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Technical Specifications

A-7

A.7 FEPIM SPECIFICATIONS

The ELS10-26 uses a Fast Ethernet Interface Module (FEPIM) to
provide front panel cable connections. FEPIMs are user-installable.
See Section 2.2, Installing an FEPIM.

FE-100TX

The FE-100TX is an RJ45 connector supporting Unshielded Twisted
Pair (UTP) cabling.

The slide switch on the FE-100TX determines the crossover status
of the cable pairs. If the switch is on the

X

side, the pairs are

internally crossed over. If the switch is on the

=

side, the pairs are

not internally crossed over. Figure A-2 shows the pinouts for the
FEPIM-100TX in both positions.

Figure A-2. FE-100TX Pinouts

FE-100FX

The FE-100FX shown in Figure A-3 supports multimode fiber optic
cabling. The FE-100FX is equipped with an SC style port.
Specifications for the FE-100FX are listed below.

Position X
(crossed over)

1. RX+
2. RX-
3. TX+
4. NC

5. NC
6. TX-
7. NC
8. NC

FE-100TX

10

100

x

=

Position =
(not crossed over)

1. TX+
2. TX-
3. RX+
4. NC

5. NC
6. RX-
7. NC
8. NC

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Содержание SmartSTACK 10 ELS10-26

Страница 1: ... 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM 9032243 01 ...

Страница 2: ......

Страница 3: ...s 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 two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation NOTE This equipment has been tested and ...

Страница 4: ...d in 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 utilizing this product carefully read this License Agreement This document is an agreement between you the end user and Cabletron Systems Inc Cabletron that sets forth your rights and obligations with r...

Страница 5: ...T 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 INCIDENTAL CONSEQUENTIAL OR RELIANCE DAMAGES OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE ...

Страница 6: ...2 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 packaged with this notice conforms to the above directives Manufacturer Legal Representative in Europe Mr Ronald Fotino Mr J Solari ___________________________________ ________________________________...

Страница 7: ...N FEPIM 2 4 2 3 INSTALLING THE ELS10 26 2 5 2 4 CHECKING THE POWER UP DIAGNOSTICS SEQUENCE 2 8 2 5 CONNECTING THE LOCAL CONSOLE MANAGER 2 9 2 6 CONNECTING TO THE NETWORK 2 9 2 6 1 Connecting UTP Cables 2 10 2 6 2 Connecting a UTP Segment to the FE 100TX 2 11 2 6 3 Connecting a Multimode Segment to the FE 100FX 2 13 CHAPTER 3 CONFIGURING YOUR ELS10 26 3 1 ASSIGNING IP ADDRESSES 3 2 3 1 1 Displaying...

Страница 8: ...NG YOUR ELS10 26 4 1 ELS10 26 MANAGEMENT TOOLS 4 1 4 2 ELS10 26 STATISTICS 4 1 4 2 1 Gathering Statistics 4 2 4 2 2 System Statistics 4 2 4 2 3 Ethernet Port Statistics 4 3 4 3 USING LCM TO CHECK ELS10 26 STATUS 4 4 4 3 1 Displaying Status 4 4 4 3 2 Displaying MAC Addresses 4 6 4 3 3 Displaying Manufacturing Information 4 8 4 4 MANAGING THE ELS10 26 4 9 4 5 USING LCM TO MANAGE THE ELS10 26 4 9 4 5...

Страница 9: ... 5 3 5 3 STATUS AND ACTIVITY INDICATORS 5 3 5 4 TROUBLESHOOTING 5 6 5 5 ELS10 26 DOES NOT POWER UP 5 6 5 5 1 Connectivity Problems 5 6 5 5 2 ELS10 26 Has Rebooted 5 6 5 5 3 ELS10 26 Does Not Respond to NMS 5 7 APPENDIX A TECHNICAL SPECIFICATIONS A 1 ELS10 26 SPECIFICATIONS A 1 A 2 Serial Cable Pin Assignments A 3 A 3 10BASE T Pin Assignments A 4 A 4 Straight through Wiring A 5 A 5 Crossover Wiring...

Страница 10: ...viii Contents ...

Страница 11: ...w Chapter 1 Introduction outlines the contents of this manual and provides an overview of the SmartSTACK 10 ELS10 26 s switching functions applications and the Local Console Manager LCM Chapter 2 Unpacking and Installing Your ELS10 26 describes the SmartSTACK 10 ELS10 26 front and rear panels how to install the SmartSTACK 10 ELS10 26 how to connect the Local Console Manager LCM and how to connect ...

