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NE40E V800R010C00 Configuration Guide - MPLS 01

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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).
Example for Configuring an Inter-area Tunnel

Example for Configuring an Inter-area Tunnel

Networking Requirements

Figure 3-27 illustrates a network:

  • IS-IS runs on LSRA, LSRB, LSRC, LSRD, and LSRE.

    • LSRA and LSRE are level-1 routers.

    • LSRB and LSRD are level-1-2 routers.

    • LSRC is a level-2 router.

  • RSVP-TE is used to establish a TE tunnel between LSRA and LSRE over IS-IS areas. The bandwidth for the TE tunnel is 20 Mbit/s.

  • Both the maximum reservable bandwidth and BC0 bandwidth for every link along the TE tunnel are 100 Mbit/s.

Figure 3-27  Inter-area tunnel networking
NOTE:

Interfaces 1 through 2 in this example are GE 1/0/0, GE 2/0/0, respectively.



Configuration Notes

None.

Configuration Roadmap

The configuration roadmap is as follows:

  1. Assign an IP address and its mask to every interface and configure a loopback address that is used as an LSR ID on every LSR.

  2. Enable IS-IS globally and enable IS-IS TE.

  3. Configure a loose explicit path on which LSRB, LSRC, and LSRD functioning as area border routers (ABRs) are located.

  4. Configure MPLS RSVP-TE.

  5. Set bandwidth attributes for every outbound interface on every LSR along the TE tunnel.

  6. Create a tunnel interface on the ingress and configure the source and destination IP addresses, protocol, RSVP-TE signaling protocol, and bandwidth for the tunnel.

Data Preparation

To complete the configuration, you need the following data:

  • Origin AS number, IS-IS level, and area ID of every LSR

  • Maximum reservable bandwidth and BC bandwidth for every link along the TE tunnel

  • Tunnel interface number, source and destination addresses, ID, RSVP-TE signaling protocol, and bandwidth of the tunnel

Procedure

  1. Assign an IP address and its mask to every interface.

    Assign an IP address and its mask to every interface and configure a loopback address that is used as an LSR ID on every LSR according to Figure 3-27.

  2. Configure IS-IS.

    # Configure LSRA.

    [~LSRA] isis 1
    [*LSRA-isis-1] network-entity 00.0005.0000.0000.0001.00
    [*LSRA-isis-1] is-level level-1
    [*LSRA-isis-1] quit
    [*LSRA] interface gigabitethernet 1/0/0
    [*LSRA-GigabitEthernet1/0/0] isis enable 1
    [*LSRA-GigabitEthernet1/0/0] quit
    [*LSRA] interface loopback 1
    [*LSRA-LoopBack1] isis enable 1
    [*LSRA-LoopBack1] commit
    [~LSRA-LoopBack1] quit

    # Configure LSRB.

    [~LSRB] isis 1
    [*LSRB-isis-1] network-entity 00.0005.0000.0000.0002.00
    [*LSRB-isis-1] is-level level-1-2
    [*LSRB-isis-1] import-route isis level-2 into level-1
    [*LSRB-isis-1] quit
    [*LSRB] interface gigabitethernet 1/0/0
    [*LSRB-GigabitEthernet1/0/0] isis enable 1
    [*LSRB-GigabitEthernet1/0/0] quit
    [*LSRB] interface gigabitethernet 2/0/0
    [*LSRB-GigabitEthernet2/0/0] isis enable 1
    [*LSRB-GigabitEthernet2/0/0] quit
    [*LSRB] interface loopback 1
    [*LSRB-LoopBack1] isis enable 1
    [*LSRB-LoopBack1] commit
    [~LSRB-LoopBack1] quit

    # Configure LSRC.

    [~LSRC] isis 1
    [*LSRC-isis-1] network-entity 00.0006.0000.0000.0003.00
    [*LSRC-isis-1] is-level level-2
    [*LSRC-isis-1] quit
    [*LSRC] interface gigabitethernet 1/0/0
    [*LSRC-GigabitEthernet1/0/0] isis enable 1
    [*LSRC-GigabitEthernet1/0/0] quit
    [*LSRC] interface gigabitethernet 2/0/0
    [*LSRC-GigabitEthernet2/0/0] isis enable 1
    [*LSRC-GigabitEthernet2/0/0] quit
    [*LSRC] interface loopback 1
    [*LSRC-LoopBack1] isis enable 1
    [*LSRC-LoopBack1] commit
    [~LSRC-LoopBack1] quit

