Cabletron Systems EMM-E6 Ethernet manual

EMM-E6 USER’S GUIDE EMM-E6 ETHERNET EPIM-A PWR STBY RCV XMT CLN D C B A CPU RESET SN E P I M 1 E P I M 2 C O M 1 C O M 2 F E EPIM-A PWR LNK YEL STB DSR LNK T1/FT1 TST RED SYN CTS TST SYNC BRIM-WT1 BRIM-A100 STY LNK XMT RCV BRIM-F6 CABLETRON SYSTEMS , P .O . Bo x 5005, Rochester , NH 83866-5005 CH1Book Page 1 Wednesday, March 20, 1996 7:48 AM[...]

EMM-E6 User’s Guide i NO TICE Cabletron Systems reserves the right to mak e changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes ha ve been made. The hardware, firmware, or softw are described in this manual[...]

NOTICE ii EMM-E6 User’s Guide FCC NO TICE This de vice complies with Part 15 of the FCC rules. Operation is subject to the follo wing two conditions: (1) this de vice may not cause harmful interference, and (2) this de vice must accept any interference recei ved, including interference that may cause undesired operation. NO TE: This equipment has[...]

NOTICE EMM-E6 User’s Guide iii VCCI NO TICE This equipment is in the Class I Category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the V oluntary Control Council for Interference by Information T echnology Equipment (VCCI) aimed at pre venting radio interference in commercial and/or[...]

NOTICE iv EMM-E6 User’s Guide CABLETRON SOFTW ARE PROGRAM LICENSE 1. LICENSE. Y ou ha ve the right to use only the one (1) cop y of the Program provided in this package subject to the terms and conditions of this License Agreement. Y ou may not cop y , reproduce or transmit any part of the Program except as permitted by the Cop yright Act of the [...]

NOTICE EMM-E6 User’s Guide v EXCLUSION OF W ARRANTY AND DISCLAIMER OF LIABILITY 1. EXCLUSION OF W ARRANTY . Except as may be specifically provided by Cabletron in writing, Cabletron mak es no warranty , expressed or implied, concerning the Program (including Its documentation and media). CABLETR ON DISCLAIMS ALL W ARRANTIES, O THER THAN THOSE SU[...]

NOTICE vi EMM-E6 User’s Guide UNITED ST A TES GO VERNMENT RESTRICTED RIGHTS The enclosed product (a) was de veloped solely at pri v ate expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its[...]

EMM-E6 User’s Guide vii T ABLE OF CONTENTS CHAPTER 1 INTRODUCTION 1.1 USING THIS MANUAL ........................................................ 1-1 1.2 EMM-E6 FEATURES .......................................................... 1-4 1.3 THE MMAC WITH FLEXIBLE NETWORK BUS ................. 1-10 1.4 ETHERNET CHANNELS A, B, C, D, E, and F ...........[...]

TABLE OF CONTENTS viii EMME-E6 User’s Guide CHAPTER 2 REQUIREMENTS / CONFIGURATIONS 2.1 NETWORK REQUIREMENTS ........................................... 2-1 2.1.1 10BASE-T Twisted Pair Network ........................... 2-2 2.1.2 Multimode Fiber Optic Network ............................. 2-4 2.1.3 Single Mode Fiber Optic Network ...............[...]

TABLE OF CONTENTS EMM-E6 User’s Guide ix CHAPTER 4 A TT ACHING A CONSOLE 4.1 CONFIGURING YOUR TERMINAL .................................... 4-1 4.2 CONFIGURING A CONSOLE CABLE ................................ 4-3 4.2.1 Connecting to a VT Series Terminal ...................... 4-4 4.2.2 Connecting to an IBM PC or Compatible ............... 4-5 4.3[...]

TABLE OF CONTENTS x EMME-E6 User’s Guide CHAPTER 10 ROUTER SETUP SCREEN CHAPTER 11 DEVICE ST A TISTICS SCREEN 11.1 DEVICE STATISTICS ......................................................... 11-2 11.2 DEVICE STATISTICS SCREEN COMMANDS .................. 11-3 11.2.1 Selecting an Update Frequency ............................ 11-4 11.2.2 Selecting a[...]

TABLE OF CONTENTS EMM-E6 User’s Guide xi APPENDIX A EMM-E6 SPECIFICATIONS A.1 BRIDGING FUNCTIONALITY ............................................. A-1 A.2 REPEATER FUNCTIONALITY ........................................... A-2 A.3 COM 1 PORT ...................................................................... A-3 A.4 COM 2 PORT .................[...]

EMM-E6 User’s Guide 1-1 CHAPTER 1 INTR ODUCTION W elcome to the Cabletron Systems EMM-E6 User’s Guide . This manual explains ho w to set-up, configure, and locally manage the Cabletron Systems 6-port Ethernet Bridge/Management Module (EMM-E6). 1.1 USING THIS MANUAL Read through this manual completely to familiarize yourself with its content an[...]

CHAPTER 1: INTRODUCTION 1-2 EMM-E6 User’s Guide Chapter 5, Accessing Local Management , describes ho w to access LM after you attach the management console. Chapter 6, Community Names , explains ho w to use the Community Name T able screen to set both local and remote access le vels. Chapter 7, Configuration Screen , describes ho w to assign IP [...]

USING THIS MANUAL EMM-E6 User’s Guide 1-3 Appendix A, EMM-E6 Specifications , details the properties of the EMM-E6 and currently av ailable EPIM modules. Appendix B, OID Descriptions , supplies information detailing the Object Identifiers that may be accessed for managing the EMM-E6. Follo wing the Appendices is a brief Glossary of T erms which[...]

CHAPTER 1: INTRODUCTION 1-4 EMM-E6 User’s Guide 1.2 EMM-E6 FEATURES • i960 Processor Design • IEEE 802.1d Compliant • A vailable Routing Services • Special Filtering Database • Six port Ethernet Bridge • Integrated BRIM technology • User Configurable EPIMs • Expandable Flash EEPR OM Memory and Runtime do wnload • Expandable Loc[...]

EMM-E6 FEATURES EMM-E6 User’s Guide 1-5 i960 Processor Design The EMM-E6 is equipped with an adv anced Intel i960 microprocessor that provides a scalable RISC-based architecture. IEEE 802.1d Compliant The EMM-E6 is a fully IEEE 802.1d compliant Ethernet bridge. The EMM-E6 supports both the IEEE and DEC Spanning T ree algorithms, allo wing it to o[...]

CHAPTER 1: INTRODUCTION 1-6 EMM-E6 User’s Guide • BRIM-E6 : Ethernet module with selectable EPIM connection • CRBRIM-W/E-IP : Cisco Router Ethernet/W ide Area module for TCP/IP traf fic. • CRBRIM-W/E-DESKTOP : Cisco Router Ethernet/W ide Area module for IP , IPX, DECNet, and AppleT alk traffic. • CRBRIM-W/E-ENT : Cisco Router Ethernet/W[...]

EMM-E6 FEATURES EMM-E6 User’s Guide 1-7 • BRIM-A6 : 100/155 Mbps A TM Station connection with configurable connector . The BRIM-A6 uses A TM Port Interface Modules (APIMs). APIMs allow a media flexibility for A TM connections like that provided by FPIMs (described abov e). The follo wing APIM types are currently av ailable: • APIM-11 : 100 [...]

CHAPTER 1: INTRODUCTION 1-8 EMM-E6 User’s Guide Flash memory allo ws for the downloading of f irmware to the module without requiring that the module be shut do wn. The firmware do wnload may be performed at any time during the operation of the module, and the ne w firmware image will be utilized at the next reset of the module. Expandable LDRA[...]

EMM-E6 FEATURES EMM-E6 User’s Guide 1-9 DLM Support The EMM-E6 allo ws the option of using Cabletron Distributed LAN Monitor (DLM) software to locally poll and monitor an y Simple Network Management Protocol (SNMP) or Internet Protocol (IP) de vice. The EMM-E6 itself tallies the polling results and can be configured to contact a management stati[...]

CHAPTER 1: INTRODUCTION 1-10 EMM-E6 User’s Guide 1.3 THE MMAC WITH FLEXIBLE NETWORK BUS The Multi Media Access Center with Flexible Network Bus (MMA C-FNB) provides the operational platform for the EMM-E6. The MMA C-FNB (backplane) provides two physically separate buses - Channel A (operating ov er the MMA C Power and Management b us), and Channe[...]

THE MMAC WITH FLEXIBLE NETWORK BUS EMM-E6 User’s Guide 1-11 Table 1-1. MMACs with Shunting Capabilities MMA C Chassis Part # MMA C-3FNB FC 000000000 or abov e MMA C-5FNB CC 000000000 or abov e MMA C-8FNB CG 000000000 or abov e MMA C-M8FNB DK 000000000 or abov e MMA C-M5FNB all MMA C-M3FNB all If your MMAC does not have a shunting backplane, upgra[...]

CHAPTER 1: INTRODUCTION 1-12 EMM-E6 User’s Guide 1.4 ETHERNET CHANNELS A, B, C, D, E, and F The EMM-E6 manages all Ethernet bridging traf fic within its resident hub . This means that the EMM-E6 controls up to six of the Ethernet bridging channels - A, B, C, D, E, and, in the future, F . These channels access the same EMM-E6 shared memory , so b[...]

ETHERNET CHANNELS A, B, C, D, E, and F EMM-E6 User’s Guide 1-13 1.4.2 Ethernet Channels B and C The Cabletron Systems MultiChannel family of MIMs includes the Repeater Interface Controller Media Interface Module (RIC MIM), an IEEE 802.3 compliant multi-port repeater . Y ou can configure these modules to operate on either the Ethernet Channels B [...]

