Cabletron Systems SEHI100TX-22, User Manual

Page 1: ...SEHI100TX 22 100BASE T INTELLIGENT STACKABLE HUB USER S GUIDE...

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Page 3: ...names 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 follow...

Page 4: ...ing radio interference in commercial and or industrial areas Consequently when used in a residential area or in an adjacent area thereto radio interference may be caused to radios and TV receivers etc...

Page 5: ...IN NO EVENT 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...

Page 6: ...22 EN 50082 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...

Page 7: ...ations 3 1 3 1 1 HubSTACK Interconnect Cable Requirements 3 1 3 1 2 UTP Cable Specifications 3 2 3 1 3 Multimode Fiber Optic Cable Specifications 3 3 3 2 Network Cable Lengths 3 4 3 3 Network Port Spe...

Page 8: ...n Screen 7 8 7 5 The Community Name Table Screen 7 9 7 5 1 Editing the Community Name Field 7 11 7 6 The Configuration Screen 7 12 7 6 1 Setting the IP Address 7 13 7 6 2 Setting the Subnet Mask 7 14...

Page 9: ...e DISABLE PORT Command 7 27 7 9 4 Setting the UPDATE FREQency Field 7 28 7 9 5 Exiting the Device Statistics Screen 7 28 APPENDIX A EPIM SPECIFICATIONS A 1 EPIM Specifications A 1 A 1 1 EPIM 100TX A 1...

Page 10: ...Contents viii SEHI100TX User s Guide...

Page 11: ...ual This chapter also provides information about how to get help and concludes with a list of related manuals Chapter 2 SEHI Features and Options briefly describes SEHI features and provides informati...

Page 12: ...to the SEHI by setting specific MIB OID strings 1 2 DOCUMENT CONVENTIONS The following conventions are used throughout this document NOTE Note symbol Calls the reader s attention to any item of inform...

Page 13: ...ironment layout cable type etc Network load and frame size at the time of trouble if known The serial and revision numbers of all Cabletron Systems products in the network The device history i e have...

Page 14: ...Use the Cabletron Systems SEH100TX 22 100BASE T User s Guide to supplement the procedures and other technical data provided in this manual The procedures contained in the SEH100TX 22 100BASE T User s...

Page 15: ...0TX 22 non intelligent stackable hubs NOTE The terms SEHI Stackable Ethernet Hub with Intelligence and SEH Stackable Ethernet Hub are used throughout this manual when describing the features and funct...

Page 16: ...the problem segment Only devices on the problem segment are affected When the problem is solved the SEHI automatically reconnects the isolated segment to the network Polarity Detection and Correction...

Page 17: ...OM port on the SEHI Cabletron Systems provides a UTP console cable with RJ45 connectors at each end adapters for DB9 or DB25 connections and an instruction sheet with adapter pinout information with t...

Page 18: ...letron Systems SPECTRUM Element Manager Windows Cabletron Systems Remote SPECTRUM Portable Management Applications Third Party SNMP compliant Network Management Packages 2 6 OPTIONAL EPIMS EPIMs are n...

Page 19: ...e care in planning and preparing the network cabling and connections The quality of the connections and the length of cables are critical factors in determining the reliability of the network The foll...

Page 20: ...ory 5 cables are marked on the cable jacket as Cat 5 Category 5 Level 5 Level V or an equivalent Impedance UTP cables typically have an impedance of between 85 to 110 ohms Jitter Intersymbol interfere...

Page 21: ...timode Fiber Optic Cable Specifications The SEHI supports the Cabletron Systems EPIM 100FX and EPIM 100FMB These EPIMs meet IEEE 802 3u standards When connecting a fiber optic segment to the SEHI EPIM...

Page 22: ...both Figure 3 1 shows a simplified example of a network with one Class I repeater Link segments A and B represent the longest links in the network In this case if both segment A and segment B are UTP...

Page 23: ...ble when used with a Class I repeater CAUTION The maximum length of an individual UTP segment may be no more than 100 meters Table 3 1 Maximum Class I Network Cable Length Number of Repeaters UTP UTP...

Page 24: ...cess to a Local Management Console The COM port supports a Digital Equipment Corporation VT320 terminal or PC emulation of the VT320 terminal Figure 3 3 shows the pinouts for the RJ45 COM port Figure...

