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xii

8275-416 User’s Guide

Summary of Contents for 8275-416

Page 1: ...8275 Model 416 High Performance Ethernet Workgroup Switch User s Guide Release 1 2 GC30 4026 02 IBM...

Page 2: ......

Page 3: ...8275 Model 416 High Performance Ethernet Workgroup Switch User s Guide Release 1 2 GC30 4026 02 IBM...

Page 4: ...given below A form for readers comments appears at the back of this publication If the form has been removed address your comments to Department CGF Design Information Development IBM Corporation PO...

Page 5: ...ments 7 Front panel 8 Switch LED status 10 Single digit display 11 Base ports LEDs 12 Feature module LEDs 13 Physical characteristics 17 Chapter 2 Accessing the switch 19 Types of Connectivity 19 Out...

Page 6: ...router table menu 66 Self Learning IP host address menu 67 User account management 70 Defining user accounts 70 Managing login sessions 71 System utilities 72 Saving applied changes 72 Logging out 72...

Page 7: ...iwanese Class A Warning Statement 106 Class 1 Laser Statement 106 Class 1 LED Statement 106 Trademarks 107 Appendix C Cable Pinout Diagrams 109 Straight Through 10BASE T 100BASE TX Cables 109 Straight...

Page 8: ...Readers Comments We d Like to Hear from You 137 vi 8275 416 User s Guide...

Page 9: ...7 21 SNMP community configuration 39 22 SNMP trap receiver configuration 41 23 Trap flags configuration 42 24 Trap log 43 25 Trap log status 44 26 Telnet configuration 44 27 Ping 45 28 ARP cache 46 29...

Page 10: ...able RJ 45 to IBM Data Connector 109 69 Crossover UTP Cable RJ 45 to RJ 45 T568A 110 70 Crossover UTP Cable RJ 45 to RJ 45 T568B 110 71 Crossover STP Cable RJ 45 to IBM Data Connector Crossover 110 72...

Page 11: ...of LEDs for 4 port 100BASE FX feature module 15 8 Status of LEDs for 2 port 1000BASE SX feature module 16 9 Summary of physical characteristics for the switch 17 10 Connection methods and available us...

Page 12: ...x 8275 416 User s Guide...

Page 13: ...ing SNMP to manage the switch v Chapter 5 Using the Web Interface on page 81 introduces the Web interface v Chapter 7 Troubleshooting and Obtaining Service on page 89 gives suggestions for solving pro...

Page 14: ...ubscribe to receive e mail notifications about code updates tips and FAQs for your switch Obtaining service If you need assistance in troubleshooting or you need service for your 8275 416 call IBM at...

Page 15: ...abit Feature Module v The addition of these functions Trunking Self learning IP Port based and fast spanning tree Enable disable Web mode configuration from SNMP Enable disable broadcast storm suppres...

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Page 17: ...abits per second Ethernet switching v Desktop and segment switching infrastructure v Affordable migration to higher performance networks As a network administrator you have a choice of three easy to u...

Page 18: ...Forwarding database The switch port MAC addresses are stored in the forwarding database An address learned by the switch is removed from the forwarding database after a period of time if no frames hav...

Page 19: ...P address is a known host If both tests pass the packet is automatically re addressed to the destination IP host device and is sent out the appropriate switch port A Router Table and Host Table are us...

Page 20: ...pported for the 10 100BASE TX and 100BASE FX ports All members of the trunk must support Sun Trunking 1 0 For information about configuring trunks see Trunk management menu on page 58 Up to 8 trunks c...

Page 21: ...the Ethernet network only through the ports which are members of the Default VLAN VLAN 1 You have a choice of these easy to use management methods v A VT100 terminal interface allows you to fully mana...

Page 22: ...affic through the use of spanning tree protocol STP which provides a level of fault tolerance and ensures that Redundant paths are disabled when the main paths are operational Redundant paths are enab...