CHAPTER 1: INTRODUCTION 1-14 EMM-E6 User’s Guide When frames hav e destination addresses for a dif ferent bus: • the sending RIC MIM transmits the frames ov er its designated Ethernet bus; • the other RIC MIMs on this bus recei ve the frames, and repeat them; • the EMM-E6, after determining the source and destination, forwards the traf fic[...]

ETHERNET CHANNELS A, B, C, D, E, and F EMM-E6 User’s Guide 1-15 FDDI and T oken Ring Modules - The EMM-E6 recognizes the follo wing FDDI and T oken Ring modules, b ut the EMM-E6 management does not provide control or statistics. • CRM-3T • SNA CMIM • TRMIM-32A • TRMIM-34A • TRRMIM-F2T • TRRMIM-F3T W ith TRMMIM version 2.02 or greater [...]

CHAPTER 1: INTRODUCTION 1-16 EMM-E6 User’s Guide Only one EPIM operates at any gi ven time. Howe ver , using both EPIM slots in a redundancy configuration ensures that if the primary bridging port fails, or the connecting cable se gment becomes inoperable, the backup port automatically takes o v er the bridging operation. This is referred t o as[...]

BRIDGES EMM-E6 User’s Guide 1-17 1.6 BRIDGES An Ethernet bridge is a de vice that allows the e xpansion of a network beyond the limitations of the IEEE 802.3 specified limits for repeated Ethernet networks. If an Ethernet network has a repeater hop of four repeaters or a round trip propagation delay near the 51.2 µ s maximum, a bridge can be us[...]

CHAPTER 1: INTRODUCTION 1-18 EMM-E6 User’s Guide The bridge is considered a node on the network and performs store and forward functions for packets on each netw ork. This contrasts with a repeater which repeats the signal bit by bit from one side of the network to the other . The bridge actually reads each packet, checks the pack et for accuracy[...]

BRIDGES EMM-E6 User’s Guide 1-19 1.6.2 Spanning T ree Algorithm The Spanning T ree Algorithm (ST A) is used by bridges to detect data loops (duplicate data paths). The bridges will then automatically break the loop and use the no w open path as a backup in case the primary path f ails. When a bridge is po wered up, it goes through a series of sel[...]

CHAPTER 1: INTRODUCTION 1-20 EMM-E6 User’s Guide 1.7 LOCAL MANAGEMENT FEATURES Local Management for the EMM-E6 provides tools that allo w you to manage the de vice and its attached segments. Through Local Management you can: • Assign an IP address and subnet mask to the EMM-E6 bridge via the Configuration Screen menu. • Select a default gate[...]

COMMUNITY NAMES EMM-E6 User’s Guide 1-21 1.8 COMMUNITY NAMES When using Local or Remote Management tools to access the EMM-E6 it is important that the Network Manager has the ability to maintain network security . Community Names provide some netw ork security by acting as passwords into the de vice and the software running it. The Network Manage[...]

CHAPTER 1: INTRODUCTION 1-22 EMM-E6 User’s Guide 1.9.1 MIBs The Management Information Bases (MIBs) are a database resident on the EMM-E6. Objects in the information base are uniquely identified by administrati vely assigned identifiers (called object identifiers or OIDs), and can be vie wed, retriev ed, or changed using an SNMP packet exchang[...]

REVIEW OF ADDRESSING EMM-E6 User’s Guide 1-23 As MA C addresses are often used to perform management and control functions for networking hardware, it is important to be able to identify a MA C address when it is requested or returned by network management. Since most MA C addresses are set at manufacture and cannot be altered by users, this manu[...]

CHAPTER 1: INTRODUCTION 1-24 EMM-E6 User’s Guide Table 1-2. Class A Table 1-3. Class B Table 1-4. Class C Range of Network IDs: 1 - 126 . host. host. host [1 octet f or the Network ID (127 reser v ed)] Binar y translation: (of first octet) 0 000001 - 01111111 [first bit is alwa ys 0] Range f or the Host ID: net . 1 - 254. 1 - 254. 1 - 254 [3 oc[...]

REVIEW OF ADDRESSING EMM-E6 User’s Guide 1-25 1.10.3 Identifying IP Address Classes In the e vent that you ha ve an existing IP address and need to quickly determine what fields are av ailable for Host IP address configuration, make that determination based on the binary v alue of the first DDN field. T ables 1-1 to 1-3 show that dif ferent a[...]

CHAPTER 1: INTRODUCTION 1-26 EMM-E6 User’s Guide Subnet addresses, when used with routing, allo w discrimination between de vices and groups of devices based on IP addresses. Netw orks of dif ferent subnets, e ven those on the same physical network segment, may be isolated, from a functional standpoint, from one another through the implementation[...]

REVIEW OF ADDRESSING EMM-E6 User’s Guide 1-27 The binary 1’ s in the mask “mask-out” the Network ID and the 0’ s show where the Host ID is located. When using part of the Host ID as a subnet address, define a Subnet Mask that will mask-out the bits of the Host ID that are being used as a subnet address. The calculations for the mask must[...]

CHAPTER 1: INTRODUCTION 1-28 EMM-E6 User’s Guide The example in Figure 1-3 masks out the three high order bits of the only octet av ailable for modification, the last octet. This provides for up to six subnets and up to 30 Host IDs within each subnet. Modifying the default mask for a Class B address (255.255.0.0) to mask out the third octet for [...]

REVIEW OF ADDRESSING EMM-E6 User’s Guide 1-29 Table 1-7. Examples of Class B Subnet Masks Decimal Mask Binary Equivalent Available Subnet Addresses Host IDs Per Subnet 192. 0 11000000 00000000 64 and 192 16,382 224. 0 11100000 00000000 32, 64, 96, 128, 192, 224 8,190 240. 0 11110000 00000000 16 - 240 increments of 16 4,094 248. 0 11111000 0000000[...]

CHAPTER 1: INTRODUCTION 1-30 EMM-E6 User’s Guide 1.10.6 Operation of the Subnet Mask The Subnet Mask defines ho w your EMM-E6 treats SNMP T rap IP destination addresses in its T rap table (see Chapter 7, T rap T able Screen , for additional information on traps). When using the Subnet Mask, the EMM-E6 logically determines one of two possible loc[...]

REVIEW OF ADDRESSING EMM-E6 User’s Guide 1-31 1.10.8 Addressing Example A network manager , planning for the configuration of a network of 60 hosts, desires to implement subnets to create logical di visions between dif ferent groups of workstations and de vices. The Internet Assigned Numbers Authority has supplied the company with a Class C Netw[...]

CHAPTER 1: INTRODUCTION 1-32 EMM-E6 User’s Guide For an y SNMP T rap-generating netw ork de vices not residing on the same subnet as the network management station, the default Subnet Mask utilized on that de vice must be altered to match the subnet scheme. In the abov e example, the default Subnet Mask is modified from 255. 255. 255. 0 to 255. [...]

LANVIEW LEDs AND RESET SWITCH EMM-E6 User’s Guide 1-33 1.11 LANVIEW LEDs AND RESET SWITCH The EMM-E6 incorporates the Cabletron Systems LANVIEW Status Monitoring and Diagnostics System. LANVIEW LEDs can help diagnose any problems, such as a po wer failure or a cable fault. The module includes the follo wing LANVIEW LEDs: • A CPU (Central Proces[...]

CHAPTER 1: INTRODUCTION 1-34 EMM-E6 User’s Guide LANVIEW SECURE modules also provide a “Full security” conf iguration, under which broadcast and multicast packets contain modified data fields such as those used in eav esdrop pre v ention (described abo v e). Ports set to Full security mode will not see or respond to these types of packets. [...]

GETTING HELP EMM-E6 User’s Guide 1-35 1.13 GETTING HELP If you need additional support related to installation, configuration, or management of the EMM-E6, or if you hav e an y questions, comments, or suggestions concerning this manual, contact Cabletron Systems T echnical Support: By phone .......................... (603) 332-9400 Monday-Friday[...]

EMM-E6 User’s Guide 2-1 CHAPTER 2 REQUIREMENTS / CONFIGURA TIONS This chapter contains general networking guidelines. Before attempting to install the EMM-E6 or any additional EPIMs or BRIMs, re view the requirements and specifications outlined in this chapter . 2.1 NETWORK REQUIREMENTS T ake care in planning and preparing the cabling and connec[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-2 EMM-E6 User’s Guide 2.1.1 10B ASE-T T wisted Pair Netw ork When connecting a 10B ASE-T segment at an y of the 10B ASE-T hub ports or a 10B ASE-T Ethernet Port Interface Module (EPIM-T), ensure that the network meets the follo wing requirements: • Length - The IEEE 802.3 10B ASE-T standard requires th[...]

NETWORK REQUIREMENTS EMM-E6 User’s Guide 2-3 • Jitter - Intersymbol interference and reflections can cause jitter in the bit cell timing, resulting in data errors. 10B ASE-T links must not generate more than 5.0 ns of jitter . Make sure your cable meets 10B ASE-T link impedance requirements to rule out jitter as a concern. • Delay - The maxi[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-4 EMM-E6 User’s Guide 2.1.2 Multimode Fiber Optic Network When connecting a multimode fiber optic link segment to the hub (via EPIM-F1/F2), ensure the network meets the follo wing requirements: • Cable T ype - Use the EPIM-F1 and EPIM-F2 for the following multimode fiber optic media: - 50/125 µ m fi[...]

NETWORK REQUIREMENTS EMM-E6 User’s Guide 2-5 2.1.3 Single Mode Fiber Optic Network When connecting a single mode fiber optic link segment to the hub (via EPIM-F3), ensure the network meets the follo wing requirements: • Cable T ype - Fiber optic link segments should consist of 8/125 to 12/125 µ m single mode fiber optic cabling. Y ou can als[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-6 EMM-E6 User’s Guide 2.1.4 Thin-net Network When connecting a thin-net (coaxial) segment to your hub (via an EPIM-C), ensure your network meets the follo wing requirements: • Cable T ype - Use only 50 ohm RG-58A/U type coaxial cable for thin-net cable segments. • Length - The thin-net se gment must [...]

