No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
Rate and give feedback :
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring a Limit on the Number of IPv4 PIM-SM Entries

Configuring a Limit on the Number of IPv4 PIM-SM Entries

Context

IPv4 PIM-SM allows you to limit the number of (S, G) and (*, G) entries separately. After a specified limit is reached, new entries of the corresponding type are not created.

Limit the number of PIM entries to prevent a device from generating excessive multicast routing entries when attackers send numerous multicast data or IGMP/PIM protocol messages. Therefore, this function helps prevent high memory and CPU usage and improve multicast service security.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run multicast global limit pim sm { star-group-number | source-group-number } limit-count [ threshold-alarm upper-limit upper-limit-value lower-limit lower-limit-value ]

    A limit on the number of PIM entries and alarm trigger and clear thresholds are set.

    star-group-number indicates that the configuration takes effect for (*, G) entries. source-group-number indicates that the configuration takes effect for (S, G) entries.

    After the command is run:
    • After the specified limit is reached, new entries are not created, and the PIM_1.3.6.1.4.1.2011.5.25.149.4.0.23 routeExceed alarm is generated.

      NOTE:

      After the specified limit is reached, new (*, G) and (S, G) entries can be manually added.

    • If upper-limit upper-limit-value is set, the PIM_1.3.6.1.4.1.2011.5.25.149.4.0.21 routeThresholdExceed alarm is generated when the percentage ratio of created PIM entries to the specified limit reaches upper-limit-value.

    By default, no limit is set on the number of global IPv4 PIM entries.

  3. Run commit

    The configuration is committed.

Verifying the Configuration

After a limit on the number of global IPv4 PIM entries is configured, you can check PIM entry restriction and statistics.

Run the display multicast global pim sm statistics command to check PIM entry restriction and statistics.
Translation
Download
Updated: 2019-04-20

Document ID: EDOC1100039595

Views: 47161

Downloads: 85

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next