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Configuration Guide - VXLAN

CloudEngine 12800 and 12800E V200R003C00

This document describes the configurations of VXLAN.
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Configuring an IPv6 VXLAN Tunnel

Configuring an IPv6 VXLAN Tunnel

VXLAN is a tunnel encapsulation technology for large Layer 2 virtual networks. It uses MAC-in-UDP encapsulation to extend Layer 2 networks. If an underlay network is an IPv6 network, you can configure an IPv6 VXLAN tunnel for a virtual network to access a large number of tenants.

Context

After you configure local and remote VXLAN Network Identifiers (VNIs) and virtual tunnel end point's (VTEP's) IPv6 addresses, an IPv6 VXLAN tunnel is statically created. This configuration is simple, as no protocols are involved.

To ensure the proper forwarding of IPv6 VXLAN packets, IPv6 VXLAN tunnels must be configured on both Layer 2 and Layer 3 gateways.

NOTE:

After the IPv6 VXLAN tunnel on a Layer 3 gateway goes Down, the gateway deletes the ARP entries dynamically learned on the VXLAN tunnel side.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bridge-domain bd-id

    The BD view is displayed.

  3. Run vxlan vni vni-id

    A VNI is created and mapped to the BD.

    By default, no VNI is created.

  4. Run quit

    Return to the system view.

  5. (Optional) Run vxlan tunnel-status track exact-route

    Subscription to the status of the exact route to the VXLAN tunnel destination is enabled. The IPv6 VXLAN tunnel is Up only when the exact route to its destination IPv6 address is reachable.

    By default, subscription to the status of the exact route to a VXLAN tunnel destination is disabled. An IPv6 VXLAN tunnel is considered Up if the exact route to its source IPv6 address and the route to the network segment where its destination IPv6 address resides are reachable.

  6. Run interface nve nve-number

    An NVE interface is created, and the NVE interface view is displayed.

    By default, no NVE interface is created.

  7. Run source ipv6-address

    An IPv6 address is configured for the source VTEP.

    By default, no IPv6 address is configured for a source VTEP.

    Either a physical interface's IP address or loopback interface's address can be specified as a source VTEP's IPv6 address. Using the loopback interface's address is recommended.

  8. Run vni vni-id head-end peer-list ipv6-address &<1-10>

    An IPv6 ingress replication list is configured.

    By default, no IPv6 ingress replication list is configured.

  9. Run commit

    The configuration is committed.

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Updated: 2019-05-05

Document ID: EDOC1100004207

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