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Diagnostics and Troubleshooting

 6-12

8000-A2-GB26-10

January 1999

Client Cannot Reach IPC

This section examines the DSLAM-to-IPC segment of the network.

NOTE:

On the IPC, verify that there is a MAC address for the client (enter the
macinfo command). If the correct MAC address appears on the IPC, and all
the items in the previous sections have been examined, it is safe to assume
that this segment of the network is functioning properly. Skip this section and
go to 

Client Cannot Reach Router

 on page 6-14. If a MAC address does not

appear, check the items in 

Table 6-6

.

99-16174-01

O OII

Next Hop

Router

(NHR)

DSLAM

Clients

NMS

WAN

Hub

SN

SN

ISP

IPC

WAN

DSLAM-to-IPC

Segment

NMS

ISP

Gateway

Router

Содержание 8310 MVLt

Страница 1: ...HOTWIRE DSLAM FOR 8310 MVL AND 8510 RADSL CARDS USER S GUIDE Document No 8000 A2 GB26 10 January 1999 ...

Страница 2: ...ales and Service Information Contact your local sales representative service representative or distributor directly for any help needed For additional information concerning warranty sales service repair installation documentation training distributor locations or Paradyne worldwide office locations use one of the following methods H Via the Internet Visit the Paradyne World Wide Web site at http ...

Страница 3: ...H Hotwire DSLAM Features 1 5 H Levels of Access 1 6 H Software Functionality 1 6 Configuring the DSL Cards 1 6 Monitoring the DSL Cards 1 7 Troubleshooting and Diagnostics 1 8 2 Hotwire Menus and Screens H Overview 2 1 H Menu and Screen Formats 2 2 Components of a Hotwire Menu 2 2 Components of a Hotwire Screen 2 3 H Commonly Used Navigation Keys 2 4 H Hotwire Menu Hierarchy 2 5 Hotwire Chassis Ma...

Страница 4: ...SL Cards 3 2 Configuring VNID s on a DSL Card 3 3 Configuring the Active VNID on each DSL Port 3 4 Configuring Static Users 3 5 Configuring Addresses with DHCP 3 5 Configuring Subnet Masks 3 6 Configuring Subnet Addressing 3 6 Configuring IP Filter Rules 3 7 4 8310 MVL and 8510 RADSL Card Configuration H Overview 4 1 H DSL Configuration Card Status Screens 4 1 H DSL Configuration Ports Screens 4 5...

Страница 5: ...H Diagnostic Screens 6 1 H Troubleshooting 6 3 Checking Alarms 6 3 No Response at Startup 6 3 Major Alarms 6 3 Minor Alarms 6 5 H Network Problems 6 7 High Level Troubleshooting 6 7 Client Cannot Ping the Gateway Router 6 8 Client Cannot Reach Service Node 6 9 Client Cannot Reach DSLAM 6 10 Client Cannot Reach IPC 6 12 Client Cannot Reach Router 6 14 Cannot Upload Configurations to a UNIX Server 6...

Страница 6: ...Contents iv 8000 A2 GB26 10 January 1999 This page intentionally left blank ...

Страница 7: ... Systems NMSs and the following internetworking concepts H TCP IP applications H IP and subnet addressing H IP forwarding also referred to as IP routing H Bridging It is also assumed that you have already installed either the Hotwire 8600 8800 or 8810 DSLAM If you have not done so already refer to the appropriate Hotwire DSLAM Installation Guide for installation instructions NOTE It is highly reco...

Страница 8: ...g the Hotwire system Chapter 4 8310 MVL and 8510 RADSL Card Configuration Describes the optional procedures for configuring the DSL cards on the Hotwire system Chapter 5 Monitoring the Hotwire DSLAM Describes operator programs that monitor the Hotwire system Chapter 6 Diagnostics and Troubleshooting Describes common Hotwire operational problems and solutions Appendix A Download Code Describes how ...

Страница 9: ...uctions 8000 A2 GB22 Hotwire Management Communications Controller MCC Card IP Conservative User s Guide 8000 A2 GB27 Hotwire DSLAM for 8310 MVL and 8510 RADSL Cards Network Configuration Guide 8000 A2 GB90 Hotwire 8100 8200 Internetworking Packet Concentrator IPC User s Guide 8000 A2 GZ40 Hotwire MCC Card IP Conservative Installation Instructions 8310 A2 GZ40 Hotwire 8310 MVL Card Installation Ins...

Страница 10: ...About This Guide viii 8000 A2 GB26 10 January 1999 ...

Страница 11: ... modem H The 8510 RADSL card interoperates with the Hotwire 5620 RTU Remote Termination Unit The DSLAM is a set of central site products that terminate and consolidate packet data traffic from many customers in a serving area It then forwards the traffic to one or more network access provider networks High speed Internet and intranet access is bridged on the Layer 2 port cards and multiplexed over...