Страница 12: ...ossary provides a glossary of terms both specific to the SmartSTACK 10 ELS10 26 and common to the networking field 1 2 GETTING HELP If you need additional support related to the SmartSTACK 10 ELS10 26 or if you have any questions comments or suggestions concerning this manual contact Cabletron Systems Global Call Center Phone 603 332 9400 Internet mail support ctron com FTP ctron com 134 141 197 2...

Страница 13: ...n The device history i e have you returned the device before is this a recurring problem etc Any previous Return Material Authorization RMA numbers For additional information about Cabletron Systems products visit our World Wide Web site http www cabletron com 1 3 DOCUMENT CONVENTIONS The following conventions are used throughout this document LCM commands prompts and information displayed by the ...

Страница 14: ...tains enterprise MIB information Interconnections Bridges and Routers Radia Perlman Addison Wesley 1992 Internetworking with TCP IP Principles Protocols 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 1994 Note Calls the reader s attention to any item ...

Страница 15: ...tSTACK 10 ELS10 26 Provides dedicated bandwidth for each network connected to its ports Provides full store and forward bridging functionality Provides complete error checking functionality Provides port trunking to increase bandwidth Provides a dedicated monitor port for enhanced troubleshooting Supports Auto negotiation ELS10 26TX Front Panel ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE T...

Страница 16: ...parate broadcast domains Compilation of statistics by port for traffic generated by each user device connected to a SmartSTACK 10 ELS10 26 segment 1 5 1 SmartSTACK 10 ELS10 26 Architecture The SmartSTACK 10 ELS10 26 enables you to link two or more Local Area Networks LANs together To accomplish this the SmartSTACK 10 ELS10 26 regulates network traffic on the basis of the source and destination add...

Страница 17: ... not process any Network Layer information it provides a high level of performance in terms of packet throughput In addition the SmartSTACK 10 ELS10 26 does not need to learn network topology requiring less programming and configuration time Store and Forward Switching As an intelligent Ethernet switch the SmartSTACK 10 ELS10 26 uses store and forward switching Store and forward switching allows t...

Страница 18: ... as the originating packet the SmartSTACK 10 ELS10 26 forwards the packet to the network segment associated with that destination address if known However if the packet s source and destination address are on the same network segment known as local traffic the packet is automatically discarded i e ignored by the SmartSTACK 10 ELS10 26 For example a file transmitted from Workstation A to Workstatio...

Страница 19: ...ning Tree compliant bridges in the network dynamically configure the network topology into a single Spanning Tree by exchanging Bridge Protocol Data Units BPDUs Typically each LAN segment is sent one BPDU every two seconds this is the default setting When there are multiple SmartSTACK 10 ELS10 26s connecting LANs in a loop the Spanning Tree algorithm determines which SmartSTACK 10 ELS10 26 should ...

Страница 20: ...ctional When devices are added to the network removed from it or relocated you do not have to reconfigure the SmartSTACK 10 ELS10 26 The unit automatically learns new device addresses recognizes when a previously used address is missing or when a device has been moved to a new LAN segment An address stored in the Bridge Address Table is discarded if there is no subsequent activity from that addres...

Страница 21: ... mirroring Local port mirroring is when the diagnostic port is on the same SmartSTACK 10 ELS10 26 as the mirrored port The mirrored port has to be local to the SmartSTACK 10 ELS10 26 Packet Capturing and Monitoring Only the 10BASE T ports on the SmartSTACK 10 ELS10 26 and not the 100BASE ports can be mirrored The monitoring of network traffic is performed by the SmartSTACK 10 ELS10 26 hardware 1 5...

Страница 22: ...4 SmartSTACK 10 ELS10 26 Trunking with 10 Mbps Ports ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 1...

Страница 23: ...STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X...

Страница 24: ...TUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20...

Страница 25: ...f the network to find specific host addresses ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 ...

Страница 26: ...ernet segments A and B that do not include a SmartSTACK 10 ELS10 26 Figure 1 8 Multiple Ethernet Segments Sharing 10 Mbps Bandwidth Each host on segments A and B is limited to sharing a network bandwidth of 10 Mbps A B Repeater Traffic Traffic ...

