OBJ009302 MA5300 Broadband Access Equipment Troubleshooting

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OBJ009302 MA5300 Broadband Access Equipment
Troubleshooting

• 1.0

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Objectives
Upon Completion of this course, you will be able
to

• Master basic troubleshooting methods.
• Use the commonly used commands to identify the
  problems.
• To solve the common service faults in MA5300.

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Contents

• Some Ideas in Troubleshooting
• How to Troubleshoot in MA5300
• Service Troubleshooting in MA5300

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Some Ideas in Troubleshooting

• General procedure of troubleshooting.
• Recognizing Symptoms
• Understanding the Problem
• Identifying Cause of the Problem
• Solving the Problem

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Some Ideas in Troubleshooting

• Common methods in troubleshooting
• Layer-based analysis
• Isolation analysis
• Comparison analysis
• Swapping analysis

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Layer-based Analysis
Application
Presentation
Session
Transport
Destination unreachable,
Network
PVC, VLAN, PPP link fail
Data Link
Cable fail, board fail, cable disconnected
Physical
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Isolation Analysis
DHCP Server
Radius Server
DSLAM
BAS
VDSL Modem
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Comparison Analysis
MA5300(Built-in BAS)
..
Ordinary subscribers
Ordinary subscribers
Ordinary subscribers
Ordinary subscribers
Commercial subscribers
Commercial subscribers
Commercial subscribers
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Swapping Analysis
FTP Server
DHCP Server
Radius Server
Low Speed
DSLAM
BAS
VDSL Modem
Swap Component
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Troubleshooting Tools

• Common tools used in troubleshooting
• Command Line
• NMS
• Network analyzer (Ethereal, Sniffer, Analyzer)

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Contents

• Some Ideas in Troubleshooting
• How to Troubleshoot in MA5300
• Service Troubleshooting in MA5300

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Physical Layer Troubleshooting

• Indicator
• Modem
• ADSL line sync, Ethernet state
• Board
• RUN, ALARM
• Interface
• State, Data

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Physical Layer Troubleshooting

• Alarm
• BASdisplay trap
• Display trap buffer
• 02/23/2004 235733- DEV-2-070f2004frame 0
  slot 0 subslot 0 port 10 up
• MA5300(config)show alarm list all
• ALARMID OUTPUT STATISTIC ALARM_NAME
• 0x00200000 YES NO 15-minute
  threshold alarm
• 0x00200001 YES NO 24-hour threshold
  alarm
• 0x02300003 YES NO Clock SDH source
  switch

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Physical Layer Troubleshooting

• Display state of the interface.
• bas1-for-nmsdisplay interface Ethernet 5
• Ethernet5 current state DOWN
• Line protocol current state DOWN
• Description HUAWEI, ISU, Ethernet5 Interface
• The Maximum Transmit Unit is 1500, The
  keepalive is 10(sec)
• MA5300(config)show interface adsl 0/0/0
• Adsl0/0/0 is administratively down
• The ADSL link is deactive
• Bind line-profile No.1 LINE-PROFILE-1
• Bind alarm-profile No.1 ALARM-PROFILE-1

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Physical Layer Troubleshooting

• Display working state of the board
• MA5300(config)show board 0
• SlotID BoardName Status SubType1
  SubType2
• 0 EADA Normal
• 1
• 2
• 3
• 4
• 5
• 6
• 7 ESMA Active_normal O2GAE E4FE
• 8 ESMA Standby_normal O2GAE E4FE

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Physical Layer Troubleshooting

• ADSL line condition
• MA5300(config)show adsl line state adsl 0/0/0
• Current Link Status deactive
• Atuc
• Current Snr Margin(dB) 0
• Current Chan Attenuation(dB) 0
• Current Output Power(dBm) 0
• Current Attainable Rate(Kbps) 0
• Current Transmission Mode NONE
• Channel Interleave Delay(ms) 0
• Channel Current tx-Rate(Kbps) 0
• Atur

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Data Link Layer Troubleshooting

• Check working mode of Modem
• Check the pvc configuraiton
• MA5300(config)show interface adsl 0/0/0
• Adsl0/0/0 is administratively down
• The ADSL link is deactive
• Bind line-profile No.1 LINE-PROFILE-1
• Bind alarm-profile No.1 ALARM-PROFILE-1
• Line coding type is DMT
• Local-Tx-Rate 0 Kbps, Remote-Tx-Rate 0 Kbps,
  _ADSL_TX
• PVC vpi is 0, vci is 35

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Data Link Layer Troubleshooting

• Check the VLAN configuration
• MA5300(config)show vlan
• Now, the following vlan exist(s)
• 1(default), 99, 128-175
• MA5300(config)show interface adsl 0/0/0
• Adsl0/0/0 is administratively down
• The ADSL link is deactive
• PVID is 128
• Port mode access
• Tagged VLAN ID none
• Untagged VLAN ID 128

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Data Link Layer Troubleshooting