Page 25: ...environmental requirements of the SEHI Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 73 C 22 F to 164 F Operating Humidity 15 to 90 non condensing 3 5 3 Agency Approvals...

Page 26: ...s the immunity requirements of EN 50082 1 including IEC 801 2 ESD IEC 801 3 Radiated Susceptibility and IEC 801 4 EFT B 3 6 PHYSICAL SPECIFICATIONS This section details the physical specifications for...

Page 27: ...sually inspect the SEHI If there are any signs of damage contact Cabletron Systems Technical Support immediately Refer to Section 1 3 for instructions on getting help 4 Read the SEHI Release Notes inc...

Page 28: ...form this operation Leaving the switch in the UP position results in user installed parameters such as IP address and Community Names being cleared from NVRAM whenever the SEHI loses power and or is r...

Page 29: ...its power source and with an unrestricted free surface area as shown in Figure 4 2 Figure 4 2 Tabletop or Shelf Installation Proceed to Section 4 5 Powering Up and Stacking the SEHI 4 4 RACKMOUNT INS...

Page 30: ...the Strain Relief Bracket WARNING Before installing the SEHI into a rack ensure that the rack can support the device s without compromising the stability of the rack Otherwise personal injury and or e...

Page 31: ...d cover screws provided in the rackmount kit attach the rack mounting brackets to each side of the SEHI Figure 4 4 Installing the Rack Mounting Brackets Do not remove the cover from the SEHI100TX 22 D...

Page 32: ...EHI in the Rack Proceed to Section 4 5 Powering Up and Stacking the SEHI CAUTION The cooling fans at the rear panel of the SEHI must have adequate clearance two inches on either side and in the rear f...

Page 33: ...ort Do not proceed with the following steps until the CPU LED is a steady blinking green CAUTION Failure to follow this procedure may result in damage to the equipment CAUTION If you are using an inte...

Page 34: ...il all SEH hubs are connected Figure 4 6 Stacking the SEHI CAUTION Do NOT connect the interconnect cable between the SEH and the SEHI before powering up the SEH Otherwise damage to the SEH may result...

Page 35: ...an EPIM 100TX EPIM 100FX or an EPIM 100FMB as follows 1 Remove the coverplate or the existing EPIM whichever applies 2 Slide the new EPIM into place making sure that the connectors on the rear of the...

Page 36: ...Chapter 4 Installation 4 10 SEHI100TX User s Guide...

Page 37: ...3 Prior to connecting the network cabling check the connectors for the proper pinouts as shown in Chapter 3 5 1 1 Connecting to Network Ports Attach UTP segments to the RJ45 network ports on the fron...

Page 38: ...Systems Technical Support 5 1 2 Connecting to an EPIM 100TX The EPIM 100TX is often used to provide a connection between the SEHI and a bridge router or switch Normally in this configuration a straigh...

Page 39: ...100TX is on If the LED is off perform each of the following steps until it is on a Check that the 100BASE TX device at the other end of the twisted pair segment is powered up b Verify that the RJ45 co...

Page 40: ...the connectors 2 Insert one end of the SC connector into the EPIM 100FX or EPIM 100FMB on the SEHI See Figure 5 3 Figure 5 3 EPIM 100FX or EPIM 100FMB Port NOTE An odd number of crossovers preferably...

Page 41: ...and the fiber optic device at the other end of the fiber optic link segment c Verify that the fiber optic connection meets the dB loss specifications outlined in Section 3 1 3 If a link is not establ...

Page 42: ...Chapter 5 Connecting to the Network 5 6 SEHI100TX User s Guide...

Page 43: ...ollows 1 Check that the LNK LED if applicable for the port is on If the LED is off perform each of the following steps until the LED is on a Check that the 100BASE TX device at the other end of the tw...

Page 44: ...ins segmented until a good packet is transmitted received without collisions If the LNK LED is still not on contact Cabletron Systems Technical Support Refer to Section 1 3 for instructions about gett...

Page 45: ...ndicates an irregular LED pulse Blinking indicates a steady LED pulse LED NAME PWR Power CPU Central Processing Unit CLN Collision RCV Receive LNK Link LED COLOR Off Green Solid Off Green Flashing Gre...