Страница 12: ... Packet Concentrator DSL CARD DSLAM Central Office CO 98 15974 Customer Premises CP Ethernet SN CP POTS Splitter CO POTS Splitter MDF POTS DSL Hotwire IPC Voice Interface Data Interface POTS Network Service Provider Optional Optional CO Switch Hotwire DSLAM Components The minimum hardware requirements for a Hotwire DSLAM system consists of the following components H One Hotwire 8600 8800 or 8810 D...

Страница 13: ... ALM A IN B DC FUSES T4A MIN 48V 5 PWR FAN OUT SERIAL MCC 1 MANAGEMENT 3 LINE 1 2 3 S Y S T E M O K A lr m T e s t T X R X C o l E T H E R N E T MCC 8000 S Y S T E M O K A lr m T e s t T X R X C o l 1 2 3 4 E T H E R N E T D S L P O R T RADSL 8546 S Y S T E M O K A lr m T e s t T X R X C o l 1 2 3 4 E T H E R N E T D S L P O R T RADSL 8546 98 15350 02 ESD In a stacked configuration the first or ba...

Страница 14: ...er alarm cooling and interface subsystems is designed to house up to 18 DSL cards and one MCC card The remaining slot is reserved for the future use of a redundant MCC card For more information see the Hotwire 8810 Digital Subscriber Line Access Multiplexer DSLAM Installation Guide ALARMS Major Minor Fan B A POWER MCC SYSTEM OK Alm Test ETHERNET TX RX Coll 99 15280 04 MGT SERIAL MGT 10BT ALARM SLO...

Страница 15: ...circuit card that contains four RADSL or MVL ports an Ethernet interface to the Internet Service Provider ISP and a processor packet forwarder The processor packet forwarder controls the endpoints and forwards the packet traffic via the Ethernet and RADSL or MVL interfaces When the 8600 DSLAM chassis is fully populated with 5 expansion chassis it provides a total of 68 RADSL or MVL modem ports Whe...

Страница 16: ...ification permission Software Functionality Depending upon your system access you can H Configure the system H Monitor the system and or H Run applications and diagnostic tests to troubleshoot the network Configuring the DSL Cards The Hotwire DSLAM software provides DSL configuration options to H Configure the DSL cards H Configure the interfaces and ports H Set up user accounts H Upload or downlo...

Страница 17: ...ber UDP statistics TCP data and connection statistics IP statistics ICMP packet statistics and SNMP statistics including SNMP authentication statistics H Display information about the Client ARP and VNIDs H Display endpoint information about DSL Ports 1 4 such as Service Node type system name system contact and system location Model and serial number along with firmware and hardware revisions are ...

Страница 18: ...ect SN ports H Run a nondisruptive packet echo test over the DSL line NOTE You must have Administrator permission to perform most of the troubleshooting and diagnostic activities However you can run nondisruptive tests as a user with Operator permission For more information about troubleshooting and diagnostics see Chapter 6 Diagnostics and Troubleshooting NOTE If you would like more information o...

Страница 19: ...e DSLAM has a menu and screen driven user interface system that enables the user to configure and monitor the Hotwire cards This chapter contains H Menu and Screen Formats H Commonly Used Navigation Keys H Hotwire Menu Hierarchy H Logging In to the System H Exiting from the System ...

Страница 20: ...he menu window that displays the list of menu options When selected a menu option displays a submenu window or screen 3 Letter Navigation Keys are provided within a menu list These keys provide a convenient way shortcut to select a menu item For example from the Hotwire DSL menu illustrated above you can simply press the A key to select the Configuration menu item The Configuration menu appears Yo...

Страница 21: ...in is the login account of the user currently accessing the system For example if a user with a login account called admin logs into the system this field will display R admin 2 Display Area is the top portion of the screen on which pertinent DSLAM system information is displayed This is also the portion of the screen on which fields requiring input are displayed However you cannot enter values fo...

Страница 22: ...een Ctrl r Resets counters on monitoring statistics displays Ctrl u Clears the current input or prompt line Ctrl v Displays pop up menus Esc h Displays the online Help screen Esc l Ctrl l Refreshes the screen Esc n Goes to the next window Esc p Ctrl z Goes back to the previous window Esc t Ctrl a Ctrl c Ctrl t or Ctrl y Goes back to the original top level window Left arrow Ctrl b Moves the cursor ...

Страница 23: ... to select a particular card in the chassis This screen also displays status information about all cards in the chassis The card you select determines which Hotwire menu the system will display next Hotwire DSL menu For more information see Card Selection Screen on page 2 10 H C Logout to exit from the current login session on the Hotwire DSLAM For more information see Exiting from the System on p...

Страница 24: ... Monitoring Menu See Configuration Menu Hotwire DSL A Configuration B Monitoring C Applications D Diagnostics E Exit 98 15975 Applications Function not Supported Diagnostics A Selftest B Alarms C Packet Echo D SN Selftest The Configuration menu item appears only if you have Administrator permission From this menu you can configure monitor run applications and troubleshoot a specific DSL card ...