Page 23: ...de fiber MMF cabling 550 m 1804 ft at full duplex 10 100BASE TX 10BASE T connections are MDX ports and operate correctly with standard Category 3 4 or 5 100 ohm UTP or STP cable and connecting hardwar...

Page 24: ...232 serial interface sometimes referred to as the out of band management port Use a null modem serial cable when connecting to a workstation Appendix C Cable Pinout Diagrams on page 109 Use a VT100 t...

Page 25: ...v 4 Port 100BASE FX Ethernet Feature Module P N 31L4054 v 2 Port 1000BASE SX Ethernet Feature Module P N 30L6663 Chapter 1 Introduction 9...

Page 26: ...ailure The switch is not operational On On Off The switch is operational On Blinking Off Configuration file or Operational Code file transfer is in process Do not power off or reset the switch On Off...

Page 27: ...d RAM problem Replace the switch 3 Detected an unsupported feature module Remove the feature module and update the operational code or the feature module is not fully seated in its connector 4 PIF fau...

Page 28: ...us of LEDs for 16 base 10 100BASE TX ports LED Color State Explanation Right Ethernet Port LED Green ON Indicates a 100 Mbps port OFF Indicates a 10 Mbps port Left Ethernet Port LED Green ON The link...

Page 29: ...f LEDs for 8 port 10 100BASE TX feature module LED Color State Explanation OK Green ON There is power to feature module OFF There is no power to feature module no power to the switch or the module has...

Page 30: ...no power to the feature module no power to the switch or the module has failed Fault Yellow ON There is a module fault OFF There is no module fault Port LED Green ON Link is up OFF Link is down Blink...

Page 31: ...o power to the feature module no power to the switch or the module has failed Fault Yellow ON There is a module fault OFF There is no module fault Port LED Green ON Link is up OFF Link is down Blinkin...

Page 32: ...ule OFF There is no power to the feature module no power to the switch or the module has failed Fault Yellow ON There is a module fault OFF There is no module fault Port LED Green ON Link is up OFF Li...

Page 33: ...0 mm 17 16 in Depth 355 6 mm 14 in Weight estimate 6 0 kg 13 lb Minimum Service Clearance Front 15 3 mm 6 in for cooling cables and to view LEDs Sides 50 mm 2 in for cooling Rear 15 3 mm 6 in for coo...

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Page 35: ...ng on your method of connection Table 10 Connection methods and available user interfaces Type of Connection Available User Interface Out of band Terminal interface via the EIA 232 port terminal direc...

Page 36: ...e key definitions You may need to configure your terminal emulation application to enable the use of these keys Remotely attached terminal To establish out of band connectivity using a remotely attach...

Page 37: ...blanks no password g See Appendix D Interface Conventions for the Console on page 113 for a description of terminal interface key definitions You may need to configure your terminal emulation applicat...

Page 38: ...d write and read only See Appendix D Interface Conventions for the Console on page 113 for a description of the terminal keys You may need to configure your terminal application to enable use of these...

Page 39: ...interface The is no specific logout command to end a Web session The Web session will be automatically logged off after a period of inactivity The inactivity timeout value that is configured for the...

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Page 41: ...and the boot server name The switch supports reserved or static DHCP documented in RFC 1541 The DHCP or BootP server must be available through the Default VLAN VLAN 1 To configure the IP information r...

Page 42: ...destination address is an individual address B 0 or a group address B 1 v A locally administered address must have bit 6 On B 1 and bit 7 Off B 0 MAC Address Type Specifies if the burned in MAC addres...

Page 43: ...and it is accepted v Selecting APPLY causes the change on the current panel to be applied but not retained across a reset or power cycle v Selecting SAVE causes the change on the current panel to be...

Page 44: ...gnored such as space Tab Esc Once a configuration change is made and is accepted the cursor is no longer on the field that was modified the change is not put into effect until you select APPLY Saving...

