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NE40E V800R010C10SPC500 Commissioning Guide

This is NE40E V800R010C10SPC500 Commissioning Guide
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Commissioning TDM Interfaces

Commissioning TDM Interfaces

This section describes how to commission TDM interfaces.

Prerequisites

Checking the Hardware has been completed, the router device to be commissioned is running properly, the E1 cables on the AC sides for carrying TDM services are correctly connected, and network-side cables are connected correctly.

Context

As shown in Figure 5-1, a static routing protocol has to be deployed in the network to ensure normal communication between the DeviceA device and the network segment 172.16.1.0 where the DeviceB is located.

Figure 5-1 Typical networking diagram for TDM interface commissioning

Procedure

  1. Configure a TDM serial interface and specify the protocol of the interface as TDM. The following uses serial interface 2/0/0:1 as an example to describe how to configure a TDM serial interface.
  2. Configure a TDM PWE3 service for the serial interface.

    For the detailed procedure, see the guides to configure TDM services for router devices. Then run the display this command on the router device to view the configurations of the serial interface.

    [HUAWEI-Serial2/0/0:1] display this
          #
          interface Serial2/0/0:1
          link-protocol tdm
          mpls l2vc 2.2.2.2 pw-template 1 101
          #
          return 

    On the device, use the same way to configure a TDM PWE3 service for the serial interface. Ensure that the PW profile parameters of the device are same.

  3. On the router device, run the display mpls l2vc command to check the status of the TDM PW.

    [HUAWEI] display mpls l2vc inter serial 2/0/0:1
          *client interface       : Serial2/0/0:1 is up                                                                                      
          Administrator PW       : no                                                                                                       
          session state          : up                                                                                                       
          AC status              : up                                                                                                       
          VC state               : up                                                                                                       
          Label state            : 0                                                                                                        
          Token state            : 0                                                                                                        
          VC ID                  : 101                                                                                                      
          VC type                : CESoPSN basic mode                                                                                       
          destination            : 2.2.2.2                                                                                                  
          local group ID         : 0            remote group ID      : 0                                                                    
          local VC label         : 16           remote VC label      : 20                                                                   
          local TDM Encap Num    : 8            remote TDM Encap Num : 8                                                                    
          jitter-buffer          : 4                                                                                                        
          local rtp-header       : disable      remote rtp-header    : disable                                                              
          local bit-rate         : 31           remote bit-rate      : 31                                                                   
          local AC OAM State     : up                                                                                                       
          local PSN OAM State    : up                                                                                                       
          local forwarding state : forwarding                                                                                               
          local status code      : 0x0                                                                                                      
          remote AC OAM state    : up                                                                                                       
          remote PSN OAM state   : up                                                                                                       
          remote forwarding state: forwarding                                                                                               
          remote status code     : 0x0                                                                                                      
          ignore standby state   : no                                                                                                       
          BFD for PW             : unavailable                                                                                              
          VCCV State             : up                                                                                                       
          manual fault           : not set                                                                                                  
          active state           : active                                                                                                   
          forwarding entry       : exist                                                                                                    
          OAM Protocol           : --                                                                                                       
          OAM Status             : --                                                                                                       
          OAM Fault Type         : --                                                                                                       
          PW APS ID              : 0                                                                                                        
          PW APS Status          : --                                                                                                       
          TTL Value              : 1                                                                                                        
          link state             : up                                                                                                       
          local VC MTU           : --           remote VC MTU        : --                                                                   
          local VCCV             : alert ttl lsp-ping bfd                                                                                   
          remote VCCV            : alert ttl lsp-ping bfd                                                                                   
          local control word     : disable      remote control word  : disable                                                              
          tunnel policy name     : tp31                                                                                                     
          PW template name       : 1                                                                                                        
          primary or secondary   : primary                                                                                                  
          load balance type      : flow                                                                                                     
          Access-port            : false                                                                                                    
          Switchover Flag        : false                                                                                                    
          VC tunnel/token info   : 1 tunnels/tokens                                                                                         
           NO.0  TNL type       : cr lsp, TNL ID : 0x3                                                                                     
           Backup TNL type      : lsp   , TNL ID : 0x0                                                                                     
          create time            : 0 days, 4 hours, 42 minutes, 2 seconds                                                                   
          up time                : 0 days, 0 hours, 3 minutes, 59 seconds                                                                   
          last change time       : 0 days, 0 hours, 3 minutes, 59 seconds                                                                   
          VC last up time        : 2014/11/28 14:44:27                                                                                      
          VC total up time       : 0 days, 0 hours, 3 minutes, 59 seconds                                                                   
          CKey                   : 2                                                                                                        
          NKey                   : 1                                                                                                        
          PW redundancy mode     : frr                                                                                                      
          AdminPw interface      : --                                                                                                       
          AdminPw link state     : --                                                                                                       
          Diffserv Mode          : pipe                                                                                                     
          Service Class          : ef                                                                                                       
          Color                  : green                                                                                                    
          DomainId               : --                                                                                                       
          Domain Name            : -- 