REPEATER MEDIA INTERFACE MODULES EMM-E6 User’s Guide 2-7 2.3 REPEATER MEDIA INTERFACE MODULES The EMM-E6 communicates with the Repeater MIMs ov er Ethernet Channels B and C of the MMA C-FNB. The following repeater MIMs are currently av ailable: • CXRMIM : coaxial repeater MIM; twelve 10B ASE-2 coaxial connectors; one EPIM. • FORMIM-22 : fibe[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-8 EMM-E6 User’s Guide 2.4 PORT ASSIGNMENT MODULES • TPXMIM-20/TPXMIM-22 : twisted pair port and bank assignment repeater MIM; RJ45 connectors (TPXMIM-20 has nine, TPXMIM- 22 has twenty-one); one EPIM. • TPXMIM-32/TPXMIM-36 : twisted pair port and bank assignment repeater MIM; RJ71 connectors (TPXMIM-[...]

SAMPLE NETWORK CONFIGURATIONS EMM-E6 User’s Guide 2-9 2.5 SAMPLE NETWORK CONFIGURATIONS This section provides you with se veral e xamples for configuring networks with the EMM-E6. These e xamples illustrate the flexibility and adv antages to using the EMM-E6 and RIC MIM technology: 2.5.1 Three networks with a single MMAC-FNB 2.5.2 The EMM-E6 as[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-10 EMM-E6 User’s Guide 2.5.1 Three Networks With a Single MMA C-FNB One of the basic applications of the EMM-E6 is for configuring three separate networks within one MMA C. This provides you with the adv antages of having three separate networks in one wiring closet, with full bridging and SNMP manageme[...]

SAMPLE NETWORK CONFIGURATIONS EMM-E6 User’s Guide 2-11 2.5.3 Adding User s to a Separate Segment The example in Figure 2-3 compares tw o methods of connecting 48 additional users to a network. Figure 2-3. Adding New Users T o place additional users on a new network with an EMM-E6, you only need to add a fe w additional MIMs to the MMA C-FNB. Sing[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-12 EMM-E6 User’s Guide 2.5.4 A Fault T olerant Wiring Hierarch y The example in Figure 2-4 illustrates a f ault tolerant wiring hierarchy . Figure 2-4. Configuring a Fault Tolerant Wiring Scheme Closets 1, 2, and 3 each contain an MMA C-FNB with an EMM-E6, MIMs, and RIC MIMs operating on Ethernet channel[...]

SAMPLE NETWORK CONFIGURATIONS EMM-E6 User’s Guide 2-13 The Star Hub, which is an MMA C-FNB that uses a configuration similar to the closet hubs, is the central repeater interconnect for the closets, but does not constitute a single point of failure. The EMM-E6 in each MMA C-FNB utilizes the 802.1d Spanning T ree Algorithm. By configuring the Ro[...]

CHAPTER 2: REQUIREMENTS / CONFIGURATIONS 2-14 EMM-E6 User’s Guide 2.5.5 The EMM-E6 and BRIMs The example in Figure 2-5 illustrates just one possible EMM-E6 and BRIM configuration. The EMM-E6/BRIM combination pro vides various connection possibilities, depending on the BRIM(s) you use. Refer to indi vidual BRIM manuals and/or Cabletron Systems’[...]

EMM-E6 User’s Guide 3-1 CHAPTER 3 INST ALLA TION This chapter contains instructions for: • unpacking and in ventorying the contents of the EMM-E6 carton • locating, identifying and setting the EMM-E6 mode switches • adding/replacing optional modules (i.e., Single In-line Memory Modules and Ethernet Port Interface Modules) • identifying BR[...]

CHAPTER 3: INSTALLATION 3-2 EMM-E6 User’s Guide 3.1 UNPACKING THE EMM-E6 Unpack the EMM-E6 as follo ws: 1. Remov e the shipping material cov ering the EMM-E6. 2. V erify the contents of the packing carton. The carton is shipped with the follo wing items: 3. Carefully remov e the module from the shipping box. Leav e the module in its non-conducti [...]

SETTING MODE SWITCHES EMM-E6 User’s Guide 3-3 3.2 SETTING MODE SWITCHES The bank of dip switches located at the top of the EMM-E6 (Figure 3-1) are set to their default positions prior to shipping. Check these switches to ensure that they are in the correct position for normal EMM-E6 operation. Figure 3-1. EMM-E6 Mode Switches ON 1 2 3 4 5 6 7 8 O[...]

CHAPTER 3: INSTALLATION 3-4 EMM-E6 User’s Guide Switch definitions are as follo ws: • Switch 1 - Cabletron Systems use only . • Switch 2 - Cabletron Systems use only . • Switch 3 - F or manufacturing use only . Keep in OFF position. • Switch 4 - MIMREV (Management Interf ace Module Revision). This switch remains in the OFF position for n[...]

SETTING MODE SWITCHES EMM-E6 User’s Guide 3-5 After changing the state of Switch 6 and repo wering the de vice, the EMM-E6 will request a ne w image until it either receiv es the image, or you reset the EMM-E6 again by: - using the reset button on the front panel - removing the EMM-E6 from the chassis backplane and plugging it back in - cycling t[...]

CHAPTER 3: INSTALLATION 3-6 EMM-E6 User’s Guide 3.3 SIMM UPGRADES The EMM-E6 allo ws memory upgrades for SDRAM, LDRAM, and FLASH EEPR OM. This section explains ho w to locate and add or replace a Single In-line Memory Module (SIMM) for any of these memory types. 3.3.1 Locating SIMMs Each memory type has a specific SIMM slot location on the EMM-E[...]

SIMM UPGRADES EMM-E6 User’s Guide 3-7 Figure 3-2. SIMM Slot Locations Local Dynamic Random Access Memory (LDRAM) SIMM Slot FLASH Memory SIMM Slot Shared Dynamic Random Access Memory (SDRAM) SIMM Slot EMM-E6 Direction of Install CH1Book Page 7 Wednesday, March 20, 1996 7:48 AM[...]

CHAPTER 3: INSTALLATION 3-8 EMM-E6 User’s Guide 3.3.2 Installing SIMMs Installing a SIMM is a simple two step process. After finding the proper SIMM slot location, refer to Figure 3-3 and the follo wing instructions to install your SIMM. Figure 3-3. Installing a SIMM T o install a SIMM: 1. Insert the SIMM between the connector teeth in the SIMM [...]

ADDING/REPLACING EPIMs EMM-E6 User’s Guide 3-9 3.4 ADDING/REPLACING EPIMs This section contains procedures on ho w to add/replace an Ethernet Port Interface Module (EPIM) to upgrade or change the capabilities of your hub . After installing your new EPIM, refer to appropriate EPIM sections in this chapter to verify proper operation. T o install an[...]

CHAPTER 3: INSTALLATION 3-10 EMM-E6 User’s Guide 3.5 LOCATING BRIMs This section points out Bridge Router Interface Module (BRIM) connector locations on your EMM-E6 board. Refer to your BRIM Guide for installation procedures and additional information. The follo wing diagram (Figure 3-5) sho ws BRIM connector locations for the EMM-E6: Figure 3-5.[...]

PRE-INSTALLATION TEST EMM-E6 User’s Guide 3-11 3.6 PRE-INSTALLATION TEST Before installing the EMM-E6 in a li ve network, test the module in a controlled situation to ensure that it is repeating and bridging packets. Y ou can perform this test with two workstations (see Figure 3-6), using an MMA C-FNB, or MMA C-MFNB, installed with an EMM-E6 and [...]

CHAPTER 3: INSTALLATION 3-12 EMM-E6 User’s Guide 6. Send packets between the two workstations to verify the proper operation of the EMM-E6. If a failure occurs, refer to Chapter 14, T roubleshooting . Figure 3-6. Pre-Installation Test Note: If using UNIX workstations, a “ping” test verifies the EMM-E6 is operating properly. NOTE EMM-E6 MMAC-M[...]

INSTALLING THE EMM-E6 EMM-E6 User’s Guide 3-13 3.7 INSTALLING THE EMM-E6 Installing the EMM-E6 into any MMA C hub is an easy operation and requires no special skills or tools. Ho we ver , when you install your de vice, keep the follo wing in mind: • Y ou must install the EMM-E6 in slots 1 and 2 (furthest slots to the right) of the MMA C chassis[...]

CHAPTER 3: INSTALLATION 3-14 EMM-E6 User’s Guide 4. Firmly press the module connections into the backplane. Do not try to force the module into place or use the knurled knobs to draw the module into the backplane. Forcing a misaligned module into place can damage the EMM-E6 or the MMA C backplane. Figure 3-7. Installing the EMM-E6 5. Secure the m[...]

INSTALLING THE EMM-E6 EMM-E6 User’s Guide 3-15 7. Observe the status of the LANVIEW LEDs on the EMM-E6. When the CPU LED is flashing, the STBY (standby) LEDs indicate the module’ s boot state. During this period (up to 5 minutes), the LEDs cycle through a series of internal diagnostics. (See Figure 3-8) Figure 3-8. EMM-E6 LANVIEW LEDs 8. After[...]

CHAPTER 3: INSTALLATION 3-16 EMM-E6 User’s Guide 3.8 INSTALLATION CHECK-OUT After connecting to the network, v erify that packets can pass ov er the network se gments via the EMM-E6. Again, you can use two workstations set up as file server and client. K eep the server workstation stationary in the wiring closet with the EMM-E6, and use the clie[...]

