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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Configuring the Upper and Lower Alarm Thresholds for PIM Entries

Configuring the Upper and Lower Alarm Thresholds for PIM Entries

Context

A switch supports a limited number of PIM entries. After the number of PIM entries reaches the maximum value, no more PIM entries can be created. As a result, some multicast traffic cannot be forwarded. To facilitate network operations and maintenance, configure the upper and lower alarm thresholds for PIM entries. PIM entry alarms and clear alarms help you learn PIM entry usage in a timely manner. You can adjust the alarm thresholds for PIM entries based on service requirements.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    multicast-mib

    The multicast management information base (MIB) view is displayed.

  3. Run:

    pim { star-group-number | source-group-number } threshold-alarm upper-limit upper-limit-value lower-limit lower-limit-value

    The upper and lower alarm thresholds for PIM entries are set.

    • star-group-number indicates the alarm thresholds set for PIM (*, G) entries.
    • source-group-number indicates the alarm thresholds set for PIM (S, G) entries.
    • upper-limit-value specifies the upper alarm threshold. If the proportion of existing PIM entries to the maximum number reaches this threshold, a PIM entry alarm is reported.
    • lower-limit-value specifies the lower alarm threshold. If the proportion of existing PIM entries to the maximum number falls below this threshold, a PIM entry clear alarm is reported.
    • upper-limit-value must be larger than lower-limit-value.

    By default, upper-limit-value is 80% and lower-limit-value is 75%.

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Updated: 2019-08-21

Document ID: EDOC1000141903

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