Page 45: ...l data is displayed v Selecting an option from one of the items displayed when the pull down menu is selected All items in a pull down menu are correct Until you select APPLY or SAVE you can restore a...

Page 46: ...e Configuration changes made using SNMP Set commands are not automatically retained across a reset or power cycle To get these changes retained across a reset or power cycle issue an SNMP Set to the s...

Page 47: ...ure 13 shows the Login panel you need an approved user name and password to login User Name Can be up to 8 alphanumeric characters in length The value is not case sensitive The default is admin for a...

Page 48: ...Allows selection of the utilities available with the switch System information The switch manages information about its installed hardware and software System information contains read only and read w...

Page 49: ...ly inventory information available for your switch System description Figure 17 on page 34 shows the system information for your switch Figure 15 System information menu Figure 16 Inventory informatio...

Page 50: ...ates the physical location of the switch Specify up to 31 alphanumeric characters The default is blank System Contact Identifies the person responsible for your network for example you network adminis...

Page 51: ...e switch To configure the IP information select Management Menu from the Main Menu then select Network Connectivity Configuration Menu from the Management Menu The Network Connectivity Configuration M...

Page 52: ...onfiguration protocol currently being used Possible values are v BootP Static DHCP the switch periodically sends requests to a BootP or DHCP server until a response is received v None the switch will...

Page 53: ...e Default VLAN ID 1 When BootP or DHCP is enabled the switch periodically sends out requests until a response is received from either a DHCP or BootP server The IP information in the BootP or DHCP res...

Page 54: ...BootP server is not saved unless you select SAVE Next configure the Network Configuration Protocol Configuring the switch for DHCP or BootP If you are using DHCP or BootP you must configure the approp...

Page 55: ...r community names are blank Client IP Address This attribute is an IP address or portion thereof from which this device will accept SNMP packets with the associated community The requesting entity s I...

Page 56: ...us of Disable Inactive means that the community is not active no SNMP requests using this community will be accepted In this case the SNMP manager associated with this community cannot manage the swit...

Page 57: ...s Configuring trap conditions You can optionally configure which traps that the switch should generate You do this by selecting a status for the trap condition that is if it is either enabled or disab...

Page 58: ...ot traps and topology change notification traps See Appendix E Introduction to Virtual LANs VLANs on page 117 for more information Broadcast Storm Flag This flag enables or disables the broadcast stor...

Page 59: ...Up v Link Down v Multiple Users v New Spanning Tree Root v Spanning Tree Topology Change v Broadcast storm start end Checking trap log status To check how many traps have been generated select Trap M...

Page 60: ...he last entry Configuring Telnet You can manage the switch remotely using a Telnet connection Chapter 2 Accessing the switch on page 19 describes setting up a Telnet connection To configure for Telnet...

Page 61: ...ns that no new Telnet sessions are to be established Any already established session remains active until the session is ended or an abnormal network error ends it The default value is Yes Ping The sw...

Page 62: ...t every second Command Send is the only command To stop sending pings press any key that moves the cursor from the current field ARP cache Select Management Menu from the Main Menu Then select ARP Cac...

Page 63: ...set a time after which the address will timeout and to enable disable broadcast storm recovery and 802 3x flow control To set these values select Device Configuration Menu from the Main Menu and then...

Page 64: ...sable This value applies to only full duplex mode ports Self Learning IP Mode Indicates that the self learning IP mode is enabled or disabled Disable is the default Note For the Self Learning IP funct...

Page 65: ...8 ports Type This is a read only field It indicates whether a port currently belongs to a trunk or is enabled for monitoring Type values are v Trnk indicates that this port belongs to a trunk v Mntr i...

Page 66: ...l traffic with an external network analyzer The selected probe port can monitor mirror traffic from one port The selected probe port also receives and transmits network traffic tagged frames which all...

Page 67: ...ring Used to Enable or Disable the port monitoring function The default is Disable Monitoring Port This is the slot port that the monitored data is sent to This is the slot port that a Network Analyze...