INSTALLATION CHECK-OUT EMM-E6 User’s Guide 3-17 Figure 3-9. Installation Checkout TPT File Server Workstation MMAC-M3FNB with EMM-E6 and TPRMIM Office Locations Client Workstation EMM-E6 MMAC-M3FNB t TPRMIM-33 CH1Book Page 17 Wednesday, March 20, 1996 7:48 AM[...]

CHAPTER 3: INSTALLATION 3-18 EMM-E6 User’s Guide 3.9 CONNECTING TO THE NETWORK This section gi ves procedures for connecting the EMM-E6 to the netw ork using the v arious EPIMs av ailable. When the EMM-E6 is first powered up, the EPIM 1 port acts as the bridge port and the EPIM 2 port is OFF . Once you hav e successfully po wered up your EMM-E6,[...]

CONNECTING TO THE NETWORK EMM-E6 User’s Guide 3-19 3.9.1 Connecting a T wisted P air Segment to an EPIM-T Before connecting a segment to the EPIM-T , check each end of the segment to determine wire cross-o ver . If the wires do not cross ov er , use the switch on the EPIM-T to internally cross ov er the RJ45 port. Refer to Figure 3-10 to properly[...]

CHAPTER 3: INSTALLATION 3-20 EMM-E6 User’s Guide 2. Check that the LNK LED for the port is on. If the LED is not on, perform each of the follo wing steps until it is: a. Check that the 10B ASE-T de vice at the other end of the twisted pair segment is po wered. b. Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts [...]

CONNECTING TO THE NETWORK EMM-E6 User’s Guide 3-21 3.9.2 Connecting an A UI Cable to an EPIM-X T o connect an EPIM-X to a device not requiring SQE: 1. V erify that the SQE LED on the EPIM-X is of f. If the SQE LED is on, set the position of the SQE switch to of f. 2. Attach one end of an A UI cable, no longer than 50 meters in length, to the port[...]

CHAPTER 3: INSTALLATION 3-22 EMM-E6 User’s Guide 3.9.3 Connecting to an EPIM-F1/F2, or EPIM-F3 When connecting a fiber optic link segment to an EPIM-F1/F2, or EPIM-F3 keep the follo wing in mind: • When connecting a fiber optic link se gment with SMA 906 connectors to an EPIM-F1 with SMA ports, make sure each connector uses half alignment, NO[...]

CONNECTING TO THE NETWORK EMM-E6 User’s Guide 3-23 We recommend that you label the fiber optic cables to indicate Receive and Transmit ends. Cabletron Systems prelabels its cable. At one end of the cable, one fiber is labeled 1, and the other fiber is labeled 2. This pattern repeats at the other end of the cable. If you did not purchase your cabl[...]

CHAPTER 3: INSTALLATION 3-24 EMM-E6 User’s Guide Figure 3-13. The EPIM-F1/F2 and EPIM-F3 5. Check that the LNK LED on the applicable module port is on. If the LED is not on, perform each of the follo wing steps until it is: a. Check that the de vice at the other end of the link is powered. b. Verify proper “cross-over” of fiber strands betwee[...]

CONNECTING TO THE NETWORK EMM-E6 User’s Guide 3-25 3.9.4 Connecting a Thin-Net Segment to an EPIM-C T o connect a thin-net segment to an EPIM-C: 1. Set the Internal T ermination Switch (Figure 3-14), located above the port (when the EPIM has been inserted into the EMM-E6) and labeled TERM to: • the ON position ( ) to internally terminate the th[...]

CHAPTER 3: INSTALLATION 3-26 EMM-E6 User’s Guide Figure 3-14. The EPIM-C Attach thin-net segment directly to BNC connector when internal termination switch is set to on ( ). When internal termination switch is set to off ( ): Connect BNC T -connector to port. Attach a terminator or terminated thin-net segment to one female connector of tee-connec[...]

CONNECTING TO THE NETWORK EMM-E6 User’s Guide 3-27 3.9.5 Connecting an A UI Cable to an EPIM-A T o connect an EPIM-A to an external network se gment: 1. Check that the PWR LED on the EPIM-A is on. If the PWR LED is not on, contact Cabletron Systems T echnical Support. 2. Attach an external transcei ver to the network se gment intended for A UI po[...]

CHAPTER 3: INSTALLATION 3-28 EMM-E6 User’s Guide 5. Lock the A UI connector into place using the connector slide latch. 6. If the transceiv er PWR LED is off with the A UI cable connected: a. Check the A UI connections for proper pinouts. Appendix A lists the pinouts for the transcei ver connection. b. Check the cable for continuity. c. Reconnect[...]

EMM-E6 User’s Guide 4-1 CHAPTER 4 A TT A CHING A CONSOLE This chapter describes ho w to attach a Local Management console to the EMM-E6, and lists the setup and configuration requirements for: • console/terminal • console cable • console cable connections. 4.1 CONFIGURING YOUR TERMINAL The follo wing instructions outline how to configure [...]

CHAPTER 4: ATTACHING A CONSOLE 4-2 EMM-E6 User’s Guide Table 4-1. VT Terminal Setup Display Setup Menu Columns .......................... -> Controls ........................... -> A uto Wrap ........................ -> Scroll ................................ -> T e xt Cursor ....................... -> Cursor Style ................[...]

CONFIGURING A CONSOLE CABLE EMM-E6 User’s Guide 4-3 4.2 CONFIGURING A CONSOLE CABLE This section outlines the proper cable configurations for connecting the EMM-E6 to a Local Management terminal. For information on the appropriate pinouts, refer to Appendix A of this User’ s Guide. Y ou need the follo wing hardware (supplied with your EMM-E6) [...]

CHAPTER 4: ATTACHING A CONSOLE 4-4 EMM-E6 User’s Guide 4.2.1 Connecting to a VT Series T erminal T o connect a VT Series terminal to a Cabletron module Console port (Figure 4-1): 1. Connect the RJ45 connector at one end of the cable to the Console port on the Cabletron module. 2. Plug the RJ45 connector at the other end of the cable into the RJ45[...]

CONFIGURING A CONSOLE CABLE EMM-E6 User’s Guide 4-5 4.2.2 Connecting to an IBM PC or Compatible T o connect an IBM PC or compatible running VT terminal emulation to a Cabletron module Console port (Figure 4-2): 1. Connect the RJ45 connector at one end of the cable to the Console port on the Cabletron module. 2. Plug the RJ45 connector at the othe[...]

CHAPTER 4: ATTACHING A CONSOLE 4-6 EMM-E6 User’s Guide 4.3 PINOUT DESCRIPTIONS 4.4 CONFIGURING A UPS CABLE T o configure an Uninterruptible Power Supply (UPS) cable: 1. Plug a straight-through twisted pair , RS232, cable into the EMM-E6 RJ45 COM 1 Port. 2. Plug the other end of the RS232 cable into the adapter (PN 9372066) and connect the adapte[...]

EMM-E6 User’s Guide 5-1 CHAPTER 5 A CCESSING LOCAL MANA GEMENT W ith your terminal properly configured, and the correct physical cable connections in place, you can access the Local Management interface. T o access Local Management: 1. T urn the terminal on, and press the Return ke y . The EMM-E6 Passw ord Screen, Figure 5-1, appears. Figure 5-1[...]

CHAPTER 5: ACCESSING LOCAL MANAGEMENT 5-2 EMM-E6 User’s Guide 2. Enter your Password and press Retur n . The def ault Super-User access password is the Retur n key (which def aults internally to ‘public’). • If you enter an in valid password, the EMM-E6 ignores the entry , and the cursor returns to the beginning of the passw ord entry fiel[...]

EMM-E6 User’s Guide 5-3 3. Use the arro w keys to highlight an option, and press Retur n (or simply use the corresponding Function ke y). The selected screen appears. If you do nothing on LM for 15 minutes, the Passw ord Screen reappears. At this point, you must re-enter the password to continue using EMM-E6 Local Management. CH1Book Page 3 Wedne[...]

EMM-E6 User’s Guide 6-1 CHAPTER 6 COMMUNITY NAMES The Community Name T able option lets you set Local Management community names. These names act as passw ords to LM and provide security for your EMM-E6. Y ou can control EMM-E6 access by establishing up to four dif ferent lev els of security authorization - basic read-only , read-only , read-writ[...]

CHAPTER 6: COMMUNITY NAMES 6-2 EMM-E6 User’s Guide 6.2 COMMUNITY NAME TABLE SCREEN FIELDS This section briefly explains each Community Name T able Screen field. Community Name Displays the community name through which a user can access LM. All community names act as passwords to Local Management. Depending on the assigned access, community name[...]

ESTABLISHING COMMUNITY NAMES EMM-E6 User’s Guide 6-3 6.3 ESTABLISHING COMMUNITY NAMES In order for any Community Name T able edits to take effect, you must hav e super-user access. In other w ords, when you log into LM, you must do so with a super-user passw ord. A password from an y of the other lev els of access (basic-read, read-only , or read[...]

EMM-E6 User’s Guide 7-1 CHAPTER 7 CONFIGURA TION SCREEN In the EMM-E6 Configuration Screen you can assign an IP address and Subnet Mask to the EMM-E6. Y ou can also: • set the Default Interface • set the Default Gatew ay • override lock ed ports • enable all ports. 7.1 ACCESSING THE CONFIGURATION SCREEN T o access the Configuration Scre[...]

CHAPTER 7: CONFIGURATION SCREEN 7-2 EMM-E6 User’s Guide 7.2 CONFIGURATION SCREEN FIELDS The follo wing briefly explains each Configuration Screen field. I/F Displays the interface number (1 to 6) corresponding to a particular EMM-E6 channel. This number allo ws the EMM-E6 to accurately identify MIB II channel information. The follo wing table [...]

