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5-4

ELS100-16TX Diagnostics and Troubleshooting

Figure 5-1. ELS100-16TX Front Panel LEDs

PWR

CPU

RESET

COM

PORT STATUS MODE

ACT

FDX MON

RX COL

100 USR

STATUS

ELS100-16TX

EPIM100

10X 12X 14X 16X

9X 11X 13X 15X

2X 4X 6X 8x

1X 3X 5X 7X

LINK

STATUS

LINK

STATUS

10 12 14 16

9 11 13 15

Port Link LEDs

Port Status LEDs

Segment Status LEDs

Segment Status Option Select Button

(lower row)

(upper row)

Power and

CPU LEDs

Содержание SmartSTACK 100

Страница 1: ...UIDE PWR CPU RESET COM PORT STATUS MODE TX ACT FDX MON RX COL 100 USR STATUS ELS100 16TX EPIM100 EPIM100 10X 12X 14X 16X 9X 11X 13X 15X 2X 4X 6X 8x 1X 3X 5X 7X LINK STATUS LINK STATUS 2 4 6 8 10 12 14...

Страница 2: ......

Страница 3: ...es mentioned in this manual may be trademarks or registered trademarks of their respective companies FCC NOTICE This device complies with Part 15 of the FCC rules Operation is subject to the following...

Страница 4: ...n a domestic environment radio disturbance may arise When such trouble occurs the user may be required to take corrective actions CABLETRON SYSTEMS INC PROGRAM LICENSE AGREEMENT IMPORTANT Before utili...

Страница 5: ...SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION SPECIAL INCI...

Страница 6: ...1 EN 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment p...

Страница 7: ...TXTX 2 1 ELS100 16TX FRONT PANEL 2 1 2 2 INSTALLING AN EPIM 2 4 2 3 INSTALLING THE ELS100 16TX 2 6 2 4 CHECKING THE POWER UP DIAGNOSTICS SEQUENCE 2 8 2 5 CONNECTING THE LOCAL CONSOLE MANAGER 2 8 2 6 C...

Страница 8: ...System Statistics 4 2 4 2 3 Ethernet Port Statistics 4 3 4 3 USING LCM TO CHECK ELS100 16TX STATUS 4 4 4 3 1 Displaying Status 4 4 4 3 2 Displaying MAC Addresses 4 6 4 3 3 Displaying Manufacturing In...

Страница 9: ...ty Problems 5 6 5 5 2 ELS100 16TX Has Rebooted 5 7 5 5 3 ELS100 16TX Does Not Respond to NMS 5 7 APPENDIX A TECHNICAL SPECIFICATIONS A 1 ELS100 16TX Specifications A 1 A 2 Serial Cable Pin Assignments...

Страница 10: ...viii Contents...

Страница 11: ...oduction outlines the contents of this manual and provides an overview of the SmartSTACK 100 ELS100 16TX s switching functions applications and the Local Console Manager LCM Chapter 2 Unpacking and In...

Страница 12: ...efore calling the Cabletron Systems Global Call Center have the following information ready Your Cabletron Systems service contract number A description of the failure Phone 603 332 9400 Internet mail...

Страница 13: ...tc Any previous Return Material Authorization RMA numbers 1 3 DOCUMENT CONVENTIONS The following conventions are used throughout this document LCM commands prompts and information displayed by the com...

Страница 14: ...ls and Architecture 2nd edition Volumes I and II Douglas Comer Prentice Hall 1991 The Simple Book An Introduction to Management of TCP IP based internets Marshall T Rose Prentice Hall Second Edition 1...

Страница 15: ...100 16TX Figure 1 1 SmartSTACK 100 ELS100 16TX Front Panel The SmartSTACK 100 ELS100 16TX Provides dedicated bandwidth for each network connected to its ports Provides full store and forward bridging...

Страница 16: ...S100 16TX ports can be segmented into 8 separate broadcast domains Compilation of statistics by port for traffic from each user device connected to a SmartSTACK 100 ELS100 16TX segment 1 5 1 SmartSTAC...

Страница 17: ...K ELS100 16TX will operate in either 10 Mbps half or full duplex or 100 Mbps half or full duplex modes Utilization of Fast Ethernet 100 Mbps connections provides a 10 fold increase in data rate per se...

Страница 18: ...le dedicated bandwidth in a single trunk group of up to 1 6 Gbps full duplex when using 100BaseX ports or 160Mbps full duplex when using the ports in 10BaseT mode This is accomplished without introduc...