Page 68: ...ning Tree Switch Configuration Status Menu or Spanning Tree Port Configuration Status Menu from the Device Configuration Menu Figure 33 The following section lists and describes the STP configuration...

Page 69: ...the priority of port on the switch The range is 0 to 255 The default is 128 Port Path Cost This output is automatically calculated The cost represents the shortest distance from any switch to the roo...

Page 70: ...VLAN Summary and Configuration Menu to begin configuring your VLANs Figure 36 Note that there are four panels on which you can define a total of 32 VLANs The parameters for this panel are Unit ID Sel...

Page 71: ...or Modifying a VLAN If you want to add a VLAN move the cursor to the ADD VLAN command at the bottom of the panel and press Enter To modify an existing VLAN move the cursor to the line containing the...

Page 72: ...mic Indicates that this port is to be dynamically registered in this VLAN by GVRP v Monitor Indicates that this is a monitoring port v blank no text Indicates that this port is excluded from being a m...

Page 73: ...seconds The default is 60 centiseconds 0 6 seconds 802 1Q port configuration See Figure 39 for parameters used to configure your 802 1Q ports Port Indicates by a slot ID and port number which port is...

Page 74: ...ned bandwidth of all links Link aggregation also provides automatic point to point redundancy between two devices switch to switch Each link in the trunk must be running at the same link speed and in...

Page 75: ...runk ports will be disabled during trunk transitions This is done to ensure that frames are not misordered when flows are re assigned to new ports N A indicates the trunk is not configured The range o...

Page 76: ...ion Menu It specifies the spanning tree protocol STP mode for the port values are v 802 1D the default v Fast indicates fast STP mode for this port v Off indicates STP is turned off for this port Link...

Page 77: ...resh every few seconds All counters may not update every few seconds Even though the refresh rate is every few seconds some counters will not change For example the Self Learning Statistics counters u...

Page 78: ...t statistics can be viewed on four consecutive panels Figure 45 Figure 46 on page 63 Figure 47 on page 63 and Figure 48 on page 64 To view the next panel move the cursor to NEXT PAGE at the bottom of...

Page 79: ...Figure 46 Port detailed statistics Page 2 of 4 Figure 47 Port detailed statistics Page 3 of 4 Chapter 4 Using the Terminal Interface 63...

Page 80: ...switch statistics that are collected Switch detailed statistics To view detailed switch statistics select Switch Detailed Statistics Menu Page 1 of 2 from the Statistics Menu See Figure 50 on page 65...

Page 81: ...itched by the self learning IP function since it was enabled The count is all inclusive for the switch regardless of the routers or hosts involved The value starts at 0 whenever the function is enable...

Page 82: ...d and age out reflecting the dynamic nature of host traffic as it traverses the switch Forwarding database information To view forwarding database information select Forwarding Database Menu from the...

Page 83: ...yed in the order of increasing IP addresses 2 The table can contain up to 32 entries with up to 11 entries per page up to 3 pages 3 Only the number of pages that contain data are displayed Self Learni...

Page 84: ...he router since the host was last learned by the self learning IP function Router Gateway IP Address The IP address of the router to which this host communicates when sending IP traffic to a different...

Page 85: ...tched count is shown whenever the host information is displayed or manually refreshed Changes in the count value are also reflected in the Packets Switched value on the Switch Detailed Statistics Menu...

Page 86: ...ess mode Password The password can be up to eight alphanumeric characters and is not case sensitive A blank password indicates no password The default value is blank Confirm Password The confirm passw...

Page 87: ...lowed to access the switch Delete means the user will be removed from the list upon an apply or save The status of the read write user name is always Enabled Managing login sessions On the User Accoun...

Page 88: ...To permanently save configuration changes either select F4 to save or go to the System Utilities Menu and select Save Applied Changes as shown in Figure 57 Logging out When you have finished using th...