CONFIGURATION SCREEN FIELDS EMM-E6 User’s Guide 7-3 SubNET Mask Displays the Subnet Mask for each of the six EMM-E6 channels in dotted decimal notation. MAC Address Displays the physical address of each bridge interface. Default Interface Displays the default interface number for the EMM-E6 def ault gatew ay . This field defaults to NONE. Defaul[...]

CHAPTER 7: CONFIGURATION SCREEN 7-4 EMM-E6 User’s Guide 7.3 SETTING THE HOST IP ADDRESS The table on the Configuration screen allo ws you to assign an IP address and Subnet Mask to the EMM-E6. T o set the Host IP: 1. Use the arrow keys to highlight the IP Address field. 2. Enter the IP address into this field. The format for this entry is XXX.XX[...]

MODIFYING A SUBNET MASK EMM-E6 User’s Guide 7-5 7.4 MODIFYING A SUBNET MASK The EMM-E6 automatically enters the natural Subnet Mask for any IP address that you enter . A natural Subnet Mask is a logical separation between network and host identifiers within the IP address. The EMM-E6 allo ws you to modify this mask to best suit your needs. The S[...]

CHAPTER 7: CONFIGURATION SCREEN 7-6 EMM-E6 User’s Guide • the EMM-E6 does NO T provide a natural Subnet Mask that fits your host/network identifier scheme. T o modify the Subnet Mask: 1. Use the arro w keys to highlight the appropriate Subnet Mask field. 2. Enter the Subnet Mask in this field in the format of XXX . XXX . XXX . XXX, with XXX[...]

SETTING DEFAULT GATEWAY AND INTERFACE EMM-E6 User’s Guide 7-7 T o set the Default Gatew ay and its associated Default Interface: 1. Use the arro w keys to highlight the Default Interface field. 2. Enter the interface number of the EMM-E6 for the Default Gate way in this field. The interf ace number will be a value between 1 and 6. A table of th[...]

CHAPTER 7: CONFIGURATION SCREEN 7-8 EMM-E6 User’s Guide 7.6 CONNECTING/DISCONNECTING A UPS The EMM-E6 provides the option of connecting to an Uninterruptible Po wer Supply (UPS) using Local Management. T o enable the UPS connection using EMM-E6/LM: 1. Use the arro w keys to highlight the COM 1 A pplication: field. 2. Press the Return k ey until [...]

UNLOCKING PORTS EMM-E6 User’s Guide 7-9 7.7 UNLOCKING PORTS When you lock the chassis for security reasons (e.g., using remote inband management), unauthorized de vices cannot communicate through an MMA C-FNB chassis station port. The Port LOCK Override function provides f ail-safe recovery if you cannot unlock ports using remote inband SNMP . T [...]

EMM-E6 User’s Guide 8-1 CHAPTER 8 TRAP T ABLE SCREEN As an SNMP compliant de vice, the EMM-E6 can authenticate an SNMP request. The T rap T able defines the management stations to recei ve SNMP T raps for alarm/ev ent notification. 8.1 ACCESSING THE TRAP TABLE SCREEN T o access the T rap T able Screen: 1. From the Features Selection Screen, use[...]

CHAPTER 8: TRAP TABLE SCREEN 8-2 EMM-E6 User’s Guide 8.2 TRAP TABLE SCREEN FIELDS The T rap T able contains three modifiable fields. The fields, sho wn in Figure 8-1, allo w the user to direct trap information to users on the network. The three fields are: SNMP Community Name Displays the community name associated with the network management [...]

CONFIGURING THE TRAP TABLE EMM-E6 User’s Guide 8-3 6. Using the arro w keys, highlight the desired T rap IP Address field. 7. Enter the IP address of the workstation to which you want the EMM-E6 to send traps. Use the XXX.XXX.XXX.XXX format with the v alue of XXX ranging from 0 to 254. 8. Using the arro w keys, highlight the SA VE command. 9. Pr[...]

EMM-E6 User’s Guide 9-1 CHAPTER 9 SNMP T OOLS SCREEN This section describes specific commands and features within the SNMP T ools screen. This screen allo ws you to access management information bases (MIBs), and v aries according to your lev el of security access. The follo wing descriptions outline the super-user management capabilities. From [...]

CHAPTER 9: SNMP TOOLS SCREEN 9-2 EMM-E6 User’s Guide 9.2 SNMP TOOLS SCREEN FIELDS The follo wing describes the SNMP T ools Screen fields and commands. COMMUNITY NAME Identifies the community name MIB access le vel password. OID PREPEND Specifies the number prefix common to all object identifiers (OIDs) found in a MIB. The prefix ‘1.3.6.1?[...]

THE SECURITY ACCESS LEVEL EMM-E6 User’s Guide 9-3 CYCLES Allo ws you to specify the number of GET NEXT requests to walk through and ho w much time elapses between each request. REPEAT Repeats the Get command, allo wing you to monitor any changes to a specific OID. 9.3 THE SECURITY ACCESS LEVEL Each MIB component that the EMM-E6 supports (e.g., R[...]

CHAPTER 9: SNMP TOOLS SCREEN 9-4 EMM-E6 User’s Guide In order to access a specific MIB’ s components, you must set the appropriate MIB password in the COMMUNITY N AME field. T o set the SNMP T ools screen COMMUNITY N AME: 1. Use the arro w keys to highlight the field to the right of COMMUNITY NAME . 2. Enter the community name necessary for [...]

GETTING AND SETTING OIDS EMM-E6 User’s Guide 9-5 4. Press the Return k ey . If there is no instance of that OID, the EMM-E6 displays “MIB_NO_INST ANCE. ” Otherwise, the EMM-E6 displays that OID’ s data type, length, and value. T o get the next OID: 1. Highlight GETNEXT , using the arrow ke ys. 2. Press the Return k ey . “<GETNEXT> O[...]

CHAPTER 9: SNMP TOOLS SCREEN 9-6 EMM-E6 User’s Guide 5. Enter the OID’ s Data T ype . 6. Press the Return k ey . The EMM-E6 displays “SNMP OID D A T A. ” 7. Enter the Data , or v alue of the OID. 8. Press the Return k ey . If the EMM-E6 accepts the entry , it displays “<SET> OPERA TION CODE: XXXX <OK>”; otherwise, an error m[...]

SCROLLING THROUGH MIB OIDS EMM-E6 User’s Guide 9-7 T o walk through the MIB: 1. Highlight W ALK , using the arrow ke ys. 2. Press the Return k ey . “<INITIAL> OID (=|F9)” appears. 3. Enter the OID. 4. Press the Return k ey . LM be gins walking through the sublayers of the MIB av ailable from the specified OID. Each OID in the list disp[...]

CHAPTER 9: SNMP TOOLS SCREEN 9-8 EMM-E6 User’s Guide T o step through: 1. Highlight GETNEXT , using the arrow ke ys. 2. Press the Return k ey . “<GETNEXT> OID (=|F9)” appears. 3. Enter the OID (only the suf fix is necessary). 4. Press the Return k ey . The initial OID details, including its size, data type, and data v alue, appear . 5.[...]

EMM-E6 User’s Guide 10-1 CHAPTER 10 R OUTER SETUP SCREEN This chapter sho ws the Router Setup Screen, Figure 10-1, below . Using this screen the user can select the protocol to be used by any Routing Services pre viously installed in the EMM-E6. The user should use the Routing Services Manual to make the correct selections from the Router Setup S[...]

EMM-E6 User’s Guide 11-1 CHAPTER 11 DEVICE ST A TISTICS SCREEN This chapter describes the features of the De vice Statistics screen. Using this screen, you can vie w error , collision, and traffic statistics for the entire network, a selected slot, or a selected port. This screen also provides the option of enabling and disabling ports. T o acce[...]

CHAPTER 11: DEVICE STATISTICS SCREEN 11-2 EMM-E6 User’s Guide 11.1 DEVICE STATISTICS This section describes De vice Statistics screen data fields. BYTES RECEIVED Displays the number of bytes recei ved. FRAMES RECEIVED Displays the number of frames recei ved. FRAMES FILTERED Displays the total number of frames filtered. FRAMES TRANSMITTED Displa[...]

DEVICE STATISTICS SCREEN COMMANDS EMM-E6 User’s Guide 11-3 RUNT PACKETS Displays the number of runt packets recei ved from the netw ork. A runt packet is less than the minimum Ethernet frame size of 64 bytes, not including preamble. GIANT PACKETS Displays the number of giant packets recei vedfrom the netw ork. A giant packet is greater than the m[...]

CHAPTER 11: DEVICE STATISTICS SCREEN 11-4 EMM-E6 User’s Guide NETWORK This command lets you select the network you want to monitor . The choices range from A to F , depending on the configuration of your network and the options a vailable from this configuration. F or example, if you do not ha v e a Media Interface Module running on the A Chann[...]

DEVICE STATISTICS SCREEN COMMANDS EMM-E6 User’s Guide 11-5 11.2.2 Selecting a Network/Slot/P ort When the De vice Statistics screen first appears, statistics are displayed for Network 1, Slot 1, and Port 1. T o view statistics for another Network, Slot, and Port, use the NETWORK X, SLO T X, or POR T X commands at the bottom of the screen. T o se[...]

CHAPTER 11: DEVICE STATISTICS SCREEN 11-6 EMM-E6 User’s Guide 11.2.4 Disabling P or ts The DISABLE POR T command lets you disable the port selected in the POR T command. Y ou must first use the POR T command to select the desired port. T o set the POR T DISABLE command: 1. Use the arro w ke ys to highlight the DISABLE POR T command at the bottom[...]