Страница 25: ...de A Download Code B Apply Download C Interfaces A General B Control B Ports A Ethernet Port B DSL Ports A Card Status A Card Info B Time Date C NVRAM Clear D NVRAM Cfg Loader E Card Reset F Download Code G Filters A IP Filters D Users Function Not Supported E Bridge A General B Card VNID C Port VNID D Client VNID E ARP E ARP A Parameters B ARP Entry F SN Configuration NOTE The Configuration menu ...

Страница 26: ...Socket Statistics B UDP Statistics C TCP Statistics D IP Statistics E ICMP Statistics F SNMP Statistics E Bridge A Bridge Table B MAC Table C Client D VNID E ARP Table 98 15900 01 B Monitoring A Card Status B Physical Layer C Interfaces D Network Protocol E Bridge F SN Information G Filters F SN Information G Filters A IP Filters Logging In to the System This section describes how to log in to the...

Страница 27: ...s To provide login security to the DSLAM user accounts must be configured NOTE There must be at least one Administrator configured in order to have system security For information on configuring user accounts see the Hotwire Management Communications Controller MCC Card IP Conservative User s Guide User Login Screen You can log in to the Hotwire DSLAM system using either a local VT100 compatible t...

Страница 28: ... lowercase letters the system will not let you log in After entering your login ID and password the system displays the Hotwire Chassis Main Menu Card Selection Screen From the Hotwire Chassis Main Menu select Card Selection to display the status of any of the 18 DSL cards installed in the chassis by type and slot number The Card Selection screen also displays general and interface status for each...

Страница 29: ...alarm present on card or _ for no minor alarm active Eth 4 U D or X Status of Ethernet link U Up D Down X Disabled DSL Lnk 5 6 7 8 U D X or H Status of DSL card Port 1 4 link U Up D Down X Disabled or H Handshaking WAN Lnk For future Use For example if you select DSL card in Slot 1 the following may be displayed 1 8510 _ M _ D U X X X Position 1 2 3 4 5 6 7 8 This display shows the following H The...

Страница 30: ...r example if you want to configure the DSL card in Slot 13 type 13 The Hotwire DSL menu appears Exiting from the System You can manually log out of the system or after five minutes of inactivity the system will automatically log you out Manually Logging Out Procedure To exit from the Hotwire DSLAM system 1 Return to the Card Selection screen by selecting Exit from either the Hotwire MCC menu or th...

Страница 31: ...d performance Service Domain The service or data domain is comprised of all clients and servers grouped physically or virtually that communicate across a common WAN or LAN connection for internet access This is the Layer 2 bridging domain of the NSP The Access Node cards and the Service Nodes are the Hotwire components of this domain The service domain encompasses an NSP and all end user systems t...

Страница 32: ...VL and 8510 RADSL Cards Network Configuration Guide To configure the MCC card refer to the Hotwire Management Communications Controller MCC Card IP Conservative User s Guide The following table lists optional steps to configure the VNID for the DSL card For each DSL card to See 1 Configure VNID s on a RADSL or MVL card Configuring VNID s on a DSL Card page 3 3 2 Select the active VNID on each RADS...

Страница 33: ... prompt in the Mux Fwd field Default enabled 5 Enter disabled at the Enabled Disabled prompt in the IP Filter field Default disabled 6 Enter enabled at the Enabled Disabled prompt in the IP Scoping field Default enabled 7 If desired enter an ISP domain name at the Domain Name prompt Example If entering a VNID for XYZ Company enter XYZ as the Domain Name 8 Enter yes at the yes no prompt to save you...

Страница 34: ...uration Bridge Port VNID A E C 2 Enter the port number at the DSL Port prompt 3 Enter a to activate at the Action Edit Activate Deactivate prompt 4 Enter the number of the VNID to be assigned to this port at the Input Number prompt If you want a VNID that spans several RADSL or MVL cards you must specify the same VNID number across all cards Activate each port separately 5 Press Ctrl z and save th...

Страница 35: ... Table 4 4 Bridge Options in Chapter 4 8310 MVL and 8510 RADSL Card Configuration For information on configuring dynamic users see Service Domain in the Hotwire DSLAM for 8310 MVL and 8510 RADSL Cards Network Configuration Guide Addressing a Location Using DHCP When IP Scoping is enabled DHCP scoping is also enabled The DSLAM intercepts IP ARP and DHCP transaction messages H DHCP clients in one VN...

Страница 36: ...lt subnet mask is displayed The default subnet mask is based on the IP address entered and can be changed If the IP Address entered is Then the Default Subnet Mask is xxx xxx xxx 0 255 255 255 0 xxx xxx 0 0 255 255 0 0 xxx 0 0 0 255 0 0 0 xxx xxx xxx xxx 255 255 255 255 To configure the DSL card a valid subnet must be used When a Host entry is input any valid IP address results in a subnet mask of...

Страница 37: ...scarded based on the conditions specified in the rule 3 Bind the filter to the interface using the General Interfaces screen A C A This is an example of data contained in the IP Filter Table An inbound filter acts on packets in the upstream direction from the client to the NSP server An outbound filter acts on packets in the downstream direction from the NSP server to the client To configure the I...