    As shown in the command output, the interface configurations and cable connections are correct, no alarms are reported for the interface, and the PW is up. In addition, after a test instrument feeds a service to the router device, the service is transmitted properly.

Handling Common Faults

The PW profile parameters of the router device are inconsistent.
  1. Handling procedure:
    1. Run the display pw-template command on the router device to check whether the PW profile parameters are consistent. If they are inconsistent, make changes properly to make them consistent.

      <HUAWEI> display pw-template
             PW Template Name : 1  
             PeerIP           : -- 
             Tnl Policy Name  : -- 
             CtrlWord         : Disable
             MTU              : 1500
             Max Atm Cells    : 28
             ATM Pack Overtime: 1000
             Seq-Number       : Disable
             TDM Encapsulation Number: 8
             Jitter-Buffer           : 4
             Rtp-Header              : Disable
             VCCV Capability  : alert ttl lsp-ping bfd
             Behavior Name    : --
             Total PW         : 0, Static PW : 0, LDP PW : 0
The AC-side interfaces that carry TDM services are not up. These interfaces include the E1 and serial interfaces.
  1. Handling procedure 1:
    1. In the E1 interface view, run the display this interface command to check whether the physical state of the interface is up. If the state is not up, handle the fault of the E1 interface being down.
    2. In the serial interface view, run the display this interface command to check whether the serial interface has been shut down. If the serial interface has been shut down, run the undoshut serial command to turn on the interface.
    3. In the serial interface view, run the display this command separately on the router device to check whether the TDM protocol is used on the two devices. If it is not, correct the setting to ensure that the two devices use the TDM protocol.
      [HUAWEI-Serial2/0/0:1] display this
            #
            interface Serial2/0/0:1
            link-protocol tdm
            mpls l2vc 2.2.2.2 pw-template 1 101
            #
            return 
For the E1 interfaces on the router device, the channelized mode or the number of bound timeslots differs.
  1. Handling procedure:
    1. In the E1 interface view, run the display this command on the router device to view the channelized mode and number of bound timeslots configured for the E1 interfaces. If the configurations are inconsistent, correct them.
      [HUAWEI-E1 2/0/0] display this
            #
            controller E1 2/0/0
            channel-set 1 timeslot-list 1-31
            undo shutdown
            #
            return      
            An example is as follows:
            [PPP_980B-E1 2/0/1]display this
            #
            controller E1 2/0/1
            using e1
            undo shutdown
            #
            return  
The PW or tunnel that carries the TDM service is down.
  1. Handling procedure: On the router device, run the display mpls l2vc command to check the PW status of the port where the service is interrupted.

