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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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(Optional) Configuring MLD Snooping Proxy-Enabled Devices to Transparently Transmit Protocol Messages

(Optional) Configuring MLD Snooping Proxy-Enabled Devices to Transparently Transmit Protocol Messages

To prevent an MLD snooping proxy-enabled device and its upstream device from learning multicast forwarding entries from each other, configure them to transparently transmit protocol messages.

Context

If MLD snooping proxy is enabled on a Layer 2 device and its upstream device, the devices will learn the same multicast forwarding entries and constantly exchange MLD Query and Report messages, causing multicast entries not to age. Such multicast protocol and data message forwarding is meaninglessly and consumes bandwidth resources.

To address this issue, configure these devices to transparently transmit protocol messages. After this function is enabled, these devices can transparently transmit MLD messages received from a router interface to other router ports, instead of learning the multicast entries created based on these MLD messages. This function ensures proper aging of multicast entries.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Perform either of the following operations based on the VLAN or VPLS networking scenario:

    • Run the vlan vlan-id command to enter the VLAN view.
    • Run the vsi vsi-name [ static ] command to enter the VSI view.

  3. Run mld-snooping proxy router-protocol-pass

    The function to transparently transmit protocol messages is enabled.

  4. Run commit

    The configuration is committed.

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Updated: 2019-01-03

Document ID: EDOC1100055017

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