Страница 27: ... of a workgroup will receive and transmit packets from any ports However if you configure the SmartSTACK 10 ELS10 26 with workgroup A and B as shown in Figure 1 9 broadcast traffic from workgroup A ports will not be seen on workgroup B ports and vice versa ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26...

Страница 28: ...ms Network Management System or a standard SNMP based Network Management System to manage the SmartSTACK 10 ELS10 26 For a list of available SmartSTACK 10 ELS10 26 network management tools see Section 4 1 SmartSTACK 10 ELS10 26 Management Tools The following sections describe LCM command syntax and the basic LCM commands for logging in logging out and getting help LCM commands used for configuring...

Страница 29: ... error message A 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 ELS10 26 address 00 40 27 04 1a 0f Information that you need to enter with an LCM command is enclosed in square brackets For example you must enter a port number and an IP address to execute the ipaddr POR...

Страница 30: ... 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 prompt ELS10 26 Help Displays the menu of available commands Help can also be displayed by typing a question mark The output from the help command is displayed below ...

Страница 31: ...to disable a set of ports community to change the password community name sttimer TIME VALUE to set or display st age timer workgroup NAME delete PORT RANGE INFO to set or display workgroups speed PORT RANGE auto 10 100 to set or display speed duplex PORT RANGE auto half full to set or display duplex mode mirror PORT Rx Tx both off to set or display port mirroring time SystemTime HHMMSS to set or ...

Страница 32: ...plays the traps messages captured by the SmartSTACK 10 ELS10 26 The following is an example of a traplog display ELS10 26TX traplog Trap 16 0 00 00 The unit has booted Trap 25 0 00 00 The unit s spanning tree maximum age has changed Trap 26 0 00 00 The unit s spanning tree hello time has changed Trap 27 0 00 00 The unit s spanning tree forward delay times has changed Trap 3 0 00 02 port 1 The curr...

Страница 33: ...ion to this manual the Getting Started with the SmartSTACK 10 ELS10 26 guide the ELS10 26 MIB Reference Guide and Release Notes are also included 2 1 ELS10 26 FRONT PANEL The ELS10 26 provides 25 10BASE T Ethernet ports and one 100BASE T Fast Ethernet connection An additional 100 Mbps port can be added by using an FEPIM either copper or fiber Each ELS10 26 also includes one fixed port used for por...

Страница 34: ...ATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM RJ45 Ethernet 10BASE T Ports Status LEDs Monitor Port Reset Switch Com Port 100BASE Ethernet Port 100BASE Ethernet FEPIM Port S...

Страница 35: ...icates the port is copying to the monitor port On Indicates that errored packets were received Link Individual Ports On Indicates the link is good Off Indicates there is no link Status Individual Ports On Blinking Indicates you are monitoring the port for a selected segment status condition This LED always indicates the selected status mode CPU On Indicates the ELS10 26 is operational Blinking Ind...

Страница 36: ...4 Install the FEPIM as shown in Figure 2 2 Ensure that the rear connector is seated firmly before tightening the three mounting screws 5 Replace the plate and two screws on the side of the FEPIM slot 6 Replace the cover of the ELS10 26 Table 2 2 Description of ELS10 26 Buttons Button Function Status Cycles through the Segment Status options TX RX Act Col FDX 100 MON and Usr for all ports The right...

Страница 37: ...Unpacking and Installing Your ELS10 26 2 5 Figure 2 2 Installing an FEPIM 1742 39 FE 100TX 10 100 16 15 Standoff Standoffs Module Motherboard Connector Module Connector Faceplate ...

Страница 38: ...temperature make sure the rack environment temperature is within the Operating Temperature range specified in Appendix A Air Flow Make sure there is at least 2 inches or more on both sides of the ELS10 26 to allow for adequate air flow Mechanical Loading Do not place equipment on top of a rack mounted ELS10 26 Circuit Overloading Make sure the power supply circuit to the rack assembly is not overl...

Страница 39: ...RT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM Screws 4 19...

Страница 40: ...ower up the ELS10 26 the following occurs 1 All LEDs except the Port Link LEDs turn on for one second 2 The Power Pwr LED remains on 3 The CPU LED starts flashing 4 After several seconds the Port Link LEDs turn on individually in sequence from left to right until all are lit then go off 5 After several more seconds the Ready LED will stay on indicating that the power up diagnostics sequence is com...