Страница 38: ...Configuring the Hotwire DSLAM 3 8 8000 A2 GB26 10 January 1999 This page intentionally left blank ...

Страница 39: ... DSL card Use these options to customize your applications For information on customizing the MCC card see the Hotwire Management Communications Controller MCC Card IP Conservative User s Guide DSL Configuration Card Status Screens Use the system information submenu of the Card Status screens to configure basic DSL card level information ...

Страница 40: ...ocation 16 alphanumeric characters Location assigned to the card Local Control Terminal Port Mode Standard Extended Default Standard Standard is for USA keyboards Extended is for European keyboards Remote Control Terminal Port Mode Standard Extended Default Standard Standard is for USA keyboards Extended is for European keyboards Time Date A A B Gives the user the ability to view the time zone loc...

Страница 41: ...your system administrator to plan the naming conventions for directories file names and permissions so that anyone using the system has read and write permissions This is a UNIX system security feature NOTE This must be done before you can upload files to a UNIX server TFTP Server IP Address Address in nnn nnn nnn nnn format This address must be in the management domain TFTP Transfer Direction Upl...

Страница 42: ...by DOS TFTP Server IP Address Address in nnn nnn nnn nnn format This address must be in the management domain Start Transfer Yes No Default No Packets Sent Number of packets sent in download Packets Received Number of packets received in download Bytes Sent Number of bytes sent in download Bytes Received Number of bytes received in download Transfer Status Status of the download transfer Once the ...

Страница 43: ...election sequence Configuration Ports A B 2 The Ports menu appears Enter the desired value on each selected screen and field as shown in Table 4 2 and press Enter Table 4 2 Ports Options 1 of 3 Ethernet Port A B A Gives the user the ability to select full or half duplex on the Ethernet Port Port Name Enter the port name up to 7 characters Full Duplex Enable Disable Default Disable Function Edit Re...

Страница 44: ...t exceed the maximum speed and traps are sent when the links drop below the minimum as the transmission characteristics of the loop change SN Type Model number of endpoint For Model 8510 RADSL Card SN type is 5620 This field is read only Fixed Down Speed 7168 6272 5120 4480 3200 2688 2560 2240 1920 1600 1280 1024 960 896 768 640 512 384 256 Default 2560 kbps Fixed Up Speed 1088 952 816 680 544 408...

Страница 45: ...ptive mode the rates will vary between the minimum and maximum speeds as the transmission characteristics of the loop change Max Speed 768 704 640 576 512 448 384 320 256 192 128 kbps Default 768 SN Type Model number of endpoint For Model 8310 MVL Card SN type is 6310 This field is read only Margin Threshold Sends a trap message if the margin on either end falls below the selected value Enter a va...

Страница 46: ...gure basic interface information Procedure To view DSL card information configure Maximum Transmission Unit MTU settings bind filters to DSL interfaces or restart stop or monitor an interface 1 Follow this menu selection sequence Configuration Interfaces A C 2 The Interfaces menu appears Enter the desired value on each selected screen and field as shown in Table 4 3 and press Enter ...

Страница 47: ...ith a maximum of 12 characters This field appears only if the DSL interface selected is s1c s1f To view a list of configured inbound filters press Ctrl v NOTE An inbound filter acts on packets in the upstream direction from the client to the NSP server Outbound Filter Name Enter the filter name with a maximum of 12 characters This field appears only if the DSL interface selected is s1c s1f To view...

Страница 48: ...essions directly to the DSL cards This menu item is not currently supported on this card DSL Configuration Bridge Screens Use the system information submenu of the Bridge screens to configure bridging information Procedure 1 Follow this menu selection sequence Configuration Bridge A E 2 The Bridge menu appears Enter the desired value on each selected screen and field as shown in Table 4 4 and pres...

Страница 49: ...ter Enable Disable Default Disable H When IP filtering is enabled the DSLAM looks at IP traffic from the subscriber to authenticate the source IP address H When IP filtering is disabled no source authentication check is performed IP Scoping Enable Disable Default Enable H When IP Scoping is enabled DHCP scoping is also enabled and the DSLAM intercepts IP ARP and DHCP transaction messages H When IP...

Страница 50: ...o Configuring Subnet Masks in Chapter 3 Configuring the Hotwire DSLAM Subnet Mask For multiple users with IP addresses in the same subnet enter both the IP address and the subnet mask in nnn nnn nnn nnn format CAUTION The same subnet cannot be assigned to multiple ports An error message will appear if the IP address of the next hop router is not in the same subnet as the client IP address Geograph...

Страница 51: ...s an entry without a MAC address This is also the amount of time that a packet will remain in the system while waiting for address resolution Range 1 255 minutes Default 3 NOTE If you have made changes to this screen you must do a card reset for the changes to be in effect ARP Entry Add ARP Entry B Gives the user the ability to add entries into the ARP cache Item Enter 0 zero to add a new record I...