Page 46: ...ent RCV LED A LNK When a green LNK LED is on it indicates an established link between the associated port and the device at the other end of the segment The LNK LED remains on as long as a link is mai...

Page 47: ...e front panel 3 Wait until the unit boots approximately 12 seconds 4 Return the NVRAM switch to the DOWN position Figure 6 2 NVRAM Switch Location To prevent the possibility of electrical shock do not...

Page 48: ...Chapter 6 Troubleshooting 6 6 SEHI100TX User s Guide...

Page 49: ...trol access to the SEHI through the community names established in the Community Name Table Designate which Network Management Workstations receive trap messages from the device Navigate through the M...

Page 50: ...form the same Local Management function For example Press ENTER means press either ENTER or RETURN unless this manual specifically instructs you otherwise SPACE Bar and BACKSPACE Key These keys cycle...

Page 51: ...C running a VT series emulation software package An RJ45 console cable is required to attach the management terminal to the SEHI The console cable is included with the SEHI in a package that contains...

Page 52: ...t as shown in Figure 7 1 Connect the console cable to the SEHI as follows 1 Attach the male RJ45 connector to the COM port of the SEHI 2 Attach the female end 25 pin or 9 pin as applicable to the COM...

Page 53: ...Terminal Setup Parameters Menu Function Selection Display Setup Columns 80 Columns Controls Interpret Controls Auto Wrap No Auto Wrap Test Cursor Cursor General Setup Mode 7 Bit Control Cursor Keys No...

Page 54: ...rd for Super User access is public or press ENTER NOTE The password is one of the community names specified in the Community Name Table Access to certain Local Management capabilities depends on the d...

Page 55: ...turns to the beginning of the password entry field If the password is valid the associated access privilege appears briefly then the Feature Selection screen Figure 7 3 appears NOTE If the terminal ke...

Page 56: ...he arrow keys to highlight an option then press ENTER or press the corresponding Function key The selected screen appears To exit your Local Management session use the arrow keys to highlight the EXIT...

Page 57: ...es are passwords to Local Management and are agents of security control to the SEHI SEHI access is controlled by establishing up to four different levels of security authorization Basic Read Read Only...

Page 58: ...re possible Basic Read This allows Read Only access to Local Management but excludes read privileges to the Component Trap screen Read Only This allows Read Only access to Local Management but exclude...

Page 59: ...eld adjacent to the desired access level 2 Enter the community name maximum of 32 characters into the field 3 Press ENTER 4 Repeat steps 1 through 3 for editing any of the other community names 5 Use...

Page 60: ...tack This option overrides the Port Disable setting in the Statistics screen The following sections explain each field on the Configuration screen and instructions on how to change them I F The number...

Page 61: ...e that will forward packets to other IP subnetworks Serial Port 1 Application Displays the port s application setting as CONSOLE Baud Rate Displays the Baud Rate setting of the device attached to the...

Page 62: ...tting of 0 0 0 0 when all trap designated workstations are on the SEHI subnet Use the following steps to set the subnet mask 1 Use the arrow keys to highlight the SubNET Mask field 2 Enter the subnet...

Page 63: ...OK message appears indicating that the changes have been saved to memory 7 6 4 Using the Port Enable Override Use the following steps to override the Disable Port settings 1 Use the arrow keys to hig...

Page 64: ...option then press ENTER or F8 The screen shown in Figure 7 6 appears Figure 7 6 Trap Table Screen The Trap Table defines the management stations that receive SNMP Traps for alarm event notification Th...

Page 65: ...keys to highlight the Traps field and enter Y to send alarms from the SEHI to the workstation or N to prevent alarms from being sent 4 Press ENTER 5 Use the arrow keys to highlight the appropriate Tra...

Page 66: ...options depends on the access status accorded to the user s community name This section describes Super User management capabilities SNMP Tools allows access to valuable MIB information The user gets...

Page 67: ...er prefix common to all Object Identifiers OIDs found in the MIBs 1 3 6 1 is the default prefix OID This is a modifiable field GET Lets you retrieve MIB objects using SNMP protocol SET Allows users wi...

