IP Routing: OSPF Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 1000)
Graceful Shutdown Support for OSPFv3
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Graceful Shutdown Support for OSPFv3

Graceful Shutdown Support for OSPFv3

This feature provides the ability to temporarily shut down an Open Shortest Path First version 3 (OSPFv3) process or interface in the least disruptive manner, and to notify its neighbors that it is going away. A graceful shutdown of a protocol can be initiated on all OSPFv3 interfaces or on a specific interface.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Information About Graceful Shutdown Support for OSPFv3

OSPFv3 Graceful Shutdown

The Graceful Shutdown for OSPFv3 feature provides the ability to temporarily shut down the OSPFv3 protocol in the least disruptive manner and to notify its neighbors that it is going away. All traffic that has another path through the network will be directed to that alternate path. A graceful shutdown of the OSPFv3 protocol can be initiated using the shutdown command in router configuration mode or in address family configuration mode.

This feature also provides the ability to shut down OSPFv3 on a specific interface. In this case, OSPFv3 will not advertise the interface or form adjacencies over it; however, all of the OSPFv3 interface configuration will be retained. To initiate a graceful shutdown of an interface, use the ipv6 ospf shutdown or the ospfv3 shutdown command in interface configuration mode.

How to Configure Graceful Shutdown Support for OSPFv3

Configuring Graceful Shutdown of the OSPFv3 Process

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    Do one of the following:

    • ipv6 router ospf process-id
    • router ospfv3 process-id

    4.    shutdown

    5.    end

    6.    Do one of the following:

    • show ipv6 ospf [process-id]
    • show ospfv3 [process-id]


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Device> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.
     
    Step 2 configure terminal


    Example:
    Device# configure terminal
     

    Enters global configuration mode.

     
    Step 3Do one of the following:
    • ipv6 router ospf process-id
    • router ospfv3 process-id


    Example:
    Device(config)# ipv6 router ospf 1


    Example:
    Device(config)# router ospfv3 101
     

    Enables OSPFv3 routing and enters router configuration mode.

     
    Step 4 shutdown


    Example:
    Device(config-router)# shutdown
     

    Shuts down the selected interface.

     
    Step 5 end


    Example:
    Device(config-router)# end
     

    Returns to privileged EXEC mode.

     
    Step 6Do one of the following:
    • show ipv6 ospf [process-id]
    • show ospfv3 [process-id]


    Example:
    Device# show ipv6 ospf


    Example:
    Device# show ospfv3
     

    (Optional) Displays general information about OSPFv3 routing processes.

     

    Configuring Graceful Shutdown of the OSPFv3 Process in Address-Family Configuration Mode

    SUMMARY STEPS

      1.    enable

      2.    configure terminal

      3.    router ospfv3 [process-id]

      4.    address-family ipv6 unicast [vrf vrf-name]

      5.    shutdown

      6.    end

      7.    show ospfv3 [process-id]


    DETAILED STEPS
       Command or ActionPurpose
      Step 1 enable


      Example:
      Device> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 configure terminal


      Example:
      Device# configure terminal
       

      Enters global configuration mode.

       
      Step 3 router ospfv3 [process-id]


      Example:
      Device(config)# router ospfv3 1
       

      Enables router configuration mode for the IPv6 address family.

       
      Step 4 address-family ipv6 unicast [vrf vrf-name]


      Example:
      Device(config-router)#address-family ipv6
       

      Enters IPv6 address family configuration mode for OSPFv3.

       
      Step 5 shutdown


      Example:
      Device(config-router-af)# shutdown
       

      Shuts down the selected interface.

       
      Step 6 end


      Example:
      Device(config-router-af)# end
       

      Returns to privileged EXEC mode.

       
      Step 7 show ospfv3 [process-id]


      Example:
      Device# show ospfv3
       

      (Optional) Displays general information about OSPFv3 routing processes.

       

      Configuring OSPFv3 Graceful Shutdown of the OSPFv3 Interface

      SUMMARY STEPS

        1.    enable

        2.    configure terminal

        3.    interface type number

        4.    Do one of the following:

        • ipv6 ospf shutdown
        • ospfv3 shutdown

        5.    end

        6.    show ospfv3 process-id area-id address-family [ vrf {vrf-name | * }] interface [type number] [brief]


      DETAILED STEPS
         Command or ActionPurpose
        Step 1 enable


        Example:
        Device> enable
         

        Enables privileged EXEC mode.