• MA5300(config)show interface gigabitEthernet
  7/1/1
• GigabitEthernet7/1/1 is up
• Hardware is Gigabit Ethernet, Hardware address
  is 00e0.fc1e.efc9
• .
• PVID is 1
• Priority is 0
• Max multicast group count 2
• Port mode trunk
• Vlan passing 1(default vlan), 99
• Vlan allowed 1(default vlan), 2-4000

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Network Layer Troubleshooting

• Check IP configuration of the customers
  computer.
• Display interface state
• BASdisplay interface GigabitEthernet 10
• GigabitEthernet10 current state UP
• Line protocol current state UP
• Description HUAWEI, ISU, GigabitEthernet10
  Interface
• Ping
• MA5300ping 172.31.1.53

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Network Layer Troubleshooting

• Check IP route
• ltBASgtdisplay ip routing-table
• Routing Table public net
• Destination/Mask Proto Pre Cost Nexthop
  Interface
• 127.0.0.0/8 DIRECT 1 0 127.0.0.1
  InLoopBack0
• 127.0.0.1/32 DIRECT 1 0 127.0.0.1
  InLoopBack0
• MA5300(config)show ip route
• Routing Tables
• Destination/Mask Proto Pre Metric Nexthop
  Interface
• 127.0.0.0/8 DIRECT 0 0 127.0.0.1
  InLoopBack0
• 172.31.1.0/24 DIRECT 0 0 172.31.1.52
  Vlan-interface99

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Network Layer Troubleshooting

• Debug
• ltBASgtterminal monitor
• ltBASgtterminal debugging
• ltBASgtdebugging dhcpr packet
• Trace
• ltBASgttrace object ?
• ethernet Object ethernet number
• gigabitethernet Object ethernet number
• ip-address Object ip address
• mac-address Object mac address
• trunk Object trunk number
• user-name Object user name

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Contents

• Some Ideas in Troubleshooting
• How to Troubleshoot in MA5300
• Service Troubleshooting in MA5300

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PPPoE Service Troubleshooting

• Common service problems in MA5300
• User cannot find the PPPoE server.
• Username or password is incorrect.
• Low speed.

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PPPoE Service Troubleshooting

• User cannot find the PPPoE server.
• Cause The PPPoE client cannot find the PPPoE
  server.
• Locating problem Physical layer, or data link
  layer.
• Solving problems
• User
• Check the PPPoE client was installed correctly
• Check the Physical connection between computer
  and modem, modem and the phone line
• Check modem was configured correctly

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PPPoE Service Troubleshooting

• DSLAM
• Check the EAD board state, and the ADSL line
  state
• Check the connection between DLSAM and BAS
• Check the vpi/vci of the ADSL port
• Check the VLAN configuration in DSLAM
• ADSL port and uplink ethernet port.
• BAS
• Check the PPPoE configuration in BAS.
• Virtual-template and whether the port is bound
  with VT.

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PPPoE Service Troubleshooting

• Username or password is incorrect.
• Cause user cannot pass authentication.
• Locating problem PPP link layer, network layer.
  Physical layer works. Physical layer is working
  normally.
• Solving problems
• User
• Confirm the user input correct username and
  password
• BAS
• Check the authentication configuration in BAS,
  whether the user uses local authentication or
  Radius authentication.

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PPPoE Service Troubleshooting

• If the user uses local authentication, check
  whether this username and password was configured
  in the BAS correctly.
• If the user uses Radius authentication, check the
  Radius configuration.
• External equipment
• Check the Radius server is working normally, and
  is reachable.
• Check the username and password was configured in
  the Radius correctly.

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PPPoE Service Troubleshooting

• Low speed.
• Solving problems
• User
• Check the users computers hardware
  configuration, and running performance.
• Check the cable and line is fully connected.
• DSLAM
• Check the quality of the ADSL line
• Check the transmission rate configuration of the
  ADSL line profile.

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PPPoE Service Troubleshooting

• BAS
• Check the CAR configuration of the user.
• Ping destination IP address to see whether there
  is a traffic bottleneck to the destination in
  network.
• If possible, connect a server directly with BAS,
  observe the traffic on the users computer.

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DHCP Service Troubleshooting

• User cannot obtain IP address.
• Locating problem physical layer, data link
  layer, network layer.
• Solving problem
• User
• Check the IP configuration of the computer.
• Check the Physical connection between computer
  and modem, modem and the phone line
• Check modem was configured correctly

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DHCP Service Troubleshooting

• DSLAM
• Check the EAD board state, and the ADSL line
  state
• Check the connection between DLSAM and BAS
• Check the vpi/vci of the ADSL port
• Check the VLAN configuration in DSLAM
• BAS
• Check the service configuration.
• If the external DHCP is used, check the DHCP
  server is working normally and reachable.

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DHCP Service Troubleshooting

• External equipment
• Make sure the configuration in DHCP server is
  correct.

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DHCP Service Troubleshooting

• Low speed.
• Same as PPPoE service.

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