Страница 41: ... several times If the ELS10 26 and terminal are operational LCM responds with the ELS10 26 prompt 4 LCM is now ready to use Refer to Section 1 6 Local Console Manager for a general overview of LCM and the command syntax LCM commands for configuring monitoring and managing the ELS10 26 are provided in the chapters dealing with those topics 2 6 CONNECTING TO THE NETWORK This section provides the pro...

Страница 42: ...LS10 26 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 Caution To establish a link you must have an odd number of crossovers preferably one between 10BASE T devices of the same type i e from repeater to repeater or transceiver to transceiver ELS10 26TX STATUS PORT STATUS MODE...

Страница 43: ... details 4 Repeat step 2 above until all connections have been made 2 6 2 Connecting a UTP Segment to the FE 100TX An FE 100 TX installed in port slot 27 is often used to provide a connection between the ELS10 26 and a bridge router or switch Usually in this configuration a straight through cable is used and the Fast Ethernet Interface Module crossover switch shown in Figure 2 7 is set to not cros...

Страница 44: ...d to the segment and is powered ON 2 Connect the twisted pair segment to the module by inserting the RJ45 connector on the twisted pair segment into the RJ45 port on the module See Figure 2 7 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 100BASE TX device at the other end of the tw...

Страница 45: ...n SC style network port see Figure 2 8 Cabletron Systems supplies fiber optic cable that uses SC style connectors that are keyed to ensure proper crossing over of the transmit and receive fibers Fiber Optic Network Connection 1 Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors Caution An odd number of crossovers...

Страница 46: ...g that the port LINK LED is solid green If the LINK LED is off perform the following steps until it is on a Check that the power is turned on for the device at the other end of the Link Caution Do not touch the ends of the fiber optic strands and do not let the ends come in contact with dust dirt or other contaminants Contamination of the ends causes problems in data transmissions If the ends beco...

Страница 47: ...end of the fiber optic link segment c Verify that the fiber connection meets the dB loss specifications If a Link has not been established contact Cabletron Systems Global Call Center Refer to Section 1 2 Getting Help for details The ELS10 26 is now ready to be set up through Local Management Refer to Chapter 4 Monitoring and Managing Your ELS10 26 to configure the ELS10 26 ...

Страница 48: ...2 16 Unpacking and Installing Your ELS10 26 ...

Страница 49: ...to configure and manage the ELS10 26 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 Addresses Once you have assigned an IP address you can use any of the following network management tools to configure and manage the ELS10 26 SPECTRUM SPEL SPMA Any SNMP based NMS Configuration parameters a...

Страница 50: ...s for each port must 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 that support many ports The first byte identifies the network and the other three bytes identify the node The first byte of a class A address must be in the range 1 126 The addres...

Страница 51: ...ses are used for small networks The first three bytes identify the network and the last byte identifies the port The first byte of a class C address must be in the range 192 223 The address 192 138 217 10 identifies node 10 on network 192 138 217 To assign an IP address to a port at the LCM prompt 1 Type ipaddr PORT NUMBER IP ADDRESS For example ipaddr 6 192 138 217 40 would set the IP address of ...

Страница 52: ... address mask used in IP to specify a particular subnet If the subnet mask is 0 0 0 0 the ELS10 26 will automatically convert the displayed mask to the standard default based on the port s IP address class Class A address masks are 255 0 0 0 Class B address masks are 255 255 0 0 Class C address masks are 255 255 255 0 IP Address Address Mask MAC Address 1 2 3 4 5 6 7 8 192 138 217 1 0 0 0 0 192 13...

Страница 53: ...ons 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 within a network to logically configure the network as a single spanning tree Note When you change the subnet mask for a port you must also enter the IP address for that port Make sure you enter the ...

Страница 54: ...rt 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 functions that are enabled for all ports at the LCM prompt 1 Type bridge LCM responds with a list of all ports and the bridging function that is enabled For example typing bridge would display the bridging s...

Страница 55: ...xtension to the 802 1D Spanning Tree algorithm It enables you to use multiple 10BASE T Ethernet segments to connect ELS10 26s together while maintaining first in first out ordering of Ethernet packets In addition if any of the Ethernet segments configured for trunking become inoperable those Ethernet segments are automatically bypassed Figure 3 1 shows two ELS10 26s connected by four 10BASE T cros...

Страница 56: ...X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X ...