EMM-E6 User’s Guide 12-1 CHAPTER 12 COMMAND LINE INTERF A CE SCREEN The Command Line Interface (CLI) Screen, Figure 12-1, will function in future releases of the EMM-E6. Figure 12-1. EMM-E6 CLI Information Screen EMM-E6-960 LOCAL MANAGEMENT Cabletron EMM-E6 Revision 0.00.00 CLI INFORMA TION COMMUNITY NAMES IP T ABLE TRAP T ABLE SNMP TOOLS RETURN [...]

EMM-E6 User’s Guide 13-1 CHAPTER 13 MIB NA VIGA T OR This chapter describes the procedures required to access the MIB Navigator residing on the EMM-E6. The MIB Na vigator Command Set is described and examples of each command are pro vided. 13.1 MANAGING DEVICE MIBs The MIB Navigator allo ws access to a command set from which you can configure an[...]

CHAPTER 13: MIB NAVIGATOR 13-2 EMM-E6 User’s Guide 13.2 ACCESSING THE MIB NAVIGATOR The MIB Navigator function resides on your Cabletron de vice (EMM-E6, ETWMIM, ESXMIM, etc.). Access the MIB Navigator in-band, through a de vice (i.e., w orkstation) connected to the same network or internetwork, using a T elnet connection. T o access the MIB Navi[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-3 13.3 MIB NAVIGATOR COMMAND SET OVERVIEW There are three categories of commands in the command set. • Na vigation Commands - Allo ws the user to access and manage the MIB for the de vice running the MIB Navigator . Some of commands also provide user community-string information. The com[...]

CHAPTER 13: MIB NAVIGATOR 13-4 EMM-E6 User’s Guide • T o abort the output or interrupt a process the escape character is ^C (where ^ equals the Control ke y). • A slash (/) proceeding an OID issues that command from the root directory regardless of where you are in the MIB. If no slash precedes the OID the command issues from your current MIB[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-5 Navigation Commands (cont’ d) cd Use this command to change directories within a MIB subtree. The path specified must be valid. This command has two special subtree options: .. - Moves you to one subtree above the current one. / - Moves you to the root. F or mat: cd [P A TH] Example MI[...]

CHAPTER 13: MIB NAVIGATOR 13-6 EMM-E6 User’s Guide Navigation Commands (cont’ d) dir , ls Each of these commands displa ys the contents of a specified sub-tree (the current director y displa ys if you do not specify a sub-tree). Options can be used separately or combined. When no option is used the ASCII name of the leaf object displays. The t[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-7 Navigation Commands (cont’ d) help The help command provides a list of a vailab le MIB Navigator commands. The command also provides help for individual MIB Navigator commands . F or mat: help (general help) help <COMMAND> (specific help) Example MIBNav> help su Command: su F[...]

CHAPTER 13: MIB NAVIGATOR 13-8 EMM-E6 User’s Guide Navigation Commands (cont’ d) pwd The pwd command displa ys the full path name for the director y in which you are currently w orking. F or mat: pwd Example MIBNav> pwd # /iso/org/dod/inter net/mgmt/mib-2 set The set command enables y ou to set the value of a managed object. This command is [...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-9 Navigation Commands (cont’ d) su The su command enables y ou to change your community name to allow f or diff erent access to the MIB. The community name that y ou enter allows you either Basic Read, Read Only , Read/Wr ite, or Super-User access to that de vice’ s MIBs, depending on [...]

CHAPTER 13: MIB NAVIGATOR 13-10 EMM-E6 User’s Guide Navigation Commands (cont’ d) whoami The whoami command displa ys your community string and access privileges to the MIB. When using the whoami command one of these f our access lev els will display: Basic Read, Read Only , Read/Wr ite, and Super User . F or mat: whoami Example MIBNav> whoa[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-11 13.3.3 Built-In Commands The follo wing provides a brief description, the proper format, and an example of each Built-In command. arp The arp command provides access to the ARP (Address Resolution Protocol) cache, enab ling you to vie w cache data, delete entries, or add a static route.[...]

CHAPTER 13: MIB NAVIGATOR 13-12 EMM-E6 User’s Guide Built-In Commands (cont’ d) netstat The netstat provides a displa y of general network statistics f or the managed device . The netstat command must be used with one of the f ollowing two displa y options: -i Displa ys status and capability information for each interf ace. -r Displa ys routing[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-13 Built-In Commands (cont’ d) snmp- branch The snmpbranch command enab les you to query another SNMP de vice. The command provides a displa y of objects that match the specified OBJECT -ID . If no match is made, no object will displa y . F or mat: snmpbranch <IP ADDRESS> <COMM[...]

CHAPTER 13: MIB NAVIGATOR 13-14 EMM-E6 User’s Guide Built-In Commands (cont’ d) snmpset The snmpset command enables y ou to set the value of an object in other SNMP de vices. This command requires the appropriate community string and OID . When defining a new leaf , the set command prompts you for a value type . P ossible v alue types are as f[...]

MIB NAVIGATOR COMMAND SET OVERVIEW EMM-E6 User’s Guide 13-15 Built-In Commands (cont’ d) traceroute The tr aceroute command generates a TRA CEROUTE request to a specified IP address and provides a displa y of all ne xt-hop routers in the path to the device . If the de vice is not reached, the command displa ys all next-hop routers to the point[...]

CHAPTER 13: MIB NAVIGATOR 13-16 EMM-E6 User’s Guide 13.3.4 Special Commands The follo wing provides a brief description, the proper format, and an example applicable to each Special command. done, quit, exit These commands enable you to exit from the MIB Navigator and return to the operating system. F or mat: done Example MIBNav> done Connecti[...]

USING LANVIEW EMM-E6 User’s Guide 14-1 CHAPTER 14 TR OUBLESHOO TING This chapter includes information for troubleshooting network and EMM- E6 operational problems. The follo wing sections describe the EMM-E6’ s LANVIEW LEDs, provide a troubleshooting checklist, and e xplain how and when to reset the EMM-E6. 14.1 USING LANVIEW The EMM-E6 uses th[...]

CHAPTER 14: TROUBLESHOOTING 14-2 EMM-E6 User’s Guide Table 14-1. LANVIEW LEDs LED Color Description Error Condition/ Recommended Action CPU Multicolor Green Red Flashing Green indicates that the board is operating properly . If OFF , or Red, the board has a problem. Press the reset s witch on the EMM-E6 front panel to re- initialize the board. If[...]

USING LANVIEW EMM-E6 User’s Guide 14-3 XMT A,B,C ,D (T ransmit) Green LED flashes to indicate that a segment is transmitting a frame. If not connected to the LAN, the LED flashes e very two seconds to indicate it is transmitting BPDU frames. If none of the transmit LEDs is flashing, the EMM-E6 is not transmitting frames on an y of the segments[...]

CHAPTER 14: TROUBLESHOOTING 14-4 EMM-E6 User’s Guide 14.2 TROUBLESHOOTING CHECKLIST If your EMM-E6 is not operating properly , the follo wing checklist describes some of the problems that may occur with the EMM-E6 installed in an MMA C, possible causes for the problem, and suggestions for resolving the problem. CH1Book Page 4 Wednesday, March 20,[...]

TROUBLESHOOTING CHECKLIST EMM-E6 User’s Guide 14-5 Table 14-2. Troubleshooting Checklist Problem Possible Causes Recommended Action No LEDs on. Loss of P ow er to the M MAC. EMM-E6 not properly installed. Check the proper installation of the MMA C power supply module and its access to a live outlet. Check that the MMA C has adequate power . Some [...]

CHAPTER 14: TROUBLESHOOTING 14-6 EMM-E6 User’s Guide A por t on a MIM managed by the EMM-E6 cannot access the network, while other por ts on the same MIM are able to access. The por t is either off or segmented. P or t cable is def ective. Enable the port via local or remote management. T ry connecting the por t with a diff erent cable. User para[...]

USING THE RESET SWITCH EMM-E6 User’s Guide 14-7 14.3 USING THE RESET SWITCH The EMM-E6 incorporates a recessed reset switch, located abov e the LEDs (see Figure 14-1). This reset switch initializes the EMM-E6 processor . This switch does NO T initialize Non-V olatile Random Access Memory (NVRAM), the non-volatile random access memory where the EM[...]

EMM-E6 User's Guide 15-1 CHAPTER 15 IMA GE FILE DO WNLO AD This chapter provides instructions for do wnloading an image file to the EMM-E6 using three dif ferent methods; altering hardware switch settings to force the module to accept ne w firmware, through UNIX operating System commands, and by setting specific MIB OID strings. T o set OID[...]

CHAPTER 15: IMAGE FILE DOWNLOAD 15-2 EMM-E6 User's Guide 15.1 GETTING STARTED Cabletron ships backup copies of image files for all of its intelligent de vices. The first file, suf fixed with .hex (after it has been decompressed from a .zip ) is for Standard Local Do wnloading (any port, except the BRIM). The second file, suf fix ed with [...]

FORCED DOWNLOAD WITH UNIX EMM-E6 User's Guide 15-3 15.2 FORCED DOWNLOAD WITH UNIX Do wnloading an EMM-E6 image file with a UNIX workstation requires setting up a management station, and forcing the do wnload. T o force a do wnload, you can use mode switch 6 on the EMM-E6 or set specific MIB OIDs. Due to v ariations between UNIX systems and i[...]

CHAPTER 15: IMAGE FILE DOWNLOAD 15-4 EMM-E6 User's Guide 2. Edit the /etc/hosts file by adding the EMM-E6 MA C address and follo w it with the same unique name you used in step one above. (e.g., 00:00:1d:32:0c:1b EMME6). 3. If you already hav e a /tftpboot directory , confirm the rarp setup of your workstation as follo ws: Request a process [...]