Страница 19: ...n when a device requests access to the network and when it is granted permission to transmit In addition full store and forward switching ensures data integrity thus preventing network error condition...

Страница 20: ...ning tree of networks It is used to prevent bridging loops This standard defines a logical not physical network configuration consisting of one extended LAN without active duplicate paths between span...

Страница 21: ...segment number the next time it sees that address By using the information stored in the Bridge Address Table the SmartSTACK 100 ELS100 16TX is able to quickly forward each packet to the correct LAN s...

Страница 22: ...evices like Network General s Distributed Sniffer SystemTM to continue to receive expert analysis and packet decode functions in a switched environment simply use the port mirroring function to mirror...

Страница 23: ...ork and SmartSTACK families This capability provides a scalable dedicated bandwidth of up to 1 6 Gbps for 100 Mbps ports For example local traffic such as the Manufacturing Department s internal traff...

Страница 24: ...ized by the SmartSTACK 100 ELS100 16TX and broadcast packets are routed directly to hosts within the workgroup eliminating the need to perform a general broadcast across each segment of the network to...

Страница 25: ...et segments A and B that do not include a SmartSTACK 100 ELS100 16TX Figure 1 5 Multiple Ethernet Segments Sharing 100 Mbps Bandwidth Each host on segments A and B is limited to sharing a network band...

Страница 26: ...d adding to the amount of contention for the limited 100 Mbps bandwidth Ports that are not part of a workgroup will receive and transmit packets from any ports However if you configure the SmartSTACK...

Страница 27: ...etron Systems Network Management System or a standard SNMP based Network Management System to manage the SmartSTACK 100 ELS100 16TX For a list of available SmartSTACK 100 ELS100 16TX network managemen...

Страница 28: ...essage The previous command can be repeated by typing MAC addresses are displayed in little endian Ethernet least significant bit bit order with each octet separated by a colon For example ELS100 16 a...

Страница 29: ...an ASCII terminal or terminal emulator See Section 2 5 Connecting the Local Console Manager for instructions When you want to use LCM begin by pressing the Enter key several times to get the LCM prom...

Страница 30: ...et of ports disable PORT RANGE to disable a set of ports community to change the password community name sttimer TIMER VALUE to set or display st age timer workgroup NAME delete PORT RANGE INFO to set...

Страница 31: ...plays the traps messages captured by the SmartSTACK 100 ELS100 16TX The following is an example of a traplog display ELS100 16 traplog Trap 16 0 00 00 The unit has booted Trap 25 0 00 00 The unit s sp...

Страница 32: ...1 22 Introduction...

Страница 33: ...anual the Getting Started with the SmartSTACK 100 ELS100 16TX guide and Release Notes are also included 2 1 ELS100 16TX FRONT PANEL The ELS100 16TX provides 16 IEEE 802 3 10 100 BASE T autosensing Eth...

Страница 34: ...STATUS MODE TX ACT FDX MON RX COL 100 USR STATUS ELS100 16TX EPIM100 EPIM100 10X 12X 14X 16X 9X 11X 13X 15X 2X 4X 6X 8x 1X 3X 5X 7X LINK STATUS LINK STATUS 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 RJ45...

Страница 35: ...es the monitor port Indicates the port s being monitored Indicates that errored packets were received Link Individual Ports On Off Indicates the link is good Indicates there is no link Status Individu...

Страница 36: ...correctly and firmly with the connector inside the ELS100 16TX Refer to Figure 2 2 3 Install the mounting screw Caution When removing an EPIM pull the module straight out to prevent damage to the con...

Страница 37: ...Unpacking and Installing Your ELS100 16TX 2 5 Figure 2 2 Installing an EPIM 10X 12X 14X 16X 9X 11X 13X 15X EPIM100 EPIM100 EPIM 100FX LNK EPIM 100FX LNK...

Страница 38: ...0 16TX Consideration Discussion Temperature Since the temperature within a rack assembly may be higher than the ambient room temperature make sure the rack environment temperature is within the Operat...

Страница 39: ...ack mounting the ELS100 16TX Screws 4 Rackmount Brackets 2 ELS100 16TX PWR CPU RESET COM PORT STATUS MODE TX ACT FDX MON RX COL 100 USR STATUS EPIM100 EPIM100 10X 12X 14X 16X 9X 11X 13X 15X 2X 4X 6X 8...

Страница 40: ...set button on the front panel When you power up the ELS100 16TX the following occurs 1 The Power Pwr LED is on 2 The CPU LED starts flashing Two of the Port Status Mode LEDs are on 3 After several sec...

