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4-37

Netelligent 2008/2016 10Base-T Repeater User Guide

Writer:

  Chris Seiter 

Project:

 Netelligent 2008/2016 10Base-T Repeater User Guide 

Comments:

  185814-003

File Name:

2000_4.doc 

Last Saved On:

8/21/96 10:42 AM

SNMP over IP requires the full support of the UDP/IP protocol stack, which
includes address resolution protocols, a control and error message protocol, and
IP fragmentation. ARP (Address Resolution Protocol), RARP (Reverse Address
Resolution Protocol), and BOOTP provide address resolution capabilities. ARP
allows the dynamic mapping of IP addresses to a given hardware address. The
Netelligent 2008/2016 repeater supports ICMP (Internet Control Message
Protocol) as the standard for error and control message exchanges. The repeater
supports IP fragmentation up to a maximum packet size of 1520 bytes.

Supported MIBs

The 2008 and 2016 repeaters support the following MIBs:

■ 

RFC1213 

 Management Information Base for Network Management

of TCP/IP-based Internets (MIB II); the firmware supports the following
groups in MIB II:

❏ 

System Group

❏ 

Interfaces Group

❏ 

Address Translation Group

❏ 

atPhysAddress is supported for read only

❏ 

atNetAddress is supported for read only

❏ 

IP Group

❏ 

ICMP Group

❏ 

UDP Group

❏ 

SNMP Group

■ 

RFC1516 

 Definitions of Managed Objects for the IEEE 802.3

Repeater Devices (technically part of MIB II).

❏ 

rptrReset does not perform an actual repeater reset

❏ 

rptrNonDisruptTest does not perform an actual test

■ 

■ 

NWS2000 MIB

■ 

Novell Repeater MIB 

 This MIB is required to support

Novell's NMS.

Summary of Contents for Netelligent 2008

Page 1: ...Netelligent 2008 2016 10Base T Repeater User Guide...

Page 2: ...or written consent from Compaq Computer Corporation The software described in this guide is furnished under a license agreement or nondisclosure agreement The software may be used or copied only in ac...

Page 3: ...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 caus...

Page 4: ...A C22 2 No 950 93 73 23 EEC Low Voltage Directive TUV Rheinland EN60950 1988 A1 1990 1993 and A2 1992 1992 1993 Immunity This equipment complies with EMC directive 89 336 EEC ITE which includes EN 500...

Page 5: ...ansion Ports 1 6 Serial COM Port 1 7 Uplink Switch 1 9 Lithium Battery 1 9 Chapter 2 Planning Repeater Installation Before You Begin 2 1 Installation Requirements 2 1 Environmental Requirements 2 1 El...

Page 6: ...6 Repeater Expansion Port 3 6 Multi Floor Configuration 3 9 Setting the Uplink Switch 3 10 Segmenting Repeaters 3 11 Backup Port 3 13 Connecting Power 3 14 Power On Self Test and Initialization 3 15 N...

Page 7: ...lt Processing 4 20 Compaq Specific Parameters 4 21 Using IPX 4 21 Using SNMP over IP and over IPX 4 22 VT100 Management 4 22 VT100 Screens 4 23 Navigating the VT100 Interface 4 23 Starting the Managem...

Page 8: ...Out of Band Management SLIP 4 42 Updating Flash 4 42 Using XMODEM 4 43 Using a BOOTP and TFTP Server 4 43 Using TFTP via MIB Variables 4 44 Using TFTP Over SLIP 4 44 Repeater MAC Address 4 45 Appendi...

Page 9: ...The contents of this guide are organized as follows Chapter 1 Provides an overview of the repeater and describes the repeater s features Chapter 2 Helps you plan the installation of the repeater Chap...

Page 10: ...IN and OUT that allow up to ten repeaters to be daisy chained to accommodate network growth Extended Repeater Architecture ERA allows the combined cabling for all interconnected repeaters to extend u...

