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Chapter 1. Understanding SDSL and the Express L768

61203192L1-20

Express L768 User Manual

1-7

IPX Routing

Network routes and services are learned and advertised using Nov-
ell’s RIP and SAP.

Concurrent Routing And Bridging

The Express L768 can route IP and IPX as well as bridge non-IP/IPX
packets simultaneously. The PPP profile will by default negotiate PPP
network protocols to support the transmission and reception of IP,
IPX, and Bridge packets. If the PPP peer does not accept a protocol, the
Express L768 will fall back to any combination of routing and bridg-
ing.

Network Address Translation Mode

NAT is a special mode of operation in which the Express L768 obtains
a dynamically assigned IP address from the peer router (typically an
Internet Service Provider). This allows a network of computers to ap-
pear as a single IP address.

NAT is enabled if the layer two protocol is PPP and the PPP profile has
the IP parameter

NAT

set to

Yes

, or the layer two protocol is Frame Re-

lay and a DLCI mapping has the

IP Map/Nat

parameter set to

Yes

. The

network computer’s IP stack may use DHCP to request an IP address,
default gateway address, and domain name server addresses from the
Express L768.

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Содержание 1203192L1

Страница 1: ...ZRTGUU 98 5 5 4QWVGT1 TKFIG 2CTV 0WODGTU 34253 4 3 QEWOGPV 0WODGT 834253 4 3 42 RTKN 3...

Страница 2: ...demark of ADTRAN Inc Macintosh is a registered trademark of Apple Computer Inc Novell NetWare and Internetwork Packet Exchange IPX are regis tered trademarks of Novell Inc Windows is a registered trad...

Страница 3: ...operations or procedures that could affect the proper operation of this equipment advance notification and the opportunity to maintain uninter rupted service are given 3 If experiencing difficulty wi...

Страница 4: ...if not installed and used in accordance with the instruction manual may cause harmful interference to radio or TV reception The user is encouraged to try to correct the interfer ence by one or more of...

Страница 5: ...ts that all products meet Year 2000 specifica tions regardless or model or revision Information about ADTRAN s Year 2000 compliance program is available at the following Web Site www adtran com Produc...

Страница 6: ...d to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a si...

Страница 7: ...e of the total load to be connected to a telephone loop which is used by the device to prevent overloading The termination on a loop may consist of any combination of devices subject only to the re qu...

Страница 8: ...hen sink or laundry tub in a wet basement or near a swimming pool 2 Avoid using a telephone other than a cordless type dur ing an electrical storm There may be a remote risk of elec tric shock from li...

Страница 9: ...dging with the Express L768 1 6 Factory Default 1 6 Bridging 1 6 IP Routing 1 6 IPX Routing 1 7 Concurrent Routing And Bridging 1 7 Network Address Translation Mode 1 7 Front Panel 1 8 Indicators 1 8...

Страница 10: ...9 System Uptime 3 9 Date Time 3 9 Configuration WAN 3 10 WAN HDSL 3 10 HDSL Mode 3 10 HDSL Channel Rate 3 11 HDSL NEBEs 3 11 HDSL FEBEs 3 11 WAN L2 Protocol 3 11 Configuration IP 3 12 IP IP Address 3...

Страница 11: ...ge Mode 3 22 Bridge WAN IP Bridge 3 22 WAN IP Bridge Network 3 22 WAN IP Bridge Netmask 3 23 WAN IP Bridge Triggered 3 23 WAN IP Bridge Proxy ARP 3 23 Bridge WAN IPX Bridge 3 23 WAN IPX Bridge Network...

Страница 12: ...efines 3 33 Filter Defines IPX Filter Defines 3 34 Configuration Frame Relay 3 36 Frame Relay Maintenance Protocol 3 37 Frame Relay Polling Frequency 3 37 Frame Relay DLCI Mapping 3 37 DLCI Mapping Ac...

Страница 13: ...nagement Telnet Web 3 56 Telnet Web Server Access 3 56 Telnet Web User List 3 56 Management SNMP 3 58 SNMP Access 3 58 SNMP Communities 3 58 SNMP Traps 3 59 Management Maint Port 3 59 Maint Port Passw...