Страница 41: ...o Section 1 6 Local Console Manager for a general overview of LCM and the command syntax LCM commands for configuring monitoring and managing the ELS100 16TX are provided in the chapters dealing with...

Страница 42: ...ELS100 16TX Twisted Pair Connection 3 Verify that a Link exists by checking that the port LINK LED is on solid green If the LINK LED is off perform the following steps until it is on a Check that the...

Страница 43: ...d contact Cabletron Systems Global Call Center Refer to Section 1 2 Getting Help for details 4 Repeat step 2 above until all connections have been made 2 6 2 Connecting a Segment to the EPIM 100FX The...

Страница 44: ...be maintained between devices so that the transmit port of one device is connected to the receive port of the other device and vice versa If the fiber optic cable being used has SC style connectors t...

Страница 45: ...tween the applicable port on the ELS100 16TX and the fiber optic device at the other end of the fiber optic link segment c Verify that the fiber connection meets the dB loss specifications If a Link h...

Страница 46: ...2 14 Unpacking and Installing Your ELS100 16TX...

Страница 47: ...u to configure and manage the ELS100 16TX through the out of band RS232C connection attached to any non intelligent terminal or a PC emulating a non intelligent terminal See Section 3 1 Assigning IP A...

Страница 48: ...be unique IP addresses are divided into classes based on what portion of the address is network or port information The address classes are A B and C Class A addresses are used in very large networks...

Страница 49: ...sses are used for small networks The first three bytes identify the network and the last byte identifies the node The first byte of a class C address must be in the range 192 223 The address 192 138 2...

Страница 50: ...address mask used in IP to specify a particular subnet If the subnet mask is 0 0 0 0 the ELS100 16TX will automatically convert the displayed mask to the standard default based on the port s IP addre...

Страница 51: ...ns include off on the default with BPDU enabled noBPDU BPDU Bridge Protocol Data Unit is a data unit transmitted as part of the IEEE 802 1d Spanning Tree protocol The exchange of BPDUs allows bridges...

Страница 52: ...ort or port range at the LCM prompt 1 Type bridge PORT RANGE off For example bridge 2 off would disable bridging on port 2 LCM responds 3 4 DISPLAYING BRIDGING FUNCTIONS To display the bridging functi...

Страница 53: ...02 1d Spanning Tree algorithm It enables you to use multiple 100BASE T Ethernet segments to connect ELS100 16TXs together while maintaining first in first out ordering of Ethernet packets In addition...

Страница 54: ...ps To solve this problem you could connect A to B with one Trunk Group and connect B to C with a second Trunk Group PWR CPU RESET COM PORT STATUS MODE TX ACT FDX MON RX COL 100 USR STATUS ELS100 16TX...

Страница 55: ...the LCM prompt a Type trunk 2 3 on PWR CPU RESET COM PORT STATUS MODE TX ACT FDX MON RX COL 100 USR STATUS ELS100 16TX EPIM100 EPIM100 10X 12X 14X 16X 9X 11X 13X 15X 2X 4X 6X 8x 1X 3X 5X 7X LINK STATU...

Страница 56: ...ELS100 16TX ports are to become forwarding ports As ports within a Trunk Group become forwarding ports traffic within the Trunk Group is momentarily halted to guarantee the first in first out ordering...

Страница 57: ...Addresses are not required for trunking to function To check the status for ports configured for trunking at the LCM prompt 1 Type status PORT RANGE ELS100 16 trunk 2 4 Port 2 trunking joined to Brid...

Страница 58: ...s automatically initiated to establish a good trunk connection Joined Trunking is enabled and the Trunking Protocol has established a good trunk connection Off Trunking is not enabled Port 1 Status EL...

Страница 59: ...nd outbound interfaces Using the LCM or an NMS you can mirror a port and select to mirror all packets by a port if the port is operating in half duplex To enable port mirroring on the ELS100 16TX 1 Co...

Страница 60: ...configuration at the LCM prompt 1 Type mirror PORT The display could look like the following Note The mirror command will display the status of all ports even if a specific port or range or ports is...

Страница 61: ...ed by the port Rx and Tx mirroring is enabled mirroring both transmit and receive packets No mirroring is not enabled Port 1 Status ELS100 16 status 1 Type Speed 100B TX 100Mbits Port Mirroring No Dup...

Страница 62: ...to perform a general broadcast across each segment of the network to find specific host addresses Figure 3 3 shows an ELS100 16TX that has been programmed to identify workgroups A and B Workgroup A u...

Страница 63: ...lay Name b Ports 7 11 16 Info All Port 16 has been assigned to a segment that includes nodes that belong to workgroup A and workgroup B Port 13 connects workgroup A to the router and port 16 connects...