Page 11: ...FL Alternate Media Connectors AMCs Figures 1 1 and 1 2 show the 16 port and 8 port repeater front panel Figure 1 3 shows the back panel for both versions Power Segmentation Collision Media Expansion P...

Page 12: ...rting Port 8 to uplinkable port Repeater Expansion Ports for interconnecting up to 10 16 Port Repeaters Serial COM Port for out of band management and firmware upgrade PWR MDI MDI X SEG COM PORT IN OU...

Page 13: ...indicates any activity on the Media Expansion Port MEP The following table lists the possible colors and statuses of each LED and describes the meaning of each condition Table 1 1 LED Conditions and...

Page 14: ...nk OK state Flashing Green The port is in a receiving state OFF The port link state failed or there is no connection at the port NOTE LEDs listed as yellow might appear orange on the repeater s front...

Page 15: ...eater Link test is available for the fiber optic AMC i e hardware is always enabled but firmware can effectively disable link test Link test is not available for AUI or BNC AMCs Repeater Expansion Por...

Page 16: ...t repeater This allows both types of repeaters to coexist in the same stack Serial COM Port The repeater has a serial COM port that uses a 9 pin D male connector with a standard AT pinout This port en...

Page 17: ...and descriptions 1 2 3 4 5 6 7 8 9 Name Description Pin No 1 2 3 4 5 6 7 8 9 DCD RxD TxD DTR GND DSR RTS CTS RI Data carrier detect Receive data Transmit data Data terminal ready Signal ground Data se...

Page 18: ...epeater Port Default Uplinkable OUT Port Figure 1 8 Uplink Switch IN ports use an internal crossover of the receive and transmit lines enabling the port to connect to a network interface card using st...

Page 19: ...ter Shielded AC power cord One repeater expansion port cable Category 3 UTP Four adhesive backed rubber feet Installation Requirements To help ensure a correct installation read this section to determ...

Page 20: ...s dimensions are 1 75 x 17 00 x 8 4 inches 4 44 x 43 18 x 21 34 centimeters HxWxD You can interconnect up to ten repeaters in one stack If there is not enough space to mount the repeaters in a single...

Page 21: ...8 and 26 AWG Most telephone installations use 24 gauge wiring UTP wire should meet the following requirements Solid copper Nominal capacitance less than 16 pF ft Nominal impedance 100 Ohms Nominal att...

Page 22: ...wisted pair cable Pins 4 5 7 and 8 are not used Table 2 1 Straight Through Twisted Pair Wiring Twisted Pair Number Pin Number Signal Description To Pin Number Signal Description 1 1 2 TD TD 1 2 TD TD...

Page 23: ...Pin Number To Pin Number 1 1 2 1 2 2 3 6 3 6 3 4 5 4 5 4 7 8 7 8 Stacks that contain only one repeater do not require a repeater expansion port cable However to connect the repeater to another repeat...

Page 24: ...ule Maximum Length AUI 164 feet 50 meters BNC 607 feet 185 meters Fiber 10BASE 6562 feet 2000 meters Fiber FOIRL 3281 feet 1000 meters NOTE Drive distances for fiber are based on 62 5 125 micrometer c...

Page 25: ...ns for your repeater Port Connects To HEP IN OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AMC 16 Port Repeater Setup and Cabling Chart Segment Unit Number Building Location Rack Mount Table Mount MAC Ad...

Page 26: ...stallation Rack Inventory Chart Use this chart to record the components installed in a particular rack Wiring Closet Number Rack Number Installer Date Example 16 port Repeater 16 port Repeater Figure...

Page 27: ...ollowing steps 1 Turn the repeater over so that its bottom side faces up 2 Remove the four rubber feet from their packaging 3 Peel the protective paper backing OFF the rubber feet Then position the fe...

Page 28: ...ORT IN OUT EXPANSION MEP COL UP LINK 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 8 X X X X X X X X X X X X X X X Figure 3 2 Positioning the Repeater in a Rack Installing an Alternate Media Connector The 10Ba...

