpeed Switch Troubleshooting Guide 12-8 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Problem: Traffic through the FDDI port seems to slow and/or hang. Solution: There is currently an issue with the FDDI driver and buffer management. Engineering is actively working to resolve the problem....