Page 89: ...he switch is retained after a code update or a reset The switch displays result messages to indicate the status of a file transfer Table 11 and Table 12 on page 74 show the messages along with explana...

Page 90: ...ave to be downloaded via the bootcode utility function For configuration retry the download If the file transfer still fails contact your IBM service representative File transfer failed A general erro...

Page 91: ...Check to make sure these fields match the file location on the TFTP server File transfer completed successfully The switch successfully sent the file to the TFTP server Downloading a file to the swit...

Page 92: ...blank File path can be appended to the file name if the string is less than 17 characters Otherwise the File Path field will need to be used and the File Name will be appended to the File Path as is...

Page 93: ...you want the reset to proceed A successful reset is indicated by the LEDs on the switch After selecting Reset Menu from the System Utilities Menu you are given the choice of the resets you can request...

Page 94: ...et The switch is automatically reset when this command is processed You are prompted to confirm that you want the reset to proceed Reset the configuration data to the factory defaults by indicating th...

Page 95: ...til the switch is reset The switch is automatically reset when this command is processed You are prompted to confirm that you want the reset to proceed Reset the passwords by indicating the particular...

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Page 97: ...ter 4 Using the Terminal Interface on page 31 navigating the Web interface will not be difficult This chapter is a brief introduction to the Web interface Configuring for Web Access To have Web access...

Page 98: ...and the System Description Menu is displayed in Frame 3 3 Make your selection by clicking on the appropriate item in the navigation tree in Frame 2 Note There is an inactivity timeout associated with...

Page 99: ...e effect Refresh The Refresh button that appears next to the Apply button in Web interface panels refreshes the data on the panel Restart Refreshes the list and displays the data starting at the begin...

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Page 101: ...Cs that are supported because the SNMP specification is not described in this chapter MIBs supported by the switch are shown in Table 13 Table 13 MIBs Supported by the Switch MIBs Supported MIB II RFC...

Page 102: ...nMode in the 8275 416 private MIB dot1dSr Group Not supported dot1dStatic Group Not supported dot1dTP Not supported dot1dTpLearnedEntryDiscards Not supported IEEE 802 3 Ethernet MIB RFC 1643 RFC 1643...

Page 103: ...he interface index ifIndex is sometimes used to identify the specific interface being addressed On the switch each Ethernet port is an interface and so is the IP agent being used to manage it which is...

Page 104: ...88 8275 416 User s Guide...

Page 105: ...ch as workstations connected to a switch are unable to communicate with other devices in the network use the following steps to start the troubleshooting process 1 Locate the switch to which the devic...

Page 106: ...ed cables between a port and the device at the other end Procedure A Use this procedure if all LEDs are Off 1 Verify that the ac power outlet to which the switch power supply is connected is active If...

Page 107: ...s a member of the VLAN over which traffic from this device would transverse this is usually VLAN 1 See Appendix E Introduction to Virtual LANs VLANs on page 117 for more details d Try pinging the atta...

Page 108: ...erational code You can also examine the Port Configuration Menu accessible from the Device Configuration Menu Any ports with an x in the STP St column have been diagnostically disabled To isolate this...

Page 109: ...t beschreven hoe u electrische apparatuur op een veilige manier moet bekabelen en aansluiten Danger Avant de proc der l installation de ce produit lisez d abord les consignes de s curit dans la brochu...

Page 110: ...SD21 0030 In dit boekje vindt u veilige procedures voor het aansluiten van elektrische appratuur VAARA Ennen kuin aloitat t m n tuotteen asennuksen lue julkaisussa Varoitus Turvaohjeet Lue t m ensin S...

Page 111: ...fety Information Read This First SD21 0030 k nyvecsk ben le rt biztons gi inform ci kat Ez a k nyv le rja milyen biztons gi int zked seket kell megtenni az elektromos berendez s huzaloz sakor illetve...