        • Enter your password if prompted.
         
        Step 2 configure terminal


        Example:
        Device# configure terminal
         

        Enters global configuration mode.

         
        Step 3 interface type number


        Example:
        Device(config)# interface GigabitEthernet
         

        Configures an interface type and number and enters interface configuration mode.

         
        Step 4Do one of the following:
        • ipv6 ospf shutdown
        • ospfv3 shutdown


        Example:
        Device(config-if)# ipv6 ospf shutdown


        Example:
        Device(config-if)# ospfv3 process-id ipv6 shutdown
         

        Initiates an OSPFv3 protocol graceful shutdown at the interface level.

        • When the ipv6 ospf shutdown interface command is entered, the interface on which it is configured sends a link-state update advising its neighbors that is going down, which allows those neighbors to begin routing OSPFv3 traffic around this device.
         
        Step 5 end


        Example:
        Device(config-if)# end
         

        Returns to privileged EXEC mode.

         
        Step 6 show ospfv3 process-id area-id address-family [ vrf {vrf-name | * }] interface [type number] [brief]


        Example:
        Device# show ospfv3 1 interface
         

        (Optional) Displays OSPFv3-related interface information.

         

        Configuration Examples for Graceful Shutdown Support for OSPFv3

        Example: Configuring Graceful Shutdown of the OSPFv3 Process

        The following example shows how to configure graceful shutdown of the OSPFv3 process in IPv6 router OSPF configuration mode configuration mode:

        ipv6 router ospf 6
         router-id 10.10.10.10
         shutdown
        

        The following example shows how to configure graceful shutdown of the OSPFv3 process in router OSPFv3 configuration mode:

        !
        router ospfv3 1
         shutdown
         !
         address-family ipv6 unicast
          exit-address-family
        

        The following example shows how to configure graceful shutdown of the OSPFv3 process in address-family configuration mode:

        !
        router ospfv3 1
         !
         address-family ipv6 unicast
          shutdown
          exit-address-family
        

        Example: Configuring Graceful Shutdown of the OSPFv3 Interface

        The following example shows how to configure graceful shutdown of the OSPFv3 interface using the ipv6 ospf shutdown command:

        !
        interface Serial2/1
         no ip address
         ipv6 enable
         ipv6 ospf 6 area 0
         ipv6 ospf shutdown
         serial restart-delay 0
         end
        

        The following example shows how to configure graceful shutdown of the OSPFv3 interface using the ospfv3 shutdown command:

        !
        interface Serial2/0
         ip address 10.10.10.10 255.255.255.0
         ip ospf 1 area 0
         ipv6 enable
         ospfv3 shutdown
         ospfv3 1 ipv6 area 0
         serial restart-delay 0
         end
        

        Additional References for Graceful Shutdown Support for OSPFv3

        Related Documents

        Related Topic

        Document Title

        Configuring OSPF

        “Configuring OSPF”

        OSPF commands

        Cisco IOS IP Routing: OSPF Command Reference

        Cisco IOS commands

        Cisco IOS Master Command List, All Releases

        Technical Assistance

        Description

        Link

        The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

        http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

        Feature Information for Graceful Shutdown Support for OSPFv3

        The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

        Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

        Table 1 Feature Information for Graceful Shutdown Support for OSPFv3

        Feature Name

        Releases

        Feature Information

        Graceful Shutdown Support for OSPFv3

        Cisco IOS XE Release 3.8

        15.3(1)S

        15.3(2)T

        15.2(1)E

        This feature provides the ability to temporarily shut down an Open Shortest Path First version 3 (OSPFv3) process or interface in the least disruptive manner, and to notify its neighbors that it is going away.

        A graceful shutdown of a protocol can be initiated on all OSPFv3 interfaces or on a specific interface.

        The following commands were introduced:

        • ipv6 ospf shutdown
        • ospfv3 shutdown
        • shutdown (router ospfv3)