Page 29: ...ia Connectors Figure 3 3 Optional Alternate Media Connectors Setting Jumpers for a BNC AMC If you install a BNC AMC but do not connect a cable you must set the connector board jumper to disable the po...

Page 30: ...MC To insert an AMC follow these steps 1 Disconnect the repeater from power 2 Remove the cover plate from the Media Expansion Port on the repeater s front panel 3 Insert the AMC through the Media Expa...

Page 31: ...air UTP or STP cable that ends with an RJ 45 connector These ports can support cable lengths up to 100 meters 328 feet To attach twisted pair cable plug one of the RJ 45 connectors into the selected p...

Page 32: ...repeater to the next and then repeated until it reaches the destination repeater This minimizes signal reflection at extended distances and also provides a stack order and status signal to indicate t...

Page 33: ...the top of a stack connect the cable to the IN port of the added repeater Then connect the other end of the cable to the OUT port of the existing repeater in the stack Do not leave cables connected a...

Page 34: ...Ethernet bus data 10B2_GND 2 In Out 10B2 Ethernet bus gnd TXDB 3 In Out Serial data negative upper repeater XUP 4 In External top status indicator SHARE 12 5 Pwr Shared 12V TXDB 6 In Out Serial data...

Page 35: ...MEP SEG COL MEDIA EXPANSION PORT 7 1 16 15 12 13 14 11 10 9 8 6 5 4 2 3 UP LINK TM EXPANSION COM PORT IN OUT PWR MEP SEG COL MEDIA EXPANSION PORT 7 1 16 15 12 13 14 11 10 9 8 6 5 4 2 3 UP LINK TM EXPA...

Page 36: ...create a safety hazard Setting the Uplink Switch The uplink switch lets you cascade repeaters by connecting the 16th RJ 45 port on one 16 port repeater or the 8th RJ 45 port on one 8 port repeater to...

Page 37: ...When you isolate a repeater it occupies its own collision domain and is separate from the collision domain of the repeaters that are still connected to the backplane Isolating repeaters lets you crea...

Page 38: ...X X X X X X X X X X X X MDI MDI X X X X X X X X X X X X X X X X MDI MDI X X X X X X X X X X X X X X X X MDI MDI X X X X X X X X X X X X X X X X MDI MDI X X X X X X X X X X X X X X X X Figure 3 10 Exa...

Page 39: ...p port Repeater 1 Repeater 2 Repeater 3 Media Expansion Port PWR SEG COM PORT IN OUT EXPANSION MEP COL TM UP LINK 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 8 Media Expansion Port PWR SEG COM PORT IN OUT EX...

Page 40: ...d Power Cord Connector Figure 3 12 Connecting the Power Cord NOTE The power outlet should be near the repeater and easily accessible 3 When you plug in the power cable verify that the repeater perform...

Page 41: ...owed by the Flash initialization The PWR LED shows the current Power POST initialization status as follows OFF No power to the repeater or a hardware failure Yellow POST initialization in progress or...

Page 42: ...MIB variable nw2NVRAMStatus is set to error 2 These messages only indicate a NVRAM malfunction The repeater and management functions are still operational Only the configuration parameters in NVRAM ar...

Page 43: ...aters Boot and Runtime Overview The Netelligent 2008 2016 repeater firmware is divided into two distinct firmware blocks Boot Runtime Boot Boot provides these basic features POST Power On Self Test BO...

Page 44: ...In band management over IPX with SMMP and SNMP Intrusion detection with the option to configure security BOOTP RARP InterHub Communication Autopolarity Reversal for standard UTP Ports Port Management...

Page 45: ...ee the section XMODEM Implementation in this chapter The text file uses acronyms to simplify the firmware parsing The following example configuration file updates the repeater configuration parameters...

Page 46: ...in the left bit position e g 128 0 0 0 1 s in Net Mask must be contiguous i e proceeding from left to right once a bit is set to 0 there can be no more 1 bits e g 255 255 192 0 is contiguous 255 255 1...