Страница 57: ...K STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MONX 26X 27 LINK STATUS LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 ...

Страница 58: ... ELS10 26 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 of the Ethernet packets 3 6 DISABLING TRUNKING To turn off trunking at the LCM prompt 1 Type trunk PORT RANGE off For example trunk 2 4 off Note The ELS10 26 to ELS10 26 connections must be point to po...

Страница 59: ... 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 ELS10 26 trunk 2 4 Port 2 trunking joined to Bridge MAC Addr 00 40 27 00 06 1f IP Addr 192 138 217 1 Port 3 trunking joined to Bridge MAC Addr 00 40 27 00 06 c3 IP Addr 192 138 200 2 Port 4 trunking joined to Bridge MAC Addr 00 50 36 00 07 4a IP Addr...

Страница 60: ...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 ELS10 26 status 1 Type Speed 10B TPX 10Mbits Port Mirroring No Duplex Mode Half Duplex Bridging Transparent Bridging Enabled Disabled Enabled Rip listening Spanning Tree Forwarding Trunking State Off Pk...

Страница 61: ...ween the inbound and outbound interfaces Using the LCM or a NMS you can monitor a port and select to monitor only packets received only packets transmitted or packets both received and transmitted by a port if the port is operating in half duplex In full duplex you can mirror either recieved packet or transmitted packet not both To enable port monitoring on the ELS10 26 1 Connect a network analyze...

Страница 62: ...ple mirror 2 off 3 10 DISPLAYING MONITORING STATUS To check the status of your current monitoring configuration at the LCM prompt 1 Type mirror PORT The display could look like the following To check the status for ports configured for monitoring 1 Type status PORT ELS10 26 mirror 2 Port Mirroring Port 2 is mirroring Tx traffic ...

Страница 63: ...is enabled monitoring both transmit and receive packets No Monitoring is not enabled Port 1 Status ELS10 26 status 1 Type Speed 10B TPX 10Mbits Port Mirroring No Duplex Mode Half Duplex Bridging Transparent Bridging Enabled Disabled Enabled Rip listening Spanning Tree Forwarding Trunking State Off Pkts Transmitted 1693 Pkts Received 0 Carrier Losses 1693 Total Collisions 0 Excess Collisions 0 RX M...

Страница 64: ... Figure 3 3 shows an ELS10 26 that has been programmed to identify workgroups A and B Workgroup A uses ports 3 through 5 13 and 16 and workgroup B uses ports 7 11 16 and 24 Port 16 connects a segment that contains both workgroup A and workgroup B hosts Figure 3 3 Defining Virtual Workgroups ELS10 26TX STATUS PORT STATUS MODE 10BASE T 100BASE TX FEPIM 2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X MON...

Страница 65: ...isplay Name b Ports 7 11 16 24 Info all Port 16 has been assigned to a segment that includes ports that belong to workgroup A and workgroup B Port 13 connects workgroup A to the router and port 24 connects workgroup B to the router In the above example both displays show that all broadcasts will remain with the workgroup Use the LCM command workgroup to create modify and delete virtual workgroups ...

Страница 66: ...E 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 steps to assign a new community name or to change an existing community name You can then enter a community name to perform any SNMP sets The default password is public the first time you access the d...

Страница 67: ...ly configured for automatic multicast storm protection You define what level of multicasts the ELS10 26 will recognize as a multicast storm by specifying the number of multicast packets that can be transmitted within a given time period For example if you configure ELS10 26 to transmit onto Port 3 no more than five multicasts per 60 seconds any multicasts destined for Port 3 are discarded after th...

Страница 68: ...onfiguration options You may need to modify your configuration using an NMS This section provides several common MIB variables you may want to change Refer to the ELS10 26 MIB Reference Guide for a complete listing and description of MIB variables Each variable is first described in words and is then identified in MIB form for example lxadminGetPass lxadmin 3 The Display String line shows the rang...

Страница 69: ...dentifies the physical location of the ELS10 26 sysLocation system 6 DisplayString SIZE 0 255 3 16 2 Community Names The set community name variable from the Cabletron proprietary MIB must be initialized with the correct community name passwords All requests from any SNMP manager contain a community name field For set requests the community name must match the set password otherwise the request wi...

Страница 70: ...c learned addresses are automatically deleted from the ELS10 26 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 can change the aging parameter with the MIB variable dot1dTpAgingTime The ELS10 26 continually compares the actual age of each dynamic address against the age specified by the dot1dTpAgingTime param...