Страница 14: ...Status IPX Routes 3 67 IPX Routes Network 3 67 IPX Routes Gateway 3 67 IPX Routes Port 3 67 IPX Routes Use 3 67 IPX Routes Hops 3 67 IPX Routes Ticks 3 68 IPX Routes TTL 3 68 Status IPX Servers 3 68...

Страница 15: ...etwork Log Level 3 76 Network Log View 3 76 Network Log Clear 3 76 Utilities Menu 3 77 Utilities Ping 3 77 Utilities Telnet Client 3 78 Utilities Upgrade Menu 3 78 Upgrade Transfer Method 3 78 Upgrade...

Страница 16: ...User Manual 61203192L1 20 Table of Contents Appendix B Log Messages B 1 Appendix C SNMP C 1 Appendix D Connector Pinouts D 1 Appendix E Terminal Mode Commands E 1 Acronyms Acronyms 1 Glossary Glossary...

Страница 17: ...l Menu 3 3 Figure 3 2 Configuration System Info Screen 3 8 Figure 3 3 Configuration WAN Screen 3 10 Figure 3 4 Configuration IP Screen 3 12 Figure 3 5 Configuration IPX Screen 3 19 Figure 3 6 Configur...

Страница 18: ...xviii Express L768 User Manual 61203192L1 20 List of Figures...

Страница 19: ...61203192L1 20 Express L768 User Manual xix List of Tables Table D 1 IBM AT Style EIA 232 Interface D 1 Table D 2 RJ 45 HDSL BRI U D 1 Table D 3 10BaseT Ethernet D 2...

Страница 20: ...xx Express L768 User Manual 61203192L1 20 List of Tables...

Страница 21: ...wn the Control key and press R then press Enter to dis play the top menu 3 Using the arrow keys and Enter key to navigate the menu go to the Configuration WAN HDSL menu Enter the line mode as HTU C or...

Страница 22: ...Quick Startup Guide Quick Start 2 Express L768 User Manual 61203192L1 20...

Страница 23: ...conditioning or re peater installation SDSL offers higher bandwidth using the same two wires that are traditionally used for DDS and ISDN technology ADTRAN provides a full line of HDSL and SDSL produ...

Страница 24: ...ure 1 1 Express L768 Applications Single User to Corporate LAN Figure 1 2 Telecommuter Home Office Access to the corporate LAN Single device access User Datagram Protocol UDP broadcasts are relayed to...

Страница 25: ...me Port 768 Figure 1 3 Telecommuter Home Office Access to the corporate LAN Access to any other router within the Frame Relay Network User Datagram Protocol UDP broadcasts are relayed to corporate LAN...

Страница 26: ...1 4 Connects the small office or home office to the corporate LAN Routes IP and Internet Packet Exchange IPX traffic from multiple devices to the corporate LAN Bridges all non routed traffic e g Appl...

Страница 27: ...er using the Routing Information Protocol RIP for advertising and learn ing routes among other routers Static routes may also be entered into the routing table 3 IPX Router IPX routers and services ca...

Страница 28: ...ecause they are transported across the SDSL link at the MAC layer The Spanning Tree Algorithm can be used to guarantee a loop free topology MAC ad dresses are learned by each Express L768 to prevent n...

Страница 29: ...Express L768 will fall back to any combination of routing and bridg ing Network Address Translation Mode NAT is a special mode of operation in which the Express L768 obtains a dynamically assigned IP...

Страница 30: ...are two sets of switches on the back panel The TO HUB TO NIC switch allows the Express L768 to connect directly to a Network Interface Card NIC or a HUB without the need for special cabling TX RX Flas...

Страница 31: ...ated connection a nailed up connection or a private circuit Leased connection or leased line is used in this manual to represent these types of services Figure 1 6 Express L768 Rear Panel Configuratio...

Страница 32: ...nu items are ac cessible to the Telnet client See Security Levels on page 3 7 for more information on menu security levels Filters can be defined to prevent certain addresses or protocols from being t...

Страница 33: ...nesses continued to grow to the point that the telcos be gan offering T1 service directly to the public D4 channel banks began to be used for T1 in corporate network topographies for voice The ad vanc...

Страница 34: ...e use of repeaters Symmetric Digital Subscriber Loop SDSL is HDSL using only one pair This provides a maximum of 768 kbits sec which is half the rate of HDSL LOCAL AREA NETWORK CONNECTION The Express...