FORCED DOWNLOAD WITH UNIX EMM-E6 User's Guide 15-5 7. Edit the /etc/inetd.conf file by removing an ything prior to the tftpboot daemon (e.g., the # sign) that comments-out the line. 8. Kill the inetd process (e.g., unix% kill -HUP ‘process ID number’ ), and then restart the process (e.g., unix% inetd ), to enable the re vised inetd.conf ?[...]

CHAPTER 15: IMAGE FILE DOWNLOAD 15-6 EMM-E6 User's Guide T o force a download using the EMM-E6 do wnload switch: 1. Remov e the safety bars from the MMA C chassis. 2. Unscre w the knurled knobs at the top and bottom of the EMM-E6 front panel. 3. Slide the MIM out of the chassis until you can easily access the EMM-E6 switch panel located at the[...]

STANDARD LOCAL DOWNLOAD EMM-E6 User's Guide 15-7 15.3 STANDARD LOCAL DOWNLOAD T able 15-1 provides a step by step procedure for do wnloading the firmware image file. This section provides specific MIB OIDs, their names, and the required setting for proper image file do wnload. Refer to your specific MIB walking tool documentation for inst[...]

CHAPTER 15: IMAGE FILE DOWNLOAD 15-8 EMM-E6 User's Guide 15.4 REMOTE RUNTIME DOWNLOAD T able 15-2 provides a step by step procedure for do wnloading the firmware image file. This section provides specific MIB OIDs, their names, and the required setting for proper image file do wnload. Refer to your specific MIB walking tool documentation [...]

REMOTE RUNTIME DOWNLOAD EMM-E6 User's Guide 15-9 Table 15-2. Runtime Download Procedure Step OID Name OID Number Data Type SNMP OID Data (1). ctDL TFTPRequestHost 1.3.6.1.4.1.52.4.1.5.8.1. 18.0 IP address Enter the IP address of the tftp server . (2). ctDL TFTPRequest 1.3.6.1.4.1.52.4.1.5.8.1. 19.0 string (ASCII) Enter the path to the image ?[...]

CHAPTER 15: IMAGE FILE DOWNLOAD 15-10 EMM-E6 User's Guide NO TE : If you selected f orceDo wnLoadReset at Step 3, then DO NO T CONTINUE, you ha ve completed all necessary settings. NO TE : If you selected f orceDo wnLoad at Step 3, then you can reset the EMM-E6 at a later time. Y ou can reset the EMM-E6 remotely using the ctDLInitiateColdBoot [...]

EMM-E6 User’s Guide A-1 APPENDIX A EMM-E6 SPECIFICA TIONS This appendix provides the operating specifications for the Cabletron Systems EMM-E6. Cabletron Systems reserves the right to change these specifications at any time without notice. A.1 BRIDGING FUNCTIONALITY FLASH Memory: 2 MB (e xpandable to 14 MB) Shared Sonic Memory: 4 MB (expandable[...]

APPENDIX A: EMM-E6 SPECIFICATIONS A-2 EMM-E6 User’s Guide A.2 REPEATER FUNCTIONALITY Delay T imes (port x in to port x out) Start of Pack et: 1,450 ns max. Collision to J AM: 1,550 ns max. Preamble Input: Minimum of 40 bits to a max. of 64 bits required. Output: 6 4 bits min . (last 2 bits = 1 , 1) . J AM Output: If a collision occurs on one of t[...]

EMM-E6 User’s Guide A-3 A.3 COM 1 PORT T ype: Standard RJ45 port Pin 1 T ransmit Data (XMT) From COM 1 port 2 Data Set Ready (DSR) T o COM 1 port 3 Not used 4 Recei ve Data (RCV) T o COM 1 port 5 Signal Ground (GND) 6 Data T erminal Ready (DTR) From COM 1 port 7 Not used 8 Not used A.4 COM 2 PORT Type: Standard RJ45 port Pin 1 T ransmit Data (XMT[...]

APPENDIX A: EMM-E6 SPECIFICATIONS A-4 EMM-E6 User’s Guide A.6 SAFETY This unit meets the safety requirements of UL 1950 (without D3 de viations), CSA C22.2 No. 950, and EN 60950; the EMI requirements of FCC Part 15 Class A, EN 55022 Class A, and VCCI Class I; and the EMC requirements of EN 50082-1, including IEC 801-2 (ESD) le vels 1 through 4, I[...]

EMM-E6 User’s Guide A-5 A.8 EPIM-T (10BASE-T TWISTED PAIR PORT) Internal Transceiver: Cabletron Systems TPT 10BASE-T Twisted Pair Transceiver Type: 8 Pin RJ45 Jack (Figure A-1). Figure A-1. EPIM-T (with RJ45 Port) A slide switch on the EPIM-T determines the cross-over status of the cable pairs. The switch residing on the X side indicates the pair[...]

APPENDIX A: EMM-E6 SPECIFICATIONS A-6 EMM-E6 User’s Guide A.9 EPIM-F1/F2 (MULTIMODE FIBER OPTIC PORT) Internal Transceiver: Cabletron Systems FOT-F Fiber Optic Transceiver Type: EPIM-F1: SMA fiber optic ports (Figure A-3) EPIM-F2: ST fiber optic ports (Figure A-3) Figure A-3. EPIM-F1 and EPIM-F2 T able A-1, EPIM-F1/-F2 Statistics Recei ve Sensiti[...]

EMM-E6 User’s Guide A-7 A.10 EPIM-F3 (SINGLE MODE FIBER OPTIC PORT) Internal Transceiver: Cabletron Systems FOT-F3 Fiber Optic Transceiver Type: ST fiber optic ports (Figure A-4) Figure A-4. EPIM-F3 Transmitter power is inversely proportional to temperature rise. Use the Output Power Coefficient to calculate increased or decreased power output fo[...]

APPENDIX A: EMM-E6 SPECIFICATIONS A-8 EMM-E6 User’s Guide T able A-2. EPIM-F3 Statistics P arameter T ypical Minimum Maximum T ransmitter Peak W ave Length: 1300 nm 1270 nm 1330 nm Spectral W idth: 60 nm — 100 nm Rise T ime: 3.0 ns 2.7 ns 5.0 ns Fall T ime: 2.5 ns 2.2 ns 5.0 ns Duty Cycle: 50.1% 49.6% 50.7% TX Po wer: -15.1 dBm TX Budget: 14.4 [...]

EMM-E6 User’s Guide A-9 A.11 EPIM-C (BNC PORT) Internal Transceiver: Cabletron Systems TMS-3 Transceiver Type: BNC receptacle, with gold center contact, for use with BNC type T-connectors and RG-58 thin-net cable (Figure A-5). Figure A-5. EPIM-C (with BNC Port) Termination: Using the switch to the side of the port, you can internally terminate th[...]

APPENDIX A: EMM-E6 SPECIFICATIONS A-10 EMM-E6 User’s Guide A.12 EPIM-A AND EPIM-X (AUI PORT) Interface Connector: DB-15 Port (female connector for EPIM-A, male connector for EPIM-X) (Figure A-6). Type: 15 position D type receptacle Figure A-6. EPIM-A and EPIM-X (AUI Port) T able A-3. DB-15 Pinouts Connector Shell: Protective Ground Pin 1 Logic Re[...]

EMM-E6 User's Guide B-1 APPENDIX B EMM-E6 OIDs This Appendix contains a selected number of OID strings that are among the most frequently needed. The OIDs are implemented by using either the SNMP T ools procedures detailed in Chapter 9 or the MIB Na vigator procedures located in Chapter 13. Note that the OIDs can be accessed using LANVIEW , SP[...]

APPENDIX B: COMMONLY-USED OIDs B - 2 EMM-E6 User's Guide B.2 CONFIGURING ARP REQUEST PACKETS The EMM-E6’ s SNMP T ools Screen allows you to generate an Address Resolution Protocol (ARP) Request packet utilizing specific framing through local management. An ARP Request is used to send an SNMP T rap to a destination node that has not yet made[...]

PORT GROUP SECURITY EMM-E6 User's Guide B-3 B.3 PORT GROUP SECURITY The next se ven OIDs are used for port group security features. rptrSrcAddrMgmtPortLock Description: Setting this object to lock acti v ates the network port security lock. Setting a v alue of portMisMatch (3) is in valid. A read of PortMisMatch means that the lock status betw[...]

APPENDIX B: COMMONLY-USED OIDs B - 4 EMM-E6 User's Guide rptrPortSecurityLockStatus Description: Defines the lock status for this particular port entry . Object Identifier: 1.3.6.1.4.1.52.4.1.1.1.4.3.9.1.1.3 Data T ype: Integer V alues: 1 unlock 2 lock Access Policy: read-write rptrPortSecurityLockAddAddress Description: Setting a v alue to [...]

PORT GROUP SECURITY EMM-E6 User's Guide B-5 rptrPortSecurityDisableOnViolation Description: Designates whether port is disabled if source address is violated. A source address violation occurs when an address is detected which is not in the source address list for this port. If this port is disabled for this port address violation it can be en[...]

APPENDIX B: COMMONLY-USED OIDs B - 6 EMM-E6 User's Guide B.4 ENABLING & DISABLING SNMP TRAPS The EMM-E6 supports the collection and reporting of SNMP T raps of se veral types and at se veral le vels. SNMP T rap sending may be enabled or disabled for the follo wing trap types: segmentation, link, and source addressing. The traps may be enab[...]

ENABLING & DISABLING SNMP TRAPS EMM-E6 User's Guide B-7 rptrSaTrapSetScraddr Description: Enables and disables source address traps for this network (i.e., Channel A, B, or C). Object Identifier: 1.3.6.1.4.1.52.4.1.1.1.4.1.6.2.1 Data T ype: Integer V alues: 1 disable 2 enable Access Policy: read-write B.4.2 Enabling Module Le vel SNMP T r[...]