    # Configure LSRD.

    [~LSRD] isis 1
    [*LSRD-isis-1] network-entity 00.0007.0000.0000.0004.00
    [*LSRD-isis-1] is-level level-1-2
    [*LSRD-isis-1] import-route isis level-2 into level-1
    [*LSRD-isis-1] quit
    [*LSRD] interface gigabitethernet 1/0/0
    [*LSRD-GigabitEthernet1/0/0] isis enable 1
    [*LSRD-GigabitEthernet1/0/0] quit
    [*LSRD] interface gigabitethernet 2/0/0
    [*LSRD-GigabitEthernet2/0/0] isis enable 1
    [*LSRD-GigabitEthernet2/0/0] quit
    [*LSRD] interface loopback 1
    [*LSRD-LoopBack1] isis enable 1
    [*LSRD-LoopBack1] commit
    [~LSRD-LoopBack1] quit

    # Configure LSRE.

    [~LSRE] isis 1
    [*LSRE-isis-1] network-entity 00.0007.0000.0000.0005.00
    [*LSRE-isis-1] is-level level-1
    [*LSRE-isis-1] quit
    [*LSRE] interface gigabitethernet 1/0/0
    [*LSRE-GigabitEthernet1/0/0] isis enable 1
    [*LSRE-GigabitEthernet1/0/0] quit
    [*LSRE] interface loopback 1
    [*LSRE-LoopBack1] isis enable 1
    [*LSRE-LoopBack1] commit
    [~LSRE-LoopBack1] quit

    After completing the configurations, run the display ip routing-table command on every node. All nodes have learned routes from one another.

  3. Configure basic MPLS functions and enable MPLS TE, RSVP-TE, and CSPF on the ingress of the TE tunnel.

    # Configure LSRA.

    [~LSRA] mpls lsr-id 1.1.1.1
    [*LSRA] mpls
    [*LSRA-mpls] mpls te
    [*LSRA-mpls] mpls rsvp-te
    [*LSRA-mpls] mpls te cspf
    [*LSRA-mpls] quit
    [*LSRA] interface gigabitethernet 1/0/0
    [*LSRA-GigabitEthernet1/0/0] mpls
    [*LSRA-GigabitEthernet1/0/0] mpls te
    [*LSRA-GigabitEthernet1/0/0] mpls rsvp-te
    [*LSRA-GigabitEthernet1/0/0] commit
    [~LSRA-GigabitEthernet1/0/0] quit

    # Configure LSRB.

    [~LSRB] mpls lsr-id 2.2.2.2
    [*LSRB] mpls
    [*LSRB-mpls] mpls te
    [*LSRB-mpls] mpls rsvp-te
    [*LSRB-mpls] quit
    [*LSRB] interface gigabitethernet 1/0/0
    [*LSRB-GigabitEthernet1/0/0] mpls
    [*LSRB-GigabitEthernet1/0/0] mpls te
    [*LSRB-GigabitEthernet1/0/0] mpls rsvp-te
    [*LSRB-GigabitEthernet1/0/0] quit
    [*LSRB] interface gigabitethernet 2/0/0
    [*LSRB-GigabitEthernet2/0/0] mpls
    [*LSRB-GigabitEthernet2/0/0] mpls te
    [*LSRB-GigabitEthernet2/0/0] mpls rsvp-te
    [*LSRB-GigabitEthernet2/0/0] commit
    [~LSRB-GigabitEthernet2/0/0] quit

    # Configure LSRC.

    [~LSRC] mpls lsr-id 3.3.3.3
    [*LSRC] mpls
    [*LSRC-mpls] mpls te
    [*LSRC-mpls] mpls rsvp-te
    [*LSRC-mpls] quit
    [*LSRC] interface gigabitethernet 1/0/0
    [*LSRC-GigabitEthernet1/0/0] mpls
    [*LSRC-GigabitEthernet1/0/0] mpls te
    [*LSRC-GigabitEthernet1/0/0] mpls rsvp-te
    [*LSRC-GigabitEthernet1/0/0] quit
    [*LSRC] interface gigabitethernet 2/0/0
    [*LSRC-GigabitEthernet2/0/0] mpls
    [*LSRC-GigabitEthernet2/0/0] mpls te
    [*LSRC-GigabitEthernet2/0/0] mpls rsvp-te
    [*LSRC-GigabitEthernet2/0/0] commit
    [~LSRC-GigabitEthernet2/0/0] quit

    # Configure LSRD.

    [~LSRD] mpls lsr-id 4.4.4.4
    [*LSRD] mpls
    [*LSRD-mpls] mpls te
    [*LSRD-mpls] mpls rsvp-te
    [*LSRD-mpls] quit
    [*LSRD] interface gigabitethernet 1/0/0
    [*LSRD-GigabitEthernet1/0/0] mpls
    [*LSRD-GigabitEthernet1/0/0] mpls te
    [*LSRD-GigabitEthernet1/0/0] mpls rsvp-te
    [*LSRD-GigabitEthernet1/0/0] quit
    [*LSRD] interface gigabitethernet 2/0/0
    [*LSRD-GigabitEthernet2/0/0] mpls
    [*LSRD-GigabitEthernet2/0/0] mpls te
    [*LSRD-GigabitEthernet2/0/0] mpls rsvp-te
    [*LSRD-GigabitEthernet2/0/0] commit
    [~LSRD-GigabitEthernet2/0/0] quit

    # Configure LSRE.

    [~LSRE] mpls lsr-id 5.5.5.5
    [*LSRE] mpls
    [*LSRE-mpls] mpls te
    [*LSRE-mpls] mpls rsvp-te
    [*LSRE-mpls] quit
    [*LSRE] interface gigabitethernet 1/0/0
    [*LSRE-GigabitEthernet1/0/0] mpls
    [*LSRE-GigabitEthernet1/0/0] mpls te
    [*LSRE-GigabitEthernet1/0/0] mpls rsvp-te
    [*LSRE-GigabitEthernet1/0/0] commit
    [~LSRE-GigabitEthernet1/0/0] quit

  4. Configure IS-IS TE.

    # Configure LSRA.

    [~LSRA] isis 1
    [~LSRA-isis-1] cost-style wide
    [*LSRA-isis-1] traffic-eng level-1
    [*LSRA-isis-1] commit
    [~LSRA-isis-1] quit

    # Configure LSRB.

    [~LSRB] isis 1
    [~sLSRB-isis-1] cost-style wide
    [*LSRB-isis-1] traffic-eng level-1-2
    [*LSRB-isis-1] commit
    [~LSRB-isis-1] quit

    # Configure LSRC.

    [~LSRC] isis 1
    [~LSRC-isis-1] cost-style wide
    [*LSRC-isis-1] traffic-eng level-2
    [*LSRC-isis-1] commit
    [~LSRC-isis-1] quit

    # Configure LSRD.

    [~LSRD] isis 1
    [~LSRD-isis-1] cost-style wide
    [*LSRD-isis-1] traffic-eng level-1-2
    [*LSRD-isis-1] commit
    [~LSRD-isis-1] quit

    # Configure LSRE.

    [~LSRE] isis 1
    [~LSRE-isis-1] cost-style wide
    [*LSRE-isis-1] traffic-eng level-1
    [*LSRE-isis-1] commit
    [~LSRE-isis-1] quit

  5. Configure a loose explicit path.

    [~LSRA] explicit-path atoe enable
    [*LSRA-explicit-path-atoe] next hop 10.1.1.2 include loose
    [*LSRA-explicit-path-atoe] next hop 10.2.1.2 include loose
    [*LSRA-explicit-path-atoe] next hop 10.3.1.2 include loose
    [*LSRA-explicit-path-atoe] next hop 10.4.1.2 include loose
    [*LSRA-explicit-path-atoe] commit
    [~LSRE-isis-1] quit

  6. Configure MPLS TE attributes for links.

    # Set the maximum reservable bandwidth and BC0 bandwidth for links on LSRA.

    [~LSRA] interface gigabitethernet 1/0/0
    [~LSRA-GigabitEthernet1/0/0] mpls te bandwidth max-reservable-bandwidth 100000
    [*LSRA-GigabitEthernet1/0/0] mpls te bandwidth bc0 100000
    [*LSRA-GigabitEthernet1/0/0] commit
    [~LSRA-GigabitEthernet1/0/0] quit

    # Set the maximum bandwidth and reservable bandwidth for links on LSRB.

    [~LSRB] interface gigabitethernet 2/0/0
    [~LSRB-GigabitEthernet2/0/0] mpls te bandwidth max-reservable-bandwidth 100000
    [*LSRB-GigabitEthernet2/0/0] mpls te bandwidth bc0 100000
    [*LSRB-GigabitEthernet2/0/0] commit
    [~LSRB-GigabitEthernet2/0/0] quit

    # Set the maximum bandwidth and reservable bandwidth for links on LSRC.

    [~LSRC] interface gigabitethernet 1/0/0
    [~LSRC-GigabitEthernet1/0/0] mpls te bandwidth max-reservable-bandwidth 100000
    [*LSRC-GigabitEthernet1/0/0] mpls te bandwidth bc0 100000
    [*LSRC-GigabitEthernet1/0/0] commit
    [~LSRC-GigabitEthernet1/0/0] quit

    # Set the maximum bandwidth and reservable bandwidth for links on LSRD.

    [~LSRD] interface gigabitethernet 2/0/0
    [~LSRD-GigabitEthernet2/0/0] mpls te bandwidth max-reservable-bandwidth 100000
    [*LSRD-GigabitEthernet2/0/0] mpls te bandwidth bc0 100000
    [*LSRD-GigabitEthernet2/0/0] commit
    [~LSRD-GigabitEthernet2/0/0] quit

  7. Configure an MPLS RSVP-TE tunnel.

    # Configure the MPLS TE tunnel on LSRA.

    [~LSRA] interface tunnel 1
    [*LSRA-Tunnel1] ip address unnumbered interface loopback 1
    [*LSRA-Tunnel1] tunnel-protocol mpls te
    [*LSRA-Tunnel1] destination 5.5.5.5
    [*LSRA-Tunnel1] mpls te tunnel-id 1
    [*LSRA-Tunnel1] mpls te bandwidth ct0 20000
    [*LSRA-Tunnel1] mpls te path explicit-path atoe
    [*LSRA-Tunnel1] commit
    [~LSRA-Tunnel1] quit

  8. Verify the configuration.

    After completing the configuration, run the display interface tunnel command on LSRA. The tunnel interface is Up.

    [~LSRA] display interface Tunnel
    Tunnel1 current state : UP (ifindex: 26)
    Line protocol current state : UP 
    Last line protocol up time : 2012-03-08 04:52:40
    Description:
    Route Port,The Maximum Transmit Unit is 1500 
    Internet Address is unnumbered, using address of LoopBack1(1.1.1.1/32)
    Encapsulation is TUNNEL, loopback not set
    Tunnel destination 5.5.5.5
    Tunnel up/down statistics 1
    Tunnel protocol/transport MPLS/MPLS, ILM is available,
    primary tunnel id is 0x97, secondary tunnel id is 0x0
    Current system time: 2012-03-08 08:33:55
        300 seconds output rate 0 bits/sec, 0 packets/sec
        0 seconds output rate 0 bits/sec, 0 packets/sec
        126 packets output,  34204 bytes
        0 output error
        18 output drop
        Last 300 seconds input utility rate:  0.00%
        Last 300 seconds output utility rate: 0.00%

    # Run the display mpls te tunnel-interface command on LSRA. Detailed information about the TE tunnel interface is displayed.

    [~LSRA] display mpls te tunnel-interface tunnel1
        Tunnel Name       : Tunnel1
        Signalled Tunnel Name: -
        Tunnel State Desc : CR-LSP is Up
        Tunnel Attributes   :     
        Active LSP          : Primary LSP                                       
        Traffic Switch      : - 
        Session ID          : 1
        Ingress LSR ID      : 1.1.1.9               Egress LSR ID: 4.4.4.9
        Admin State         : UP                    Oper State   : UP
        Signaling Protocol  : RSVP
        FTid                : 1
        Tie-Breaking Policy : None                  Metric Type  : None
        Bfd Cap             : None                  
        Reopt               : Disabled              Reopt Freq   : -              
        Auto BW             : Disabled              Threshold    : 0 percent
        Current Collected BW: 0 kbps                Auto BW Freq : 0
        Min BW              : 0 kbps                Max BW       : 0 kbps
        Offload             : Disabled              Offload Freq : - 
        Low Value           : -                     High Value   : - 
        Readjust Value      : - 
        Offload Explicit Path Name: 
        Tunnel Group        : -                                              
        Interfaces Protected: -
        Excluded IP Address : -
        Referred LSP Count  : 0  
        Primary Tunnel      : -                     Pri Tunn Sum : -              
        Backup Tunnel       : -                                                    
        Group Status        : -                     Oam Status   : -             
        IPTN InLabel        : -                     Tunnel BFD Status : -                               
        BackUp LSP Type     : None                  BestEffort   : Disabled
        Secondary HopLimit  : -
        BestEffort HopLimit  : -
        Secondary Explicit Path Name: -
        Secondary Affinity Prop/Mask: 0x0/0x0
        BestEffort Affinity Prop/Mask: 0x0/0x0  
        IsConfigLspConstraint: -
        Hot-Standby Revertive Mode:  Revertive
        Hot-Standby Overlap-path:  Disabled
        Hot-Standby Switch State:  CLEAR
        Bit Error Detection:  Disabled
        Bit Error Detection Switch Threshold:  -
        Bit Error Detection Resume Threshold:  -
        Ip-Prefix Name    : -
        P2p-Template Name : -
        PCE Delegate      : Only status report      LSP Control Status : Local control
        Entropy Label       :None 
        Associated Tunnel Group ID: -                 Associated Tunnel Group Type: -
        Auto BW Remain Time : 200 s   Reopt Remain Time  : 100 s
    
        Primary LSP ID      : 1.1.1.9:19
        LSP State           : UP                    LSP Type     : Primary
        Setup Priority      : 7                     Hold Priority: 7
        IncludeAll          : 0x0
        IncludeAny          : 0x0
        ExcludeAny          : 0x0
        Affinity Prop/Mask  : 0x0/0x0               Resv Style   :  SE
        Configured Bandwidth Information:
        CT0 Bandwidth(Kbit/sec): 20000           CT1 Bandwidth(Kbit/sec): 0
        CT2 Bandwidth(Kbit/sec): 0               CT3 Bandwidth(Kbit/sec): 0
        CT4 Bandwidth(Kbit/sec): 0               CT5 Bandwidth(Kbit/sec): 0
        CT6 Bandwidth(Kbit/sec): 0               CT7 Bandwidth(Kbit/sec): 0
        Actual Bandwidth Information:
        CT0 Bandwidth(Kbit/sec): 20000           CT1 Bandwidth(Kbit/sec): 0
        CT2 Bandwidth(Kbit/sec): 0               CT3 Bandwidth(Kbit/sec): 0
        CT4 Bandwidth(Kbit/sec): 0               CT5 Bandwidth(Kbit/sec): 0
        CT6 Bandwidth(Kbit/sec): 0               CT7 Bandwidth(Kbit/sec): 0
        Explicit Path Name  : -                                Hop Limit: -
        Record Route        : Disabled              Record Label : Disabled
        Route Pinning       : Disabled
        FRR Flag            : Disabled
        IdleTime Remain     : -
        BFD Status          : -
        Soft Preemption     : Enabled 
        Reroute Flag        : Disabled
        Pce Flag            : Normal

Configuration Files

  • LSRA configuration file

    #
     sysname LSRA
    #
     mpls lsr-id 1.1.1.1
    #
     mpls
      mpls te
      mpls te cspf
      mpls rsvp-te
    #
     explicit-path atoe
      next hop 10.1.1.2 include loose
      next hop 10.2.1.2 include loose
      next hop 10.3.1.2 include loose
      next hop 10.4.1.2 include loose
    #
    isis 1
     is-level level-1
     cost-style wide
     traffic-eng level-1
     network-entity 00.0005.0000.0000.0001.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ip address 10.1.1.1 255.255.255.0
     mpls
     mpls te
     mpls te bandwidth max-reservable-bandwidth 100000
     mpls te bandwidth bc0 100000
     isis enable 1
     mpls rsvp-te
    #
    interface LoopBack1
     ip address 1.1.1.1 255.255.255.255
     isis enable 1
    #
    interface Tunnel1
     ip address unnumbered interface LoopBack1
     tunnel-protocol mpls te
     destination 5.5.5.5
     mpls te tunnel-id 1
     mpls te bandwidth ct0 20000
    mpls te path explicit-path atoe
    #
    return
  • LSRB configuration file

    #
     sysname LSRB
    #
     mpls lsr-id 2.2.2.2
    #
     mpls
      mpls te
      mpls rsvp-te
    #
    isis 1
     is-level level-1-2
     cost-style wide
     traffic-eng level-1-2
     import-route isis level-2 into level-1
     network-entity 00.0005.0000.0000.0002.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ip address 10.1.1.2 255.255.255.0
     mpls
     mpls te
     isis enable 1
     mpls rsvp-te
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ip address 10.2.1.1 255.255.255.0
     mpls
     mpls te
     mpls te bandwidth max-reservable-bandwidth 100000
     mpls te bandwidth bc0 100000
     isis enable 1
     mpls rsvp-te
    #
    interface LoopBack1
     ip address 2.2.2.2 255.255.255.255
     isis enable 1
    #
    return
  • LSRC configuration file

    #
     sysname LSRC
    #
     mpls lsr-id 3.3.3.3
    #
     mpls
      mpls te
      mpls rsvp-te
    #
    isis 1
     is-level level-2
     cost-style wide
     traffic-eng level-2
     network-entity 00.0006.0000.0000.0003.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ip address 10.3.1.1 255.255.255.0
     mpls
     mpls te
     mpls te bandwidth max-reservable-bandwidth 100000
     mpls te bandwidth bc0 100000
     isis enable 1
     mpls rsvp-te
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ip address 10.2.1.2 255.255.255.0
     mpls
     mpls te
     isis enable 1
     mpls rsvp-te
    #
    interface LoopBack1
     ip address 3.3.3.3 255.255.255.255
     isis enable 1
    #
    return
  • LSRD configuration file

    #
     sysname LSRD
    #
     mpls lsr-id 4.4.4.4
    #
     mpls
      mpls te
      mpls rsvp-te
    #
    isis 1
     is-level level-1-2
     cost-style wide
     traffic-eng level-1-2
     network-entity 00.0007.0000.0000.0004.00
     import-route isis level-2 into level-1
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ip address 10.3.1.2 255.255.255.0
     mpls
     mpls te
     isis enable 1
     mpls rsvp-te
    #
    interface GigabitEthernet2/0/0
     undo shutdown
     ip address 10.4.1.1 255.255.255.0
     mpls
     mpls te
     mpls te bandwidth max-reservable-bandwidth 100000
     mpls te bandwidth bc0 100000
     isis enable 1
     mpls rsvp-te
    #
    interface LoopBack1
     ip address 4.4.4.4 255.255.255.255
     isis enable 1
    #
    return
  • LSRE configuration file

    #
     sysname LSRE
    #
     mpls lsr-id 5.5.5.5
    #
     mpls
      mpls te
      mpls rsvp-te
    isis 1
     is-level level-1
     cost-style wide
     traffic-eng level-1
     network-entity 00.0007.0000.0000.0005.00
    #
    interface GigabitEthernet1/0/0
     undo shutdown
     ip address 10.4.1.2 255.255.255.0
     mpls
     mpls te
     isis enable 1
     mpls rsvp-te
    #
    interface LoopBack1
     ip address 5.5.5.5 255.255.255.255
     isis enable 1
    #
    return
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Updated: 2018-07-12

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