Страница 35: ...N 1 The terminal emulator can flow the Express L768 off using software flow control Hardware flow control is not used The opening menu the Main menu or top level menu is the access point to all other...

Страница 36: ...system See the section Status Menu on page 3 61 for detailed information on the available options TEST The Test menu can be used for performing diagnostic testing of the Express L768 See the section...

Страница 37: ...vailable through this pane are indicat ed by the and DATA symbols 3 Left Pane Lists available menus 4 Mode Describes current operating mode 5 Loop Status Displays current status of HDSL line 6 Rate St...

Страница 38: ...in the menu tree Figure 3 1 on page 3 3 shows the top menu level with the cursor on the Configuration submenu so the path display shows Express 768 Configuration Moving Around Press Tab or the right a...

Страница 39: ...avigation H Returns to the home screen J Jumps between two menu items Press J while on a menu item of interest and you will jump back to the main screen Go to another menu item of interest Press J and...

Страница 40: ...press C For example if the cursor is over an editable field only that item is copied If the cursor is over the index number of a list then all of the items in the row of the list are copied For exampl...

Страница 41: ...at menu item The Telnet session is assigned a security level set by the user Passwords can only be accessed as security level 0 The maintenance port is always at security level 0 The security levels a...

Страница 42: ...te security 3 Read security 5 Provides a user configurable text string for the name of the Express L768 This name can help distinguish between different installations You can enter up to 31 alpha nume...

Страница 43: ...lpha numer ic characters in this field including spaces and special characters such as an under bar Firmware Revision Read security 5 Displays the current firmware revision level of the Express L768 T...

Страница 44: ...ess L768 Figure 3 3 shows the WAN menu Figure 3 3 Configuration WAN Screen WAN HDSL Write security 2 Read security 5 Selects the mode the HDSL line is in HDSL Mode Write security 2 Read security 5 The...

Страница 45: ...ar End Block Errors FEBEs that have been detected by the HDSL circuitry on the other end of the link Con tinuous errors can indicate a line problem but a burst at one time is normal WAN L2 Protocol Wr...

Страница 46: ...his menu Figure 3 4 shows the IP menu Figure 3 4 Configuration IP Screen IP IP Address Write security 2 Read security 5 The IP address assigned to the Express L768 s Ethernet port is set here This add...

Страница 47: ...P routing table when set to Yes def and removes it if it was previously added if set to No Static Routes IP Address Write security 4 Read security 5 This is the IP address of the host or network addre...

Страница 48: ...set to On def the Express L768 will advertise and listen to routes from other IP routers If Off the route table is still used but only static routes are used for routing IP packets and only the Ether...

Страница 49: ...s to any device which transmits a broadcast DHCP re quest The addresses assigned are based on the Express L768 s own IP address and will be within the same network This mode is most com monly used wit...

Страница 50: ...single machine on the NAT side to be accessed from the Internet side of NAT This provides outside access to a web server mail or ftp server NAT Default IP This is the IP address used by the Express L...

Страница 51: ...mary address does not respond to the request IP UDP Relay The Express L768 can be configured as a relay agent for UDP broad cast packets Normally a router will not forward UDP broadcast packets Howeve...

Страница 52: ...makes use of this mapping feature by instructing a router to answer ARP re quests as a proxy for the IP addresses behind one of its ports The device which sent the ARP request will then correctly ass...

Страница 53: ...the IPX menu Figure 3 5 Configuration IPX Screen IPX Mode Write security 2 Read security 5 When this option is set to On def the Express L768 will route IPX Setting it to Off will disable all IPX fun...

Страница 54: ...Ethernet segment connected to this port and use this number if it exists If it does not discov er a number in use the Express L768 will use the configured IPX network number for the Ether net segment...

Страница 55: ...nformation about the services such as servers printers etc for which this Express L768 is responsible The default value is 60 seconds Configuration Bridge The Bridge menu is used to set up the bridge...

Страница 56: ...ess L768 will allow another WAN device to bridge IP packets to it using PPP BCP Normally two IP routers would negotiate PPP IPCP to exchange IP packets However if a device can only support PPP BCP IP...

Страница 57: ...e When IPX routing is active the Express L768 will allow another WAN device to bridge IPX packets to it using PPP BCP Normally two IPX routers would negotiate PPP IPXCP to exchange IPX packets How eve...