Страница 52: ...Node Screens Use the SN Configuration screen to configure endpoint Service Node information Procedure 1 Follow this menu selection sequence Configuration SN Configuration A F 2 The SN Configuration menu appears Enter the desired value on the selected screen and field as shown in Table 4 5 and press Enter ...

Страница 53: ...e SN System Location 16 alphanumeric characters Enter the location of the SN Model Num Model number of card This field is read only Serial Num Serial number of card This field is read only Firmware Rev Version of firmware This field is read only Hardware Rev Version of hardware This field is read only CAP Rev Version of CAP chipset for Model 8510 RADSL card only This field is read only MVL Rev Ver...

Страница 54: ...ation Filters Screen Use the IP Router Filters to add delete or edit a filter Procedure 1 Follow this menu selection sequence Configuration Filters IP Filters A G A 2 The IP Filters screen appears Enter the desired value on the selected screen and field as shown in Table 4 6 and press Enter ...

Страница 55: ...ild multiple rules for an IP filter A filter consists of a set of rules applied to a specific interface to indicate whether a packet received or sent out of that interface is forwarded or discarded You can add edit or delete filter rules within a named set A filter works by successively applying the rules to the information obtained from the packet header until a match is found The filter then per...

Страница 56: ...efault 0 Comparison Type for source information Ignore Do not do a comparison To do a comparison on the port number specified in the packet and the rule specify one of the following Ignore Ignore ports EQ Equal to NEQ Not Equal to GT Greater than LT Less than In_Range Within the specified range Out_Range Outside of the specified range Default Ignore Max Source Port No 0 65535 Appears only when the...

Страница 57: ...tatistics card status and physical and logical interface status information is presented Most of the Monitoring screens are read only that is the information displayed is to help you gather pertinent information and isolate potential problem areas For diagnostic tools and hardware and software troubleshooting techniques see Chapter 6 Diagnostics and Troubleshooting DSL Monitoring Card Status Scree...

Страница 58: ...e of Card MCC DSL Model Num Model number of card Serial Num Serial number of card Firmware Version of firmware CAP Firmware Version CAP chipset for Model 8510 RADSL card only MVL Rev Version of MVL chipset for Model 8310 MVL card only Hardware Rev Version of hardware Login History B A B Displays a list of information on the 10 most recent logins User User ID Time Date and time of the most recent l...

Страница 59: ...Monitoring the Hotwire DSLAM 5 3 8000 A2 GB26 10 January 1999 Syslog Screen Example ...

Страница 60: ...quence Monitoring Physical Layer B B 2 The Physical Layer menu appears Select the submenu option as shown in Table 5 2 and press Enter Table 5 2 Physical Layer Options 1 of 6 Active List Active Ports List B B A Displays a list of the current status of all the active ports e1a Ethernet s1c s1d s1e and s1f DSL cards Num Number of the port Name Name of the port Description Type of port MAC Address MA...

Страница 61: ... H Flooded Information received then sent out to each of the interfaces H Filtered Processes or devices that screen incoming information H Discarded Packets discarded H VNID Error Number of errors transmitted by the VNID and what type Errors Number of errors transmitted by the Ethernet port and what type H M Multi collision frames not counted in this release and always set to 0 H L Late collisions...

Страница 62: ...transmitted H E Excessive collisions port tried to send a packet 15 times without success Disconnects Number of disconnects on the Ethernet port and what type H Disable Transmit error timed out H MAU drop Transceivers dropped H Xmit fail Transmit fail EtherHDLC Stats EtherHDLC Statistics B B C Displays statistics in real time on the HDLC link later protocol between the Access Node and each Service...

Страница 63: ...ber reflects a lower error rate with a higher tolerance Up Margin Measure of the noise margin on the specified port in the upstream direction A positive margin number reflects a lower error rate with a higher tolerance DnErrRate This statistic is not available for this release and 0 zero appears for each time period UpErrRate Block error rate in the upstream direction Error rate bad blocks good bl...

Страница 64: ...inute intervals in which downstream performance data has been received across the DSL link from the endpoint SN pkt rcv dn Number of downstream packets received pkt snt dn Number of downstream packets sent pkt lost dn Number of downstream packets lost pkt rcv up Number of upstream packets received pkt snt up Number of upstream packets sent pkt lost up Number of upstream packets lost k octs sent dn...

Страница 65: ... err secs Count of the number of down error seconds with at least one block error in the downstream data path up err secs Count of the number of up error seconds with at least one block error in the upstream data path dn svr err sec Count of the number of seconds with at least 800 block errors in the downstream data path up svr err sec Count of the number of seconds with at least 800 block errors ...

Страница 66: ...erfaces screens to display read only system information about interfaces Procedure To view the active interfaces list and interface status list 1 Follow this menu selection sequence Monitoring Interfaces B C 2 The Monitor Interfaces menu appears Select the submenu option as shown in Table 5 3 and press Enter ...