    [HUAWEI] display mpls l2vc inter serial 2/0/0:1
          *client interface       : Serial2/0/0:1 is up                        
           Administrator PW       : no                                     
           session state          : up                                   
           AC status              : up                                     
           VC state               : down                                   
           Label state            : 0                                      
           Token state            : 0                                      
           VC ID                  : 101                                    
           VC type                : CESoPSN basic mode                     
           destination            : 2.2.2.2                                
           local group ID         : 0            remote group ID      : 0  
           local VC label         : 16           remote VC label      : 22 
           local TDM Encap Num    : 8            remote TDM Encap Num : 8  
           jitter-buffer          : 4                                      
           local rtp-header       : disable      remote rtp-header    : disable
           local bit-rate         : 1            remote bit-rate      : 1  
           local AC OAM State     : up                                     
           local PSN OAM State    : up                                     
           local forwarding State : forwarding                             
           local status code      : 0x0                                    
           remote AC OAM State    : up                                     
           remote PSN OAM State   : up                                     
           remote forwarding State: not forwarding                         
           remote status code     : 0x1                                    
           ignore standby state   : no                                     
           BFD for PW             : unavailable                            
           VCCV state             : no                                     
           manual fault           : no set                                 
           active state           : inactive                               
           forwarding entry       : not exist                              
           OAM Protocol           : --                                     
           OAM Status             : --                                     
           OAM Fault Type         : --                                     
           PW APS ID              : 0                                      
           PW APS Status          : --                                     
           PW APS Status          : --                                     
           TTL Value              : 1                                      
           link state             : down                                   
           local VC MTU           : 2000         remote VC MTU        : 0  
           local VCCV             : cw alert ttl lsp-ping bfd              
           remote VCCV            : cw alert ttl lsp-ping bfd              
           local control word     : enable       remote control word  : enable              
           tunnel policy name     : --                                     
           PW template name       : 1                                      
           primary or secondary   : primary                                
           load balance type      : flow                                   
           Access-port            : false                                  
           Switchover Flag        : false                                  
           VC tunnel/token info   : 1 tunnels/tokens                       
             NO.0  TNL type       : lsp   , TNL ID : 0x2                   
             Backup TNL type      : lsp   , TNL ID : 0x0                   
           create time            : 0 days, 1 hours, 9 minutes, 32 seconds 
           up time                : 0 days, 0 hours, 0 minutes, 0 seconds  
           last change time       : 0 days, 1 hours, 9 minutes, 32 seconds 
           VC last up time        : 0000/00/00 00:00:00                    
           VC total up time       : 0 days, 0 hours, 0 minutes, 0 seconds  
           CKey                   : 4                                      
           NKey                   : 3                                      
           PW redundancy mode     : frr                                    
           AdminPw interface      : --                                     
           AdminPw link state     : --                                     
           Diffserv Mode          : pipe                                   
           Service Class          : ef                                     
           Color                  : green                                  
           DomainId               : --                                     
           Domain Name            : --       
    1. If the AC status is displayed as down in the command output, see the fault handling procedure for cause 3. If the session state is displayed as down, handle the fault by referring to the MPLS fault handling procedure.
    2. If the AC status and the session state are displayed as up but the VC is down, check whether the VC ID, VC type, and control word of the router device are same .
    3. If they are inconsistent, make changes properly to make them consistent. If they are consistent but the VC is down, handle the fault by referring to the tunnel fault handling procedure.
  2. Handling procedure 2:
    1. Check whether the QoS is configured for the network interface. If QoS is configured, handle the fault by referring to the QoS fault handling procedure.
    2. If the physical state of the TDM link is displayed as *down, then the serial interface has been shut down manually. Enter the serial interface view and run the undo shutdown command.
    3. If the physical state of the TDM link is displayed as down, then the E1 line is faulty. Handle the fault by referring to the E1 fault handling procedure.
The bandwidth allocated to the TDM service on the NNI side is insufficient, or the service packets of a higher priority occupied the bandwidth allocated to the TDM service.
  1. Handling procedure:
    1. Check whether the QoS is configured for the network interface. If QoS is configured, handle the fault by referring to the QoS fault handling procedure.
    2. Check whether the bandwidth on the NNI side is sufficient for transmitting the TDM service. For example, if n timeslots have been configured for the TDM service, calculate the bandwidth required by one TDM service using the following formula: TDM service bandwidth = n x 8 x 8000/8 + Length of the Ethernet packet header.
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Updated: 2019-01-02

Document ID: EDOC1100055014

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