Страница 58: ...only IPX RIP and SAP updates are sent when the routing or service table has changed When set to No def updates are sent periodically Bridge Spanning Tree The Spanning Tree Algorithm and Protocol ensu...

Страница 59: ...The default is 200 20 0 sec onds Spanning Tree Hello Time Write security 2 Read security 5 This is the time between the generation of configuration BPDUs Bridging Protocol Data Units by the root brid...

Страница 60: ...ty 5 The priority adjusts the relative priority of the Ethernet port among the multiple bridge ports The range is 0 to 255 with a default of 128 Spanning Tree Bridge Group 1 The Bridge Group 1 is eith...

Страница 61: ...e security 2 Read security 5 This setup is exactly like Bridge Group 1 above Bridge Group 2 Path Cost Write security 2 Read security 5 This setup is exactly like Bridge Group 1 above Bridge Group 1 Pr...

Страница 62: ...licy Write security 3 Read security 5 When this parameter is set to Unknown def any bridge packet with a destination MAC address that is not in the bridge table is forwarded to all other ports When se...

Страница 63: ...rver sessions Radius Server Primary Server Write security 1 Read security 2 This is the IP address of the first RADIUS server that the Express L768 should attempt to communicate with when authenticati...

Страница 64: ...cate with the primary server is equal to the retry count the secondary server if defined is tried If the secondary server does not respond within the retry count the PPP peer or Telnet session is not...

Страница 65: ...list under the PPP profile or DLCI map See the sec tion DLCI Mapping Filters on page 3 43 for examples of how to set up filter profiles This menu is used to define the individual filter defines based...

Страница 66: ...32 pattern defines can be specified Name Identifies the filter entry Src Addr 48 bit MAC source address used for comparison hexadecimal format Src Mask Bits in the MAC source address which are com par...

Страница 67: ...the destination ad dress dotted decimal format Dest Mask Bits which are used in the destination compar ison dotted decimal format Src Port IP source port number used for comparison Range 0 to 65535 de...

Страница 68: ...is performed means protocols equal to not means protocols not equal to means protocols greater than means protocols less than None means the protocol is not compared TCP Est Yes only when TCP establis...

Страница 69: ...st Socket 16 bit value which is the destination sock et Range 0 65535 Dest Socket Comp Type of comparison that is performed means socket equal to Not means socket not equal to means socket greater tha...

Страница 70: ...r manent Virtual Circuits PVC and Switched Virtual Circuit SVC PVCs are like dedicated point to point private lines Since the physi cal connection is always there in the form of a leased line call set...

Страница 71: ...e The value is in seconds and rang es from 5 to 30 seconds with a default of 15 seconds Frame Relay DLCI Mapping This menu allows each DLCI to be mapped to a particular Frame Re lay maintenance protoc...

Страница 72: ...ault entry is not present the Express L768 falls back to using IARP as discussed in the previous paragraph to determine the protocols to use with that par ticular virtual circuit If a static maintenan...

Страница 73: ...of No means that no IP traffic or route will be exchanged IP Map IARP Write security 3 Read security 5 When this is set to Yes def the Express L768 will send Inverse ARP packets to determine the IP ad...

Страница 74: ...and the Express L768 responds to the Inverse ARP with its Ethernet IP ad dress IP Map RIP Protocol Write security 3 Read security 5 The RIP protocol can be specified per DLCI The possible selections a...

Страница 75: ...If more than one IP Map is configured for NAT the first PVC which is activated be comes the NAT port DLCI Mapping IPX Map This menu represents the IPX protocol mapping that is to take place for this...

Страница 76: ...s treated as unnumbered and the Express L768 responds to the Inverse ARP with its Ethernet IPX address DLCI Mapping Bridge Map This menu is used to permit bridging of packets over this DLCI Each DLCI...

Страница 77: ...1 define the types of packets that would be of interest in the Configuration Security Filter De fines menu and 2 set up the filter type and combination of defines that will cause a packet block Filter...

Страница 78: ...from the Configuration Security Filter Defines MAC Filter Defines list Pattern from the Configuration Security Filter Defines Pattern Filter Defines list IP from the Configuration Security Filter Def...