Страница 67: ...able port Port linked to this interface The only information that changes on this screen is the state active or port wait column Status Interface Status B C B Displays a list of additional information after a specific interface port has been selected if name Enter the name of the desired interface protocol Type of protocol for the entered interface name port Port linked to this interface restarts ...

Страница 68: ...gement traffic statistics between the access node and the MCC card including socket statistics UDP statistics TCP data and connection statistics IP statistics ICMP statistics and SNMP statistics these statistics only apply to traffic over the backplane 1 Follow this menu selection sequence Monitoring Network Protocol B D 2 The Network Protocol menu appears Select the submenu option as shown in Tab...

Страница 69: ...tes Bytes waiting in the socket for the owning application to process will go to 0 when processed by the application Send Bytes Bytes waiting to be sent out to the remote machine PDU Drops Incoming packets dropped usually due to a lack of space Byte Drops Outgoing packets dropped usually due to a lack of space UDP Statistics B D B Displays information on User Datagram Protocol UDP statistics for p...

Страница 70: ... bytes with some duplicated data Duplicated data is discarded by TCP pkts rcvd out of order Packets received out of order pkts of data after window Packets of data received after receive window is full window probes Packets received looking for space in the receive window window update pkts Packets received from the remote system advertising a new window size pkts rcv after close Packets received ...

Страница 71: ...keepalive request timed out keepalive probes sent Number of TCP keepalive probes sent connections dropped by keepalive Number of connections dropped because the keepalive timer failed to get any responses IP Statistics B D D Displays a summary of the IP activity on all interfaces that terminate on the DSL card total pkts rev Total number of IP packets received by this card with errors broken down ...

Страница 72: ...ber of SNMP Set Requests PDUs accepted and processed by the SNMP agent Total Set Variables Total number of MIB objects modified successfully by the SNMP agent as a result of receiving valid SNMP Set Requests PDUs ASN 1 Parse Errors Total number of Abstract Syntax Notation One ASN 1 or Bit Error Rate BER errors encountered when decoding received SNMP messages Out Packets Total number of SNMP PDU re...

Страница 73: ...nformation Community Administration Number of SNMP PDUs with community based authentication H Bad Versions Total number of SNMP messages delivered to the SNMP agent for an unsupported SNMP version H Bad Community Name Total number of SNMP messages delivered to the SNMP agent that used an SNMP community name not known to the entity H Bad Community Use Total number of SNMP messages delivered to the ...

Страница 74: ...shown in Table 5 5 and press Enter Table 5 5 Bridge Options 1 of 3 Bridge Table B E A Displays information on various bridge functions Item Enter the item number you wish to display from 1 16 VNID VNID number from 2 4094 in VNID tagged mode Default Null in VNID untagged mode Mux Fwd Enable traffic forced upstream Disable blank IP Filter Enable Disable IP Scoping Enable Disable Domain Name Domain n...

Страница 75: ...r the DSL port number 1 4 Default 1 Item to Display Entry number Total Total number of users Item Enter the input number of the client Default 0 IP Address Client IP address in nnn nnn nnn nnn format Default 0 Subnet Mask or Lease Expiration Variable based on Static or Dynamic entry For static entries Subnet Mask is used with IP address to specify a range of allowable static host IP entries to the...

Страница 76: ... Address Resolution Protocol ARP cache Line Sequential number of line IP Address Internet Protocol Address MAC Address MAC address associated with the IP address An incomplete can be shown in this column for some internal entries such as the backplane Min Number of minutes since this entry was last used VNID VNID between 2 4094 Default none Flags Various flags associated with this entry H PM perma...

Страница 77: ...the DSL or MVL port number 1 4 SN Type Model number of endpoint For Model 8510 the SN is 5620 For Model 8310 the SN is 6310 MVL modem System Name 16 alphanumeric characters Name assigned to the endpoint System Contact 32 alphanumeric characters Name or number of the person responsible for the endpoint System Location 16 alphanumeric characters Physical location of the system Model Num Model number...

Страница 78: ...le B G A The Filter Table screen displays the status of the IP filter Item Enter the item to display Filter Name Name of the IP filter of Rules Number of rules in filter Default filter action Forward discard VNID Interface and VNID to which the filter belongs Port Port to which the filter belongs slc s1f Filter status Active Inactive Direction Inbound Outbound NOTE To view the filter rules you mus...

Страница 79: ...6 1 8000 A2 GB26 10 January 1999 Diagnostics and Troubleshooting 6 Diagnostic Screens Use the Diagnostics submenu to perform self tests or view alarm status ...

Страница 80: ...L or Ethernet Port Failures Refer to Table 6 2 Major Alarms Minor alarms include Config Error configuration has been corrupted and Threshold Exceeded for DSL Margin or Link Down events Refer to Table 6 3 Minor Alarms DSL Packet Echo Test D C Gives the user the ability to conduct a nondisruptive packet test between the DSL card and Hotwire Service Node endpoint Test packets are sent to the Service ...

