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Configuration Guide - IP Service

S1720, S2700, S5700, and S6720 V200R012(C00 and C20)

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.
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Enabling the Service Loopback Function on an Eth-Trunk

Enabling the Service Loopback Function on an Eth-Trunk

Context

Before enabling the service loopback function on an Eth-Trunk, note that only one interface enabled with the service loopback function is needed on a device. The interface must be idle and not transmitting services.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface eth-trunk trunk-id

    The Eth-Trunk interface view is displayed.

  3. Run service type tunnel

    The Eth-Trunk is enabled with the service loopback function.

    NOTE:

    You cannot configure both the service type tunnel command and the URPF function on the same Eth-Trunk.

    On an Eth-Trunk enabled with the service loopback function, the STP function is automatically disabled. After the service loopback function is disabled on the Eth-Trunk, the STP function is automatically enabled.

  4. Run quit

    Return to the system view.

  5. Run interface interface-type interface-number

    The interface view is displayed.

  6. Run eth-trunk trunk-id

    The interface is added to the Eth-Trunk.

Verifying the Configuration

Run the display this include-default command in Eth-Trunk interface view to check whether the Eth-Trunk interface is enabled with the service loopback function.

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Updated: 2018-12-24

Document ID: EDOC1100038342

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