Страница 79: ...t arriving from the PVC is assumed to be for the Express L768 s IP stack The destination address in the packet is assigned as the PVC s link IP ad dress The source address is used to add a host route...

Страница 80: ...the au thentication of the PPP peer and for being authenticated by the PPP peer Authentication is applied between the Express L768 and the PPP peer as follows Authentication Tx Method Write security 2...

Страница 81: ...ity 1 Read security 3 This is the username used to authenticate the PPP peer Authentication Rx Password Write security 0 Read security 1 This is the password or secret that is used to authenticate the...

Страница 82: ...T In the Off def position the unit will route across the connection nor mally IP Route The IP parameters are configured in this menu UsuallytheExpressL768 will automatically discoverthe PPP peer s net...

Страница 83: ...xpress L768 performs RIP over the WAN connection when this is set to On def RIP Protocol Write security 3 Read security 5 The Express L768 performs version 1 V1 def or version 2 V2 of RIP on this WAN...

Страница 84: ...gotiate PPP IPXCP with the PPP peer for exchanging of IPX packets IPX Remote Network Write security 3 Read security 5 A non zero value in this remote network number will allow the Ex press L768 to add...

Страница 85: ...casts it across all interfaces except the one it is received on and includes the network number of that interface in the data portion of the packet The IPX Router Specification from Novell notes that...

Страница 86: ...ISDN connections and can be set to Off def to disable it PPP Max Config Write security 3 Read security 5 This value is the number of unanswered configuration requests that should be transmitted befor...

Страница 87: ...menu and 2 set up the filter type and combination of defines that will cause a packet block Filters WAN to LAN In Write security 2 Read security 5 The packets which come into the Express L768 can be...

Страница 88: ...from the Configuration Security Filter Defines MAC Filter Defines list Pattern from the Configuration Security Filter Defines Pattern Filter Defines list IP from the Configuration Security Filter Def...

Страница 89: ...t Exceptions Write security 2 Read security 5 This is a list of up to 32 filter entries The setup is exactly the same as the Filter In Exceptions list Disabled def Turns off packet output filtering No...

Страница 90: ...t menu Figure 3 10 Configuration Management Screen Management Telnet Web Any Telnet client application can bring up a session to the Express L768 s Telnet server using the standard Telnet TCP port Onl...

Страница 91: ...ty 1 Read security 3 When set to non zero the session is automatically logged out when no activity occurs for this amount of time The range is 0 to 255 and is in minutes The default is 10 minutes and...

Страница 92: ...set to On def the Ex press L768 will respond to SNMP managers based on the following lists SNMP Communities This list is used to set up to eight SNMP communities names that the Express L768 will allo...

Страница 93: ...name of the entry It is intended for easy reference and has no bearing on the SNMP trap function Traps Manager IP Write security 2 Read security 4 This is the IP address of the manager that is to rec...

Страница 94: ...security 5 This is the asynchronous parity that the maintenance port will run The possible values are None def Odd or Even Maint Port Stop Bits Write security 5 Read security 5 This is the stop bit u...

Страница 95: ...nus are divided into protocol types and ses sions Figure 3 11 shows the Status menu Figure 3 11 Status Screen Status Sessions This menu contains the current status of all sessions and spanning tree po...

Страница 96: ...ytes Number of bytes received Tx Rate Current application data transmission rate Rx Rate Current application data reception rate Port Index Always displays 0 Signal State Displays up when the Express...

Страница 97: ...it is fully active Off means the circuit has been turned off by the DLCI mapping active selection Tx Frames Number of Frame Relay packets that have been transmitted via this DLCI Rx Frames Number of F...

Страница 98: ...Throughput Current receive rate of this DLCI De Count Number of packets received on this DLCI with the De bit set Cr Count Number of packets received on this DLCI with the Cr bit set Becn Count Numbe...

Страница 99: ...Table Read security 5 This lists the contents of the Express L768 s bridge table Bridge Cache MAC Address Ethernet address for device learned Bridge Cache Port Port device learned from LAN WAN0 or WAN...

Страница 100: ...with this route entry IP Routes Hops Number of routers that must go through to get to destination Ranges from 0 15 or 16 for infinite can t get there from here local sent directly to the Express L768...