Страница 81: ...equence Monitor Card Status Syslog B A C and view the event on the MCC Card System Log Major Alarms Use Table 6 2 to determine the appropriate action to take for each Major Alarm Table 6 2 Major Alarms 1 of 2 Alarm Action Selftest Failure 1 Check the Self test Results display by following the menu selection sequence Diagnostics Selftest D A 2 Do another Selftest Reset and check results If the resu...

Страница 82: ...or interface panel connections for the original slot are bad Schedule maintenance for the chassis and try to use the spare slot temporarily If this does not solve the problem the DSL card is probably bad and should be replaced DSL Port Failure 1 Check the Selftest Results display by following the menu selection sequence Diagnostics Selftest D A 2 Do another Selftest Reset and check results If the ...

Страница 83: ...ed to problems with the DSL card Margin Threshold A trap message is sent if margin falls below selected value H If DSL speed is set to a Fixed Rate you may choose to lower the speed in the direction indicated by the threshold alarm Fixed Up Speed or Fixed Down Speed to get a better Margin and improved error performance H If DSL speed is set to Rate Adaptive and the Margin Threshold is greater than...

Страница 84: ... and continue normal operation H If the threshold is set high more than 4 and the link is currently down then check the Margin statistics over the past hour and day If the numbers are low there may be a situation where the DSL modems cannot train This condition may be temporary or permanent However if it persists the loop may have to be reengineered for better performance by performing one of the ...

Страница 85: ...cedures assume that Asynchronous Transfer Mode ATM is used on the link between the IPC and the next hop router NHR High Level Troubleshooting The following high level procedures help you isolate problems to a particular segment of the network H For static clients make sure the client can Ping its own IP address This confirms the IP address was successfully accepted by the client computer H Make su...

Страница 86: ... DSLAM Segment The Client cannot reach the IPC Refer to Table 6 6 DSLAM to IPC Segment The Client cannot reach the Gateway Router Refer to Table 6 7 IPC to Router Segment and Table 6 8 Router to IPC Segment The tables in the following sections each pertaining to a specific network segment provide suggestions for resolving network problems Client Cannot Ping the Gateway Router When the client canno...

Страница 87: ...Network 1 If static addressing is used make sure the client has its correct IP address and subnet mask by entering the following Windows 95 winipcfg Windows NT ipconfig all For other operating systems use help or see the appropriate manual 2 Restart the client after a static IP address has been added or changed 3 Make sure the client can Ping its own IP address This confirms the IP address was suc...

Страница 88: ... 01 O O I I Next Hop Router NHR DSLAM Clients NMS WAN Hub SN SN ISP IPC WAN Service Node to DSLAM Segment NMS ISP Gateway Router Table 6 5 Service Node to DSLAM Segment 1 of 2 Layer Solution Layer 1 Physical 1 On either the Service Node or Access Node if the ALM LED is on power the system off and then on again Conduct a self test from screen D A Go to screen D B to learn more about the cause of th...

Страница 89: ...the status is not active restart the port 4 If dynamic addressing is being used and the clients cannot get an IP address from the DHCP server statically configure an IP address and then verify that the client can Ping the DHCP server After the client reaches the server remove the IP address and return the system to dynamic DHCP addressing 5 An ARP table may have invalid entries if a recent configu...

Страница 90: ... If the correct MAC address appears on the IPC and all the items in the previous sections have been examined it is safe to assume that this segment of the network is functioning properly Skip this section and go to Client Cannot Reach Router on page 6 14 If a MAC address does not appear check the items in Table 6 6 99 16174 01 O O I I Next Hop Router NHR DSLAM Clients NMS WAN Hub SN SN ISP IPC WAN...

Страница 91: ...n the VNID number must be the same as the group number on the IPC 2 Make sure a card VNID is entered screen A E B If tagged mode is disabled for VNID tagging Card VNID should be none NOTE With firmware earlier than 3 2 3 follow Steps 3 and 4 For firmware later than 3 2 3 complete Step 4 only 3 Make sure the appropriate VNID is active on the correct port screen A E C An asterisk indicates the activ...

Страница 92: ...e DCE cables 3 If no CDU DSUs exist between IPC and Router make sure transmission lines are active by looking for appropriate LEDs 4 If there is no connection between the router and IPC invert the clocking on one or both DSU CSUs Layer 2 Network On the IPC 1 Set payload scramble to false To turn PLScramble on or off on the IPC type map slot port where slot port is that of the ATM card and set 10 1...

Страница 93: ...espective ATM subinterface and that the BVI number is the same as the bridge group number 4 Make sure encapsulation on the router is the same as on the IPC RFC1483 5 Make sure the client s default gateway is the same as the IP address for BVI on the appropriate ISP router 6 If a Ping from the client is not successful issue a show ARP cache command on the router to make sure the correct MAC address...

Страница 94: ...B B G to view Transmit statistics and choose a port H Screen B A C to view System Log Examine Slow Performance Screen B B B Slow performance could result from errors seen on this screen Make sure the DSLAM and IPC are both operating at either full or half duplex mode On the DSLAM go to screen A B A On the IPC enter 10 100cfg If operating at full duplex a hub should not be used Check the Ethernet S...