Page 47: ...file can contain any number of comments as long as it does not exceed the maximum file size and line length No spaces are allowed before or after the equal sign in each line except for a write communi...

Page 48: ...ange off orange 0 5 second each If there is an active SLIP session on the COM serial port there is a 3 minute time out before an XMODEM transfer can begin When an XMODEM transfer starts the repeater d...

Page 49: ...g initiated over a null modem cable at 9600 baud Repeater sends a letter C and waits 10 seconds for a response Repeater sends a NAK and waits 10 seconds for a response Repeater sends a letter C and wa...

Page 50: ...lid modem response the connection algorithm restarts and the repeater firmware reattempts an XMODEM transfer Step 1 2 See if a modem is still attached Once a modem connection is established the repeat...

Page 51: ...ined number of BOOTP RARP requests each of which contains the MAC address of the requesting repeater The number or requests is set in the nw2BootpRarpRetries MIB variable The repeater issues the BOOTP...

Page 52: ...name including path must be 64 characters hn hostname do not fill in This entry will cause the hostname to be sent as part of the BOOTP Response This is necessary for the unit to TFTP properly If no...

Page 53: ...receive a RARP response within 5 seconds it waits 5 minutes and then re issues the BOOTP RARP requests The repeater can receive an IPX set request during the 5 minute interval when it is not making B...

Page 54: ...IB variable for a response If the RARP server is active and finds the requesting repeater s MAC address in its database it sends the repeater its IP address The repeater uses the response to determine...

Page 55: ...NMP community name General unit level parameters these parameters are configured during boot backplane isolated or bussed default bussed link test disable enable for each port default enabled ports di...

Page 56: ...n the same repeater However a port on the repeater cannot back up a port on another repeater During normal operation the backup port is disabled About every 5 seconds the repeater monitors the status...

Page 57: ...Status MIB variable to enable 2 Once you configure intrusion for a port the repeater s firmware monitors the port for intruders If the port detects an unauthorized MAC address the repeater partitions...

Page 58: ...o correct a wiring error Boot v1 30 enables Autopolarity reversal before it starts its BOOTP RARP sequence If Runtime v1 30 is running with an older version of Boot it enables Autopolarity reversal wh...

Page 59: ...ble stored in NVRAM All IP reception and transmission use the same frame type To allow the repeater to route any IP traffic the frame type must also match the default gateway s frame type The repeater...

Page 60: ...ype variable The repeater performs the following steps to determine the IPX frame type to use on packets it originates 1 Use the value stored in NVRAM for the frame type 2 If no value is stored in NVR...

Page 61: ...roadcasts its services via SAP every 55 seconds You can disable or enable these SAP broadcasts through a MIB variable The default setting is enabled IP Autodiscovery The repeater supports a generic IP...

Page 62: ...dware Failure If the top or bottom repeater has a hardware failure for example the CPU fails the SNMP network manager re synchronizes inter hub communications and sees a shorter stack If one of the mi...

Page 63: ...ing 1 3 6 1 4 1 215 1 1 4 2 6 sysDescr The system description strings contain the product name SAP ID A hex 05A9 SAP ID is used to advertise the repeater service Novell assigns this SAP ID to Compaq C...

Page 64: ...connectivity You can use SNMP over IPX to set the IP address of each repeater in the stack even if none of the repeaters in the stack have a valid IP address For example Novell s NMS could autodiscov...

Page 65: ...dministrative Administrative keystrokes let you move from one field to another or from one screen to another These types of keystroke include the following Enter key Validates the entry If an entry is...

Page 66: ...ithin a specific amount of time Therefore we recommend that you read through the following steps to become familiar with the procedure When you apply power to the repeater the Boot phase starts the ST...

Page 67: ...nter the following command VT100 The Login screen appears Figure 4 1 Login Screen NOTE If the 20 seconds expires before you enter VT100 you must wait for the port to cycle back to the modem initializa...

