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CLI-based Configuration Guide - IP Service

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.

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Disabling the Routing and Forwarding Function on High-end LAN Cards

Disabling the Routing and Forwarding Function on High-end LAN Cards

Context

You can enable or disable the routing and forwarding function on high-end LAN cards to redirect the packets received on high-end LAN cards to the sub-core CPU.

By default, the routing and forwarding function is enabled on high-end LAN cards (8FE1GE and 24GE cards) to implement IP packet routing and forwarding. Configuring ACLs on high-end LAN cards (8FE1GE and 24GE cards) is complex, and ACL-based traffic policy and URPF cannot be configured on high-end LAN cards. This restricts the use of ACLs. When the routing and forwarding function is disabled on high-end LAN cards, you can redirect the packets received on high-end LAN cards to the sub-core CPU for packet forwarding. In this situation, you can configure ACL-based traffic policies and URPF and simplify the ACL configuration.

NOTE:
Only AR2200, AR3600, and AR3200 support this function.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run set workmode lan-card l3centralize

    The routing and forwarding function is disabled on high-end LAN cards (8FE1GE and 24GE cards).

    • After this command is used, an interface can only be manually added to a voice VLAN.
    • After this command is used, protocol packets with source or destination MAC addresses as blackhole MAC addresses will not be discarded.
    • After this command is used, the device CPU usage increases.

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Updated: 2019-03-06

Document ID: EDOC1100069333

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