Страница 95: ...tem When a software upgrade affects both the MCC and the DSL cards you must download and apply a new version of code into each of the DSL cards before you download and apply a new version of code into the MCC When you are downloading code to an endpoint configure your TFTP server with the following timeout values H Retransmission timeout Value not less than 10 seconds H Total transmission Value no...

Страница 96: ... other methods used to download firmware to the DSL and MVL cards see Configuration Options in the Hotwire Management Communications Controller MCC Card IP Conservative User s Guide Download Only System Automatic Immediate Apply Before initiating a download go to the MCC card and verify that you can Ping the TFTP server If you cannot do not proceed with the download Also make certain that the file...

Страница 97: ... Configuration change affecting the entity MIB 1 hot_domain mib Enterprise MIB Cold start warning Card has been reset and performed a cold start 0 MIB II RFC 1213 Configuration download failure warning Configuration download has failed 2 hot_diag mib Enterprise MIB Device failure major Access Node s software has detected an internal device failure 15 hot_sys mib Enterprise MIB DHCP filter security...

Страница 98: ...arted by any means 6 hot_xdsl mib Enterprise MIB xDSL test clear normal Test over 106 hot_xdsl mib Enterprise MIB Dynamic filter injection failure warning Cannot inject or delete dynamic filters to Service Node on port n 10 hot_dhcp mib Enterprise MIB Ethernet link down major 2 MIB II RFC 1213 Ethernet link up normal 3 MIB II RFC 1213 Warm start warning Power on reset 1 MIB II RFC 1213 Self test f...

Страница 99: ...ived last gasp message from Service Node followed by a link down condition one minute later 17 hot_xdsl mib Enterprise MIB SN self test failure minor Failure of the Service Node s hardware components This trap is only sent if the hardware failure still allows sending traps 19 hot_xdsl mib Enterprise MIB ...

Страница 100: ...Traps B 4 8000 A2 GB26 10 January 1999 This page intentionally left blank ...

Страница 101: ...ower to circuit card slots The range of frequencies that can be passed by a transmission medium or the range of electrical frequencies a device is capable of handling Bit Error Rate The number of bits in error over a given period compared to the number of bits transmitted successfully Bootstrap Protocol Described in RFCs 951 and 1084 it is used for booting diskless nodes Bits per second Bits per s...

Страница 102: ...rk protects the line from damage and regenerates the signal Name of the DSL card s and MCC card s 10BaseT Ethernet interface MIB objects unique to a specific company s devices A type of network that supports high speed communication among systems It is a widely implemented standard for LANs All hosts are connected to a coaxial cable where they contend for network access using a Carrier Sense Multi...

Страница 103: ...ss The unique fixed address of a piece of hardware normally set at the time of manufacture and used in LAN protocols The additional noise measured in dB that would need to be added to the existing noise on a given DSL loop to bring the Bit Error Rate to IE 7 107 Management Communications Controller Card The DSLAM circuit card used to configure and monitor the DSLAM Management Information Base A da...

Страница 104: ...y users who can use telephones to establish connections between two points Also know as dial network Rate Adaptive Digital Subscriber Line A technique for the use of an existing twisted pair line that permits simultaneous POTS and high speed data communication at adaptive symmetric and asymmetric rates The ability to automatically adapt when the port speed is lower than the line speed A device tha...

Страница 105: ...emote host computer and interact as a normal terminal user for that host Software that allows a PC to mimic the signals of a specific type of terminal such as a VT100 or 3270 to communicate with a device requiring that terminal interface Trivial File Transfer Protocol A standard TCP IP protocol that allows simple file transfer to and from a remote system without directory or file listing TFTP is u...

Страница 106: ...Glossary GL 6 8000 A2 GB26 10 January 1999 This page intentionally left blank ...

Страница 107: ...ent domain 3 1 Service domain 3 1 Download Code A 1 Download Code screen 4 4 Downloading Code A 2 DSL card 1 5 DSL Error Stats screen 5 9 DSL Link Perf screen 5 7 DSL Parameters screen 4 6 DSL Perf Stats screen 5 8 DSL Ports screen 4 6 DSL Sourcebook 1 8 DSL Transmit Stats screen 5 9 DSLAM description 1 1 E Ether Statistics screen 5 5 exiting the system 2 12 F failure use Ping screen 6 7 use Telne...

Страница 108: ...POTS splitter 1 1 R Rate Adaptive Digital Subscriber Line RADSL 1 1 remote login 2 3 RTU Information screen 4 15 5 21 S Selftest screen 6 2 Service Nodes SNs 1 1 Simple Network Management Protocol SNMP 1 5 status line 2 4 Status screen 5 11 subnet masks 3 6 system header line 2 3 System Information screen 4 2 T Time Date screen 4 2 Troubleshooting 6 3 Cannot Upload Configuration to a UNIX Server 6...

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