Page 68: ...d Management Figure 4 2 Main Menu Screen Error Messages If you enter an incorrect password the following error message appears ERROR Password incorrect please re enter The following sections describe...

Page 69: ...lowing IP frame types Ethernet II or Ethernet 802 2 SNAP You can select the following IPX frame types Ethernet II Ethernet 802 2 Ethernet 802 3 or Ethernet 802 2 SNAP Error Messages The following erro...

Page 70: ...isolated IP address IP netmask and default gateway for a selected unit in the stack To select a unit move the cursor to the Unit field and press or to change the unit number Figure 4 4 Stack Configur...

Page 71: ...le or disable the state of backup port entries Figure 4 5 Backup Port Configuration Screen Adding a Backup Port Entry To add a backup port entry follow these steps 1 From the Action field move the cur...

Page 72: ...3 Press the Enter key Updating the State of a Backup Port Entry To update the state of a backup port entry follow these steps 1 Press the or keys to highlight a backup port entry 2 Move the cursor to...

Page 73: ...ng illustration Figure 4 6 Port Statistics Screen To scroll forward or backward to other ports move the cursor to the Scroll field and press the keys To enable or disable ports move the cursor to the...

Page 74: ...e your password follow these steps 1 Enter the old password in the Old password field NOTE You must enter information in the Old password field to advance the cursor to the New and Verify password fie...

Page 75: ...ading Firmware The Download Firmware screen lets you download an updated version of firmware The download can take place via a serial connection using XMODEM default or TFTP over Ethernet or via a Tel...

Page 76: ...lected TFTP as the protocol type enter the TFTP server IP address in the TFTP server IP address field and enter the firmware image filename in the Filename field 4 To execute the download position the...

Page 77: ...g Up the Modem The Modem Setup screen lets you enter the modem s initialization string and disable or enable auto negotiation The default initialization string is usually adequate For more information...

Page 78: ...SNMP network manager can manage any unit in a Netelligent 2008 2016 repeater stack You can set various parameters including the write community and write protect flag using the nws2StackTable MIB obje...

Page 79: ...ges The repeater supports IP fragmentation up to a maximum packet size of 1520 bytes Supported MIBs The 2008 and 2016 repeaters support the following MIBs RFC1213 Management Information Base for Netwo...

Page 80: ...statistics at the module or repeater or group level total frames total octets total errors total partitioned ports current number transmit collisions very long events all link status bit map backplane...

Page 81: ...administration enabled disable port type port operational status yes no not available When you power off the repeater the statistics listed above are cleared Traps The Netelligent 2008 and 2016 repeat...

Page 82: ...returned Health state traps include Port Autopartition Trap indicates that a port has been autopartitioned as a result of 32 consecutive collisions or because the DTE was jabbering Backup Port Activa...

Page 83: ...uests are broadcast over IPX every 60 seconds The SAP packet contains the SAP IDs of the available services A repeater s SAP packet uses a hex SAP ID of 0239 HMI services and a hex SAP ID of 05A9 repe...

Page 84: ...t these parameters by downloading a text configuration file via XMODEM in boot see the section Using XMODEM or through MIB variables or VT100 in Runtime see the section VT100 Management in this chapte...

Page 85: ...er Configuring the Repeater During the Boot Process in this chapter You can also use XMODEM to update the Flash from the VT100 interface This method does not require a configuration file See the secti...

Page 86: ...the TFTP download The firmware makes the same TFTP server request performed for the BOOTP TFTP download You can also initiate a TFTP download from the Download Firmware screen in the VT100 interface S...

Page 87: ...eater MAC Address The MAC address is a unique identifier assigned by the manufacturer to distinguish individual nodes If you use management software to manage the repeater you must know the MAC addres...

Page 88: ...ne OUT Optional Media Expansion Port only on the 16 port repeater The following optional snap in media expansion modules are available for the 16 port repeater to support alternative cabling BNC conne...