Page 112: ...0 som beskriver sikkerhetsrutinene for kabling og tilkobling av elektrisk utstyr Perigo Antes de iniciar a instala o deste produto leia as informa es de seguran a Cuidado Informa es de Seguran a Leia...

Page 113: ...scribe los procedimientos de seguridad para cablear y enchufar equipos el ctricos Varning livsfara Innan du b rjar installera den h r produkten b r du l sa s kerhetsinformationen i dokumentet Varning...

Page 114: ...i produktet medmindre netledningen er trukket ud VAARA Virtal hde on varustettu kaksinapaisella sulakkeella jossa on my s maanapa Tuotteessa voi olla j nnite jos verkkojohtoa ei ole irrotettu ATTENTIO...

Page 115: ...que o cabo de alimenta o esteja desligado o produto pode estar sob tens o Precauci n Hay una fusi n de doble polo neutro en la fuente de alimentaci n El producto podr a estar cargado el ctricamente a...

Page 116: ...100 8275 416 User s Guide...

Page 117: ...Appendix A Safety Information 101...

Page 118: ...102 8275 416 User s Guide...

Page 119: ...ato ku Tokyo 106 Japan The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law INTERNATIONAL BUSINESS MACHINES CORPORATI...

Page 120: ...ctors or by unauthorized changes or modifications to this equipment Unauthorized changes or modifications could void the user s authority to operate the equipment This device complies with Part 15 of...

Page 121: ...eiber verlangt werden angemessene Ma nahmen durchzuf hren und daf r aufzukommen EN 50082 1 Hinweis Wird dieses Ger t in einer industriellen Umgebung betrieben wie in EN 50082 2 festgelegt dann kann es...

Page 122: ...Statement Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Appareil Laser de Classe 1 To IEC 825 1 1993 Class 1 LED Statement Class 1 LED Product LED Klasse 1 LED Klass 1 Luokan...

Page 123: ...t Windows Windows NT and the Windows logo are trademarks of Microsoft Corporation in the United States other countries or both Java and all Java based trademarks and logos are trademarks of Sun Micros...

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Page 125: ...ght Through 10BASE T 100BASE TX Cables Straight Through 10BASE T 100BASE TX Cables for STP Figure 66 Straight Through UTP Cable RJ 45 to RJ 45 T568A Figure 67 Straight Through UTP Cable RJ 45 to RJ 45...

Page 126: ...ossover 10BASE T 100BASE TX Cables for STP Figure 69 Crossover UTP Cable RJ 45 to RJ 45 T568A Figure 70 Crossover UTP Cable RJ 45 to RJ 45 T568B Figure 71 Crossover STP Cable RJ 45 to IBM Data Connect...

Page 127: ...EIA 232 Port Figure 72 Pinout of the EIA 232 Port Appendix C Cable Pinout Diagrams 111...

Page 128: ...itch End 9 Pin Female TXD RXD RTS CTS DSR GND DCD DTR RI 3 2 7 8 6 5 1 4 9 2 3 4 5 6 7 8 20 22 Figure 73 EIA 232 Null Modem Cable for Terminal with 25 Pin Connector Figure 74 EIA 232 Null Modem Cable...

Page 129: ...ing the cursor keys No insert or overwrite modes can be performed in the field The text in the field is erased and replaced by the new text If you press the Esc key before you move off the field the c...

Page 130: ...ssword are processed for login v On a non leaf menu option and press Enter the selected menu is displayed A non leaf menu is a panel that contains a list of menu names that can be selected v On the Un...

Page 131: ...accepted Uppercase Words in the Menu Identifies commands READ ONLY When in the upper right corner of the panel indicates that the current user has read only access UNSAVED DATA When in the upper righ...

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Page 133: ...vement of devices on IP networks v It helps to control broadcast traffic v It provides extra security How VLANs ease change and movement With traditional IP networks network administrators spend much...

Page 134: ...ith other devices that support the 802 1Q standard In addition the switch supports GVRP a protocol that automates the registration of VLANs across networks The switch supports up to 32 user configured...

