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Configuration Guide - Reliability

CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, EFM Configuration, and CFM Configuration.
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Creating a VRRP6 Group

Creating a VRRP6 Group

Context

VRRP6 virtualizes multiple devices into one virtual router without changing the networking, and uses the virtual router's IP address as the default gateway address to implement next-hop gateway backup. After a VRRP6 group is configured, traffic is forwarded through the master. When the master fails, a new master is selected from backups to forward traffic. This ensures device-level reliability.

If load balancing is required in addition to gateway backup, configure two or more VRRP6 groups on an interface in single-gateway load balancing mode or multi-gateway load balancing mode.

Procedure

  1. Create a VRRP6 group working in active/standby mode.
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The interface view is displayed.

    3. On an Ethernet interface, run undo portswitch

      The interface is switched to Layer 3 mode.

      By default, an Ethernet interface works in Layer 2 mode.

      The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.

      NOTE:

      If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

    4. Run ipv6 enable

      IPv6 is enabled on the interface.

      By default, the IPv6 function is disabled on an interface.

    5. Run ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length }

      An IPv6 address is configured for the interface.

    6. Run vrrp6 vrid virtual-router-id virtual-ip virtual-ipv6-address [ link-local ]

      A VRRP6 group is created, and a virtual IPv6 address is assigned to the VRRP6 group.

      By default, no VRRP6 group is created.

      The first virtual IPv6 address of a VRRP6 group must be a link-local address.

      NOTE:
      • VRRP groups and VRRP6 groups on an interface must be configured with different VRIDs.

    7. Run commit

      The configuration is committed.

  2. Create VRRP6 groups working in multi-gateway load balancing mode.

    If VRRP6 groups need to work in multi-gateway load balancing mode, repeat the preceding step to configure two or more VRRP6 groups on the interface and assign different VRIDs to them.

  3. Create VRRP6 groups working in single-gateway load balancing mode.

    NOTE:

    The device supports single-gateway load balancing for common VRRP6 groups, including those that have been bound to an mVRRP6 group.

    1. Run system-view

      The system view is displayed.

    2. (Optional) Run vrrp member-lbrg timer hello hello-time

      An interval at which the master in the LBRG configured using a service VRRP6 group sends VRRP6 Advertisement packets is set.

      The default interval is 120s.

      To ensure that the MAC entries on a downstream switch can be promptly updated, you can configure an interval at which the master device in an LBRG configured using a service VRRP6 group sends VRRP6 Advertisement packets to meet requirements for network reliability.

    3. Run interface interface-type interface-number

      The interface view is displayed.

    4. On an Ethernet interface, run undo portswitch

      The interface is switched to Layer 3 mode.

      By default, an Ethernet interface works in Layer 2 mode.

      The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.

      NOTE:

      If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

    5. Run ipv6 enable

      IPv6 is enabled on the interface.

    6. Run ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length }

      An IPv6 address is configured for the interface.

    7. Run vrrp6 vrid virtual-router-id [ virtual-ip virtual-ipv6-address [ link-local ] ]

      A VRRP6 group is created and assigned a virtual IPv6 address.

      • If you use the VRRP6 group as a VRRP6 LBRG, you must assign a virtual IPv6 address to the VRRP6 group.
      • If you use the VRRP6 group as a VRRP6 LBRG member group, you do not need to assign a virtual IPv6 address to the VRRP6 group.

    8. Run vrrp6 vrid virtual-router-id priority priority-value

      A priority is configured for the device in the VRRP6 group.

    9. Run vrrp6 vrid virtual-router-id load-balance

      A VRRP6 LBRG is created.

    10. Run vrrp6 vrid virtual-router-id join load-balance-vrrp vrid lb-vrid-value

      A VRRP6 group is added to the VRRP6 LBRG.

    11. Run commit

      The configuration is committed.

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Updated: 2019-03-21

Document ID: EDOC1000166606

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