Page 89: ...Frequency 50 to 60 Hz Power 0 25 to 0 50 Amps maximum for 16 port model the 8 port model draws slightly less power Power Consumption Typical 10 W Maximum 15 W Power Cord USA Shielded 1 8 meters 6 fee...

Page 90: ...eater User Guide Environmental Specifications Operating Environment 32 to 120 F 0 to 49 C 5 to 95 humidity non condensing Storage Environment 32 to 151 F 0 to 66 C 5 to 95 humidity non condensing 0 to...

Page 91: ...trol LLC The LLC layer can provide either connections oriented services connectionless services or a combination of both 802 3 An IEEE standard that governs Carrier Sense Multiple Access Collision Det...

Page 92: ...e g IP address IP net mask IP default gateway and to assist in downloading the latest version of the Flash A repeater BOOTP request contains the repeater s MAC address Boot Sectors The repeater uses...

Page 93: ...oot sectors hardware write protected an SNMP information sector and the Flash program sectors Ethernet II Ethernet II or DIX was defined by Digital Intel and Xerox The frame format for Ethernet II dif...

Page 94: ...om a node generally as a result of a hardware or firmware failure LED See Light Emitting Devices Light Emitting Devices Considered to be eye safe due to relatively low optical power which by design em...

Page 95: ...both ends Module The component that provides connectivity ports for the LAN Modules are installed in larger systems called concentrators Network Interface Card A card that plugs into a device and allo...

Page 96: ...o check the functionality of the unit Protocol Data Unit A packet that contains control information and optional data RARP See Reverse Address Resolution Protocol REP See Repeater Expansion Port Repea...

Page 97: ...es RS 485 The EIA Electronics Industry Association recommended Standard 485 defines a standard way of transferring serial information by wire using differential line drivers and receivers Router A dev...

Page 98: ...a stack Each entry contains the backplane number module type MAC address IP address IP default gateway IP net mask and reset An SNMP network manager can change these configuration parameters for each...

Page 99: ...onnectors User Datagram Protocol Provides reliable connectionless delivery service using IP It adds the ability to distinguish among multiple destinations within a given host UTP See Unshielded Twiste...

Page 100: ...process 4 43 Boot v1 30 4 16 BOOT RARP request intervals 4 11 BOOT_QUOTESERVER field 4 43 BOOTP request 4 9 4 43 response 4 9 4 10 4 11 server 4 9 BOOTP RARP initialization 4 14 requests 4 11 BOOTP T...

Page 101: ...3 15 image file 4 3 image file transfers 4 7 sectors 4 4 4 9 update 4 1 4 5 4 42 Fragmentation IP 4 37 4 42 Frame type 4 9 4 12 4 16 4 17 4 18 IP 4 17 Frame type per IP network 4 17 Frequency 2 2 G Ge...

Page 102: ...mance 4 11 session 4 24 station 4 14 4 18 Mapping of IP addresses 4 37 MDI X 3 10 Media Dependent Interface Reversed See MDI X Media Expansion Port 1 2 1 4 1 5 Media Expansion Port cable 2 6 MEP See M...

Page 103: ...LED 1 4 outlet 2 2 requirements 2 1 Power On Self Test POST 3 15 Primary port See also backup port Programmable feature 4 16 R Rack mounting 3 1 RARP requests 4 9 4 11 4 12 4 20 response 4 11 server...

Page 104: ...ment 4 1 4 16 4 18 management requests 4 36 manager 4 15 4 42 network management station 4 40 network manager 4 20 4 36 4 40 network manager requests 4 42 platforms 4 19 requests 4 11 traps 4 18 Stack...

Page 105: ...22 UTP 1 5 2 3 3 5 UTP port status 4 6 V Version field 4 34 Voltage 2 1 VT100 1 1 4 14 W Windows option box 4 24 Wiring crossover 2 4 guage 2 3 straight through 2 4 Wiring error 4 16 X XMODEM 1 1 1 7...

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