Страница 71: ...ate for your Local Console Manager LCM connection 4 1 ELS10 26 MANAGEMENT TOOLS LCM is a command line interface built into the ELS10 26 that enables you to monitor and manage the ELS10 26 through the out of band RS232C connection attached to any non intelligent terminal You can also use one of the following Cabletron Systems Network Management Stations NMSs or a standard SNMP based NMS to manage t...

Страница 72: ...ue 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 by placing its identifier and a set of management information appropriate to its class in the Management Information Database MIB Using the MIB variables you can obtain a detailed analysis of your network by combining statistics for ...

Страница 73: ...both network activity and utilization and in some cases indicate faulty equipment or cabling The number of non unicast multicast and broadcast and unicast packets received from the port The following statistics are available with SNMP The number of bytes in the received packets The number of bytes in the packets that were filtered The number of bytes in the packets that were forwarded The total nu...

Страница 74: ...ibed in the sections that follow 4 3 1 Displaying Status The status command displays the status of the ELS10 26 and automatically pages through the status of all of the Ethernet ports pausing at each screen of information At the LCM prompt 1 Type status LCM displays the following type of information Note You can also use the status command to display status for individual Ethernet ports by typing ...

Страница 75: ... CPU 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 24 0 0 0 0 Type CR to display port 1 status Port 1 Status ELS10 26 status 1 Type Speed 10B TPX 10Mbits Port Mirroring No Duplex Mode Half Duplex Bridging Transparent Bridging Enabled Disabled Enabled Rip listening Spanning Tree Forwarding Trunking State Off Pkts Transmitte...

Страница 76: ...C 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 but not yet assigned All LANs addresses reserved by 802 1d for network management Port number Age in seconds since a packet was last received from that address The display automatically pauses with each...

Страница 77: ...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 with stations containing the same make of Ethernet network interface cards At the LCM prompt 1 Type addresses display MAC ADDRESS NET MASK For example to see all addresses that begin with 02 04 06 you would enter addresses displa...

Страница 78: ...Frames To 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 1181 3421 15339 73 0 235 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 0 0 0 192 138 217 10 0 0 0 0 0 0 0 0 192 138 217 20 192 138 217 50 192 138 217 30 255 255 255 0 255 0 0 0 255 255 255 0 255 0 0 0 255 0 0 0 255 255 255 0 255 255 255 0 25...

Страница 79: ...ate 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 ELS10 26 Refer to Section 4 1 4 5 USING LCM TO MANAGE THE ELS10 26 The LCM commands that enable you to manage the ELS10 26 include Disable Enable Ipaddr Community Baud Reboot These LCM commands are described in the sections tha...

Страница 80: ...responds Once an Ethernet port is disabled it will be disabled until you enable it again Resetting the ELS10 26 will not enable a port that has been disabled 4 5 2 Enabling a Port When you enable an Ethernet port that has been disabled whatever bridging functions you had previously configured for that port are re enabled To enable a port or a range of ports at the LCM prompt 1 Type enable PORT RAN...

Страница 81: ...twork 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 the subnet mask is 0 0 0 0 the ELS10 26 automatically converts the displayed mask to the standard default based on the port s IP address class Class A address masks are 255 0 0 0 Class B address mask...

Страница 82: ... 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 enter anything LCM prompts you for the new community name Note When you change the subnet mask for a port you must also enter the IP address for that port Make sure you enter the IP address for the por...

Страница 83: ...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 LCM prompt 1 Type baud LCM responds Note Make sure that the baud rate you set matches the baud rate setting for the terminal you are using Usage baud 1200 2400 4800 9600 19200 Baud rate is 4800 ...

Страница 84: ... 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 ELS10 26 waits before rebooting At the LCM prompt 1 Type reboot time interval For example reboot 60 LCM responds Baud rate is 9600 Reboot pending in 59 seconds ...

Страница 85: ...10 26 performs an extensive 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 non recoverable failure The power up diagnostics test processors memory and other critical hardware components of the ELS10 26 All diagnostic software is stored in non volat...

Страница 86: ...mory test FLASH checksum test NVRAM checksum test Ethernet data loopback test 5 1 3 Software Checksum Comparison When the ELS10 26 reboots its operational software is verified by a checksum comparison before it is loaded If the software fails the checksum test due to an interrupted new software distribution procedure the ELS10 26 will automatically use its backup version of software A backup versi...