Page 135: ...later in this appendix GARP VLAN registration protocol GVRP The switch provides a feature that allows the automatic propagation of VLAN membership information across the network This feature is facili...

Page 136: ...y never join a VLAN by receiving and propagating GVRP PDUs Configuration examples The following section will discuss some common network configuration scenarios and how the switch should be configured...

Page 137: ...GVRP Likewise Station B registers its membership with VLAN 5 on Port 12 Note that this VLAN will be dynamic because the network administrator has not explicitly configured the VLAN on the switch Frame...

Page 138: ...ed or untagged because Station B is capable of handling both Frames from Station A arrive at Port 1 and are tagged with a VLAN ID equal to the PVID of Port 1 VLAN 5 The frames are then switched to Por...

Page 139: ...switch resources The 8275 416 always guarantees resources for all 32 ports in the Default VLAN VLAN 1 Up to 31 additional VLANs may be configured or registered with the switch with certain restriction...

Page 140: ...addition of feature modules does not increase the number of non Default VLAN port instances that can be supported by either the base ports or the two feature modules together However the addition of...

Page 141: ...7 APPLY command 113 ARP Cache 46 ARP Cache Menu 46 Authentication Failure trap condition 42 B base port numbers 49 baud rate 20 Baud rate default for 37 description of 37 value range 37 BootP 25 brack...

Page 142: ...47 DHCP Dynamic Host Configuration Protocol 25 down arrow 113 downloading code 76 downloading configuration file 76 downloading files to the switch 73 Dynamic Host Configuration Protocol DHCP 25 E En...

Page 143: ...nel user name 31 user password 31 login password 31 login sessions managing 71 LOGOUT command 113 Logout utility description of 72 use of 72 M MAC address type 26 MAC addresses 113 Main Menu Device Co...

Page 144: ...ummary statistics 61 port switching number of ports 6 packet processing rates 6 port VLAN ID 57 PREV MENU command 113 PREV PAGE command 113 Priority Spanning Tree Protocol default for 52 53 descriptio...

Page 145: ...Protocol STP 6 configuring for 52 defining Status 52 special keys Backspace 113 brackets angle 113 special keys continued brackets continued square 113 Cntl Tab 113 Delete 113 down arrow 113 End 113 E...

Page 146: ...LY 113 CLEAR CTRS 113 HELP 113 LOGOUT 113 MAIN MENU 113 NEXT PAGE 113 PREV MENU 113 PREV PAGE 113 REFRESH 113 terminal interface continued commands continued SEND STOP 113 UNSAVED DATA 113 configuring...

Page 147: ...lues 70 V virtual local area networks VLANs description of 2 VLAN resetting 58 VLAN configuration 53 VLAN current status 56 VLAN ID 55 VLAN index 54 VLAN management 53 VLAN name 55 VLAN participation...

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Page 149: ...ing up a frame includes FCS octets Client Any application that retrieves and displays data from probes or agents Collision The best estimate of the number of collisions on an Ethernet segment Communit...

Page 150: ...ress Does not include broadcast packets Multicasts are similar to broadcasts but have a more limited scope for example they may be directed to all bridges on a ring Oversize Packet An Ethernet packet...

Page 151: ...ng portion is used to represent host information Devices and routers use the mask to identify the subnet on which a probe resides System Descriptor A free form field on RMON devices used by vendors to...

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Page 153: ...his book is Very Satisfied Satisfied Neutral Dissatisfied Very Dissatisfied Accurate h h h h h Complete h h h h h Easy to find h h h h h Easy to understand h h h h h Well organized h h h h h Applicabl...

Page 154: ...M Corporation P O Box 12195 Research Triangle Park NC U S A 27709 9990 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...

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Page 156: ...0 recovered post consumer fiber Web sites 8275 416 Documentation http www ibm com networking support docs nsf 8275docs 8275 416 Software Updates http www ibm com networking support downloads 8275 8275...

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