Страница 101: ...estination address IPX Routes Gateway Node or Ethernet address of gateway to receive this packet IPX Routes Port Port gateway is located on IPX Routes Use Number of times the Express L768 has referenc...

Страница 102: ...til address is removed from table Value of 999 means route is static Status IPX Servers Read security 5 This lists the contents of the Express L768 s IPX server table IPX Servers Type The server type...

Страница 103: ...received in HDLC port 1 Rx CRCs total number of CRC errors detected on HDLC port 1 Clear Counts When activated clears all WAN stat counts Tx Packets Packets transmitted out the Ethernet port Rx Packet...

Страница 104: ...ved that were greater than 1518 bytes Runts total packets received that were less than 64 bytes Rx Collisions total collision occurred during reception Clear Counts When activated clears all LAN Stat...

Страница 105: ...ures IP reassembly timeout No application at dest port Routeless discards Sent datagrams to upper layers Successful fragments TCP current connections TCP failed attempts TCP passive connections TCP se...

Страница 106: ...Request Write security 4 Read security 5 When activated the echo request test will begin sending continuous PPP echo request packets to any open LCP ports Results are dis played on the screen This is...

Страница 107: ...way of a log level The lev els are divided up as follows Figure 3 13 shows the Logs menu The three logs available are listed af ter the figure Figure 3 13 Logs Screen Logs Sys log Host Set this to the...

Страница 108: ...s full All logging will stop when the log is full and set to No PPP Log Level In order to log events they must be at or below this level Range is 0 to 6 The default is 3 PPP Log View This menu display...

Страница 109: ...vents they must be at or below this level Range is 0 to 6 The default is 3 Connection Log View This menu displays the log list The fields are as follows Connection Log Clear This clears the log when a...

Страница 110: ...et to No Network Log Level To log events they must be at or below this level Range is 0 to 6 The default is 3 Network Log View This menu displays the log list The fields are as follows Network Log Cle...

Страница 111: ...ead security 5 The ping menu is used to send ICMP ping messages to hosts The fol lowing items are under this menu Start Stop Activator to start and cancel a ping test Host Address IP address or domain...

Страница 112: ...the upgrade code from the TFTP server Selecting XMODEM will load the upgrade code through the maintenance port using any PC terminal emulator with xmodem capability Upgrade TFTP Host This is required...

Страница 113: ...equest from TFTP clients Utilities Exit Write security 5 Read security 5 Activating this feature will exit the terminal session from the mainte nance port or Telnet It is equivalent to the key combina...

Страница 114: ...Chapter 3 Terminal Menu Operation and Structure 3 80 Express L768 User Manual 61203192L1 20...

Страница 115: ...J 45 for HDSL two wire service Signal Format 2B1Q Max distance per loop 9000 feet at 26 AWG Ethernet Interface LAN Ethernet IEEE 802 3 10BaseT Display Available through terminal interface or Telnet se...

Страница 116: ...Chapter 4 Specifications 4 2 Express L768 User Manual 61203192L1 20...

Страница 117: ...layer 1 is up The rate is de termined by what it is configured for under Configuration WAN HDSL Rate Echo Tx X Rx Y The current transmit and receive count for the PPP echo request test Layer 1 up The...

Страница 118: ...Appendix A Loop Status Messages A 2 Express L768 User Manual 61203192L1 20 Rate Status Messages Displays the rate at which the connection has been established...

Страница 119: ...5 Bridge Control Protocol port X has been dropped between Express L768 and PPP peer BCP X up level 5 Bridge Control Protocol port X has been successfully negotiated be tween Express L768 and PPP peer...

Страница 120: ...el 3 The PPP peer has rejected the Express L768 s username and or pass word used for authenticating Check to make sure the Configuration Connection List Authentication parameters Tx Method Tx User nam...

Страница 121: ...s L768 and PPP peer LCP X up level 5 Link Control Protocol port X has been successfully negotiated be tween Express L768 and PPP peer Link is looped back level 3 The Express L768 has dialed a location...

Страница 122: ...ticating Check to make sure the Configuration Connection List Authentication parameters Tx Method Tx User name and Tx Password are correct Peer failed CHAP authen level 3 The PPP peer s reported CHAP...

Страница 123: ...ct username and or password Make sure the Configuration Connection List Authentication parameters Rx Username and Rx Password are correctly entered Also if using RA DIUS check that the server is confi...