Страница 87: ...ER UP How the ELS10 26 responds to failures detected during power up depends on the seriousness of 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 element processor the ELS10 26 will halt execution and will not boot to operational mode 5 3 STATUS AN...

Страница 88: ...US LINK STATUS 26 27 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 13 14 15 16 23 24 21 22 17 18 19 20 LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS LINK STATUS 3 4 1 2 7 8 5 6 11 12 9 10 TX ACT FDX MON RX COL 100 USR PWR CPU RESET 25 MON COM Port Link LEDs Port Status LEDs Segment Status LEDs Segment Status Option Select Button lower row upper row Power and...

Страница 89: ...f Port operating at 10 Mbps On Indicates the port is copying to the monitor port On Indicates that errored packets were received Link Individual Ports On Indicates the link is good Off Indicates there is no link Status Individual Ports On Blinking Indicates you are monitoring the port for a selected segment status condition This LED always indicates one of the status modes Table 5 2 Description of...

Страница 90: ...up check each one of the following Make sure the power source is operational Make sure the power cord is securely connected If the ELS10 26 still does not power up contact Cabletron Systems Global Call Center Refer to Section 1 2 for more information 5 5 1 Connectivity Problems Check for LED abnormalities Check port status using LCM Check for loose port connections Check to see if the number of ca...

Страница 91: ... the ELS10 26 diagnostic codes and call your authorized Cabletron Systems representative 5 5 3 ELS10 26 Does Not Respond to NMS Check the port status using LCM Check to see if the Spanning Tree topology is stable using LCM Check that a pathway to the ELS10 26 exists Verify the ELS10 26 s IP address using LCM ...

Страница 92: ...5 8 ELS10 26 Diagnostics and Troubleshooting ...

Страница 93: ...1 kg Installation options Tabletop or rack mount Electrical Input voltage Auto ranging from 100 120 200 240 Vac Frequency 50 60 Hz AC power consumption 80 watts Connector Ports 25 RJ45 Ethernet ports MDI X 1 RJ45 Fast Ethernet port 1 RJ45 Monitor Port MDI X 1 RS232C port for Local Console Manager LCM 1 slot for optional Fast Ethernet Port Interface Module ...

Страница 94: ... to 90 non condensing Diagnostic LEDs Individual port link status Individual port segment status Segment status specifying Transmit activity 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 CSMA CD 10BASE T Ethernet ...

Страница 95: ...ny SNMP based network management system Regulatory Compliance Safety UL 1950 CSA C22 2 No 950 EN 60950 and IEC 950 73 23 EEC Electromagnetic Compatibility FCC Part 15 EN 55022 EN50082 1 89 336 EEC CSA C108 8 VCCI V 3 AS NZS 3548 EN 50082 1 A 2 SERIAL CABLE PIN ASSIGNMENTS For a PC running a Windows terminal connected to the RS232C Network Management Port on the front panel of the ELS10 26 the foll...

Страница 96: ...ght be red and the other wire red with white stripes Connectors Refer 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 Table A 1 DB25 Pin Assignments ELS10 26 RJ45 female DB25 pin female Pin 1 Tx Pin 3 Pin 4 Rx Pin 2 Pin 5 GND Pin 7 ELS10 26 RJ45 female DB9 pin femal...

Страница 97: ...are used to represent the polarity of the two wires that make up each wire pair A 4 STRAIGHT THROUGH WIRING If the twisted pair link segment is to join two ports on a switch and only one of the ports has an internal crossover the two pairs of wires must be straight through as shown in Table A 4 Table A 3 10BASE T Pin Assignments Pin Assignmenta 1 Rx 2 Rx 3 Tx 6 Tx Table A 4 Straight Through RJ45 P...

Страница 98: ... e PCs or other stations on the network there can be Up to five segments in series Up to four repeaters or multi port hubs Up to three populated segments that is segments attached to two or more PCs The remaining two segments are unpopulated these are known as inter repeater links or IRLs This distinction between populated and unpopulated segments is significant for coax networks only Table A 5 Cr...

