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Configuration Guide - VPN

S7700 and S9700 V200R013C00

This document describes the configurations of VPN, including GRE, IPSec, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, VPLS, L2VPN Access to L3VPN.
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The VC of a Martini VLL Connection Cannot Go Up

The VC of a Martini VLL Connection Cannot Go Up

Fault Description

After Martini VLL is configured, the local end cannot ping the remote end. The VC status is Down.

Procedure

  1. Check whether the two ends use the same encapsulation type and MTU value.

    Run the display mpls l2vc vc-id command to check VC information.

    <HUAWEI> display mpls l2vc 102
     Total LDP VC : 1     0 up       1 down                      
                                                                 
     *client interface       : Vlanif10 is up                     
      Administrator PW       : no                                 
      session state          : down                              
      AC status              : up                                
      Ignore AC state        : disable
      VC state               : down                              
      Label state            : 0                                 
      Token state            : 0                                
      VC ID                  : 102                              
      VC type                : VLAN                         
      destination            : 2.2.2.2                       
      local VC label         : 1032         remote VC label      : 0  
      control word           : disable                 
      remote control word    : none                   
      forwarding entry       : not exist               
      local group ID         : 0                      
      remote group ID        : 0                     
      local AC OAM State     : up                     
      local PSN OAM State    : up                    
      local forwarding state : not forwarding       
      local status code      : 0x1                  
      BFD for PW             : unavailable          
      VCCV State             : up                   
      manual fault           : not set              
      active state           : inactive             
      link state             : down           
      local VC MTU           : 1500         remote VC MTU        : 0 
      local VCCV             : alert ttl lsp-ping bfd  
      remote VCCV            : none                    
      tunnel policy name     : --                      
      PW template name       : --                      
      primary or secondary   : primary 
    .....
    

    If the two PEs use different encapsulation types or MTU values, configure the same type of AC interfaces on the PEs and run the mpls mtu command to set the same MTU value on the PEs.

    If the two PEs use the same encapsulation type and MTU but the fault persists, go to step 2.

    NOTE:

    A VC can go Up only when both ends use the same encapsulation type and MTU value.

  2. Check whether VC IDs on the two PEs are the same.

    <HUAWEI> display mpls l2vc 102
     Total LDP VC : 1     0 up       1 down            
                                                      
     *client interface       : Vlanif10 is up         
      Administrator PW       : no                     
      session state          : up                     
      AC status              : up                     
      Ignore AC state        : disable
      VC state               : down                   
      Label state            : 0                     
      Token state            : 0                     
      VC ID                  : 102           
      VC type                : VLAN                  
    .....
    

    If the VC IDs are different, run the undo mpls l2vc command on one end to delete the existing VC ID, and then run the mpls l2vc command to set the VC ID to the same as that on the other end.

    If the two ends use the same VC ID but the fault persists, go to step 3.

    NOTE:

    A VC can go Up only when both ends use the same VC ID.

  3. Check whether the control words on the two PEs are the same.

    <HUAWEI> display mpls l2vc 102
     Total LDP VC : 1     0 up       1 down      
                                                 
     *client interface       : Vlanif10 is up   
      Administrator PW       : no               
      session state          : up              
      AC status              : up              
      Ignore AC state        : disable
      VC state               : down            
      Label state            : 0               
      Token state            : 0               
      VC ID                  : 102             
      VC type                : VLAN            
      destination            : 2.2.2.2        
      local VC label         : 1032         remote VC label      : 1500  
      control word           : disable      
      remote control word    : none      
      forwarding entry       : not exist   
      local group ID         : 0           
      remote group ID        : 0           
      local AC OAM State     : up          
      local PSN OAM State    : up             
      local forwarding state : not forwarding 
      local status code      : 0x1            
      BFD for PW             : unavailable    
      VCCV State             : up             
      manual fault           : not set        
      active state           : inactive       
      link state             : down           
      local VC MTU           : 1500         remote VC MTU        : 0  
      local VCCV             : alert ttl lsp-ping bfd      
      remote VCCV            : none                       
      tunnel policy name     : --                     
      PW template name       : --                   
      primary or secondary   : primary 
    .....
    

    A VC can go Up only when both ends use the same control word. If the control words on two ends are different, run the undo mpls l2vc command to delete a VC connection on one end and then run the mpls l2vc command to create a VC connection and configure the same control word for two ends.

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Updated: 2019-04-08

Document ID: EDOC1100065751

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