Страница 124: ...ternal er rors Possible reasons are Bus Error Bad address occurred on the internal bus Kernel error General operating system error No SBCs Mail resources used up or lost Router stack error Fatal error...

Страница 125: ...erface number in ter DHCP couldn t alloc mem level 1 A DHCP response could not be generated due to memory allocation problems DHCP response sent level 4 A DHCP response was successfully sent to reques...

Страница 126: ...src srcip dest destip level 4 The Express L768 has dropped a source routed IP packet due to in valid parameters setmask local IP iface 0 not done level 6 Debug error used in determining router stack...

Страница 127: ...client could not initialize a session Telnet Client Clr TCBF_BUFFER flag failed level 6 Debugging message related to Telnet client function Telnet Client Set TCBF_DONTBLOCK flag failed level 6 Debugg...

Страница 128: ...level 2 Telnet server could not open TCP socket to incoming Telnet client TELNETD Set TCPC_LISTENQ failed level 6 Debugging message related to Telnet server function TELNETD Clr TCBF_BUFFER flag fail...

Страница 129: ...ted due to TCP socket error TFTP can t get to host level 2 TFTP client could not get to host TFTP client unable to open port level 2 TFTP client function could not open a UDP port TFTP error rcvd mess...

Страница 130: ...Appendix B Log Messages B 12 Express L768 User Manual 61203192L1 20...

Страница 131: ...ents Network Manager This is a control program that collects controls and presents data pertinent to the operation of the network devices It resides on a network management station Agent This is a con...

Страница 132: ...Request This command retrieves the next item in a series from a network device SetRequest This command writes information to a network device The network device issues two types of messages GetRespons...

Страница 133: ...requests are supported Get object Get next object Set object Communities The Express L768 permits up to eight communities to be defined The privilege level of each community can be set The default co...

Страница 134: ...Appendix C SNMP C 4 Express L768 User Manual 61203192L1 20...

Страница 135: ...U Pin Name I O Description 1 CD N C Carrier Detect 2 RD O Receive Data 3 TD I Transmit Data 4 DTR N C Data Terminal Ready 5 GND N A Signal Ground 6 DSR N C Data Set Ready 7 RTS I Request to Send 8 CTS...

Страница 136: ...192L1 20 Table D 3 10BaseT Ethernet Switch Position Pin TO NIC TO HUB 1 TX1 RX1 2 TX2 RX2 3 RX1 TX1 6 RX2 TX2 The switch position can be set for either TO NIC or TO HUB on the back panel of the Expres...

Страница 137: ...face Terminal commands are as follows top_menu sub_menu1 sub_menu2 config_item Each config_item is entered as shown below TYPE ENTERED AS string printable characters within double quotes password prin...

Страница 138: ...urity Configuration Security menu ppp Configuration PPP Profile menu telnet Configuration Management Telnet menu snmp Configuration Management SNMP menu maint Configuration Management Maint menu statu...

Страница 139: ...L768 in terminal mode A baud rate of 9600 is strongly recommended when uploading As soon as the upload has been com pleted type save to save the new configuration to flash A reset com mand or power cy...

Страница 140: ...Appendix E Terminal Mode Commands E 4 Express L768 User Manual 61203192L1 20...

Страница 141: ...ol BPDU Bridging Protocol Data Unit bps Bits per second Bps Bytes per second BRI Basic Rate Interface CA Call Appearance CCP Compression Control Protocol CCITT Consultative Committee for International...

Страница 142: ...Force I O Input Output IP Internet Protocol IPCP Internet Protocol Control Protocol IPX Internetwork Packet Exchange I2L Integrated Injected Logic IEC Inter Exchange Carrier ISDN Integrated Services...

Страница 143: ...one Service PPP Point to Point Protocol PRI Primary Rate Interface RFC Request For Comments RIP Routing Information Packet Routing Information Protocol RTMF Routing Table Maintenance Protocol SAP Serv...

Страница 144: ...Acronyms Acronyms 4 Express L768 User Manual 61203192L1 20...

Страница 145: ...rotocol Allows a node on an AppleTalk network to send a packet to another node and in return receive an echoed copy of the packet B Channel 64 kbps bearer channel used for voice circuit or packet swit...