Страница 99: ...the cable pairs If the switch is on the X side the pairs are internally crossed over If the switch is on the side the pairs are not internally crossed over Figure A 2 shows the pinouts for the FEPIM 100TX in both positions Figure A 2 FE 100TX Pinouts FE 100FX The FE 100FX shown in Figure A 3 supports multimode fiber optic cabling The FE 100FX is equipped with an SC style port Specifications for th...

Страница 100: ...tly 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 the values listed above Table A 6 Transmitter Power Cable Type Worst Case Budget Typical Budget 50 125 µm fiber 6 0 dB 9 0 dB 62 5 125 µm fiber 9 0 dB 12 0 dB 100 140 µm fiber 15 0 dB 18 0 dB FE 100...

Страница 101: ...ANSI 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 used to perform dynamic address translation between MAC addresses and internet addresses Binds IP addresses to specific MAC addresses attenuation The amount of power or light lost as power travels thro...

Страница 102: ...he 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 intelligent protocol independent device used to connect similar or dissimilar LANs bursty Adjective used to describe sporadic heavy volumes of network traffic e g bursty traffic bypass Optical or elect...

Страница 103: ...r services 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 transmitted per second downstream Refers to the relative position of a station in a network to another station in the same network A station is downstream from another station if it receives data after th...

Страница 104: ... sublayer extended LAN A collection of LANs interconnected by protocol independent bridges or switches filtering rate A measure in packets per second of the ELS10 26 s efficiency in examining each frame comparing it with an address table and then deciding whether to discard the frame or forward it forwarding rate The rate in packets per second at which the ELS10 26 can receive a stream of packets ...

Страница 105: ...yer 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 network from startup state to operational state intelligent bridge switch A bridge switch that is able to identify source and destination addresses internet A large communications infrastructure composed ...

Страница 106: ...ond 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 or campus link loss budget Each connection link in an optical system results in a certain amount of signal strength loss Link loss budget refers to the process of calculating link loss for the entire ...

Страница 107: ...ation base A collection of objects unique to a specific device that can be accessed via a network management protocol The ELS10 26 has its own MIB multicast Packets destined for more than one address multicast broadcast storm Excessive multicast packet traffic typically generated by a faulty device Multicast storms can cause severe network performance problems network Interconnected computer syste...

Страница 108: ...hat 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 model Defines and handles the electrical and physical connections between systems power budget The difference between transmit power and receiver sensitivity including any safety margins PPP point t...

Страница 109: ...etworks 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 system and a network device source address filtering A switch or bridge function that forwards or rejects data depending on the data s source address static address Addresses manually entered into the...

Страница 110: ...ransmission 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 network translating bridge A bridge that can pass data between LANs that use different protocols translation Modification of data packets from one type of network so they can be used on a different type ...

Страница 111: ...sition 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 communication network that spans a large geographic area ...

Страница 112: ...B 12 Glossary ...

Страница 113: ...tocol Data Unit 3 5 Bridge Address Table defined 1 9 Bridge Protocol Data Unit BPDU 3 5 bridging functions disabling 3 6 displaying 3 6 enabling 3 6 bridging technologies A 2 C certification A 3 changing subnet mask 3 5 4 12 checksum comparison test 5 2 community name assigning 3 18 4 12 connecting ASCII terminal 2 9 LCM 2 9 Connecting to the network 2 9 connectivity problems troubleshooting 5 6 c...

Страница 114: ...gnostics 5 1 sample applications 1 11 1 12 specifications A 1 statistics 4 1 FastNET 10 diagnostics 5 1 FE 100FX transmitter power A 8 Fiber connection SC to SC 2 13 I IP addresses assigning 3 3 deleting 3 4 displaying 3 4 4 8 4 11 IP subnet mask changing 3 5 4 12 L LCM connecting 2 9 description of 1 18 4 1 LCM command syntax 1 19 LCM commands addresses display 4 6 4 10 bridge 3 5 community 3 18 ...

Страница 115: ...gment Status LED 2 3 5 5 Select button 2 4 5 5 serial cable DB 9 female A 3 DB 9 male A 4 pin assignments A 3 set password defined 3 22 setting baud rate 4 13 SNMP statistics 4 2 Spanning Tree algorithm 1 9 specifications electrical A 1 physical A 1 statistics Ethernet port 4 3 gathering 4 2 overview 4 2 system 4 2 status displaying FastNET 10 4 4 straight through wiring A 5 subnet mask IP changin...

Страница 116: ...Index I 4 W wiring crossover A 6 straight through A 5 ...

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