Page 68: ...integer Data displays what the object identifier represents RECALL OID Recalls from memory the last OID used STEP Displays the MIB walk step by step giving the user time to view specific leaves in de...

Page 69: ...he next OID 1 Highlight GETNEXT with the arrow keys then press ENTER or F8 GETNEXT OID F9 appears 2 Enter the desired OID or OID extension Press F9 to recall the last OID request The recalled OID may...

Page 70: ...eded The WALK command scrolls through OIDs numerically sequential to the initial OID request The STEP command scrolls the MIB Walk one OID at a time Cycling allows you to specify how many GETNEXT comm...

Page 71: ...NTER 2 Enter the number of cycles desired to occur after ENTER CYCLE COUNT then press ENTER 3 Enter how many seconds delay desired between get next requests after ENTER CYCLE DELAY secs then press ENT...

Page 72: ...7 8 appears Figure 7 8 Device Statistics Screen The following sections describe Device Statistics screen fields and provide instructions on how to change them BYTES RECEIVED Displays the number of byt...

Page 73: ...mission of the packet CRC ERRORS Displays the number of packets with bad Cyclic Redundancy Checks CRC that have been received from the network The CRC is a 4 byte field in the data packet that ensures...

Page 74: ...selected port UPDATE FREQ This command lets the user select the time interval between Stack Module Port counter updates Choose update intervals in increments of 3 seconds with the maximum interval be...

Page 75: ...mand The ENABLE PORT command lets the user enable the selected port The user must first use the PORT command to select the desired port Use the following steps to set the ENABLE PORT command 1 Use the...

Page 76: ...EQ command at the bottom of the screen 2 Use the or key to increase or decrease the time in 3 second increments until the appropriate time is displayed 3 Press ENTER The displayed time is saved 7 9 5...

Page 77: ...s an RJ45 connector supporting Unshielded Twisted Pair UTP cabling The slide switch on the EPIM 100TX determines the crossover status of the cable pairs If the switch is on the X side the pairs are in...

Page 78: ...wer levels after optical overshoot A peak power meter must be used to correctly compare the values given above to those measured on any particular port If power levels are being measured with an avera...

Page 79: ...next domain or switch port is only 263 meters 100 meters of UTP and 163 meters of fiber optics There are circumstances where the maximum fiber optic cable length of 163 meters does not meet some requ...

Page 80: ...isted are peak power levels after optical overshoot A peak power meter must be used to correctly compare the values given above to those measured on any particular port If power levels are being measu...

Page 81: ...ownload of the new firmware image is in progress Before downloading the image to a device you must do the following Load the image file onto your network TFTP server Decompress the image file NOTE Dow...

Page 82: ...48 136 S 11 05 tftp s The term tftp s located at the end of the root string indicates TFTP is active If TFTP is NOT running only the grep process appears 2 If you do NOT have a tftpboot directory the...

Page 83: ...ucts reside in the Cabletron Systems enterprise MIBs group 52 The specific OIDs necessary to perform an image file download reside in the common download group under ctDL Cabletron Download The full O...

Page 84: ...OnBoot 1 3 6 1 4 1 52 4 1 5 8 1 1 0 integer 1 2 ctDLCommitRAMToFlash 1 3 6 1 4 1 52 4 1 5 8 1 2 0 integer 1 3 ctDLTFTPRequestHost 1 3 6 1 4 1 52 4 1 5 8 1 4 0 IP address Enter the IP address of the TF...

Page 85: ...BLE override 7 13 serial port application 7 13 subnet mask 7 13 D Default gateway 7 15 Device statistics 00W collisions 7 25 alignment errors 7 25 bytes received 7 24 collisions 7 25 CRC errors 7 25 d...

Page 86: ...FX 5 4 EPIM 100TX 5 2 SEH100TX 22 5 1 Network port specifications SEHI100TX 22 3 6 NVRAM setting 6 5 O OIDs 7 18 Operating specifications 3 7 P Port ENABLE override 7 15 Power supply requirements 3 7...

Page 87: ...die Anwendung des Geraetes geeignet und der zum Benuetzen im Lande der Anwendung anerkannt ist SPANISH El cable principal de la red el ctrica utilizado con este equipo debe tener 2 conductores y 1 to...

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