Страница 146: ...local telephone number Usually the facilities of the local BOC CSMA CD Carrier Sense Multiple Access Collision Detect A channel access mechanism where devices check the channel for a carrier before tr...

Страница 147: ...stations a terminals servers etc within the same building or cam pus Ethernet operates over twisted wire and coaxial cable at speeds up to 10 Mbps Ethernet specifies a CSMA CD four wire circuits Tele...

Страница 148: ...s network LAN with a CSMA CD access method on a bus topology Ethernet follows the 802 3 standard transmitting at 10 megabits per second This is the most common local area network specification Physica...

Страница 149: ...ing messages Used in gateways to connect networks at OSI network Lev el 3 and above IPX Internetwork Packet Exchange A Novell NetWare protocol used to move information across networks ISDN Integrated...

Страница 150: ...traLATA are generally the sole responsibility of the local telephone company while circuits that cross outside the LATA interLATA are passed on to an interexchange carrier loopback A diagnostic proce...

Страница 151: ...31 netmask A 32 bit bit mask which shows how an Internet address is to be divid ed into network subnet and host parts The netmask has ones in the bit positions in the 32 bit address which are to be us...

Страница 152: ...te metric which to other routers means the network for the route is inaccessible PRA Primary Rate Access Connects high capacity CPE such as PBXs to the network In the US this is composed of twenty thr...

Страница 153: ...atagrams from any source socket to any destination socket in the internet Using RTMP internet routers dynamically maintain routing tables to reflect changes in internet to pology service advertising p...

Страница 154: ...master clock 2 A method of data transmission requiring the transmission of timing pulses to keep the sender and receiver synchronized in their commu nication used to send blocks of information Synchro...

Страница 155: ...a single cable Twisted pair is the normal cabling from a central office to your home or office or from your PBX to your office phone Twisted pair wiring comes in various thicknesses As a general rule...

Страница 156: ...ir cuits those coming from a Class 5 central office to the subscriber s phone system are 2 wire unless a 4 wire circuit is requested U interface A twisted pair subscriber loop that connects the NT1 re...

Страница 157: ...dge group 1 active 3 26 bridge group 1 path cost 3 26 bridge group 1 priority 3 27 bridge group 2 active 3 27 bridge group 2 path cost 3 27 bridge group 2 priority 3 27 bridge map active 3 42 bridge m...

Страница 158: ...HCP mode 3 15 display 4 1 DLCI mapping 3 37 DLCI mapping active 3 38 DLCI mapping bridge map 3 42 DLCI mapping DLCI 3 39 DLCI mapping filters 3 43 DLCI mapping IP map 3 39 DLCI mapping IPX map 3 41 DL...

Страница 159: ...ck Start 1 HDSL channel rate 3 11 HDSL FEBEs 3 11 HDSL mode 3 10 HDSL NEBEs 3 11 hello time 3 25 I indicators 1 8 installation 2 1 interface Ethernet 4 1 network 4 1 IP filter defines 3 33 IP map acti...

Страница 160: ...baud rate 3 60 maint port data bits 3 60 maint port parity 3 60 maint port password 3 59 maint port password protect 3 59 maint port stop bits 3 60 maintenance DLCI 3 45 maintenance port 3 59 maintena...

Страница 161: ...3 50 PPP profile PPP 3 52 PPP max config 3 52 PPP max failure 3 52 PPP max timer 3 52 PPP VJ compression 3 52 proxy ARP 3 18 Q quick startup guide Quick Start 1 R radius 3 57 radius server 3 29 radius...

Страница 162: ...panning tree priority 3 25 specifications 4 1 environmental 4 1 physical 4 1 power 4 1 split horizon 3 15 3 49 static routes active 3 13 static routes gateway 3 13 static routes hops 3 13 static route...

Страница 163: ...transfer 3 79 upgrade status 3 79 upgrade TFTP host 3 78 upgrade TFTP server 3 79 upgrade transfer method 3 78 user list 3 56 user list authen method 3 57 user list idle time 3 57 user list level 3 5...

Страница 164: ...61203192L1 20 Express L768 User Manual Index 8 Index...

Страница 165: ...repair is needed Technical Support will coordinate with theCustomer and Product Ser vice CaPS department to issue an RMA number For information re garding equipment currently in house or possible fees...

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