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S600-E V200R012C00 Configuration Guide - IP Multicast

This document describes the configurations of IP multicast, including IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, controllable multicast, multicast network management.
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Setting the Aging Time of Dynamic Router Ports

Setting the Aging Time of Dynamic Router Ports

Context

A router port sends IGMP Report/Leave messages to an upstream Layer 3 device and receives multicast packets from the upstream device. When IGMP snooping is enabled on a device, the device can learn entries of the dynamic router port to monitor the sending of multicast data. When network congestion or flapping occurs, the dynamic router port does not receive General IGMP Query or Protocol Independent Multicast (PIM) Hello messages before it times out. The switch deletes the interface from the router port list, which will cause service interruption. To avoid service interruption, set a longer aging time.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run vlan vlan-id

    The VLAN view is displayed.

  3. Run igmp-snooping router-aging-time router-aging-time

    The aging time is set for dynamic router ports.

    By default, the aging time of router ports that the switch learns from General IGMP Query messages is 180 seconds, and the aging time of router ports that the switch learns from PIM Hello messages is the Holdtime value in PIM Hello messages.

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Updated: 2018-09-01

Document ID: EDOC1100037948

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