Страница 64: ...GE To display the network classification of a specific workgroup at the LCM prompt 1 Type workgroup NAME INFO 3 12 ASSIGNING A COMMUNITY NAME A community name is similar to a password You use the same...

Страница 65: ...filtering Each ELS100 16TX port can be individually configured for automatic multicast storm protection You define what level of multicasts the ELS100 16TX will recognize as a multicast storm by speci...

Страница 66: ...mands However LCM commands do not exist for all configuration options You may need to modify your configuration using an NMS This section provides several common MIB variables you may want to change R...

Страница 67: ...entifies the physical location of the ELS100 16TX sysLocation system 6 DisplayString SIZE 0 255 3 16 2 Community Names The set community name variable from the Cabletron proprietary MIB must be initia...

Страница 68: ...arned addresses are automatically deleted from the ELS100 16TX Bridge Address Table after a certain length of time The aging time default is five minutes as set by the IEEE 802 1d standard However you...

Страница 69: ...for your Local Console Manager LCM connection 4 1 ELS100 16TX MANAGEMENT TOOLS LCM is a command line interface built into the ELS100 16TX that enables you to monitor and manage the ELS100 16TX through...

Страница 70: ...ce of numerous multicast packets due to a possible malfunction 4 2 1 Gathering Statistics For purposes of network management managed objects must be identified Creation of a managed object is achieved...

Страница 71: ...of statistics are available They can help you analyze both network activity and utilization and in some cases indicate faulty equipment or cabling The number of non unicast multicast and broadcast and...

Страница 72: ...cribed in the sections that follow 4 3 1 Displaying Status The status command displays the status of the ELS100 16TX and automatically pages through the status of all of the Ethernet ports pausing at...

Страница 73: ...PU utilization is light Port RX Packets TX Packets Collisions Erred Packets 1 2 3 4 0 6978 0 0 1676 8 0 0 1676 0 0 0 0 0 0 0 16 0 0 0 0 Type CR to display port 1 status Port 1 Status ELS100 16 status...

Страница 74: ...MAC address Type of address including Dynamic learned Ethernet port for the MAC address of an Ethernet port BPDU the MAC address to which all BPDUs are directed Reserved an address reserved by 802 1d...

Страница 75: ...u typed addresses display 02 04 06 03 2a 43 LCM would display the following information You can display a range of addresses by using a net mask This is helpful when determining the status associated...

Страница 76: ...secs 02 04 06 03 2a 43 02 04 06 00 2a 67 02 04 06 a3 70 2b Learned Learned Learned 5 4 6 21 1 0 Enter CR to continue Ctrl C to exit IP Address Address Mask MAC Address 1 2 3 4 5 6 7 8 192 138 217 1 0...

Страница 77: ...te of your terminal connection Setting a reboot time You can use the Local Console Manager LCM any of the Cabletron Systems NMSs or a standard SNMP based NMS to manage the ELS100 16TX Refer to Section...

Страница 78: ...ds Once an Ethernet port is disabled it will be disabled until you enable it again Resetting the ELS100 16TX will not enable a port that has been disabled 4 5 2 Enabling a Port When you enable an Ethe...

Страница 79: ...work devices that do not support RIP 4 5 3 Changing a Subnet Mask You can optionally set the subnet mask for a port A subnet mask is a 32 bit address mask used in IP to specify a particular subnet If...

Страница 80: ...u can then enter a community name to perform any SNMP sets To assign a community name at the LCM prompt 1 Type community 2 Enter the old community name If one has not been assigned you do not need to...

Страница 81: ...ud Rate You can set the baud rate for your LCM console connection The options for baud rate include 1200 2400 4800 9600 19200 The default rate is 9600 To display the current baud rate setting at the L...

Страница 82: ...baud rate For example baud 9600 would set the baud rate to 9600 LCM responds 4 5 6 Setting a Reboot Time You can enter the number of seconds the ELS100 16TX waits before rebooting At the LCM prompt 1...

Страница 83: ...e set of diagnostic self tests whenever any of the following events occur Power up Reset using the front panel Reset button a hard reset Reset via the NMS a soft reset Automatic reset in response to a...

Страница 84: ...ftware A backup version of software is always stored in non volatile memory The operational parameters of the ELS100 16TX software are also protected by a checksum comparison When the ELS100 16TX rebo...

Страница 85: ...the failure For example it will operate if a non critical component such as the out of band management port fails diagnostics However in the event of a critical failure such as a failure of the main...

