ISSUE Fixed Network Curriculum Development Section OBJ MA5300 Broadband Access Equipment Troubleshooting 1.0

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Objectives Master basic troubleshooting methods. Use the commonly used commands to identify the problems. To solve the common service faults in MA5300. Upon Completion of this course, you will be able to:

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Contents Some Ideas in Troubleshooting How to Troubleshoot in MA5300 Service Troubleshooting in MA5300

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Some Ideas in Troubleshooting General procedure of troubleshooting. Recognizing Symptoms Understanding the Problem Identifying Cause of the Problem Solving the Problem

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Some Ideas in Troubleshooting Common methods in troubleshooting: Layer-based analysis Isolation analysis Comparison analysis Swapping analysis

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Layer-based Analysis Physical Data Link Network Transport Session Presentation Application Cable fail, board fail, cable disconnected… PVC, VLAN, PPP link fail… Destination unreachable, …

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Isolation Analysis IP Network VDSL Modem DSLAMBAS DHCP Server Radius Server

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Comparison Analysis Ordinary subscribers Commercial subscribers MA5300(Built-in BAS) …..

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Swapping Analysis IP Network VDSL Modem DSLAMBAS DHCP Server Radius Server Low Speed FTP Server Swap Component

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Troubleshooting Tools Common tools used in troubleshooting: Command Line NMS Network analyzer (Ethereal, Sniffer, Analyzer…)

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Contents Some Ideas in Troubleshooting How to Troubleshoot in MA5300 Service Troubleshooting in MA5300

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Physical Layer Troubleshooting Indicator Modem: ADSL line sync, Ethernet state Board: RUN, ALARM Interface: State, Data

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Physical Layer Troubleshooting Alarm [BAS]display trap Display trap buffer: # [02/23/ :57:33-] DEV-2-070f2004:frame 0 slot 0 subslot 0 port 10 up …… MA5300(config)#show alarm list all ALARMID OUTPUT STATISTIC ALARM_NAME 0x YES NO 15-minute threshold alarm 0x YES NO 24-hour threshold alarm 0x YES NO Clock SDH source switch

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Physical Layer Troubleshooting Display state of the interface. [bas1-for-nms]display 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 …

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Physical Layer Troubleshooting Display working state of the board MA5300(config)#show board 0 SlotID BoardName Status SubType1 SubType2 0 EADA Normal ESMA Active_normal O2GAE E4FE 8 ESMA Standby_normal O2GAE E4FE

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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 …

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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 ……

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Data Link Layer Troubleshooting Check the VLAN configuration MA5300(config)#show vlan Now, the following vlan exist(s): 1(default), 99, 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

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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),

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Network Layer Troubleshooting Check IP configuration of the customers computer. Display interface state [ BAS]display interface GigabitEthernet 10 GigabitEthernet10 current state : UP Line protocol current state : UP Description : HUAWEI, ISU, GigabitEthernet10 Interface …… Ping MA5300#ping

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Network Layer Troubleshooting Check IP route display ip routing-table Routing Table: public net Destination/Mask Proto Pre Cost Nexthop Interface /8 DIRECT InLoopBack /32 DIRECT InLoopBack0 MA5300(config)#show ip route Routing Tables: Destination/Mask Proto Pre Metric Nexthop Interface /8 DIRECT InLoopBack /24 DIRECT Vlan-interface99

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Network Layer Troubleshooting Debug terminal monitor terminal debugging debugging dhcpr packet Trace trace 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

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal Contents Some Ideas in Troubleshooting How to Troubleshoot in MA5300 Service Troubleshooting in MA5300

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal PPPoE Service Troubleshooting Common service problems in MA5300: User cannot find the PPPoE server. Username or password is incorrect. Low speed.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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;

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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;

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal 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.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal DHCP Service Troubleshooting [External equipment] Make sure the configuration in DHCP server is correct.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal DHCP Service Troubleshooting Low speed. Same as PPPoE service.

Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal