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CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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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 Basic IPv6 IS-IS Functions

Example for Configuring Basic IPv6 IS-IS Functions

Networking Requirements

As shown in Figure 8-2, there are four routers on the IPv6 topology network. The four routers need to communicate with each other. In addition, RouterA and Router B can only process less data.

Figure 8-2 Networking diagram of configuring basic IS-IS functions

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure IPv6 addresses on interfaces of each router so that the routers can be interconnected.

  2. Enable IS-IS on each router so that the routers can be interconnected. Configure RouterA and RouterB as Level-1 routers to enable them to maintain less data.

Procedure

  1. Enable the IPv6 forwarding capability, and configure an IPv6 address for each interface. The following uses the display on RouterA as an example. The configurations of the other three routers are the same as that of RouterA, and are not mentioned here.

    <Huawei> system-view
    [Huawei] sysname RouterA
    [RouterA] ipv6
    [RouterA] interface gigabitethernet 1/0/0
    [RouterA-GigabitEthernet1/0/0] ipv6 enable
    [RouterA-GigabitEthernet1/0/0] ipv6 address 10:1::2/64

  2. Configure IS-IS.

    # Configure RouterA.

    [RouterA] isis 1
    [RouterA-isis-1] is-level level-1
    [RouterA-isis-1] network-entity 10.0000.0000.0001.00
    [RouterA-isis-1] ipv6 enable
    [RouterA-isis-1] quit
    [RouterA] interface gigabitethernet 1/0/0
    [RouterA-GigabitEthernet1/0/0] isis ipv6 enable 1
    [RouterA-GigabitEthernet1/0/0] quit

    # Configure RouterB.

    [RouterB] isis 1 
    [RouterB-isis-1] is-level level-1
    [RouterB-isis-1] network-entity 10.0000.0000.0002.00
    [RouterB-isis-1] ipv6 enable
    [RouterB-isis-1] quit
    [RouterB] interface gigabitethernet 1/0/0
    [RouterB-GigabitEthernet1/0/0] isis ipv6 enable 1
    [RouterB-GigabitEthernet1/0/0] quit

    # Configure RouterC.

    [RouterC] isis 1
    [RouterC-isis-1] network-entity 10.0000.0000.0003.00
    [RouterC-isis-1] ipv6 enable
    [RouterC-isis-1] quit
    [RouterC] interface gigabitethernet 1/0/0
    [RouterC-GigabitEthernet1/0/0] isis ipv6 enable 1
    [RouterC-GigabitEthernet1/0/0] quit
    [RouterC] interface gigabitethernet 2/0/0
    [RouterC-GigabitEthernet2/0/0] isis ipv6 enable 1
    [RouterC-GigabitEthernet2/0/0] quit
    [RouterC] interface gigabitethernet 3/0/0
    [RouterC-GigabitEthernet3/0/0] isis ipv6 enable 1
    [RouterC-GigabitEthernet3/0/0] isis circuit-level level-2
    [RouterC-GigabitEthernet3/0/0] quit

    # Configure RouterD.

    [RouterD] isis 1 
    [RouterD-isis-1] is-level level-2
    [RouterD-isis-1] network-entity 20.0000.0000.0004.00
    [RouterD-isis-1] ipv6 enable
    [RouterD-isis-1] quit
    [RouterD] interface GigabitEthernet 1/0/0
    [RouterD-GigabitEthernet1/0/0] isis ipv6 enable 1
    [RouterD-GigabitEthernet1/0/0] quit
    [RouterD] interface GigabitEthernet 2/0/0
    [RouterD-GigabitEthernet2/0/0] isis ipv6 enable 1
    [RouterD-GigabitEthernet2/0/0] quit

  3. Verify the configuration.

    # View the IS-IS routing table of RouterA.

    [RouterA] display isis route
    
    
                             Route information for ISIS(1)
                             -----------------------------
    
    
                            ISIS(1) Level-1 Forwarding Table
                            --------------------------------
    IPV6 Dest.     ExitInterface     NextHop                  Cost         Flags
    ----------------------------------------------------------------------------
     10:1::/64     GigabitEthernet1/0/0          Direct                   10           D/L/-
     10:2::/64     GigabitEthernet1/0/0          FE80::A83E:0:3ED2:1      20           A/-/-
    
    
          Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut,
                                    U-Up/Down Bit Set

    # View the IS-IS neighbor information on RouterC.

    [RouterC] display isis peer verbose
    
    
                              Peer information for ISIS(1)
      System Id     Interface          Circuit Id          State  HoldTime   Type     PRI
    -------------------------------------------------------------------------------
    0000.0000.0001  GE1/0/0           0000000001             Up     24s       L1       --
      MT IDs supported     : 0(UP)
      Local MT IDs         : 0 
      Area Address(es)     : 10
      Peer IPv6 Address(es): FE80::996B:0:9419:1
      Uptime               : 00:44:43
      Adj Protocol         : IPV6
      Restart Capable      : YES
      Suppressed Adj       : NO
      Peer System Id       : 0000.0000.0001
    
    
    0000.0000.0002  GE2/0/0           0000000001             Up     28s       L1       --
      MT IDs supported     : 0(UP)
      Local MT IDs         : 0 
      Area Address(es)     : 10
      Peer IPv6 Address(es): FE80::DC40:0:47A9:1
      Uptime               : 00:46:13
      Adj Protocol         : IPV6
      Restart Capable      : YES
      Suppressed Adj       : NO
      Peer System Id       : 0000.0000.0002
    
    
    0000.0000.0004  GE3/0/0           0000000001             Up     24s       L2       --
      MT IDs supported     : 0(UP)
      Local MT IDs         : 0 
      Area Address(es)     : 20
      Peer IPv6 Address(es): FE80::F81D:0:1E24:2
      Uptime               : 00:53:18
      Adj Protocol         : IPV6
      Restart Capable      : YES
      Suppressed Adj       : NO
      Peer System Id       : 0000.0000.0004
    
    
    Total Peer(s): 3

    # View the IS-IS LSDB information on RouterC.

    [RouterC] display isis lsdb verbose
    
    
                            Database information for ISIS(1)
                            --------------------------------
                              Level-1 Link State Database
    
    
    LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL
    -------------------------------------------------------------------------------
    
    
    0000.0000.0001.00-00  0x0000000c   0x4e06        1117          113     3/0/0
     SOURCE       0000.0000.0001.00
     NLPID        IPV6
     AREA ADDR    10
     INTF ADDR V6 10:1::2
     Topology     Standard
     NBR  ID      0000.0000.0003.00  COST: 10
     IPV6         10:1::/64                       COST: 10
    
    
    0000.0000.0002.00-00  0x00000009   0x738c        1022          83      3/0/0
     SOURCE       0000.0000.0002.00
     NLPID        IPV6
     AREA ADDR    10
     INTF ADDR V6 10:2::2
     Topology     Standard
     NBR  ID      0000.0000.0003.00  COST: 10
     IPV6         10:2::/64                       COST: 10
    
    
    0000.0000.0003.00-00* 0x00000020   0x6b10        771           140     1/0/0
     SOURCE       0000.0000.0003.00
     NLPID        IPV6
     AREA ADDR    10
     INTF ADDR V6 30::1
     INTF ADDR V6 10:2::1
     INTF ADDR V6 10:1::1
     Topology     Standard
     NBR  ID      0000.0000.0002.00  COST: 10
     NBR  ID      0000.0000.0001.00  COST: 10
     IPV6         10:2::/64                       COST: 10
     IPV6         10:1::/64                       COST: 10
    Total LSP(s): 3
      *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
              ATT-Attached, P-Partition, OL-Overload
    
    
                              Level-2 Link State Database
    
    
    LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL
    -------------------------------------------------------------------------------
    
    
    0000.0000.0003.00-00* 0x00000017   0x61b4        771           157     3/0/0
     SOURCE       0000.0000.0003.00
     NLPID        IPV6
     AREA ADDR    10
     INTF ADDR V6 30::1
     INTF ADDR V6 10:2::1
     INTF ADDR V6 10:1::1
     Topology     Standard
     NBR  ID      0000.0000.0004.00  COST: 10
     IPV6         30::/64                         COST: 10
     IPV6         10:2::/64                       COST: 10
     IPV6         10:1::/64                       COST: 10
    
    
    0000.0000.0004.00-00  0x0000000b   0x6dfa        1024          124     3/0/0
     SOURCE       0000.0000.0004.00
     NLPID        IPV6
     AREA ADDR    20
     INTF ADDR V6 30::2
     INTF ADDR V6 20::1
     Topology     Standard
     NBR  ID      0000.0000.0003.00  COST: 10
     NBR  ID      0000.0000.0005.00  COST: 10
     IPV6         30::/64                         COST: 10
     IPV6         20::/64                         COST: 10
    Total LSP(s): 2
      *(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
              ATT-Attached, P-Partition, OL-Overload

Configuration Files

  • Configuration file of RouterA

    #
     sysname RouterA
    #
    ipv6
    #
    isis 1
     is-level level-1
     network-entity 10.0000.0000.0001.00
     #
     ipv6 enable topology standard
    #
    interface GigabitEthernet1/0/0
     ipv6 enable
     ipv6 address 10:1::2/64
     isis ipv6 enable 1
    #
    return
  • Configuration file of RouterB

    #
     sysname RouterB
    #
    ipv6
    #
    isis 1
     is-level level-1
     network-entity 10.0000.0000.0002.00
     #
     ipv6 enable topology standard
    #
    interface GigabitEthernet1/0/0
     ipv6 enable
     ipv6 address 10:2::2/64
     isis ipv6 enable 1
    #
    return
  • Configuration file of RouterC

    #
     sysname RouterC
    #
    ipv6
    #
    isis 1
     network-entity 10.0000.0000.0003.00
     #
     ipv6 enable topology standard
    #
    interface GigabitEthernet1/0/0
     ipv6 enable
     ipv6 address 10:1::1/64
     isis ipv6 enable 1
    #
    interface GigabitEthernet2/0/0
     ipv6 enable
     ipv6 address 10:2::1/64
     isis ipv6 enable 1
    #
    interface GigabitEthernet3/0/0
     ipv6 enable
     ipv6 address 30::1/64
     isis ipv6 enable 1
     isis circuit-level level-2
    #
    return
  • Configuration file of RouterD

    #
     sysname RouterD
    #
    ipv6
    #
    isis 1
     is-level level-2
     network-entity 20.0000.0000.0004.00
     #
     ipv6 enable topology standard
    #
    interface GigabitEthernet2/0/0
     ipv6 enable
     ipv6 address 20::1/64
     isis ipv6 enable 1
    #
    interface GigabitEthernet1/0/0
     ipv6 enable
     ipv6 address 30::2/64
     isis ipv6 enable 1
    #
    return
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Updated: 2019-05-17

Document ID: EDOC1000174069

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