APPENDIX B: COMMONLY-USED OIDs B - 8 EMM-E6 User's Guide rptrPortGrpHwTrapSetSeg Description: Enables and disables segmentation traps for the specified port group at the board le vel. Object Identifier: 1.3.6.1.4.1.52.4.1.1.1.4.2.5.1.1.1.3.<b#> Data T ype: Integer V alues: 1 disable 2 enable Access Policy: read-write rptrPortGrpSaTrapS[...]

ENABLING & DISABLING SNMP TRAPS EMM-E6 User's Guide B-9 rptrPortHwTrapSetLink Description: Enables and disables link traps for this port. Object Identifier: 1.3.6.1.4.1.52.4.1.1.1.4.3.8.1.1.1.3.<b#>.<p#> Data T ype: Integer V alues: 1 disable 2 enable Access Policy: read-write rptrPortHwTrapSetSeg Description: Enables and disa[...]

APPENDIX B: COMMONLY-USED OIDs B - 10 EMM-E6 User's Guide B.5 ACTIVATING RMON GROUPS The initial configuration of the EMM-E6 at installation does not provide the acti vation of the RMON Default and Host Groups. These management groups may be acti vated or deacti v ated through local management using OID Sets. As the specific OID used to cont[...]

BRIDGING EMM-E6 User's Guide B-11 B.6 BRIDGING The follo wing OID is used to enable and disable the interface for the bridging function. dot1dstpPortEnable Description: The enabled/disabled status of the port. Object Identifier: 1.3.6.1.2.1.17.2.15.1.4 Data T ype: Integer V alues: 1 enable 2 disable Access Policy: read-write B.7 TRUNK PORT SE[...]

APPENDIX B: COMMONLY-USED OIDs B - 12 EMM-E6 User's Guide B.8 CHANNEL SELECTION The follo wing two OIDs are needed to select channel assignments (A, B, or C) for all boards or indi vidual ports. These OIDs are needed for products supporting multichannel connecti vity . fnbconnect Description: Denotes the connection status of the CSMA/CD board [...]

OID HASHING ON SOURCE ADDRESES EMM-E6 User's Guide B-13 B.9 OID HASHING ON SOURCE ADDRESES The follo wing OID allows the enabling and disabling of DEC hashing, which may be necessary or desired in DECnet and mixed IEEE 802.3/ DECnet en vironments. rptrSrcAddrMgmtHashType Description: This enables and disables DECnet hashing on source addresses[...]

EMM-E6 User’s Guide GL-1 GLOSSAR Y This glossary provides brief descriptions of some of the recurrent terms in the main text, as well as related terms used in discussions of the rele vant netw orking discussions. These descriptions are not intended to be comprehensi ve discussions of the subject matter . For further clarification of these terms,[...]

Attenuation to BRIM GL - 2 EMM-E6 User’s Guide Attenuation Loss of signal po wer (measured in decibels) due to transmission through a cable. Attenuation is dependent on the type, manufacture and installation quality of cabling, and is expressed in units of loss per length, most often dB/m. AU I Attachment Unit Interface. A cabling type used in Et[...]

Broadcast to Connectivity EMM-E6 User’s Guide GL-3 Broadcast A type of netw ork transmission; a broadcast transmission is one which is sent to ev ery station on the network, regardless of location, identification, or address. Buses Physical portions of the backplane of a modular chassis which pass information between modules . Card See Module . [...]

Console to Decryption GL - 4 EMM-E6 User’s Guide Console See T erminal . Cross-Over A length of multi-stranded cable in which the transmit wire(s) of one end is/are crossed ov er within the cable to connect to the receiv e wire(s) of the other end. Cross- Overs are used to connect de vices to like de vices, ensuring that transmit and receiv e con[...]

Dedicated to Fault-Tolerance EMM-E6 User’s Guide GL-5 Dedicated Assigned to one purpose or function. Default Gatewa y the IP address of the network or host to which all packets addressed to unknown netw ork or host are sent Device (network) An y discrete electronic item connected to a netw ork which either transmits and receiv es information thro[...]

FDDI to Host GL - 6 EMM-E6 User’s Guide FDDI Fiber Distributed Data Interf ace. A high-speed networking architectur e . FDDI requires that stations only transmit data when they ha ve been gi ven permission by the operation of the network, and dictates that stations will recei ve information at pre-determined interv als. See also To k e n . Fiber [...]

Hot Swap to IP EMM-E6 User’s Guide GL-7 Hot Swap Hot Swap capability indicates that a product is capable of being remov ed from an operating modular chassis and reinserted or replaced without requiring that the chassis and all associated modules be powered do wn. Hub See Modular Chassis . IANA Internet Assigned Numbers Authority . An agency which[...]

IP Address to Mbps GL - 8 EMM-E6 User’s Guide IP Address Internet Protocol address. The IP address is associated, by the network manager or network designer , to a specific interface . The a vailability of IP addresses is controlled by the IAN A . ISO International Organization for Standardization. The ISO has de veloped a standard model on whic[...]

Media to Nanometer EMM-E6 User’s Guide GL-9 Media Physical cabling or other method of interconnection through which network signals are transmitted and receiv ed. MIB Management Information Base. A database of data related to a specific management or manageable network de vice, which may be viewed or modified through SNMP commands. MIB T ree Th[...]

Node to Port Assignment GL - 10 EMM-E6 User’s Guide Node Any single end station on a netw ork capable of receiving, processing, and transmitting packets. NVRAM Non-V olatile Random Access Memory . Memory which is protected from elimination during shutdown and between periods of activity , frequently through the use of batteries. Octet A numerical[...]

Protocol to SDRAM EMM-E6 User’s Guide GL-11 Protocol A set of rules go verning the flo w of information within a communications infrastructure. Protocols control operations such as frame format, timing, and error correction. See also Architecture . PVC Polyvinyl Chloride. A material commonly used in the fabrication of cable insulation. This term[...]

Segment to SQE GL - 12 EMM-E6 User’s Guide Segment A portion of a network which is separated from other networks. A segment may be one portion of a bridged, switched, or routed network. Se gments must be capable of operating as their own netw orks, without requiring the services of other portions of the network. Server A workstation or host de vi[...]

ST to Throughput EMM-E6 User’s Guide GL-13 ST Straight-T ip. A modular connector and port system used with both multimode and single mode fiber optic cabling. The ST connector utilizes an insert and twist-lock mechanism. Station See node . STP Shielded T wisted Pair . Refers to a type of cabling, most commonly used in T oken Ring networks, which[...]

Token to UTP GL - 14 EMM-E6 User’s Guide T oken A particular type of frame which informs a station in the T oken Ring and FDDI network architectures that it may transmit data for a specified length of time. Once that time has expired, the station must stop transmitting and pass the token along to the ne xt station in the network. T oken Ring A n[...]

EMM-E6 User’s Guide Index-i Numerics 10BaseT 3-19 A A Channel 1-12 Address Classes identifying 1-25 Addressing 1-22 ARP B-2 arp 13-11 Attenuation Multimode 2-4 SingleMode 2-5 Twisted Pair 2-3 B B Channel 1-13 Backplane 1-10 Basic read only 1-21 Basic-Read 6-2 Baud Rate Default 3-4 BOOTP 3-4 BPDU 1-19 branch 13-4 Bridge 1-17 BRIM 1-16 BRIMs 1-5, 3[...]

Index-ii EMM-E6 User’s Guide E E Channel 1-16 Eavesdrop Prevention 1-33 EMM-E6 Features 1-4 Enabling Ports 7-9 EPIMs 1-7 Errors, statistics 11-2 exit 13-16 F F Channel 1-16 Fault Tolerant Wiring 2-12 Filter 1-18 Filter Rate A-1 Firmware Upgrades 15-1 Flash Memory 1-7 Flexible Network Bus 1-10 Forced download 15-1 FORMIM-22 2-7 Forward Rate A-1 Fo[...]

EMM-E6 User’s Guide Index-iii M MAC address 1-22 Memory 3-6, A-1 EEPROM 1-7 Local Dynamic 1-8 Shared Dynamic 1-8 MIB 1-22 access 13-2 description 13-1 hierarchy 13-1 managing devices 13-1 mib2 13-7 Mode Switches 3-3 Multi Media Access Center 1-10 N Natural Mask 1-26 netstat 13-12 Network ID 1-23 next 13-7 Non-Volatile RAM 3-5 O OID 1-22, B-1 desc[...]

Index-iv EMM-E6 User’s Guide S Safety A-4 Sample Configurations 2-9 Security 1-33 Community names 1-21 SET 1-21 set 13-8 SIMM Upgrade 3-6 Slash notation 13-4 SNMP 1-21 SNMP Tools screen 9-1 SNMP Traps 8-1 snmpbranch 13-13 snmpget 13-13 snmpset 13-14 snmptree 13-14 Spanning Tree Algorithm 1-19 Specifications A-1 Environmental A-3 Statistics, viewi[...]

EMM-E6 QUICK REFERENCE CARD EMM-E6 QUICK REFERENCE CARD LED DESCRIPTION CPU Flashing Green: Board Operating Properly . Red: CPU error condition. STBY A, B, C , D Amber indicates por t or interface placed in standby state. RCV A, B, C , D Green indicates valid link from station to EMM-E6 interface . Amber indicates segment receiving traffic. XMT A,[...]

EMM-E6 QUICK REFERENCE CARD EMM-E6 QUICK REFERENCE CARD • Slide the EMM-E6 into the first and second slots of the MMAC chassis (as shown belo w). • Secure the module by tightening the knurled knobs at the top and bottom of the module. • P ower on the MMA C chassis. Monitor the state of the CPU LED . • The CPU LED will flash, indicating th[...]