Страница 86: ...S MODE TX ACT FDX MON RX COL 100 USR STATUS ELS100 16TX EPIM100 EPIM100 10X 12X 14X 16X 9X 11X 13X 15X 2X 4X 6X 8x 1X 3X 5X 7X LINK STATUS LINK STATUS 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 Port Link...

Страница 87: ...tes the monitor port Indicates the port s being monitored Indicates that errored packets were received Link Individual Ports On Off Indicates the link is good Indicates there is no link Status Individ...

Страница 88: ...our ELS100 16TX does not power up check each one of the following Make sure the power source is operational Make sure the power cord is securely connected If the ELS100 16TX still does not power up co...

Страница 89: ...he number of total collisions has dramatically increased using LCM 5 5 2 ELS100 16TX Has Rebooted Use the LCM ident command to check the ELS100 16TX diagnostic codes Write down these codes exactly as...

Страница 90: ...5 8 ELS100 16TX Diagnostics and Troubleshooting...

Страница 91: ...tage Auto ranging from 100 120 200 240 Vac Frequency 50 60 Hz AC power consumption 80 watts Connector Ports 16 RJ45 Ethernet ports MDI X 1 RS232C port for Local Console Manager LCM 2 slots for optiona...

Страница 92: ...ty Receive activity Both Transmit and Receive activity Collision 100 Mbps Duplex MON monitor User defined CPU Power PWR Standard Support IEEE 802 1 Part D IEEE802 2 Logical Link Control IEEE 802 3 CSM...

Страница 93: ...EC Electromagnetic Compatibility FCC Part 15 EN 55022 EN 50082 1 89 336 EEC CSA C108 8 VCCI V 3 A 2 SERIAL CABLE PIN ASSIGNMENTS For a PC running a Windows terminal connected to the RS232C Network Man...

Страница 94: ...r to the diagram below and note how the pins are numbered Be sure to hold the connectors in the same orientation when connecting the wires to the pins Figure A 1 Connector Pin Numbers Each twisted pai...

Страница 95: ...OVER WIRING Two ELS100 16TXs can communicate only if the transmitter on one unit is connected to the receiver on the other unit This reversal or crossover function can be implemented either in the wir...

Страница 96: ...segments is significant for coax networks only A 7 EPIM 100FX SPECIFICATIONS The ELS100 16TX uses a Ethernet Port Interface Module EPIM to provide front panel cable connections FEPIMs are user instal...

Страница 97: ...y compare the values given above to those measured on any particular port If power levels are being measured with an average power meter add 3 dBm to the measurement to compare the measured values to...

Страница 98: ...A 8 Technical Specifications...

Страница 99: ...NSI American National Standards Institute One of several organizations that establishes standards that apply to internetworking ARP Address Resolution Protocol An auxiliary protocol of the IP layer us...

Страница 100: ...exchange of BPDUs allows bridges within a network to logically configure the network as a single spanning tree bps bits per second The basic unit of data communications rate measurement bridge An int...

Страница 101: ...rvices to higher layers datagram Abbreviated and connectionless single packet message sent from one station to another data rate or speed The maximum number of bits of information that can be transmit...

Страница 102: ...layer extended LAN A collection of LANs interconnected by protocol independent bridges or switches filtering rate A measure in packets per second of the ELS100 16TX s efficiency in examining each fram...

Страница 103: ...er standard that uses the CSMA CD access method on a bus topology LAN IEEE 802 6 Standard for metropolitan area networks MANs currently under development initialization Transition of a device or netwo...

Страница 104: ...nd LAN local area network A network that interconnects a variety of devices computers printers servers and so on within a limited geographical area A LAN typically connects devices within a building o...

Страница 105: ...ion base A collection of objects unique to a specific device that can be accessed via a network management protocol The ELS100 16TX has its own MIB multicast Packets destined for more than one address...

Страница 106: ...at contains the data associated with a particular protocol peer to peer Term used to describe data transmission between entities in the same sublayer of the OSI model physical layer Layer 1 of the OSI...

Страница 107: ...works are referred to as segments service A set of functions offered to a user by a provider SNMP simple network management protocol A TCP IP protocol for communication between a network management sy...

Страница 108: ...ansmission control protocol Internet protocol Internetworking protocols sometimes referred to as the Internet suite of protocols topology The arrangement of devices and cable paths that make up a netw...

Страница 109: ...ition of a station in a network to another station in the same network A station is upstream from its neighbor if it receives data before its neighbor receives the data WAN wide area network A communi...

Страница 110: ...B 12 Glossary...

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